/* ===================================================
   SCHOOLDESK – Premium SaaS Design System
   =================================================== */

:root {
    --sd-primary: #2563EB;
    --sd-primary-dark: #1d4ed8;
    --sd-primary-light: #dbeafe;
    --sd-secondary: #0F172A;
    --sd-accent: #22C55E;
    --sd-accent-dark: #16a34a;
    --sd-warning: #F59E0B;
    --sd-danger: #EF4444;
    --sd-purple: #8B5CF6;
    --sd-pink: #EC4899;
    --sd-cyan: #06B6D4;
    --sd-orange: #F97316;
    --sd-bg: #F8FAFC;
    --sd-bg-dark: #0F172A;
    --sd-glass: rgba(255, 255, 255, 0.08);
    --sd-glass-border: rgba(255, 255, 255, 0.15);
    --sd-shadow: 0 4px 24px rgba(37, 99, 235, 0.12);
    --sd-shadow-lg: 0 16px 64px rgba(37, 99, 235, 0.18);
    --sd-radius: 16px;
    --sd-radius-lg: 24px;
    --sd-radius-xl: 32px;
    --sd-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --sd-font: 'Inter', 'Plus Jakarta Sans', sans-serif;
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    max-width: 100%;
}

body {
    font-family: var(--sd-font);
    background: var(--sd-bg);
    color: var(--sd-secondary);
    overflow-x: hidden;
    max-width: 100%;
    -webkit-font-smoothing: antialiased;
}

/* ===== TYPOGRAPHY ===== */
.fw-500 { font-weight: 500; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fw-800 { font-weight: 800; }
.fw-900 { font-weight: 900; }

.text-gradient {
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-green {
    background: linear-gradient(135deg, var(--sd-accent), var(--sd-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-purple {
    background: linear-gradient(135deg, var(--sd-purple), var(--sd-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== NAVBAR ===== */
.sd-navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(37, 99, 235, 0.08);
    transition: var(--sd-transition);
    padding: 12px 0;
    z-index: 1040;
}

.sd-navbar.scrolled {
    box-shadow: 0 4px 32px rgba(15, 23, 42, 0.1);
    padding: 8px 0;
}

.sd-logo-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-cyan));
    border-radius: 10px;
    color: white;
    font-size: 16px;
    margin-right: 8px;
    vertical-align: middle;
}

.sd-logo-text {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--sd-secondary);
    vertical-align: middle;
    letter-spacing: -0.5px;
}

.sd-navbar .nav-link {
    color: var(--sd-secondary) !important;
    font-size: 0.9rem;
    padding: 8px 14px !important;
    border-radius: 8px;
    transition: var(--sd-transition);
}

.sd-navbar .nav-link:hover,
.sd-navbar .nav-link.active {
    color: var(--sd-primary) !important;
    background: var(--sd-primary-light);
}

/* Mega Menu */
.sd-mega-menu {
    min-width: 820px;
    border: 1px solid rgba(37, 99, 235, 0.1);
    border-radius: var(--sd-radius);
    box-shadow: var(--sd-shadow-lg);
    left: -300px;
}

.sd-menu-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: #94a3b8;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 8px;
    margin-top: 0;
}

.sd-mega-menu .dropdown-item {
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 0.88rem;
    color: var(--sd-secondary);
    transition: var(--sd-transition);
}

.sd-mega-menu .dropdown-item:hover {
    background: var(--sd-primary-light);
    color: var(--sd-primary);
}

.sd-menu-promo {
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-purple));
    border-radius: var(--sd-radius);
    padding: 20px;
    height: 100%;
}

.sd-menu-promo-badge {
    display: inline-block;
    background: rgba(255,255,255,0.2);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Buttons */
.sd-btn-glow {
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
    transition: var(--sd-transition);
}

.sd-btn-glow:hover {
    box-shadow: 0 8px 32px rgba(37, 99, 235, 0.5);
    transform: translateY(-2px);
}

/* ===== HERO SECTION ===== */
.sd-hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #0F172A 0%, #1e293b 40%, #0F172A 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.sd-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 70%;
    height: 140%;
    background: radial-gradient(ellipse, rgba(37, 99, 235, 0.2) 0%, transparent 70%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

.sd-hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -10%;
    width: 50%;
    height: 80%;
    background: radial-gradient(ellipse, rgba(34, 197, 94, 0.12) 0%, transparent 70%);
    animation: heroGlow2 6s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(5%, 3%) scale(1.1); }
}

@keyframes heroGlow2 {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-5%, -3%) scale(1.15); }
}

.sd-hero-content { position: relative; z-index: 2; }

.sd-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.3);
    color: #93C5FD;
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.sd-hero-badge .pulse-dot {
    width: 8px;
    height: 8px;
    background: var(--sd-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.7; }
}

.sd-hero h1 {
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    font-weight: 900;
    line-height: 1.12;
    color: white;
    letter-spacing: -1.5px;
    margin-bottom: 20px;
}

.sd-hero p.lead {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.65);
    line-height: 1.7;
    max-width: 560px;
    margin-bottom: 40px;
}

.sd-hero-ctas { display: flex; flex-direction: column; gap: 0; margin-bottom: 36px; }

.sd-hero-stats {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
}

.sd-hero-stat-item { text-align: left; }
.sd-hero-stat-num {
    font-size: 2rem;
    font-weight: 900;
    color: white;
    line-height: 1;
    letter-spacing: -0.5px;
}
.sd-hero-stat-label { font-size: 0.8rem; color: rgba(255,255,255,0.5); }

/* Hero Dashboard Mockup */
.sd-dashboard-mockup {
    position: relative;
    z-index: 2;
    overflow: visible;
}

.sd-hero .container { overflow: visible; }
.sd-hero { overflow: hidden; }

.sd-dashboard-card {
    background: rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--sd-radius-lg);
    padding: 24px;
    color: white;
    box-shadow: 0 24px 80px rgba(0,0,0,0.4);
    animation: floatCard 6s ease-in-out infinite;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

.sd-mini-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 14px;
    padding: 14px 18px;
    color: white;
    white-space: nowrap;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

/* mini-card-1: TODAY'S ATTENDANCE – top-left overlapping dashboard */
.sd-mini-card-1 {
    top: -14px;
    left: -10px;
    animation: floatMini1 5s ease-in-out infinite;
}

/* mini-card-2: AI INSIGHT – bottom-right of dashboard */
.sd-mini-card-2 {
    bottom: 18%;
    right: -8px;
    animation: floatMini2 7s ease-in-out infinite;
}

/* mini-card-3: NOTIFICATIONS – bottom-left */
.sd-mini-card-3 {
    bottom: 8%;
    left: -10px;
    animation: floatMini3 6s ease-in-out infinite;
}

@keyframes floatMini1 { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(-8px, 10px); } }
@keyframes floatMini2 { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(8px, -8px); } }
@keyframes floatMini3 { 0%, 100% { transform: translate(0, 0); } 50% { transform: translate(-6px, 8px); } }

/* Dashboard mockup visuals */
.sd-db-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sd-db-stat {
    background: rgba(255,255,255,0.06);
    border-radius: 12px;
    padding: 14px;
    text-align: center;
}

.sd-db-stat-num {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
}

.sd-db-stat-label {
    font-size: 0.72rem;
    color: rgba(255,255,255,0.5);
}

.sd-progress-bar-custom {
    height: 6px;
    border-radius: 4px;
    background: rgba(255,255,255,0.1);
    overflow: hidden;
}

.sd-progress-fill {
    height: 100%;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--sd-primary), var(--sd-cyan));
}

/* ===== SECTION STYLES ===== */
.sd-section {
    padding: 100px 0;
}

.sd-section-sm { padding: 60px 0; }
.sd-section-dark { background: var(--sd-secondary); }
.sd-section-gradient {
    background: linear-gradient(135deg, #F0F4FF 0%, #F8FAFC 50%, #F0FFF4 100%);
}

.sd-section-label {
    display: inline-block;
    background: var(--sd-primary-light);
    color: var(--sd-primary);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.sd-section-label.green {
    background: #dcfce7;
    color: var(--sd-accent-dark);
}

.sd-section-label.purple {
    background: #ede9fe;
    color: var(--sd-purple);
}

.sd-section-label.orange {
    background: #fff7ed;
    color: var(--sd-orange);
}

.sd-section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    color: var(--sd-secondary);
    letter-spacing: -1px;
    line-height: 1.2;
    margin-bottom: 16px;
}

.sd-section-title.light { color: white; }

.sd-section-sub {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== GLASS CARDS ===== */
.sd-glass-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.8);
    border-radius: var(--sd-radius);
    box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    transition: var(--sd-transition);
}

.sd-glass-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sd-shadow-lg);
    border-color: rgba(37, 99, 235, 0.2);
}

.sd-glass-card-dark {
    background: var(--sd-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--sd-glass-border);
    border-radius: var(--sd-radius);
    transition: var(--sd-transition);
}

.sd-glass-card-dark:hover {
    border-color: rgba(37, 99, 235, 0.4);
    background: rgba(255, 255, 255, 0.12);
}

/* ===== TRUSTED BY SECTION ===== */
.sd-trusted-section {
    background: white;
    padding: 40px 0;
    border-top: 1px solid #f1f5f9;
    border-bottom: 1px solid #f1f5f9;
}

.sd-trusted-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: #94a3b8;
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.sd-school-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    color: #475569;
    font-weight: 700;
    font-size: 0.9rem;
    transition: var(--sd-transition);
}

.sd-school-logo:hover {
    border-color: var(--sd-primary);
    color: var(--sd-primary);
    background: var(--sd-primary-light);
}

/* ===== MODULE CARDS ===== */
.sd-module-card {
    background: white;
    border-radius: var(--sd-radius);
    padding: 28px 24px;
    border: 1px solid #e2e8f0;
    transition: var(--sd-transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.sd-module-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--sd-primary), var(--sd-cyan));
    transform: scaleX(0);
    transition: var(--sd-transition);
}

.sd-module-card:hover::before { transform: scaleX(1); }

.sd-module-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sd-shadow-lg);
    border-color: rgba(37, 99, 235, 0.2);
}

.sd-module-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 16px;
}

/* ===== PORTAL TABS ===== */
.sd-portal-nav { border: none; gap: 8px; }
.sd-portal-nav .nav-link {
    border-radius: 12px !important;
    border: 2px solid #e2e8f0 !important;
    color: #475569;
    font-weight: 600;
    padding: 12px 24px;
    transition: var(--sd-transition);
    background: white;
}
.sd-portal-nav .nav-link.active {
    background: var(--sd-primary) !important;
    border-color: var(--sd-primary) !important;
    color: white !important;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
}
.sd-portal-nav .nav-link:hover:not(.active) {
    border-color: var(--sd-primary) !important;
    color: var(--sd-primary);
}

/* ===== FEATURE LIST ===== */
.sd-feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 16px;
}

.sd-feature-check {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--sd-accent), var(--sd-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.7rem;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ===== AI FEATURES SECTION ===== */
.sd-ai-section {
    background: linear-gradient(135deg, #0F172A 0%, #1e1b4b 50%, #0F172A 100%);
    position: relative;
    overflow: hidden;
}

.sd-ai-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: radial-gradient(circle at 20% 50%, rgba(37, 99, 235, 0.15) 0%, transparent 50%),
                      radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.15) 0%, transparent 50%);
}

.sd-ai-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.2), rgba(37, 99, 235, 0.2));
    border: 1px solid rgba(139, 92, 246, 0.4);
    color: #c4b5fd;
    padding: 8px 18px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
}

.sd-ai-feature-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--sd-radius);
    padding: 24px;
    transition: var(--sd-transition);
    position: relative;
    z-index: 1;
}

.sd-ai-feature-card:hover {
    background: rgba(255,255,255,0.08);
    border-color: rgba(139, 92, 246, 0.4);
    transform: translateY(-4px);
}

/* ===== PRICING SECTION ===== */
.sd-pricing-card {
    background: white;
    border-radius: var(--sd-radius-lg);
    border: 2px solid #e2e8f0;
    padding: 40px 32px;
    transition: var(--sd-transition);
    position: relative;
    overflow: hidden;
}

.sd-pricing-card.featured {
    border-color: var(--sd-primary);
    transform: scale(1.05);
    box-shadow: var(--sd-shadow-lg);
}

.sd-pricing-card.featured::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--sd-primary), var(--sd-cyan));
}

.sd-popular-badge {
    position: absolute;
    top: -1px;
    right: 24px;
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-cyan));
    color: white;
    padding: 6px 16px;
    border-radius: 0 0 12px 12px;
    font-size: 0.75rem;
    font-weight: 700;
}

.sd-price {
    font-size: 3rem;
    font-weight: 900;
    color: var(--sd-secondary);
    line-height: 1;
}

.sd-price-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.9rem;
    color: #475569;
    border-bottom: 1px solid #f1f5f9;
}

.sd-price-feature:last-child { border-bottom: none; }

.sd-price-feature i.fa-check { color: var(--sd-accent); }
.sd-price-feature i.fa-times { color: #cbd5e1; }

/* ===== ROADMAP SECTION ===== */
.sd-roadmap-section {
    background: linear-gradient(180deg, #F8FAFC 0%, white 100%);
}

.sd-roadmap-timeline {
    position: relative;
}

.sd-roadmap-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--sd-primary), var(--sd-cyan), var(--sd-accent));
    transform: translateX(-50%);
}

@media (max-width: 768px) {
    .sd-roadmap-timeline::before {
        left: 20px;
    }
}

.sd-roadmap-quarter {
    margin-bottom: 60px;
}

.sd-quarter-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-cyan));
    color: white;
    padding: 10px 24px;
    border-radius: 50px;
    font-weight: 800;
    font-size: 1rem;
    margin-bottom: 32px;
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.35);
}

.sd-roadmap-item {
    background: white;
    border-radius: var(--sd-radius);
    padding: 24px;
    border: 1px solid #e2e8f0;
    transition: var(--sd-transition);
    position: relative;
}

.sd-roadmap-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--sd-shadow);
    border-color: rgba(37, 99, 235, 0.2);
}

.sd-coming-soon-badge {
    display: inline-block;
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sd-in-progress-badge {
    display: inline-block;
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #1d4ed8;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 700;
}

.sd-launched-badge {
    display: inline-block;
    background: linear-gradient(135deg, #dcfce7, #bbf7d0);
    color: #166534;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.72px;
    font-weight: 700;
}

/* ===== TESTIMONIALS ===== */
.sd-testimonial-card {
    background: white;
    border-radius: var(--sd-radius-lg);
    padding: 36px 32px;
    border: 1px solid #e2e8f0;
    transition: var(--sd-transition);
    height: 100%;
}

.sd-testimonial-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--sd-shadow-lg);
}

.sd-stars { color: #F59E0B; }

.sd-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* ===== MOBILE APP MOCKUP ===== */
.sd-phone-mockup {
    width: 200px;
    height: 400px;
    background: linear-gradient(135deg, #1e293b, #0f172a);
    border-radius: 32px;
    border: 6px solid #334155;
    position: relative;
    overflow: hidden;
    box-shadow: 0 32px 80px rgba(0,0,0,0.5);
    margin: 0 auto;
}

.sd-phone-notch {
    width: 80px;
    height: 22px;
    background: #334155;
    border-radius: 0 0 16px 16px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.sd-phone-screen {
    background: white;
    height: calc(100% - 30px);
    border-radius: 26px;
    overflow: hidden;
    margin: 4px;
}

.sd-phone-header {
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-cyan));
    color: white;
    padding: 12px 14px;
    font-size: 0.7rem;
}

.sd-phone-content { padding: 10px 12px; }

.sd-phone-stat {
    background: #f8fafc;
    border-radius: 8px;
    padding: 8px 10px;
    margin-bottom: 6px;
    font-size: 0.65rem;
}

/* ===== INTEGRATION LOGOS ===== */
.sd-integration-chip {
    display: flex;
    align-items: center;
    gap: 8px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 50px;
    padding: 10px 20px;
    font-size: 0.85rem;
    font-weight: 600;
    color: #475569;
    transition: var(--sd-transition);
    white-space: nowrap;
}

.sd-integration-chip:hover {
    border-color: var(--sd-primary);
    color: var(--sd-primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.15);
}

/* ===== STATS COUNTER ===== */
.sd-stat-card {
    text-align: center;
    padding: 32px 20px;
}

.sd-stat-num {
    font-size: 2rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.sd-stat-label { font-size: 0.9rem; color: #64748b; font-weight: 500; }

/* ===== CTA SECTION ===== */
.sd-cta-section {
    background: linear-gradient(135deg, var(--sd-primary) 0%, #1d4ed8 50%, var(--sd-purple) 100%);
    position: relative;
    overflow: hidden;
}

.sd-cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 60%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(255,255,255,0.08) 0%, transparent 70%);
}

/* ===== FOOTER ===== */
.sd-footer {
    background: #0A0F1E;
}

.sd-footer-top { padding: 80px 0 60px; }
.sd-footer-bottom {
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.sd-footer-heading {
    color: white;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.sd-footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sd-footer-links li { margin-bottom: 10px; }

.sd-footer-links a {
    color: rgba(255,255,255,0.5);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--sd-transition);
}

.sd-footer-links a:hover {
    color: var(--sd-primary);
    padding-left: 4px;
}

.sd-social-link {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    text-decoration: none;
    transition: var(--sd-transition);
    font-size: 0.9rem;
}

.sd-social-link:hover {
    background: var(--sd-primary);
    color: white;
    transform: translateY(-3px);
}

.sd-newsletter-form .form-control::placeholder { color: rgba(255,255,255,0.3); }

/* ===== WHATSAPP FLOAT ===== */
.sd-whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 1045;
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    gap: 12px;
}

.sd-whatsapp-btn {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #25D366, #16a34a);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.9rem;
    text-decoration: none;
    box-shadow: 0 12px 38px rgba(37, 211, 102, 0.45);
    transition: var(--sd-transition);
    position: relative;
    isolation: isolate;
    animation: whatsappFloat 3.4s ease-in-out infinite;
}

.sd-whatsapp-btn:hover {
    animation-play-state: paused;
    transform: translateY(-3px) scale(1.08);
    color: white;
}

@keyframes whatsappFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-7px); }
}

.sd-whatsapp-pulse {
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: rgba(37, 211, 102, 0.4);
    animation: whatsappPulse 2s ease-out infinite;
}

@keyframes whatsappPulse {
    0% { transform: scale(1); opacity: 1; }
    100% { transform: scale(2.2); opacity: 0; }
}

.sd-whatsapp-tooltip {
    background: rgba(255, 255, 255, 0.96);
    backdrop-filter: blur(14px);
    padding: 12px 18px;
    border-radius: 18px;
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: 0 18px 48px rgba(15, 23, 42, 0.16);
    font-size: 0.86rem;
    line-height: 1.45;
    width: 190px;
    opacity: 1;
    transform: translateX(0);
    transition: var(--sd-transition);
    pointer-events: none;
    animation: whatsappMessageIn 0.7s ease both, whatsappMessageNudge 4s ease-in-out 1s infinite;
    position: relative;
    opacity: 0;
    visibility: hidden;
    transition: .3s linear;
}

.sd-whatsapp-tooltip::after {
    content: '';
    position: absolute;
    top: 50%;
    right: -8px;
    width: 16px;
    height: 16px;
    background: rgba(255, 255, 255, 0.96);
    border-right: 1px solid rgba(226, 232, 240, 0.9);
    border-bottom: 1px solid rgba(226, 232, 240, 0.9);
    transform: translateY(-50%) rotate(-45deg);
}

.sd-whatsapp-tooltip strong {
    color: #0f172a;
    font-size: 0.95rem;
}

.sd-whatsapp-tooltip small {
    color: #475569;
    font-weight: 500;
}

.sd-whatsapp-float:hover .sd-whatsapp-tooltip {
    transform: translateX(-4px);
}

@keyframes whatsappMessageIn {
    0% { opacity: 0; transform: translateX(18px) scale(0.94); }
    100% { opacity: 1; transform: translateX(0) scale(1); }
}

@keyframes whatsappMessageNudge {
    0%, 100% { transform: translateX(0); }
    50% { transform: translateX(-6px); }
}

.sd-whatsapp-float:hover .sd-whatsapp-tooltip{visibility: visible; opacity: 1;}

/* ===== EXIT POPUP ===== */
.sd-exit-popup-content {
    border-radius: var(--sd-radius-xl);
    overflow: hidden;
}

.sd-exit-popup-left {
    background: linear-gradient(135deg, var(--sd-primary), var(--sd-purple));
    align-items: center;
}

.sd-popup-icon {
    font-size: 3rem;
    color: rgba(255,255,255,0.8);
}

.sd-popup-stats {
    display: flex;
    gap: 20px;
    justify-content: center;
}

.sd-popup-stat { text-align: center; }

/* ===== FORMS ===== */
.sd-form-control {
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 14px 16px;
    font-size: 0.95rem;
    transition: var(--sd-transition);
}

.sd-form-control:focus {
    border-color: var(--sd-primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
    outline: none;
}

/* ===== MISC UTILITIES ===== */
.sd-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, #e2e8f0, transparent);
    margin: 0;
}

.sd-badge-new {
    background: linear-gradient(135deg, var(--sd-accent), var(--sd-cyan));
    color: white;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
}

.sd-badge-soon {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
}

/* ===== PAGE HERO ===== */
.sd-page-hero {
    background: linear-gradient(135deg, var(--sd-secondary) 0%, #1e293b 100%);
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
}

.sd-page-hero::before {
    content: '';
    position: absolute;
    top: -30%;
    left: -10%;
    width: 50%;
    height: 150%;
    background: radial-gradient(ellipse, rgba(37, 99, 235, 0.15) 0%, transparent 70%);
}

/* ===== SWIPER CUSTOM ===== */
.swiper-pagination-bullet { background: var(--sd-primary); }
.swiper-pagination-bullet-active { width: 24px; border-radius: 4px; }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: var(--sd-primary); border-radius: 3px; }

/* ===== ANIMATIONS ===== */
.sd-fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.sd-fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    .sd-mega-menu { min-width: 320px; left: 0; }
    .sd-pricing-card.featured { transform: scale(1); }
    .sd-roadmap-timeline::before { display: none; }
    .sd-mini-card-1, .sd-mini-card-2, .sd-mini-card-3 { display: none; }
}

@media (max-width: 768px) {
    .sd-section { padding: 60px 0; }
    .sd-hero { min-height: auto; padding: 100px 0 50px; overflow: hidden; }
    .sd-hero-ctas { flex-direction: column; align-items: flex-start; }
    .sd-hero-stats { gap: 16px; flex-wrap: wrap; }
    .sd-hero-stat-num { font-size: 1.5rem; }
    .sd-whatsapp-float { bottom: 16px; right: 16px; }
    .sd-whatsapp-btn { width: 58px; height: 58px; font-size: 1.7rem; }
    .sd-whatsapp-tooltip { width: 168px; padding: 10px 14px; font-size: 0.78rem; }

    /* Hide dashboard mockup on very small screens to prevent horizontal overflow */
    .sd-dashboard-mockup { display: none !important; }

    /* Ensure hero takes full width */
    .sd-hero .col-lg-6 { width: 100%; max-width: 100%; }

    /* Prevent any element from causing horizontal scroll */
    .container, .container-fluid { overflow: hidden; }

    /* Drawer: ensure full-width items, no clipping */
    .sd-mobile-drawer { width: 100vw; max-width: 300px; }

    /* Section titles smaller */
    .sd-section-title { font-size: 1.75rem; }
    .sd-hero h1 { font-size: 2rem; letter-spacing: -1px; }
    .sd-hero p.lead { font-size: 1rem; }

    /* Stat section grid 2-col */
    .sd-stat-card { padding: 20px 10px; }

    /* Pricing cards full width */
    .sd-pricing-card { margin-bottom: 16px; }
}

/* ===== MOBILE DRAWER ===== */
.sd-hamburger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 6px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1100;
    position: relative;
}
.sd-ham-line {
    display: block;
    width: 24px;
    height: 3px;
    background: var(--sd-dark);
    border-radius: 12px;
    transition: transform 0.35s cubic-bezier(.77,0,.18,1), opacity 0.2s ease, width 0.3s ease;
    transform-origin: center;
    background: gray;
}
.sd-hamburger.is-open .sd-ham-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.sd-hamburger.is-open .sd-ham-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.sd-hamburger.is-open .sd-ham-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Scrolled navbar: lines become white */
#mainNav.scrolled .sd-ham-line { background: white; background: gray; }

.sd-drawer-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 1199;
    backdrop-filter: blur(3px);
    animation: overlayFadeIn 0.25s ease;
}
.sd-drawer-overlay.active { display: block; }
@keyframes overlayFadeIn { from { opacity:0; } to { opacity:1; } }

.sd-mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    max-width: 85vw;
    height: 100vh;
    background: white;
    z-index: 1200;
    display: flex;
    flex-direction: column;
    box-shadow: 8px 0 40px rgba(0,0,0,0.18);
    transform: translateX(-100%);
    transition: transform 0.38s cubic-bezier(.77,0,.18,1);
    overflow: hidden;
}
.sd-mobile-drawer.is-open { transform: translateX(0); }

.sd-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid #f1f5f9;
    flex-shrink: 0;
}
.sd-drawer-close {
    width: 36px;
    height: 36px;
    border: none;
    background: #f1f5f9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--sd-dark);
    font-size: 0.9rem;
    transition: background 0.2s;
}
.sd-drawer-close:hover { background: #e2e8f0; }

.sd-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px 0;
}

.sd-drawer-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 24px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--sd-dark);
    background: none;
    border: none;
    text-decoration: none;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    border-bottom: 1px solid #f8fafc;
}
.sd-drawer-item:hover { background: #f8fafc; color: var(--sd-primary); }

.sd-drawer-chevron {
    font-size: 0.75rem;
    transition: transform 0.3s ease;
    color: #94a3b8;
}
.sd-drawer-toggle.open .sd-drawer-chevron { transform: rotate(180deg); }

.sd-drawer-sub {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.38s cubic-bezier(.77,0,.18,1);
    background: #f8fafc;
}
.sd-drawer-sub.open { max-height: 600px; }
.sd-drawer-sub a {
    display: flex;
    align-items: center;
    padding: 11px 32px;
    font-size: 0.875rem;
    font-weight: 500;
    color: #475569;
    text-decoration: none;
    transition: color 0.2s, background 0.2s;
    border-bottom: 1px solid #f1f5f9;
}
.sd-drawer-sub a:hover { color: var(--sd-primary); background: #eff6ff; }

.sd-drawer-group { border-bottom: 1px solid #f1f5f9; }
.sd-drawer-group > .sd-drawer-item { border-bottom: none; }

.sd-drawer-footer {
    padding: 20px;
    border-top: 1px solid #f1f5f9;
    flex-shrink: 0;
}

/* ===== DARK MODE ===== */
[data-bs-theme="dark"] body { background: #0A0F1E; color: #e2e8f0; }
[data-bs-theme="dark"] .sd-glass-card {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(255,255,255,0.08);
    color: #e2e8f0;
}
[data-bs-theme="dark"] .sd-glass-card:hover {
    border-color: rgba(37,99,235,0.4);
}
[data-bs-theme="dark"] .sd-testimonial-card,
[data-bs-theme="dark"] .sd-module-card,
[data-bs-theme="dark"] .sd-pricing-card {
    background: #1e293b;
    border-color: rgba(255,255,255,0.08);
    color: #e2e8f0;
}
[data-bs-theme="dark"] .text-muted { color: #94a3b8 !important; }
[data-bs-theme="dark"] .sd-navbar {
    background: rgba(15,23,42,0.95);
    border-bottom-color: rgba(255,255,255,0.08);
}
[data-bs-theme="dark"] .sd-navbar .nav-link { color: #e2e8f0 !important; }
[data-bs-theme="dark"] .sd-section-gradient { background: linear-gradient(135deg, #0f172a, #1e293b); }
[data-bs-theme="dark"] .sd-school-logo { background: #1e293b; border-color: rgba(255,255,255,0.08); color: #e2e8f0; }

/* ===== FIX: sd-launched-badge font-size typo ===== */
.sd-launched-badge { font-size: 0.72rem; }

/* ===== HOVER UTILITY ===== */
.hover-primary:hover { color: var(--sd-primary) !important; }

/* ===== ROUNDED INPUT GROUP ===== */
.rounded-pill-start { border-radius: 50px 0 0 50px !important; }
.rounded-pill-end  { border-radius: 0 50px 50px 0 !important; }

/* ===== ROADMAP FILTER BUTTONS ===== */
.sd-roadmap-filter { transition: var(--sd-transition); }
.sd-roadmap-filter.active {
    background: white !important;
    color: var(--sd-primary) !important;
    border-color: white !important;
}

/* ===== CASE STUDY CARD ===== */
.sd-glass-card .sd-avatar { flex-shrink: 0; }

/* ===== BLOG CARD HOVER ===== */
a:hover .sd-glass-card { border-color: rgba(37,99,235,0.3); }

/* ===== SUPPORT PAGE INPUT GROUP ===== */
.input-group .form-control { border-right: none; }
.input-group .btn { border-radius: 0 50px 50px 0 !important; }

/* ===== 2026 MODERN UI POLISH ===== */
body {
    background:
        radial-gradient(circle at 8% 6%, rgba(37, 99, 235, 0.08), transparent 28rem),
        radial-gradient(circle at 92% 18%, rgba(6, 182, 212, 0.08), transparent 24rem),
        linear-gradient(180deg, #f8fbff 0%, #ffffff 42%, #f8fafc 100%);
}

main {
    position: relative;
    isolation: isolate;
}

.sd-navbar {
    width: min(100% - 24px, 1180px);
    left: 50%;
    transform: translateX(-50%);
    top: 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(226, 232, 240, 0.92);
    box-shadow: 0 18px 55px rgba(15, 23, 42, 0.08);
    padding: 10px 0;
}

.sd-navbar.scrolled {
    top: 8px;
    padding: 7px 0;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 22px 60px rgba(15, 23, 42, 0.12);
}

.sd-logo-icon {
    border-radius: 14px;
    box-shadow: 0 12px 26px rgba(37, 99, 235, 0.24);
}

.sd-navbar .nav-link {
    border-radius: 999px;
    font-weight: 700;
}

.dropdown-menu {
    border: 1px solid rgba(226, 232, 240, 0.95);
    border-radius: 20px;
    box-shadow: 0 26px 80px rgba(15, 23, 42, 0.14);
}

.dropdown-item {
    border-radius: 12px;
}

.btn-primary,
.sd-btn-glow {
    background: linear-gradient(135deg, #2563eb, #06b6d4) !important;
    border: 0 !important;
    box-shadow: 0 16px 34px rgba(37, 99, 235, 0.24);
}

.btn-primary:hover,
.sd-btn-glow:hover {
    transform: translateY(-2px);
    box-shadow: 0 22px 44px rgba(37, 99, 235, 0.32);
}

.btn-outline-primary {
    border-color: rgba(37, 99, 235, 0.28);
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(10px);
    font-weight: 700;
}

.btn-outline-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.14);
}

.sd-hero {
    background:
        radial-gradient(circle at 18% 18%, rgba(59, 130, 246, 0.36), transparent 28rem),
        radial-gradient(circle at 82% 14%, rgba(6, 182, 212, 0.24), transparent 26rem),
        radial-gradient(circle at 70% 78%, rgba(34, 197, 94, 0.12), transparent 24rem),
        linear-gradient(135deg, #020617 0%, #0f172a 46%, #111827 100%);
}

.sd-hero-title,
.sd-hero h1,
.display-1,
.display-2,
.display-3,
.display-4 {
    letter-spacing: -0.055em;
}

.sd-hero-badge {
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(255, 255, 255, 0.18);
    color: #dbeafe;
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.12);
}

.sd-glass-card,
.sd-module-card,
.sd-testimonial-card,
.sd-pricing-card,
.card:not(.login-card) {
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 26px;
    box-shadow: 0 18px 55px rgba(15, 23, 42, 0.07);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.sd-glass-card:hover,
.sd-module-card:hover,
.sd-testimonial-card:hover,
.sd-pricing-card:hover,
.card:not(.login-card):hover {
    transform: translateY(-6px);
    border-color: rgba(37, 99, 235, 0.22);
    box-shadow: 0 28px 78px rgba(37, 99, 235, 0.14);
}

.sd-section-gradient {
    background:
        radial-gradient(circle at 10% 12%, rgba(37, 99, 235, 0.08), transparent 22rem),
        linear-gradient(135deg, #ffffff, #f8fbff 48%, #eff6ff);
}

.form-control,
.form-select {
    border-radius: 16px;
    border-color: #dbe3ef;
    padding: 0.78rem 1rem;
}

.form-control:focus,
.form-select:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 0.24rem rgba(37, 99, 235, 0.12);
}

.sd-footer {
    position: relative;
    overflow: hidden;
    background: #020617;
}

.sd-footer::before {
    content: '';
    position: absolute;
    width: 520px;
    height: 520px;
    right: -180px;
    top: -220px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.24), transparent 65%);
    pointer-events: none;
}

.sd-footer::after {
    content: '';
    position: absolute;
    width: 420px;
    height: 420px;
    left: -160px;
    bottom: -220px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.16), transparent 68%);
    pointer-events: none;
}

.sd-footer-top,
.sd-footer-bottom {
    position: relative;
    z-index: 1;
}

.sd-social-link {
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.12);
}

.sd-mobile-drawer {
    border-radius: 0 28px 28px 0;
    box-shadow: 24px 0 80px rgba(15, 23, 42, 0.24);
}

.sd-drawer-header {
    background: linear-gradient(135deg, #ffffff, #eff6ff);
}

@media (max-width: 991.98px) {
    .sd-navbar {
        width: calc(100% - 18px);
        top: 8px;
        border-radius: 24px;
    }

    .sd-navbar .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .sd-hero {
        padding-top: 105px;
    }
}

@media (max-width: 575.98px) {
    .sd-navbar {
        width: calc(100% - 12px);
        top: 6px;
        border-radius: 20px;
    }

    .sd-logo-text {
        font-size: 1.15rem;
    }

    .sd-logo-icon {
        width: 34px;
        height: 34px;
    }

    .sd-glass-card,
    .sd-module-card,
    .sd-testimonial-card,
    .sd-pricing-card,
    .card:not(.login-card) {
        border-radius: 20px;
    }
}