/* 
========================================================================
   AI Tools for Teachers Webinar Registration System - Main Stylesheet
    Organization: TAITS TECH
   Author: Senior Full Stack Developer & UI/UX Specialist
========================================================================
*/

/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

/* --- Root variables: Light Mode Theme --- */
:root {
    --primary: #1d4ed8;            /* Vibrant royal blue from the hero block */
    --primary-hover: #1e40af;      /* Slightly darker deep royal blue */
    --secondary: #0b1f7f;          /* Dark navy/indigo from search pill outline */
    --secondary-hover: #06103b;    /* Very dark navy */
    --dark: #0f172a;
    --light: #f8fafc;
    --success: #15803d;            /* Rich green from Join WhatsApp button */
    --accent: #fbbf24;             /* Bright golden yellow from title glow */
    --accent-glow: rgba(251, 191, 36, 0.15);
    
    /* Semantic Colors */
    --bg-main: lightyellow;            /* Clean off-white light slate background */
    --bg-card: rgba(255, 255, 255, 0.85); /* Translucent white card overlay */
    --bg-nav: #0b1f7f;             /* Solid navy blue header background to match screenshot */
    --text-main: #0f172a;          /* Premium dark slate for legibility in body elements */
    --text-muted: #475569;         /* Slate grey for subtext and details */
    --border-color: rgba(15, 23, 42, 0.08); /* Clean, soft light border line */
    --border-glass: rgba(255, 255, 255, 0.6);
    
    /* Dedicated Navigation Text Colors */
    --text-nav: #ffffff;           /* Crisp white for logo and navigation links */
    --text-nav-muted: #e2e8f0;     /* Light slate for secondary nav links */
    
    /* Box Shadows */
    --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.03);
    --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.05), 0 8px 10px -6px rgba(15, 23, 42, 0.05);
    --shadow-lg: 0 20px 50px -12px rgba(15, 23, 42, 0.08);
    --shadow-success: 0 10px 20px -5px rgba(21, 128, 61, 0.2);
    
    /* Transition Defaults */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Borders */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
}

/* --- Root variables: Dark Mode Theme --- */
[data-theme="dark"] {
    --bg-main: #0b0f19;
    --bg-card: rgba(15, 23, 42, 0.7);
    --bg-nav: rgba(11, 15, 25, 0.85);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: rgba(56, 189, 248, 0.15);
    --border-glass: rgba(15, 23, 42, 0.5);
    
    /* Dedicated Navigation Text Colors (Dark Mode) */
    --text-nav: #f8fafc;
    --text-nav-muted: #94a3b8;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 50px -12px rgba(0, 0, 0, 0.45);
    --shadow-success: 0 10px 20px -5px rgba(34, 197, 94, 0.2);
}

/* ========================================================================
   1. GLOBAL RESET & BASE STYLES
   ======================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

ul {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

/* ========================================================================
   2. REUSABLE UTILITIES & LAYOUT
   ======================================================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: 100px 0;
}

.text-center { text-align: center; }

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    align-items: center;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

/* Glassmorphism Card Utility */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px) saturate(120%);
    -webkit-backdrop-filter: blur(16px) saturate(120%);
    border: 1px solid var(--border-color);
    border-top: 1px solid var(--border-glass);
    border-left: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.glass-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(14, 165, 233, 0.3);
    transform: translateY(-5px);
}

/* Typography Utilities */
.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 12px;
    position: relative;
    display: inline-block;
}

.section-title span {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 50px auto;
}

.badge {
    background-color: var(--accent-glow);
    color: var(--primary);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid rgba(14, 165, 233, 0.2);
    display: inline-block;
    margin-bottom: 16px;
}

/* Button UI Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-full); /* Beautiful highly-rounded pill shapes matching TAITS TECH theme */
    cursor: pointer;
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 4px 15px rgba(29, 78, 216, 0.25); /* Adjusted to royal blue shadow glow */
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--secondary-hover));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(29, 78, 216, 0.35);
    color: #fff;
}

.btn-secondary {
    background: transparent;
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--accent-glow);
    border-color: var(--primary);
    transform: translateY(-2px);
}

/* Header button override for high-contrast on blue nav header */
header .btn-secondary {
    color: var(--text-nav);
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
}

header .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* ========================================================================
   3. SYSTEM WIDE WIDGETS (LOADER, SCROLL-PROGRESS, FLOATING BTNS, TOGGLE)
   ======================================================================== */
/* preloader screen */
.loader-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-main);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 20px;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loader-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Scroll Progress Bar */
.scroll-progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    z-index: 10000;
}

.scroll-progress-bar {
    height: 100%;
    width: 0%;
    background: linear-gradient(to right, var(--primary), var(--success));
    transition: width 0.1s ease-out;
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    font-size: 1.1rem;
    color: var(--text-nav);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.theme-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: var(--accent);
    color: var(--accent);
    transform: rotate(15deg) scale(1.05);
}

/* Floating Actions */
.floating-actions {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.floating-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.4rem;
    color: #fff;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.whatsapp-float {
    background-color: #25d366;
}

.whatsapp-float:hover {
    background-color: #128c7e;
    transform: translateY(-5px) scale(1.05);
}

.back-to-top {
    background-color: var(--primary);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--primary-hover);
    transform: translateY(-5px) scale(1.05);
}

/* Dynamic Particle Background */
.particle-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
    pointer-events: none;
}

.particle {
    position: absolute;
    display: block;
    background: radial-gradient(circle, rgba(14, 165, 233, 0.25) 0%, rgba(56, 189, 248, 0) 70%);
    border-radius: 50%;
    bottom: -150px;
    animation: bubbleUp 25s infinite linear;
}

@keyframes bubbleUp {
    0% {
        transform: translateY(0) scale(1) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        transform: translateY(-120vh) scale(1.5) rotate(360deg);
        opacity: 0;
    }
}

/* ========================================================================
   4. NAVIGATION BAR HEADER
   ======================================================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 998;
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

header.scrolled {
    box-shadow: var(--shadow-sm);
    padding: 5px 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-nav);
}

.logo span {
    color: var(--accent);
}

.logo i {
    color: var(--accent);
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    font-weight: 500;
    color: var(--text-nav-muted);
    font-size: 0.95rem;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Hamburger menu */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-nav);
    border-radius: 3px;
    transition: var(--transition);
}

/* ========================================================================
   5. LANDING PAGE - INDEX.HTML SECTIONS
   ======================================================================== */

/* SECTION 1: HERO SECTION */
.hero {
    position: relative;
    padding: 160px 0 100px 0;
    background: radial-gradient(120% 120% at 50% 10%, var(--bg-main) 40%, rgba(14, 165, 233, 0.08) 100%);
    overflow: hidden;
}

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

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero-title span {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 30px;
    max-width: 580px;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 35px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
}

.meta-item i {
    color: var(--primary);
}

.meta-item.fee {
    background: var(--accent-glow);
    border-color: var(--primary);
    color: var(--secondary);
    font-weight: 700;
}

.meta-item.fee i {
    color: inherit; /* Align icon color with text color */
}

[data-theme="dark"] .meta-item.fee {
    background: rgba(251, 191, 36, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.hero-buttons {
    display: flex;
    gap: 15px;
    margin-bottom: 40px;
}

.hero-illustration-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2;
}

/* Dynamic CSS Illustration placeholder with modern floating shapes */
.hero-svg-illustration {
    width: 100%;
    max-width: 480px;
    filter: drop-shadow(0 20px 30px rgba(15, 23, 42, 0.15));
}

.floating-icon {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    width: 54px;
    height: 54px;
    border-radius: var(--radius-sm);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3rem;
    color: var(--primary);
    box-shadow: var(--shadow-md);
    animation: float 4s ease-in-out infinite;
}

.f-icon-1 { top: 10%; left: 10%; animation-delay: 0s; }
.f-icon-2 { bottom: 15%; left: 5%; animation-delay: 1.3s; }
.f-icon-3 { top: 25%; right: 5%; animation-delay: 0.7s; }
.f-icon-4 { bottom: 20%; right: 15%; animation-delay: 2s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-12px) rotate(5deg); }
}

/* Countdown Timer */
.countdown-box {
    margin-top: 15px;
    padding: 24px;
    max-width: 500px;
    text-align: center;
}

.countdown-title {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.countdown-timer {
    display: flex;
    justify-content: space-between;
    gap: 10px;
}

.countdown-item {
    flex: 1;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 5px;
}

.countdown-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.1;
}

.countdown-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-top: 2px;
}

/* Sticky Mobile CTA */
.sticky-mobile-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--bg-nav);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--border-color);
    padding: 12px 24px;
    display: none;
    justify-content: space-between;
    align-items: center;
    z-index: 997;
    box-shadow: 0 -5px 15px rgba(0,0,0,0.05);
}

.sticky-mobile-cta .fee-info {
    display: flex;
    flex-direction: column;
}

.sticky-mobile-cta .fee-val {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent); /* High-contrast golden accent matching theme */
}

.sticky-mobile-cta .fee-lbl {
    font-size: 0.75rem;
    color: var(--text-nav-muted); /* High-contrast light slate grey */
}

.sticky-mobile-cta .btn {
    padding: 10px 20px;
    font-size: 0.9rem;
}

/* SECTION 2: ABOUT WEBINAR */
.about {
    background-color: var(--bg-main);
    position: relative;
}

.about-cards {
    margin-top: 40px;
}

.about-card {
    padding: 30px;
    text-align: left;
}

.about-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    background: var(--accent-glow);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.6rem;
    color: var(--primary);
    margin-bottom: 24px;
    border: 1px solid rgba(14, 165, 233, 0.2);
}

.about-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.about-card-text {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* SECTION 3: WHAT YOU WILL LEARN */
.learn {
    background: radial-gradient(100% 100% at 50% 50%, var(--bg-main) 60%, rgba(14, 165, 233, 0.05) 100%);
}

.learn-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    height: 100%;
}

.learn-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: var(--accent-glow);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.25rem;
    color: var(--primary);
}

.learn-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    line-height: 1.4;
}

.learn-card-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* SECTION 4: WHO CAN ATTEND */
.attendees {
    background-color: var(--bg-main);
}

.attendee-card {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
}

.attendee-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--accent-glow);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.3rem;
    color: var(--primary);
    flex-shrink: 0;
}

.attendee-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.attendee-info p {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* SECTION 5: BENEFITS */
.benefits {
    background: radial-gradient(120% 120% at 50% 100%, var(--bg-main) 60%, rgba(34, 197, 94, 0.05) 100%);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    align-items: center;
}

.benefits-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.benefit-item {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.benefit-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.1rem;
}

.benefit-title {
    font-size: 1rem;
    font-weight: 600;
}

.benefit-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Visual Mockups container */
.benefit-mockup-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.benefit-badge-floating {
    position: absolute;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.b-floating-1 { top: 10%; left: 0; }
.b-floating-2 { bottom: 15%; right: 0; }

.benefit-badge-floating i {
    font-size: 1.4rem;
    color: var(--success);
}

/* SECTION 6: TRAINER SECTION */
.trainer {
    background-color: var(--bg-main);
}

.trainer-card-container {
    max-width: 800px;
    margin: 0 auto;
}

.trainer-card {
    display: flex;
    align-items: center;
    padding: 40px;
    gap: 40px;
}

.trainer-image-wrapper {
    flex-shrink: 0;
    position: relative;
}

.trainer-img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg-main);
    box-shadow: var(--shadow-md);
}

.trainer-image-wrapper::after {
    content: '';
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    border-radius: 50%;
    border: 2px dashed var(--primary);
    z-index: -1;
    animation: rotateDashed 20s linear infinite;
}

@keyframes rotateDashed {
    100% { transform: rotate(360deg); }
}

.trainer-info {
    flex-grow: 1;
}

.trainer-role {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 6px;
}

.trainer-name {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.trainer-bio {
    font-size: 0.95rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.trainer-features {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.trainer-tag {
    background: var(--accent-glow);
    color: var(--primary);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: var(--radius-full);
    border: 1px solid rgba(14, 165, 233, 0.1);
}

.trainer-socials {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    display: flex;
    justify-content: center;
    align-items: center;
    color: var(--text-muted);
    transition: var(--transition);
}

.social-link:hover {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
    transform: scale(1.05);
}

/* SECTION 7: WEBINAR OUTCOMES */
.outcomes {
    background: radial-gradient(100% 100% at 50% 0%, var(--bg-main) 60%, rgba(14, 165, 233, 0.04) 100%);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 50px auto 0 auto;
    padding: 10px 0;
}

.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background-color: var(--border-color);
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: -1px;
}

.timeline-item {
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

.timeline-item::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    right: -8px;
    background-color: var(--bg-main);
    border: 3px solid var(--primary);
    top: 24px;
    border-radius: 50%;
    z-index: 1;
}

.left-item {
    left: 0;
}

.right-item {
    left: 50%;
}

.right-item::after {
    left: -8px;
}

.timeline-content {
    padding: 24px;
    position: relative;
}

.timeline-num {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-desc {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* SECTION 8: CERTIFICATE PREVIEW */
.certificate {
    background-color: var(--bg-main);
}

.certificate-card {
    max-width: 700px;
    margin: 0 auto;
    overflow: hidden;
    cursor: zoom-in;
    position: relative;
}

.certificate-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.4);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
}

.certificate-card:hover .certificate-overlay {
    opacity: 1;
}

.certificate-overlay i {
    font-size: 2.5rem;
    color: #fff;
    transform: scale(0.8);
    transition: var(--transition);
}

.certificate-card:hover .certificate-overlay i {
    transform: scale(1);
}

.certificate-img-container {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    pointer-events: none;
}

.certificate-img {
    width: 100%;
    height: auto;
    transition: var(--transition);
}

.certificate-card:hover .certificate-img {
    transform: scale(1.03);
}

.cert-note {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 15px;
}

/* Modal Popup Preview */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(8px);
    z-index: 9999;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content-wrapper {
    position: relative;
    max-width: 90%;
    max-height: 85%;
    transform: scale(0.9);
    transition: transform 0.4s ease;
}

.modal.active .modal-content-wrapper {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: -45px;
    right: 0;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--primary);
    transform: scale(1.1);
}

.modal-img {
    width: 100%;
    max-height: 80vh;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    user-select: none;
    -webkit-user-drag: none;
}

/* SECTION 9: TESTIMONIALS */
.testimonials {
    background: radial-gradient(120% 120% at 50% 50%, var(--bg-main) 60%, rgba(14, 165, 233, 0.05) 100%);
}

.testimonials-carousel {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    padding: 20px 0;
}

.testimonials-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.testimonial-slide {
    min-width: 100%;
    padding: 10px 20px;
}

.testimonial-card {
    padding: 40px;
    text-align: center;
}

.testimonial-quote {
    font-size: 1.15rem;
    font-style: italic;
    color: var(--text-main);
    margin-bottom: 24px;
    position: relative;
}

.testimonial-quote::before, .testimonial-quote::after {
    content: '"';
    font-size: 3rem;
    font-family: serif;
    color: var(--accent);
    position: absolute;
    line-height: 1;
    opacity: 0.3;
}

.testimonial-quote::before { left: -15px; top: -15px; }
.testimonial-quote::after { right: -15px; bottom: -30px; }

.testimonial-author-img {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto 15px auto;
    border: 2px solid var(--primary);
}

.testimonial-author-name {
    font-size: 1.1rem;
    font-weight: 600;
}

.testimonial-author-title {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.testimonial-rating {
    color: #eab308;
    font-size: 0.95rem;
}

/* Carousel indicators */
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 24px;
}

.carousel-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.carousel-dot.active {
    background-color: var(--primary);
    transform: scale(1.2);
}

/* SECTION 10: FAQ (ACCORDION) */
.faq {
    background-color: var(--bg-main);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.faq-trigger {
    width: 100%;
    background: none;
    border: none;
    padding: 20px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    cursor: pointer;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition);
}

.faq-trigger:hover {
    background-color: var(--accent-glow);
}

.faq-trigger i {
    color: var(--primary);
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.faq-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    background: transparent;
}

.faq-content p {
    padding: 0 24px 20px 24px;
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* FAQ Active state styles set via JavaScript classes */
.faq-item.active {
    border-color: var(--primary);
}

.faq-item.active .faq-trigger {
    background-color: var(--accent-glow);
}

.faq-item.active .faq-trigger i {
    transform: rotate(180deg);
}

/* SECTION 11: FINAL CTA */
.final-cta {
    background: radial-gradient(120% 120% at 50% 10%, var(--bg-main) 30%, rgba(14, 165, 233, 0.08) 100%);
    position: relative;
}

.cta-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px 40px;
    position: relative;
    overflow: hidden;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* SECTION 12: FOOTER */
footer {
    background-color: var(--dark);
    color: #94a3b8;
    padding: 80px 0 30px 0;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-brand .logo {
    color: #fff;
    margin-bottom: 20px;
}

.footer-brand .logo i {
    color: var(--accent);
}

.footer-brand p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 24px;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-socials .social-link {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    color: #94a3b8;
}

.footer-socials .social-link:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.footer-title {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 24px;
    position: relative;
}

.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -8px;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

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

.footer-link {
    color: #94a3b8;
    font-size: 0.9rem;
}

.footer-link:hover {
    color: #fff;
    transform: translateX(3px);
}

.footer-contact-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.footer-contact-item i {
    color: var(--accent);
    font-size: 1.1rem;
    margin-top: 3px;
}

.footer-contact-item a {
    color: #94a3b8;
}

.footer-contact-item a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.05);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
}

.footer-legal-links {
    display: flex;
    gap: 20px;
}

.footer-legal-link {
    color: #94a3b8;
}

.footer-legal-link:hover {
    color: #fff;
}

/* ========================================================================
   6. CORE KEYFRAME ANIMATIONS
   ======================================================================== */
@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 4px 15px rgba(14, 165, 233, 0.3); }
    50% { box-shadow: 0 4px 25px rgba(14, 165, 233, 0.6); }
}

.pulse-primary {
    animation: pulseGlow 3s infinite;
}