/* ==========================================================================
   SIKKHALAY INSTITUTE PORTAL — SERVICES & SUBSCRIPTIONS PRODUCTION STYLESHEET
   Comprehensive, ultra-responsive, zero-FOUC compatible design system
   ========================================================================== */

:root {
    --srv-primary: #059669;
    --srv-primary-dark: #047857;
    --srv-primary-light: #10b981;
    --srv-primary-subtle: rgba(5, 150, 105, 0.08);
    --srv-accent: #f59e0b;
    --srv-accent-dark: #d97706;
    --srv-accent-subtle: rgba(245, 158, 11, 0.12);
    
    /* MFS Brand Identifiers */
    --srv-bkash: #e2136e;
    --srv-nagad: #f97316;
    --srv-rocket: #8b5cf6;
    --srv-bank: #0284c7;

    /* Gradients */
    --srv-grad-hero: linear-gradient(135deg, #064e3b 0%, #065f46 45%, #047857 85%, #0d9488 100%);
    --srv-grad-popular: linear-gradient(135deg, #059669 0%, #10b981 50%, #06b6d4 100%);
    --srv-grad-orange: linear-gradient(135deg, #ea580c 0%, #f59e0b 100%);
    --srv-grad-purple: linear-gradient(135deg, #7c3aed 0%, #a855f7 100%);
    --srv-grad-advisor: linear-gradient(135deg, rgba(5, 150, 105, 0.08) 0%, rgba(6, 182, 212, 0.08) 100%);
    
    /* Shadows & Glows */
    --srv-glow-popular: 0 16px 36px -8px rgba(5, 150, 105, 0.32), 0 0 0 1px rgba(16, 185, 129, 0.4);
    --srv-glow-offer: 0 14px 30px -6px rgba(234, 88, 12, 0.22);
}

[data-theme="dark"] {
    --srv-primary-subtle: rgba(16, 185, 129, 0.12);
    --srv-accent-subtle: rgba(245, 158, 11, 0.15);
    --srv-grad-hero: linear-gradient(135deg, #022c22 0%, #064e3b 50%, #065f46 100%);
    --srv-glow-popular: 0 16px 36px -8px rgba(16, 185, 129, 0.24), 0 0 0 1px rgba(16, 185, 129, 0.5);
    --srv-glow-offer: 0 14px 30px -6px rgba(234, 88, 12, 0.18);
    --srv-grad-advisor: linear-gradient(135deg, rgba(5, 150, 105, 0.14) 0%, rgba(6, 182, 212, 0.12) 100%);
}

.page-view {
    padding: clamp(1rem, 2.5vw, 1.75rem);
    max-width: 100%;
    box-sizing: border-box;
}

/* ==========================================================================
   1. SIMULATION PILL IN HEADER
   ========================================================================== */
.srv-sim-pill-group {
    display: flex;
    align-items: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 2px 4px;
    border-radius: var(--radius-full, 9999px);
    gap: 3px;
    box-shadow: var(--shadow-sm);
}

.srv-sim-btn {
    background: transparent;
    border: none;
    padding: 4px 10px;
    border-radius: var(--radius-full, 9999px);
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: all 0.2s ease;
}

.srv-sim-btn:hover {
    color: var(--text-main);
}

.srv-sim-btn.active {
    background: var(--brand-primary);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(5, 150, 105, 0.3);
}

.srv-sim-btn#simBtnFree.active {
    background: var(--srv-grad-orange);
    box-shadow: 0 2px 8px rgba(234, 88, 12, 0.35);
}

/* ==========================================================================
   2. HERO SERVICES COMMAND BANNER
   ========================================================================== */
.srv-hero-banner {
    position: relative;
    background: var(--srv-grad-hero);
    border-radius: var(--radius-xl, 16px);
    padding: clamp(1.25rem, 3vw, 2rem);
    color: #ffffff;
    margin-bottom: 1.5rem;
    box-shadow: 0 16px 32px -8px rgba(0, 0, 0, 0.28);
    border: 1px solid rgba(255, 255, 255, 0.15);
    overflow: hidden;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.srv-hero-banner::after {
    content: '';
    position: absolute;
    top: -40%;
    right: -10%;
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, rgba(16, 185, 129, 0.08) 45%, rgba(0, 0, 0, 0) 70%);
    pointer-events: none;
}

.srv-hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
}

.srv-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.16);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius-full, 9999px);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #fef08a;
    margin-bottom: 0.85rem;
}

.srv-hero-title {
    font-size: clamp(1.4rem, 2.6vw, 2.1rem);
    font-weight: 800;
    line-height: 1.22;
    margin-bottom: 0.5rem;
    color: #ffffff;
    letter-spacing: -0.01em;
}

.srv-hero-desc {
    font-size: clamp(0.85rem, 1.2vw, 0.95rem);
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.55;
    margin: 0;
}

.srv-hero-chips {
    display: flex;
    gap: 0.6rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.srv-hero-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.16);
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full, 9999px);
    color: #ffffff;
}

.srv-hero-actions {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
}

.srv-live-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full, 9999px);
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: #ffffff;
}

.srv-live-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #10b981;
    box-shadow: 0 0 10px #10b981;
    animation: srvPulseDot 1.8s infinite;
}

@keyframes srvPulseDot {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.6; }
}

/* ==========================================================================
   3. SMART AI PLAN ADVISOR & ROI SAVINGS WIDGET
   ========================================================================== */
.srv-smart-advisor {
    background: var(--srv-grad-advisor);
    border: 1px solid rgba(5, 150, 105, 0.3);
    border-radius: var(--radius-xl, 16px);
    padding: 1.35rem 1.6rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.25rem;
    position: relative;
    overflow: hidden;
}

.srv-advisor-left {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    flex: 1;
    min-width: 300px;
}

.srv-advisor-badge-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-lg, 12px);
    background: var(--srv-grad-popular);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    box-shadow: 0 8px 18px rgba(5, 150, 105, 0.35);
}

.srv-advisor-title {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.srv-advisor-desc {
    font-size: 0.86rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-top: 0.25rem;
}

.srv-roi-metrics {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    align-items: center;
}

.srv-roi-item {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 0.65rem 1rem;
    border-radius: var(--radius-md, 10px);
    display: flex;
    flex-direction: column;
}

.srv-roi-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
}

.srv-roi-val {
    font-size: 1.15rem;
    font-weight: 900;
    color: var(--srv-primary);
}

/* ==========================================================================
   4. PROMO VOUCHER / COUPON CODE ENGINE
   ========================================================================== */
.srv-coupon-bar {
    background: var(--bg-surface);
    border: 1px dashed var(--srv-primary);
    border-radius: var(--radius-lg, 12px);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.srv-coupon-input-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.srv-coupon-tag {
    background: var(--srv-primary-subtle);
    color: var(--srv-primary);
    font-weight: 800;
    font-size: 0.8rem;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm, 6px);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    cursor: pointer;
}

/* ==========================================================================
   5. PSYCHOLOGICAL CONVERSION OFFER BANNER (FREE / TRIAL STATE)
   ========================================================================== */
.srv-free-offer-card {
    background: linear-gradient(135deg, rgba(234, 88, 12, 0.08) 0%, rgba(245, 158, 11, 0.12) 100%);
    border: 2px dashed #f59e0b;
    border-radius: var(--radius-xl, 16px);
    padding: clamp(1.2rem, 2vw, 1.6rem);
    margin-bottom: 2rem;
    position: relative;
    box-shadow: var(--srv-glow-offer);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    backdrop-filter: blur(8px);
}

.srv-free-offer-left {
    display: flex;
    align-items: flex-start;
    gap: 1.15rem;
    flex: 1;
    min-width: 290px;
}

.srv-free-offer-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-lg, 12px);
    background: var(--srv-grad-orange);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.45rem;
    flex-shrink: 0;
    box-shadow: 0 8px 18px rgba(234, 88, 12, 0.38);
    animation: srvPulse 2.2s infinite ease-in-out;
}

@keyframes srvPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.srv-free-offer-title {
    font-size: clamp(1.1rem, 1.8vw, 1.3rem);
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0.35rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
    line-height: 1.25;
}

.srv-free-offer-badge {
    background: #ef4444;
    color: white;
    font-size: 0.68rem;
    font-weight: 800;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full, 9999px);
    letter-spacing: 0.04em;
    text-transform: uppercase;
    box-shadow: 0 2px 8px rgba(239, 68, 68, 0.35);
}

.srv-free-offer-text {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.srv-free-offer-points {
    display: flex;
    gap: 1rem;
    margin-top: 0.75rem;
    flex-wrap: wrap;
    font-size: 0.8rem;
    font-weight: 700;
}

.srv-free-point {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--status-success);
}

.srv-free-offer-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.65rem;
}

.srv-countdown-box {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    font-family: 'JetBrains Mono', monospace;
    font-weight: 800;
}

.srv-countdown-unit {
    background: var(--bg-surface);
    border: 1px solid #f59e0b;
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-sm, 6px);
    color: #ea580c;
    font-size: 0.95rem;
    box-shadow: var(--shadow-sm);
}

/* Active VIP Loyalty Box */
.srv-vip-loyalty-box {
    background: linear-gradient(135deg, rgba(5, 150, 105, 0.06), rgba(16, 185, 129, 0.12));
    border: 1px solid rgba(16, 185, 129, 0.35);
    border-radius: var(--radius-xl, 16px);
    padding: 1.25rem 1.5rem;
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    box-shadow: var(--shadow-sm);
}

/* ==========================================================================
   6. TELEMETRY & QUOTA METRIC CARDS
   ========================================================================== */
.srv-kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2.25rem;
}

.srv-kpi-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl, 16px);
    padding: 1.35rem;
    box-shadow: var(--shadow-sm);
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
}

.srv-kpi-card:hover {
    border-color: var(--srv-primary);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.srv-kpi-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.85rem;
}

.srv-kpi-title {
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.srv-kpi-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-lg, 10px);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.srv-kpi-val {
    font-size: clamp(1.5rem, 2.2vw, 1.85rem);
    font-weight: 900;
    color: var(--text-main);
    line-height: 1.15;
    margin-bottom: 0.4rem;
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
}

.srv-kpi-sub {
    font-size: 0.78rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.srv-progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: var(--radius-full, 9999px);
    overflow: hidden;
    margin: 0.6rem 0 0.4rem 0;
}

.srv-progress-fill {
    height: 100%;
    background: var(--srv-primary);
    border-radius: var(--radius-full, 9999px);
    transition: width 0.5s ease-out;
}

/* ==========================================================================
   7. TIERED SUBSCRIPTION PLANS SECTION
   ========================================================================== */
.srv-section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.srv-section-title-group {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.srv-section-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-lg, 12px);
    background: var(--srv-primary-subtle);
    color: var(--srv-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.srv-section-title {
    font-size: clamp(1.2rem, 2vw, 1.45rem);
    font-weight: 800;
    color: var(--text-main);
    margin: 0;
    letter-spacing: -0.01em;
}

.srv-section-sub {
    font-size: 0.84rem;
    color: var(--text-muted);
    margin: 0.2rem 0 0 0;
}

/* Pricing Switcher Bar */
.srv-pricing-switcher {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 0.3rem;
    border-radius: var(--radius-full, 9999px);
    box-shadow: var(--shadow-sm);
}

.srv-switch-btn {
    background: transparent;
    border: none;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full, 9999px);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.srv-switch-btn.active {
    background: var(--srv-primary);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.3);
}

.srv-save-pill {
    background: #ef4444;
    color: white;
    font-size: 0.65rem;
    font-weight: 800;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full, 9999px);
    margin-left: 0.25rem;
    letter-spacing: 0.02em;
}

/* Plans Grid */
.srv-plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.75rem;
    margin-bottom: 3rem;
    align-items: stretch;
}

.srv-plan-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl, 20px);
    padding: 1.85rem 1.65rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    position: relative;
    box-shadow: var(--shadow-sm);
}

.srv-plan-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--srv-primary);
}

/* Highlighting the Standard Growth Plan */
.srv-plan-card.popular {
    border: 2px solid var(--srv-primary-light);
    box-shadow: var(--srv-glow-popular);
    background: var(--bg-surface);
}

.srv-plan-badge-popular {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--srv-grad-popular);
    color: white;
    font-size: 0.72rem;
    font-weight: 800;
    padding: 0.3rem 1rem;
    border-radius: var(--radius-full, 9999px);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 12px rgba(5, 150, 105, 0.4);
    white-space: nowrap;
    z-index: 3;
}

.srv-plan-name {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0.35rem;
    line-height: 1.2;
}

.srv-plan-subtitle {
    font-size: 0.82rem;
    color: var(--text-muted);
    margin-bottom: 1.25rem;
    min-height: 2.4em;
    line-height: 1.45;
}

.srv-plan-price-box {
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
}

.srv-plan-price-main {
    font-size: 2.1rem;
    font-weight: 900;
    color: var(--text-main);
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
    line-height: 1;
}

.srv-plan-price-main span {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
}

.srv-plan-price-sub {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.35rem;
    font-weight: 600;
}

.srv-plan-limits {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1.25rem;
}

.srv-plan-limit-chip {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full, 9999px);
    background: var(--srv-primary-subtle);
    color: var(--srv-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.srv-features-title {
    font-size: 0.75rem;
    font-weight: 800;
    color: var(--text-muted);
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    letter-spacing: 0.04em;
}

.srv-features-list {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.srv-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 0.55rem;
    font-size: 0.84rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

.srv-feature-check {
    color: var(--srv-primary);
    font-weight: 900;
    flex-shrink: 0;
    margin-top: 1px;
}

/* ==========================================================================
   8. DEDICATED SMS SERVICES COCKPIT & RECHARGE
   ========================================================================== */
.srv-sms-cockpit {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl, 20px);
    padding: clamp(1.25rem, 2.5vw, 1.85rem);
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-sm);
}

.srv-sms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.15rem;
    margin-bottom: 1.75rem;
}

.srv-sms-card {
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 14px);
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.25s ease;
    position: relative;
}

.srv-sms-card:hover {
    border-color: var(--srv-primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.srv-sms-card.popular {
    border: 2px solid var(--srv-primary);
    background: var(--bg-surface);
    box-shadow: 0 8px 24px -6px rgba(5, 150, 105, 0.2);
}

.srv-sms-badge-popular {
    position: absolute;
    top: -10px;
    right: 14px;
    background: var(--srv-primary);
    color: white;
    font-size: 0.65rem;
    font-weight: 800;
    padding: 0.18rem 0.65rem;
    border-radius: var(--radius-full, 9999px);
    text-transform: uppercase;
    box-shadow: 0 2px 8px rgba(5, 150, 105, 0.35);
}

.srv-sms-name {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0.35rem;
}

.srv-sms-count {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--srv-primary);
    display: flex;
    align-items: baseline;
    gap: 0.35rem;
}

.srv-sms-unit {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

.srv-sms-price {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-main);
    margin: 0.35rem 0;
}

.srv-sms-tag {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm, 6px);
    background: var(--srv-primary-subtle);
    color: var(--srv-primary);
    margin-bottom: 0.85rem;
}

/* Custom Calculator */
.srv-sms-calculator {
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 14px);
    padding: 1.35rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.srv-calc-input-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    flex: 1;
}

.srv-calc-box {
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.srv-calc-price-display {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--srv-primary);
}

/* Quick Volume Chips */
.srv-volume-chips {
    display: flex;
    gap: 0.45rem;
    margin-top: 0.4rem;
    flex-wrap: wrap;
}

.srv-volume-chip {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius-full, 9999px);
    font-size: 0.72rem;
    font-weight: 700;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s ease;
}

.srv-volume-chip:hover, .srv-volume-chip.active {
    border-color: var(--srv-primary);
    color: var(--srv-primary);
    background: var(--srv-primary-subtle);
}

/* 1-Click Interactive SMS Templates */
.srv-template-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-top: 1.5rem;
}

.srv-template-card {
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.srv-template-card:hover {
    border-color: var(--srv-primary);
    background: var(--srv-primary-subtle);
    transform: translateY(-2px);
}

.srv-template-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 800;
    color: var(--text-main);
    margin-bottom: 0.35rem;
}

.srv-template-preview {
    font-size: 0.76rem;
    color: var(--text-secondary);
    line-height: 1.45;
    margin-bottom: 0.6rem;
}

.srv-template-action {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--srv-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

/* ==========================================================================
   9. FEATURE COMPARISON MATRIX
   ========================================================================== */
.srv-comparison-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl, 20px);
    padding: clamp(1.25rem, 2.5vw, 1.75rem);
    margin-bottom: 2.75rem;
    box-shadow: var(--shadow-sm);
    overflow-x: auto;
}

.srv-comparison-table {
    width: 100%;
    min-width: 680px;
    border-collapse: collapse;
}

.srv-comparison-table th, .srv-comparison-table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.85rem;
}

.srv-comparison-table th {
    background: var(--bg-page);
    font-weight: 800;
    color: var(--text-main);
}

.srv-comparison-table td.highlight, .srv-comparison-table th.highlight {
    background: var(--srv-primary-subtle);
    color: var(--srv-primary);
    font-weight: 700;
}

/* ==========================================================================
   10. CHECKOUT & RECHARGE MODALS
   ========================================================================== */
.srv-channel-selector {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.srv-channel-btn {
    background: var(--bg-page);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: 0.75rem 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-main);
    transition: all 0.2s ease;
}

.srv-channel-btn:hover {
    border-color: var(--srv-primary);
}

.srv-channel-btn.active {
    border-color: var(--srv-primary);
    background: var(--srv-primary-subtle);
    color: var(--srv-primary);
}

.srv-pay-instruction {
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: 1.15rem;
    margin-bottom: 1.25rem;
    font-size: 0.84rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.srv-copy-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm, 6px);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--brand-primary);
    cursor: pointer;
    margin-left: 0.4rem;
    transition: all 0.2s ease;
}

.srv-copy-btn:hover {
    background: var(--brand-primary);
    color: white;
    border-color: var(--brand-primary);
}

.srv-char-counter {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
}

/* ==========================================================================
   MODAL OVERLAY & DIALOG SYSTEM (BULLETPROOF CENTERING & HIGH Z-INDEX)
   ========================================================================== */
.srv-modal-overlay,
.modal-backdrop {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    bottom: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    background: rgba(15, 23, 42, 0.75) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    z-index: 99999 !important;
    display: none;
    align-items: center !important;
    justify-content: center !important;
    padding: 1.25rem !important;
    box-sizing: border-box !important;
    opacity: 0;
    transition: opacity 0.22s ease;
}

.srv-modal-overlay.active,
.modal-backdrop.active {
    display: flex !important;
    opacity: 1 !important;
}

.srv-modal-dialog,
.modal-content {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-xl, 18px) !important;
    width: 100% !important;
    max-width: 580px !important;
    max-height: 90vh !important;
    overflow-y: auto !important;
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.45) !important;
    display: flex !important;
    flex-direction: column !important;
    animation: srvModalPop 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
    position: relative !important;
    z-index: 100000 !important;
    box-sizing: border-box !important;
}

@keyframes srvModalPop {
    from { transform: scale(0.94) translateY(12px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.modal-header {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 1.25rem 1.5rem !important;
    border-bottom: 1px solid var(--border-color) !important;
}

.modal-title {
    font-size: 1.2rem !important;
    font-weight: 800 !important;
    color: var(--text-main) !important;
    margin: 0 !important;
}

.modal-body {
    padding: 1.5rem !important;
    overflow-y: auto !important;
}

.modal-footer {
    display: flex !important;
    align-items: center !important;
    justify-content: flex-end !important;
    gap: 0.75rem !important;
    padding: 1rem 1.5rem !important;
    border-top: 1px solid var(--border-color) !important;
    background: var(--bg-page) !important;
    border-bottom-left-radius: var(--radius-xl, 18px) !important;
    border-bottom-right-radius: var(--radius-xl, 18px) !important;
}

.icon-btn {
    background: transparent !important;
    border: none !important;
    color: var(--text-muted) !important;
    font-size: 1.25rem !important;
    cursor: pointer !important;
    padding: 0.4rem !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: var(--radius-full, 9999px) !important;
    transition: all 0.2s ease !important;
}

.icon-btn:hover {
    color: var(--text-main) !important;
    background: var(--border-color) !important;
}

/* Toast Notifications */
.srv-toast {
    position: fixed !important;
    bottom: 2rem !important;
    right: 2rem !important;
    z-index: 100000 !important;
    background: var(--bg-surface) !important;
    color: var(--text-main) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg, 12px) !important;
    padding: 0.85rem 1.25rem !important;
    box-shadow: 0 16px 36px -6px rgba(0, 0, 0, 0.25) !important;
    display: flex !important;
    align-items: center !important;
    gap: 0.75rem !important;
    font-size: 0.88rem !important;
    font-weight: 700 !important;
    opacity: 0 !important;
    pointer-events: none !important;
    transform: translateY(20px) scale(0.95) !important;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.srv-toast.show {
    opacity: 1 !important;
    pointer-events: auto !important;
    transform: translateY(0) scale(1) !important;
}

/* ==========================================================================
   11. HELPER UTILITIES & SUBTLE TOUCH HINTS
   ========================================================================== */
.srv-modal-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.srv-modal-price-banner {
    background: var(--bg-page);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg, 12px);
    padding: 1rem 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.srv-calc-inputs-wrapper {
    flex: 1;
    min-width: 260px;
}

.table-scroll-hint {
    display: none;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.72rem;
    color: var(--text-muted);
    margin-bottom: 0.45rem;
    font-weight: 600;
}

/* ==========================================================================
   12. MOBILE RESPONSIVENESS & TOUCH OPTIMIZATION (< 1024px, < 768px, < 480px, < 420px, < 360px)
   ========================================================================== */
@media (max-width: 1024px) {
    .srv-plans-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 1.25rem;
    }
}

@media (max-width: 768px) {
    .srv-hero-banner {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.25rem;
    }

    .srv-hero-actions {
        align-items: flex-start;
        width: 100%;
    }

    .srv-hero-actions button {
        width: 100%;
        justify-content: center;
    }

    .srv-smart-advisor {
        flex-direction: column;
        align-items: flex-start;
    }

    .srv-roi-metrics {
        width: 100%;
    }

    .srv-roi-item {
        flex: 1;
    }

    .srv-free-offer-card {
        flex-direction: column;
        align-items: flex-start;
        padding: 1.15rem;
    }

    .srv-free-offer-right {
        align-items: flex-start;
        width: 100%;
    }

    .srv-free-offer-right button {
        width: 100%;
        justify-content: center;
    }

    .srv-pricing-switcher {
        width: 100%;
        justify-content: center;
    }

    .srv-switch-btn {
        flex: 1;
        justify-content: center;
        padding: 0.45rem 0.75rem;
        font-size: 0.8rem;
    }

    .srv-channel-selector {
        grid-template-columns: repeat(2, 1fr);
    }

    .srv-sms-calculator {
        flex-direction: column;
        align-items: stretch;
    }

    .srv-sms-calculator button {
        width: 100%;
        justify-content: center;
    }

    .srv-tables-split {
        grid-template-columns: 1fr !important;
    }

    .table-scroll-hint {
        display: inline-flex;
    }
}

@media (max-width: 480px) {
    .content-area {
        padding: 6px !important;
        overflow-x: hidden !important;
    }

    .page-view {
        padding: 0.75rem 0.5rem !important;
        max-width: 100vw !important;
        box-sizing: border-box !important;
    }

    .srv-kpi-grid {
        grid-template-columns: 1fr;
        gap: 0.85rem;
    }
    
    .srv-sms-grid {
        grid-template-columns: 1fr;
        gap: 0.85rem;
    }

    .srv-hero-title {
        font-size: 1.3rem;
    }

    .srv-sim-pill-group {
        display: none !important; /* Hide header simulator on ultra small screen to save space */
    }

    .srv-modal-grid-2 {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
    }
}

/* Specific production refinements for <= 420px (e.g. 390px, 375px, 360px, 320px) */
@media (max-width: 420px) {
    /* Header Optimization */
    .header {
        height: 56px !important;
        padding: 0 8px !important;
    }

    .mobile_header_left {
        gap: 6px !important;
    }

    .mobile_header_left .logo-icon {
        width: 26px !important;
        height: 26px !important;
    }

    .mobile_header_left .brand-name {
        font-size: 0.82rem !important;
        letter-spacing: 0.02em !important;
    }

    .mobile_header_left .portal-tag {
        font-size: 8px !important;
        padding: 1px 4px !important;
    }

    .header-right {
        gap: 3px !important;
    }

    .header-icon-btn {
        width: 32px !important;
        height: 32px !important;
    }

    .header-icon-btn i {
        font-size: 14px !important;
    }

    .header-profile-avatar {
        width: 24px !important;
        height: 24px !important;
    }

    #adminUserMenuDropdown {
        position: fixed !important;
        top: 58px !important;
        left: 10px !important;
        right: 10px !important;
        width: calc(100vw - 20px) !important;
        max-width: 300px !important;
        margin-left: auto !important;
    }

    /* Page View Spacing */
    .page-view {
        padding: 0.65rem 0.4rem !important;
    }

    /* Hero Banner */
    .srv-hero-banner {
        padding: 1rem 0.75rem !important;
        border-radius: 14px !important;
        margin-bottom: 1rem !important;
        gap: 0.85rem !important;
    }

    .srv-hero-badge {
        font-size: 0.65rem !important;
        padding: 0.2rem 0.5rem !important;
        margin-bottom: 0.5rem !important;
        gap: 0.35rem !important;
        max-width: 100% !important;
        white-space: normal !important;
        word-break: break-word !important;
    }

    .srv-hero-title {
        font-size: 1.15rem !important;
        line-height: 1.25 !important;
        margin-bottom: 0.4rem !important;
        word-break: break-word !important;
    }

    .srv-hero-desc {
        font-size: 0.78rem !important;
        line-height: 1.45 !important;
    }

    .srv-hero-chips {
        gap: 0.3rem !important;
        margin-top: 0.65rem !important;
    }

    .srv-hero-chip {
        font-size: 0.65rem !important;
        padding: 0.2rem 0.45rem !important;
        gap: 0.3rem !important;
    }

    .srv-hero-actions {
        width: 100% !important;
        align-items: stretch !important;
        margin-top: 0.5rem !important;
        gap: 0.5rem !important;
    }

    .srv-live-indicator {
        width: 100% !important;
        justify-content: center !important;
        font-size: 0.68rem !important;
        padding: 0.3rem 0.5rem !important;
        text-align: center !important;
    }

    .srv-hero-actions div[style*="display:flex"] {
        width: 100% !important;
    }

    .srv-hero-actions button {
        width: 100% !important;
        font-size: 0.8rem !important;
        padding: 0.6rem 0.75rem !important;
        justify-content: center !important;
    }

    /* Smart AI Advisor */
    .srv-smart-advisor {
        padding: 0.85rem 0.75rem !important;
        border-radius: 14px !important;
        margin-bottom: 1rem !important;
        gap: 0.75rem !important;
    }

    .srv-advisor-left {
        min-width: 0 !important;
        width: 100% !important;
        flex-direction: column !important;
        gap: 0.5rem !important;
    }

    .srv-advisor-badge-icon {
        width: 36px !important;
        height: 36px !important;
        font-size: 1rem !important;
        border-radius: 10px !important;
    }

    .srv-advisor-title {
        font-size: 0.88rem !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.25rem !important;
        line-height: 1.3 !important;
    }

    .srv-advisor-desc {
        font-size: 0.76rem !important;
        line-height: 1.4 !important;
        margin-top: 0.2rem !important;
    }

    .srv-roi-metrics {
        width: 100% !important;
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 0.4rem !important;
        margin-top: 0.35rem !important;
    }

    .srv-roi-item {
        padding: 0.45rem 0.5rem !important;
        border-radius: 8px !important;
    }

    .srv-roi-item:nth-child(3) {
        grid-column: span 2 !important;
    }

    .srv-roi-label {
        font-size: 0.64rem !important;
    }

    .srv-roi-val {
        font-size: 1rem !important;
    }

    .srv-roi-metrics button {
        grid-column: span 2 !important;
        width: 100% !important;
        font-size: 0.78rem !important;
        padding: 0.6rem !important;
        justify-content: center !important;
    }

    /* Conversion Offer Banner & VIP Loyalty */
    .srv-free-offer-card {
        padding: 0.85rem 0.75rem !important;
        border-radius: 14px !important;
        margin-bottom: 1rem !important;
        gap: 0.75rem !important;
    }

    .srv-free-offer-left {
        min-width: 0 !important;
        width: 100% !important;
        flex-direction: column !important;
        gap: 0.5rem !important;
    }

    .srv-free-offer-icon {
        width: 38px !important;
        height: 38px !important;
        font-size: 1.1rem !important;
        border-radius: 10px !important;
    }

    .srv-free-offer-title {
        font-size: 0.92rem !important;
        line-height: 1.3 !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.25rem !important;
    }

    .srv-free-offer-badge {
        font-size: 0.6rem !important;
        padding: 0.15rem 0.45rem !important;
    }

    .srv-free-offer-text {
        font-size: 0.76rem !important;
        line-height: 1.4 !important;
    }

    .srv-free-offer-points {
        flex-direction: column !important;
        gap: 0.35rem !important;
        font-size: 0.72rem !important;
        margin-top: 0.5rem !important;
    }

    .srv-free-offer-right {
        width: 100% !important;
        align-items: stretch !important;
        margin-top: 0.35rem !important;
        gap: 0.5rem !important;
    }

    .srv-free-offer-right > div:first-child {
        text-align: center !important;
        font-size: 0.72rem !important;
    }

    .srv-countdown-box {
        justify-content: center !important;
        gap: 0.2rem !important;
    }

    .srv-countdown-unit {
        font-size: 0.75rem !important;
        padding: 0.2rem 0.35rem !important;
    }

    .srv-free-offer-right button {
        width: 100% !important;
        font-size: 0.78rem !important;
        padding: 0.65rem 0.5rem !important;
        white-space: normal !important;
        line-height: 1.3 !important;
        justify-content: center !important;
    }

    .srv-vip-loyalty-box {
        padding: 0.85rem 0.75rem !important;
        border-radius: 14px !important;
        margin-bottom: 1rem !important;
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.75rem !important;
    }

    .srv-vip-loyalty-box > div:first-child {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.5rem !important;
    }

    .srv-vip-loyalty-box button {
        width: 100% !important;
        font-size: 0.8rem !important;
        justify-content: center !important;
    }

    /* KPI Quota Cards */
    .srv-kpi-grid {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
        margin-bottom: 1.25rem !important;
    }

    .srv-kpi-card {
        padding: 0.85rem 0.75rem !important;
        border-radius: 12px !important;
    }

    .srv-kpi-card-header {
        margin-bottom: 0.5rem !important;
    }

    .srv-kpi-title {
        font-size: 0.7rem !important;
    }

    .srv-kpi-icon {
        width: 32px !important;
        height: 32px !important;
        font-size: 0.95rem !important;
    }

    .srv-kpi-val {
        font-size: 1.4rem !important;
        margin-bottom: 0.25rem !important;
    }

    .srv-kpi-sub {
        font-size: 0.7rem !important;
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.2rem !important;
    }

    /* Coupon Bar */
    .srv-coupon-bar {
        padding: 0.75rem !important;
        border-radius: 12px !important;
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.6rem !important;
        margin-bottom: 1.25rem !important;
    }

    .srv-coupon-bar > div:first-child {
        gap: 0.5rem !important;
    }

    .srv-coupon-bar i {
        font-size: 1rem !important;
    }

    .srv-coupon-bar > div:first-child div > div:first-child {
        font-size: 0.8rem !important;
    }

    .srv-coupon-bar > div:first-child div > div:last-child {
        font-size: 0.7rem !important;
    }

    .srv-coupon-input-group {
        flex-direction: column !important;
        width: 100% !important;
        gap: 0.4rem !important;
    }

    .srv-coupon-tag {
        width: 100% !important;
        justify-content: center !important;
        font-size: 0.72rem !important;
        padding: 0.35rem 0.5rem !important;
    }

    #couponCodeInput {
        width: 100% !important;
        max-width: 100% !important;
        text-align: center !important;
        font-size: 0.8rem !important;
        height: 38px !important;
        box-sizing: border-box !important;
    }

    .srv-coupon-input-group button {
        width: 100% !important;
        font-size: 0.8rem !important;
        height: 38px !important;
        justify-content: center !important;
    }

    /* SaaS Plan Cards & Billing Switcher */
    .srv-section-heading {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.75rem !important;
        margin-bottom: 1rem !important;
    }

    .srv-section-title-group {
        gap: 0.5rem !important;
    }

    .srv-section-icon {
        width: 34px !important;
        height: 34px !important;
        font-size: 1rem !important;
    }

    .srv-section-title {
        font-size: 1.05rem !important;
    }

    .srv-section-sub {
        font-size: 0.74rem !important;
    }

    .srv-pricing-switcher {
        width: 100% !important;
        display: flex !important;
        flex-direction: column !important;
        padding: 3px !important;
        border-radius: 10px !important;
        gap: 3px !important;
        box-sizing: border-box !important;
    }

    .srv-switch-btn {
        width: 100% !important;
        justify-content: center !important;
        padding: 0.5rem 0.35rem !important;
        font-size: 0.76rem !important;
        border-radius: 8px !important;
        flex-wrap: wrap !important;
    }

    .srv-save-pill {
        font-size: 0.6rem !important;
        padding: 0.1rem 0.35rem !important;
        margin-top: 2px !important;
    }

    .srv-plans-grid {
        grid-template-columns: 1fr !important;
        gap: 1.25rem !important;
        margin-bottom: 2rem !important;
    }

    .srv-plan-card {
        padding: 1.15rem 0.85rem !important;
        border-radius: 14px !important;
    }

    .srv-plan-badge-popular {
        font-size: 0.62rem !important;
        padding: 0.2rem 0.6rem !important;
        top: -10px !important;
        width: auto !important;
        max-width: 90% !important;
    }

    .srv-plan-name {
        font-size: 1.15rem !important;
    }

    .srv-plan-subtitle {
        font-size: 0.76rem !important;
        min-height: auto !important;
        margin-bottom: 0.85rem !important;
    }

    .srv-plan-price-box {
        padding: 0.75rem !important;
        margin-bottom: 0.85rem !important;
    }

    .srv-plan-price-main {
        font-size: 1.55rem !important;
        flex-wrap: wrap !important;
    }

    .srv-plan-price-main span {
        font-size: 0.75rem !important;
    }

    .srv-plan-price-sub {
        font-size: 0.7rem !important;
    }

    .srv-plan-limits {
        flex-direction: column !important;
        gap: 0.35rem !important;
        margin-bottom: 0.85rem !important;
    }

    .srv-plan-limit-chip {
        font-size: 0.7rem !important;
        padding: 0.25rem 0.5rem !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }

    .srv-features-title {
        font-size: 0.7rem !important;
        margin-bottom: 0.5rem !important;
    }

    .srv-features-list {
        gap: 0.45rem !important;
        margin-bottom: 1rem !important;
    }

    .srv-feature-item {
        font-size: 0.75rem !important;
    }

    .srv-plan-card button {
        width: 100% !important;
        font-size: 0.8rem !important;
        padding: 0.65rem !important;
        justify-content: center !important;
    }

    /* SMS Cockpit & Calculator */
    .srv-sms-cockpit {
        padding: 0.85rem 0.75rem !important;
        border-radius: 14px !important;
        margin-bottom: 1.5rem !important;
    }

    .srv-sms-cockpit .srv-section-heading > div:last-child {
        width: 100% !important;
        display: flex !important;
        flex-direction: column !important;
        gap: 0.4rem !important;
    }

    .srv-sms-cockpit .srv-section-heading > div:last-child button {
        width: 100% !important;
        font-size: 0.78rem !important;
        padding: 0.55rem !important;
        justify-content: center !important;
    }

    .srv-sms-grid {
        grid-template-columns: 1fr !important;
        gap: 0.75rem !important;
        margin-bottom: 1.25rem !important;
    }

    .srv-sms-card {
        padding: 0.85rem 0.75rem !important;
        border-radius: 12px !important;
    }

    .srv-sms-name {
        font-size: 0.95rem !important;
    }

    .srv-sms-count {
        font-size: 1.3rem !important;
    }

    .srv-sms-price {
        font-size: 1.05rem !important;
    }

    .srv-sms-tag {
        font-size: 0.68rem !important;
        margin-bottom: 0.65rem !important;
    }

    .srv-sms-card button {
        width: 100% !important;
        font-size: 0.78rem !important;
        padding: 0.55rem !important;
        justify-content: center !important;
    }

    .srv-sms-calculator {
        padding: 0.85rem 0.75rem !important;
        border-radius: 12px !important;
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.85rem !important;
    }

    .srv-calc-input-group {
        flex-direction: column !important;
        align-items: stretch !important;
        width: 100% !important;
        gap: 0.75rem !important;
    }

    .srv-calc-input-group > div:first-child,
    .srv-calc-inputs-wrapper {
        width: 100% !important;
        min-width: 0 !important;
    }

    .srv-calc-input-group > div:first-child > div[style*="display:flex"] {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 0.5rem !important;
    }

    #customSmsInput {
        max-width: 100% !important;
        width: 100% !important;
        text-align: center !important;
        box-sizing: border-box !important;
    }

    #customSmsSlider {
        width: 100% !important;
    }

    .srv-volume-chips {
        gap: 0.25rem !important;
        justify-content: flex-start !important;
    }

    .srv-volume-chip {
        font-size: 0.65rem !important;
        padding: 0.2rem 0.4rem !important;
    }

    .srv-calc-box {
        width: 100% !important;
        justify-content: space-between !important;
        align-items: center !important;
        padding: 0.65rem 0.75rem !important;
        border-radius: 8px !important;
        background: var(--bg-surface) !important;
        border: 1px solid var(--border-color) !important;
        box-sizing: border-box !important;
    }

    .srv-calc-price-display {
        font-size: 1.35rem !important;
    }

    .srv-sms-calculator > button {
        width: 100% !important;
        font-size: 0.82rem !important;
        padding: 0.7rem !important;
        justify-content: center !important;
    }

    .srv-template-grid {
        grid-template-columns: 1fr !important;
        gap: 0.6rem !important;
    }

    .srv-template-card {
        padding: 0.75rem !important;
        border-radius: 10px !important;
    }

    .srv-template-header {
        font-size: 0.8rem !important;
    }

    .srv-template-preview {
        font-size: 0.72rem !important;
    }

    .srv-template-action {
        font-size: 0.68rem !important;
    }

    /* Comparison Matrix & Tables */
    .srv-comparison-box {
        padding: 0.85rem 0.75rem !important;
        border-radius: 12px !important;
        margin-bottom: 1.5rem !important;
    }

    .srv-comparison-box h3 {
        font-size: 1.05rem !important;
    }

    .srv-comparison-box > div:first-child > div:last-child {
        font-size: 0.74rem !important;
    }

    .table-wrapper {
        border-radius: 10px !important;
        max-width: 100% !important;
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch !important;
    }

    .srv-comparison-table th, .srv-comparison-table td {
        padding: 0.6rem 0.65rem !important;
        font-size: 0.76rem !important;
    }

    .srv-tables-split {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
        margin-bottom: 1.5rem !important;
    }

    .card-box {
        border-radius: 12px !important;
    }

    .card-box-header {
        padding: 0.75rem 0.85rem !important;
    }

    .card-box-title {
        font-size: 0.85rem !important;
    }

    .data-table th, .data-table td {
        padding: 0.6rem 0.65rem !important;
        font-size: 0.74rem !important;
    }

    /* Modal System on Small Mobile */
    .srv-modal-overlay {
        padding: 6px !important;
    }

    .srv-modal-dialog {
        width: calc(100vw - 12px) !important;
        max-width: 100% !important;
        max-height: calc(100vh - 16px) !important;
        border-radius: 14px !important;
        margin: 0 auto !important;
    }

    .modal-header {
        padding: 0.75rem 0.85rem !important;
    }

    .modal-title {
        font-size: 1rem !important;
    }

    .modal-header div > div {
        font-size: 0.72rem !important;
    }

    .modal-body {
        padding: 0.85rem 0.75rem !important;
    }

    .srv-modal-price-banner,
    .modal-body div[style*="display:flex; justify-content:space-between"] {
        padding: 0.65rem 0.75rem !important;
        border-radius: 8px !important;
        margin-bottom: 0.85rem !important;
    }

    #modalPlanAmountDisplay, #smsModalPriceDisplay {
        font-size: 1.3rem !important;
    }

    .srv-channel-selector {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.4rem !important;
        margin-bottom: 0.85rem !important;
    }

    .srv-channel-btn {
        padding: 0.5rem 0.35rem !important;
        font-size: 0.74rem !important;
        border-radius: 8px !important;
    }

    .srv-channel-btn i {
        font-size: 1rem !important;
    }

    .srv-pay-instruction {
        padding: 0.75rem 0.7rem !important;
        font-size: 0.75rem !important;
        line-height: 1.5 !important;
        margin-bottom: 0.85rem !important;
    }

    .srv-copy-btn {
        padding: 0.15rem 0.4rem !important;
        font-size: 0.7rem !important;
    }

    .srv-modal-grid-2,
    .modal-body div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
        gap: 0.65rem !important;
    }

    .form-group {
        margin-bottom: 0.65rem !important;
    }

    .form-label {
        font-size: 0.76rem !important;
        margin-bottom: 0.3rem !important;
    }

    .form-input, .form-select, .form-textarea {
        font-size: 0.8rem !important;
        padding: 0.5rem 0.65rem !important;
        border-radius: 8px !important;
    }

    .srv-char-counter {
        flex-direction: column !important;
        gap: 0.2rem !important;
        font-size: 0.7rem !important;
    }

    .modal-footer {
        padding: 0.65rem 0.75rem !important;
        flex-direction: column-reverse !important;
        align-items: stretch !important;
        gap: 0.4rem !important;
    }

    .modal-footer button {
        width: 100% !important;
        font-size: 0.8rem !important;
        padding: 0.65rem !important;
        justify-content: center !important;
    }

    /* Toast Notification */
    .srv-toast {
        bottom: calc(var(--bottom-nav-height) + 8px) !important;
        right: 8px !important;
        left: 8px !important;
        max-width: calc(100vw - 16px) !important;
        padding: 0.65rem 0.85rem !important;
        font-size: 0.78rem !important;
    }
}

/* Ultra Small Viewports (e.g. 320px - 360px) */
@media (max-width: 360px) {
    .mobile_header_left .brand-name {
        font-size: 0.76rem !important;
    }

    .header-icon-btn {
        width: 30px !important;
        height: 30px !important;
    }

    .header-icon-btn i {
        font-size: 13px !important;
    }

    .srv-hero-title {
        font-size: 1.05rem !important;
    }

    .srv-plan-price-main {
        font-size: 1.35rem !important;
    }

    .srv-countdown-box {
        font-size: 0.7rem !important;
    }

    .srv-countdown-unit {
        padding: 0.15rem 0.3rem !important;
        font-size: 0.7rem !important;
    }
}