/* ==========================================================================
   ROOT INFOSEC — Official Brand Design System
   Visual Identity: Premium Cybersecurity & Digital Forensics
   Color Palette: Pure Black (#000000), Graphite (#303030), Charcoal (#1C2734),
   Primary Cyber Blue (#0040A0), Electric Blue (#0060C0), Deep Navy (#002850),
   Soft White (#FEFEFE), Cool Light Gray (#F8FAFB), Muted Blue Gray (#567795)
   ========================================================================== */

:root {
    /* --- Pure Black & Dark Base Colors --- */
    --color-black: #000000;          /* Pure Black */
    --color-black-rich: #06090E;     /* Rich Obsidian Black */
    --color-black-surface: #0C1118;  /* Deep Black Surface */
    --color-graphite: #303030;       /* Graphite Black */
    --color-graphite-dark: #1E2732;  /* Dark Graphite */
    --color-charcoal: #1C2734;       /* Charcoal */
    --color-card-dark: #121A24;
    --color-card-graphite: #1A2430;

    /* --- Primary Cyber Blue Colors --- */
    --color-primary: #0040A0;        /* Primary Cyber Blue */
    --color-highlight: #0060C0;      /* Electric Blue / Highlight */
    --color-navy: #002850;           /* Deep Navy */
    --color-navy-dark: #001730;      /* Deep Midnight Navy */
    --color-navy-light: #00366c;
    --color-cyan-glow: #4DA2FF;

    /* --- Neutral & Light Colors --- */
    --color-white: #FEFEFE;          /* Soft White */
    --color-light-gray: #F8FAFB;     /* Cool Light Gray */
    --color-muted-blue: #567795;     /* Muted Blue Gray */
    --color-text-dim: #8EA6BC;
    --color-text-light: #CFDAE6;

    /* --- Borders & Illumination --- */
    --color-border-subtle: rgba(86, 119, 149, 0.22);
    --color-border-blue: rgba(0, 96, 192, 0.28);
    --color-border-glow: rgba(0, 96, 192, 0.6);
    --color-border-black: rgba(255, 255, 255, 0.08);

    /* --- Gradients --- */
    --gradient-brand: linear-gradient(135deg, #002850 0%, #0040A0 50%, #0060C0 100%);
    --gradient-blue-glow: linear-gradient(135deg, #0040A0, #0060C0);
    --gradient-hero: linear-gradient(180deg, #000000 0%, #040810 35%, #001730 75%, #002850 100%);
    --gradient-dark-card: linear-gradient(180deg, #16202C 0%, #0F1620 100%);
    --gradient-black-card: linear-gradient(180deg, #101721 0%, #080C12 100%);

    /* --- Radii & Shadows --- */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-pill: 9999px;

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.35);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.5);
    --shadow-dark: 0 14px 42px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 25px rgba(0, 96, 192, 0.28);
    --shadow-glow-strong: 0 0 35px rgba(0, 96, 192, 0.5);

    /* --- Fonts --- */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* --- Transitions --- */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-smooth: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   Reset & Base Styles
   ========================================================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-black-rich);
    color: var(--color-text-light);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

ul {
    list-style: none;
}

img, svg {
    display: block;
    max-width: 100%;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================================================
   Typography & Section Shared Headers
   ========================================================================== */
.section-header {
    text-align: center;
    margin-bottom: 56px;
    position: relative;
    z-index: 2;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-cyan-glow);
    background: rgba(0, 64, 160, 0.22);
    border: 1px solid rgba(0, 96, 192, 0.4);
    padding: 6px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
}

.section-tag.light-theme {
    color: var(--color-primary);
    background: rgba(0, 64, 160, 0.08);
    border-color: rgba(0, 64, 160, 0.2);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-white);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-title.light-theme {
    color: var(--color-charcoal);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-dim);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
}

.section-subtitle.light-theme {
    color: var(--color-muted-blue);
}

.gradient-text {
    background: linear-gradient(135deg, #0040A0 0%, #0060C0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-text-electric {
    background: linear-gradient(135deg, #5AB0FF 0%, #0060C0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================================================
   Buttons & Interactive CTA Components
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    padding: 13px 26px;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-smooth);
    white-space: nowrap;
    line-height: 1;
}

/* Primary Button */
.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
    box-shadow: 0 4px 16px rgba(0, 64, 160, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-primary:hover {
    background: var(--color-highlight);
    transform: translateY(-2px);
    box-shadow: 0 8px 26px rgba(0, 96, 192, 0.5);
    color: var(--color-white);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Secondary / Outline Button */
.btn-outline {
    background: rgba(0, 0, 0, 0.4);
    color: var(--color-white);
    border: 1.5px solid var(--color-highlight);
    backdrop-filter: blur(8px);
}

.btn-outline:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 64, 160, 0.35);
}

/* Course Card Action Button */
.btn-enroll {
    background: rgba(0, 64, 160, 0.2);
    color: var(--color-cyan-glow);
    padding: 10px 20px;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
    font-weight: 600;
    border: 1.5px solid rgba(0, 96, 192, 0.35);
    transition: all var(--transition-smooth);
}

.btn-enroll:hover {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 64, 160, 0.4);
}

/* WhatsApp Conversion Button */
.btn-whatsapp {
    background: #0040A0;
    color: #FEFEFE;
    font-size: 1.05rem;
    padding: 16px 36px;
    border-radius: var(--radius-md);
    border: 1px solid rgba(255, 255, 255, 0.18);
    box-shadow: 0 6px 24px rgba(0, 64, 160, 0.45);
}

.btn-whatsapp:hover {
    background: #0060C0;
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(0, 96, 192, 0.6);
    color: #FEFEFE;
}

/* ==========================================================================
   Header & Navigation (Pure Black Glassmorphism)
   ========================================================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 18px 0;
    transition: all var(--transition-smooth);
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 96, 192, 0.18);
}

.navbar.scrolled {
    background: rgba(0, 0, 0, 0.94);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 96, 192, 0.32);
    padding: 12px 0;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.6);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo & Vector Brand Identity */
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--color-white);
}

.logo-brand-icon {
    width: 36px;
    height: 36px;
    object-fit: contain;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 8px rgba(0, 150, 255, 0.45));
    transition: transform var(--transition-normal);
}

.logo:hover .logo-brand-icon {
    transform: scale(1.06);
}

.logo-text {
    font-size: 1.15rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    color: var(--color-white);
    display: flex;
    align-items: center;
    gap: 6px;
}

.logo-text .accent {
    color: var(--color-cyan-glow);
    font-weight: 700;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    font-size: 0.92rem;
    font-weight: 500;
    color: #CFDAE6;
    position: relative;
    padding: 6px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-highlight);
    box-shadow: 0 0 8px rgba(0, 96, 192, 0.8);
    border-radius: 2px;
    transition: width var(--transition-smooth);
}

.nav-links a:hover {
    color: var(--color-white);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-links a.active {
    color: var(--color-white);
    font-weight: 600;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.mobile-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-white);
    border-radius: 2px;
    transition: all var(--transition-base);
}

/* ==========================================================================
   Hero Section (Pure Black #000000 & Cybersecurity Intelligence)
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 90px;
    background: var(--gradient-hero);
    color: var(--color-white);
    overflow: hidden;
}

/* Binary Code & Matrix Overlay */
.hero-binary-bg {
    position: absolute;
    inset: 0;
    font-family: var(--font-mono);
    font-size: 11px;
    line-height: 18px;
    letter-spacing: 4px;
    color: rgba(0, 96, 192, 0.08);
    user-select: none;
    pointer-events: none;
    overflow: hidden;
    white-space: pre-wrap;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 20%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 20%, transparent 80%);
}

.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(0, 96, 192, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 96, 192, 0.08) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 100%);
}

.hero-circuit-lines {
    position: absolute;
    inset: 0;
    pointer-events: none;
    opacity: 0.25;
    background-image: radial-gradient(circle at 15% 30%, rgba(0, 96, 192, 0.18) 0%, transparent 40%),
                      radial-gradient(circle at 85% 70%, rgba(0, 64, 160, 0.22) 0%, transparent 45%);
}

.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    pointer-events: none;
}

.hero-glow-1 {
    width: 500px;
    height: 500px;
    background: #0040A0;
    top: -10%;
    right: -5%;
    opacity: 0.22;
}

.hero-glow-2 {
    width: 450px;
    height: 450px;
    background: #002850;
    bottom: 5%;
    left: -5%;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: #60B0FF;
    background: rgba(0, 0, 0, 0.65);
    border: 1px solid rgba(0, 96, 192, 0.45);
    padding: 8px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 28px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
    animation: fadeInDown 0.8s ease;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #0060C0;
    border-radius: 50%;
    box-shadow: 0 0 10px #0060C0;
    animation: pulseGlow 2s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 8px #0060C0; }
    50% { opacity: 0.6; transform: scale(1.3); box-shadow: 0 0 16px #4DA2FF; }
}

.hero-title {
    font-size: clamp(2.8rem, 6.5vw, 4.8rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    color: var(--color-white);
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.1s both;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2vw, 1.2rem);
    color: var(--color-text-light);
    max-width: 680px;
    margin: 0 auto 40px;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 64px;
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 860px;
    margin: 0 auto;
    padding-top: 40px;
    border-top: 1px solid rgba(86, 119, 149, 0.2);
    animation: fadeInUp 0.8s ease 0.4s both;
}

.stat-item {
    text-align: center;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 96, 192, 0.2);
    border-radius: var(--radius-md);
    padding: 16px 12px;
    backdrop-filter: blur(6px);
    transition: all var(--transition-base);
}

.stat-item:hover {
    border-color: var(--color-highlight);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 96, 192, 0.18);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--color-cyan-glow);
    font-family: var(--font-sans);
    line-height: 1.1;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-dim);
    margin-top: 6px;
    font-weight: 500;
    letter-spacing: 0.02em;
}

/* ==========================================================================
   Services Section (Cyber Solutions & Technical Intelligence)
   ========================================================================== */
.services-section {
    padding: 70px 0;
    background-color: var(--color-black-rich);
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(0, 96, 192, 0.18);
}

.services-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 96, 192, 0.1) 0%, rgba(0, 0, 0, 0) 70%);
    top: 20%;
    left: 50%;
    transform: translateX(-50%);
    pointer-events: none;
    z-index: 1;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    max-width: 1060px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

/* Service Card (Cyber Obsidian Dark Aesthetic - Compact) */
.service-card {
    background: linear-gradient(145deg, #0c1420 0%, #070a10 100%);
    border: 1px solid rgba(86, 119, 149, 0.2);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 10px;
    transition: all var(--transition-smooth);
    position: relative;
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(77, 162, 255, 0.6), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover {
    border-color: rgba(77, 162, 255, 0.5);
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45), 0 0 16px rgba(0, 96, 192, 0.2);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.service-number {
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--color-cyan-glow);
    letter-spacing: 0.08em;
}

.service-tech-icon {
    width: 32px;
    height: 32px;
    border-radius: 7px;
    background: rgba(0, 64, 160, 0.16);
    border: 1px solid rgba(0, 96, 192, 0.28);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-cyan-glow);
    transition: all var(--transition-base);
}

.service-card:hover .service-tech-icon {
    background: rgba(0, 96, 192, 0.32);
    border-color: var(--color-cyan-glow);
    transform: scale(1.05);
    color: #ffffff;
    box-shadow: 0 0 10px rgba(77, 162, 255, 0.3);
}

.service-card-body {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.service-title {
    font-size: 1.02rem;
    font-weight: 750;
    color: var(--color-white);
    letter-spacing: 0.025em;
    line-height: 1.3;
    text-transform: uppercase;
    font-family: var(--font-sans);
}

.service-desc {
    font-size: 0.82rem;
    color: #9eb2c6;
    line-height: 1.45;
    margin: 0;
}

.service-card-footer {
    padding-top: 10px;
    border-top: 1px solid rgba(86, 119, 149, 0.12);
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.btn-service-enquiry {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    width: auto;
    padding: 6px 13px;
    background: rgba(0, 64, 160, 0.2);
    border: 1px solid rgba(0, 96, 192, 0.4);
    border-radius: var(--radius-sm);
    color: #dbe7f5;
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all var(--transition-smooth);
    text-decoration: none;
}

.btn-service-enquiry svg {
    transition: transform var(--transition-smooth);
    color: var(--color-cyan-glow);
}

.btn-service-enquiry:hover {
    background: linear-gradient(135deg, #0040A0 0%, #0060C0 100%);
    border-color: var(--color-cyan-glow);
    color: #ffffff;
    box-shadow: 0 3px 14px rgba(0, 96, 192, 0.38);
    transform: translateY(-1px);
}

.btn-service-enquiry:hover svg {
    color: #ffffff;
    transform: translateX(3px);
}

.btn-service-enquiry:active {
    transform: translateY(0);
}

/* ==========================================================================
   Courses Section (Obsidian Black Surface & Dark Graphite Cards)
   ========================================================================== */
.courses {
    padding: 110px 0;
    background-color: var(--color-black-surface);
    position: relative;
    border-top: 1px solid rgba(0, 96, 192, 0.15);
    border-bottom: 1px solid rgba(0, 96, 192, 0.15);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

/* Course Card (Pure Black / Graphite Dark Cyber Card) */
.course-card {
    background: var(--gradient-black-card);
    border: 1px solid rgba(86, 119, 149, 0.22);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-smooth);
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    position: relative;
}

.course-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-highlight);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 96, 192, 0.2);
}

.card-image {
    position: relative;
    height: 160px;
    background: linear-gradient(135deg, #000000 0%, #0A1424 60%, #16202D 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border-bottom: 1px solid rgba(0, 96, 192, 0.2);
}

.card-image::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 96, 192, 0.12) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 96, 192, 0.12) 1px, transparent 1px);
    background-size: 24px 24px;
}

.card-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-cyan-glow);
    position: relative;
    z-index: 1;
}

.card-badge {
    position: absolute;
    top: 14px;
    right: 14px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 5px 12px;
    border-radius: var(--radius-md);
    z-index: 2;
}

.card-badge.bestseller,
.card-badge.popular {
    background: rgba(0, 0, 0, 0.7);
    color: var(--color-white);
    border: 1px solid rgba(0, 96, 192, 0.5);
    backdrop-filter: blur(6px);
}

.card-body {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex: 1;
    background: transparent;
}

.card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.difficulty {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    background: rgba(0, 64, 160, 0.22);
    color: var(--color-cyan-glow);
    border: 1px solid rgba(0, 96, 192, 0.35);
}

.duration {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-text-dim);
    font-family: var(--font-mono);
}

.duration svg {
    stroke: var(--color-cyan-glow);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 12px;
    line-height: 1.35;
}

.card-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.7;
    margin-bottom: 24px;
    flex: 1;
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    margin-top: auto;
}

/* ==========================================================================
   Features / Why Us Section (Pure Black #000000 Background & Graphite Cards)
   ========================================================================== */
.features {
    padding: 110px 0;
    background-color: var(--color-black);
    color: var(--color-white);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 96, 192, 0.3), transparent);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    background: #0E141D;
    border: 1px solid rgba(86, 119, 149, 0.22);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.feature-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #0040A0, #0060C0);
    opacity: 0;
    transition: opacity var(--transition-smooth);
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-highlight);
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.6), 0 0 20px rgba(0, 96, 192, 0.2);
    background: #141D29;
}

.feature-card:hover::after {
    opacity: 1;
}

.feature-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(0, 64, 160, 0.25);
    border: 1px solid rgba(0, 96, 192, 0.4);
    color: var(--color-cyan-glow);
    margin-bottom: 22px;
    transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-highlight);
    box-shadow: 0 0 16px rgba(0, 96, 192, 0.5);
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ==========================================================================
   Testimonials Section (Deep Charcoal / Obsidian Black Cards)
   ========================================================================== */
.testimonials {
    padding: 110px 0;
    background-color: var(--color-black-surface);
    position: relative;
    border-top: 1px solid rgba(0, 96, 192, 0.15);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.testimonial-card {
    background: #0E141D;
    border: 1px solid rgba(86, 119, 149, 0.22);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition-smooth);
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.testimonial-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-highlight);
    box-shadow: 0 14px 36px rgba(0, 0, 0, 0.5), 0 0 18px rgba(0, 96, 192, 0.15);
    background: #131C28;
}

.stars {
    color: var(--color-cyan-glow);
    font-size: 1.1rem;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.75;
    margin-bottom: 24px;
    flex: 1;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 18px;
    border-top: 1px solid rgba(86, 119, 149, 0.2);
}

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    background: var(--color-primary);
    color: var(--color-white);
    flex-shrink: 0;
    border: 1px solid rgba(0, 96, 192, 0.35);
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--color-white);
}

.author-role {
    font-size: 0.82rem;
    color: var(--color-text-dim);
}

/* ==========================================================================
   CTA Section (Pure Black #000000 Background & Glowing Cyber Card)
   ========================================================================== */
.cta-section {
    padding: 110px 0;
    background: linear-gradient(180deg, #000000 0%, #040912 50%, #001730 100%);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(0, 96, 192, 0.2);
}

.cta-card {
    position: relative;
    background: linear-gradient(135deg, #090E16 0%, #121A26 100%);
    border: 1px solid rgba(0, 96, 192, 0.4);
    border-radius: var(--radius-xl);
    padding: 72px 40px;
    text-align: center;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.7), 0 0 35px rgba(0, 96, 192, 0.15);
}

.cta-glow {
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: rgba(0, 96, 192, 0.2);
    filter: blur(90px);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

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

.cta-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    margin-bottom: 18px;
    line-height: 1.25;
    color: var(--color-white);
}

.cta-text {
    font-size: 1.05rem;
    color: var(--color-text-light);
    max-width: 580px;
    margin: 0 auto 36px;
    line-height: 1.75;
}

.cta-phone {
    margin-top: 20px;
    font-size: 0.95rem;
    color: var(--color-text-dim);
}

.cta-phone a {
    color: var(--color-cyan-glow);
    font-weight: 600;
    transition: color var(--transition-fast);
}

.cta-phone a:hover {
    color: var(--color-white);
    text-decoration: underline;
}

/* ==========================================================================
   Footer (Pure Black #000000 Background)
   ========================================================================== */
.footer {
    padding: 70px 0 30px;
    background-color: var(--color-black);
    color: var(--color-white);
    border-top: 1px solid rgba(86, 119, 149, 0.2);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1.3fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--color-text-dim);
    margin-top: 16px;
    line-height: 1.7;
    max-width: 320px;
}

.footer-links h4 {
    font-size: 0.92rem;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--color-white);
    letter-spacing: 0.02em;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    font-size: 0.88rem;
    color: var(--color-text-dim);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-cyan-glow);
}

.footer-bottom {
    padding-top: 28px;
    border-top: 1px solid rgba(86, 119, 149, 0.15);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.82rem;
    color: var(--color-text-dim);
}

/* ==========================================================================
   Floating WhatsApp Button
   ========================================================================== */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    z-index: 999;
    width: 58px;
    height: 58px;
    background: var(--color-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FEFEFE;
    box-shadow: 0 6px 24px rgba(0, 64, 160, 0.45);
    transition: all var(--transition-smooth);
    animation: bounceIn 0.8s ease 1s both;
}

.whatsapp-float:hover {
    background: var(--color-highlight);
    transform: scale(1.08);
    box-shadow: 0 10px 32px rgba(0, 96, 192, 0.6);
}

.whatsapp-float::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: var(--color-highlight);
    animation: whatsappPulse 2.2s ease-in-out infinite;
    z-index: -1;
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: #0E141D;
    color: var(--color-white);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    border: 1px solid rgba(0, 96, 192, 0.3);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: translateX(8px);
    transition: all var(--transition-smooth);
    pointer-events: none;
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
    transform: translateX(0);
}

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

/* ==========================================================================
   COURSE DETAILS PAGE STYLES
   ========================================================================== */
.course-detail-section {
    padding: 130px 0 90px;
    position: relative;
    min-height: 100vh;
    background-color: var(--color-black-rich);
}

.detail-header-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 480px;
    background: linear-gradient(180deg, #000000 0%, #001730 65%, #0A121E 100%);
    z-index: 1;
    overflow: hidden;
}

.detail-header-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(0, 96, 192, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 96, 192, 0.08) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: linear-gradient(180deg, black 60%, transparent 100%);
    -webkit-mask-image: linear-gradient(180deg, black 60%, transparent 100%);
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--color-text-dim);
    margin-bottom: 24px;
    position: relative;
    z-index: 2;
}

.breadcrumbs a {
    color: var(--color-text-light);
}

.breadcrumbs a:hover {
    color: var(--color-cyan-glow);
}

.breadcrumbs-separator {
    color: var(--color-text-dim);
}

/* Detail Hero Section */
.detail-hero {
    margin-bottom: 48px;
    text-align: left;
    position: relative;
    z-index: 2;
    color: var(--color-white);
}

.detail-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-cyan-glow);
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(0, 96, 192, 0.4);
    padding: 6px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.detail-hero-title {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 900;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-white);
    margin-bottom: 16px;
}

.detail-hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.15rem);
    color: var(--color-text-light);
    max-width: 820px;
    line-height: 1.75;
    margin-bottom: 28px;
}

/* Layout Grid */
.course-detail-grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr;
    gap: 40px;
    align-items: start;
    position: relative;
    z-index: 2;
}

/* Main Content Blocks */
.course-detail-main {
    display: flex;
    flex-direction: column;
    gap: 36px;
}

.detail-block {
    background: var(--gradient-black-card);
    border: 1px solid rgba(86, 119, 149, 0.22);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    color: var(--color-text-light);
}

.detail-block-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(86, 119, 149, 0.2);
    padding-bottom: 16px;
}

.detail-block-title span.accent-icon {
    font-size: 1.4rem;
    color: var(--color-cyan-glow);
}

/* Highlights List */
.highlights-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 20px;
}

.highlight-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.highlight-check {
    color: var(--color-cyan-glow);
    font-size: 1.1rem;
    font-weight: 800;
    line-height: 1.2;
}

.highlight-text {
    font-size: 0.92rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* Timeline Cards */
.timeline-block {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.timeline-card {
    background: #0E141D;
    border: 1px solid rgba(86, 119, 149, 0.22);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-base);
}

.timeline-card:hover {
    border-color: var(--color-highlight);
    box-shadow: 0 6px 20px rgba(0, 64, 160, 0.15);
    background: #121A26;
}

.timeline-tag {
    font-family: var(--font-mono);
    color: var(--color-cyan-glow);
    font-size: 0.82rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 0.04em;
}

.timeline-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 10px;
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 12px;
}

.timeline-highlight {
    font-size: 0.85rem;
    color: var(--color-cyan-glow);
    font-weight: 600;
    font-family: var(--font-mono);
}

/* Interactive Syllabus Accordions */
.syllabus-accordion-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.syllabus-details {
    border: 1px solid rgba(86, 119, 149, 0.2);
    background: #0E141D;
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-smooth);
}

.syllabus-details[open] {
    border-color: var(--color-highlight);
    background: #121A26;
    box-shadow: 0 4px 16px rgba(0, 64, 160, 0.15);
}

.syllabus-summary {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    cursor: pointer;
    font-size: 0.98rem;
    font-weight: 600;
    color: var(--color-white);
    list-style: none;
    user-select: none;
    transition: color var(--transition-fast);
}

.syllabus-summary::-webkit-details-marker {
    display: none;
}

.syllabus-summary:hover {
    color: var(--color-cyan-glow);
}

.syllabus-summary-title {
    display: flex;
    align-items: center;
    gap: 12px;
}

.syllabus-number {
    font-family: var(--font-mono);
    color: var(--color-text-dim);
    font-size: 0.8rem;
    font-weight: 700;
    background: rgba(0, 0, 0, 0.5);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(86, 119, 149, 0.25);
}

.syllabus-details[open] .syllabus-number {
    color: var(--color-white);
    background: var(--color-primary);
    border-color: var(--color-primary);
}

.syllabus-summary-icon {
    font-family: var(--font-mono);
    font-size: 1.2rem;
    color: var(--color-text-dim);
    transition: transform var(--transition-base), color var(--transition-base);
}

.syllabus-details[open] .syllabus-summary-icon {
    transform: rotate(45deg);
    color: var(--color-cyan-glow);
}

.syllabus-content {
    padding: 0 20px 20px 54px;
    border-top: 1px solid rgba(86, 119, 149, 0.15);
    margin-top: -1px;
}

.syllabus-topics {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 14px;
}

.syllabus-topic-item {
    position: relative;
    padding-left: 16px;
    font-size: 0.88rem;
    color: var(--color-text-light);
}

.syllabus-topic-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 9px;
    width: 6px;
    height: 6px;
    background: var(--color-highlight);
    border-radius: 50%;
}

/* Hands-On Practical Exposure & Tools Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
    margin-top: 20px;
}

.tool-badge {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 12px 10px;
    background: #0E141D;
    border: 1px solid rgba(86, 119, 149, 0.22);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--color-white);
    transition: all var(--transition-smooth);
}

.tool-badge:hover {
    border-color: var(--color-highlight);
    background: #141D29;
    box-shadow: 0 4px 16px rgba(0, 96, 192, 0.25);
    color: var(--color-cyan-glow);
    transform: translateY(-2px);
}

.ethical-environment-note {
    margin-top: 24px;
    padding: 16px 20px;
    border-radius: var(--radius-md);
    background: rgba(0, 64, 160, 0.12);
    border: 1px solid rgba(0, 96, 192, 0.3);
    color: var(--color-text-light);
    font-size: 0.88rem;
    line-height: 1.6;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.ethical-note-icon {
    font-size: 1.1rem;
    line-height: 1;
    color: var(--color-cyan-glow);
}

/* ==========================================================================
   Sticky Sidebar & High-Converting Enquiry Card
   ========================================================================== */
.course-detail-sidebar {
    position: sticky;
    top: 100px;
    z-index: 10;
}

.enquiry-card {
    background: var(--gradient-black-card);
    color: var(--color-white);
    border: 1.5px solid rgba(0, 96, 192, 0.4);
    border-radius: var(--radius-xl);
    padding: 36px 30px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6), 0 0 25px rgba(0, 96, 192, 0.15);
    position: relative;
    overflow: hidden;
}

.enquiry-card::after {
    content: '';
    position: absolute;
    top: -80px;
    right: -80px;
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: rgba(0, 96, 192, 0.25);
    filter: blur(60px);
    pointer-events: none;
}

.enquiry-card-badge {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--color-cyan-glow);
    background: rgba(0, 0, 0, 0.6);
    padding: 4px 12px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    border: 1px solid rgba(0, 96, 192, 0.4);
}

.enquiry-card-title {
    font-size: 1.45rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 12px;
    color: var(--color-white);
}

.enquiry-card-desc {
    font-size: 0.9rem;
    color: var(--color-text-light);
    margin-bottom: 24px;
    line-height: 1.65;
}

.enquiry-meta-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 28px;
    border-top: 1px solid rgba(86, 119, 149, 0.25);
    border-bottom: 1px solid rgba(86, 119, 149, 0.25);
    padding: 20px 0;
}

.enquiry-meta-item {
    display: flex;
    align-items: center;
    gap: 14px;
}

.enquiry-meta-icon {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    background: rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(0, 96, 192, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-cyan-glow);
    font-size: 0.95rem;
    flex-shrink: 0;
}

.enquiry-meta-info {
    display: flex;
    flex-direction: column;
}

.enquiry-meta-label {
    font-size: 0.76rem;
    color: var(--color-text-dim);
}

.enquiry-meta-value {
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--color-white);
}

.enquiry-callout {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 96, 192, 0.35);
    border-radius: var(--radius-md);
    padding: 14px;
    text-align: center;
    margin-bottom: 24px;
}

.enquiry-callout-text {
    font-size: 0.85rem;
    color: #D3E4F5;
    font-weight: 500;
}

.enquiry-card .btn-whatsapp-large {
    width: 100%;
    justify-content: center;
    padding: 15px 24px;
    font-size: 1rem;
    background: var(--color-primary);
    color: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0, 64, 160, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.enquiry-card .btn-whatsapp-large:hover {
    background: var(--color-highlight);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(0, 96, 192, 0.6);
}

/* ==========================================================================
   Animations & Transitions
   ========================================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(28px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounceIn {
    from {
        opacity: 0;
        transform: scale(0.4);
    }
    50% {
        transform: scale(1.05);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

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

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
    .courses-grid {
        grid-template-columns: 1fr;
    }

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

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

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 36px;
    }

    .course-detail-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }

    .course-detail-sidebar {
        position: static;
        margin-top: 16px;
    }

    .enquiry-card {
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 28px;
        z-index: 998;
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links a {
        font-size: 1.25rem;
    }

    .mobile-toggle {
        display: flex;
        z-index: 999;
    }

    .mobile-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .mobile-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .services-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .cta-card {
        padding: 48px 24px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .highlights-list {
        grid-template-columns: 1fr;
    }

    .course-detail-section {
        padding: 110px 0 60px;
    }

    .detail-block {
        padding: 24px;
    }

    .syllabus-content {
        padding: 0 16px 20px 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero {
        padding: 110px 0 60px;
    }

    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .stat-number {
        font-size: 1.7rem;
    }

    .section-title {
        font-size: 1.85rem;
    }

    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 52px;
        height: 52px;
    }
}