/* ======================================
   B_CORNER - Main Stylesheet
   Dark theme with neon blue & orange accents
   ====================================== */

/* CSS Variables */
:root {
    --bg-primary: #0a0a1a;
    --bg-secondary: #0f0f2a;
    --bg-card: #141432;
    --bg-card-hover: #1a1a40;
    --text-primary: #ffffff;
    --text-secondary: #b8b8d0;
    --text-muted: #6a6a8a;
    --accent-blue: #00d4ff;
    --accent-blue-dark: #0099cc;
    --accent-orange: #ff6b35;
    --accent-orange-dark: #e55a2b;
    --accent-glow: rgba(0, 212, 255, 0.3);
    --accent-glow-orange: rgba(255, 107, 53, 0.3);
    --gradient-primary: linear-gradient(135deg, #00d4ff, #0066ff);
    --gradient-orange: linear-gradient(135deg, #ff6b35, #ff8c42);
    --gradient-dark: linear-gradient(180deg, #0a0a1a 0%, #0f0f2a 100%);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 212, 255, 0.2);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(0, 212, 255, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --font-primary: 'Montserrat', sans-serif;
    --font-display: 'Playfair Display', serif;
    --transition: all 0.3s ease;
    --transition-slow: all 0.5s ease;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ======================================
   TOP BAR
   ====================================== */
.topbar {
    background: rgba(0, 212, 255, 0.15);
    backdrop-filter: blur(10px);
    color: var(--accent-blue);
    text-align: center;
    padding: 6px 0;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
    z-index: 1002;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.topbar.hidden {
    transform: translateY(-100%);
    opacity: 0;
}

/* ======================================
   NAVBAR
   ====================================== */
.navbar {
    position: fixed;
    top: 28px;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    transition: var(--transition);
    background: transparent;
}

.navbar.scrolled {
    top: 0;
}

.navbar.scrolled {
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(20px);
    padding: 10px 0;
    box-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
    border-bottom: 1px solid var(--border-glow);
    top: 0;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 2px;
    z-index: 1001;
}

.logo-b {
    color: var(--accent-blue);
    text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.logo-underscore {
    color: var(--accent-orange);
    text-shadow: 0 0 20px rgba(255, 107, 53, 0.5);
}

.logo-corner {
    color: var(--text-primary);
}

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

.nav-menu a {
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--text-secondary);
    position: relative;
}

.nav-menu a:hover {
    color: var(--accent-blue);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: var(--transition);
    box-shadow: 0 0 10px var(--accent-blue);
}

.nav-menu a:hover::after {
    width: 100%;
}

.btn-nav {
    background: var(--gradient-orange) !important;
    color: #fff !important;
    padding: 10px 24px !important;
    border-radius: var(--radius-xl) !important;
    font-weight: 700 !important;
    letter-spacing: 1px !important;
    box-shadow: 0 4px 15px var(--accent-glow-orange);
}

.btn-nav::after {
    display: none !important;
}

.btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px var(--accent-glow-orange);
}

/* Mobile Nav Toggle */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
    padding: 5px;
}

.nav-toggle span {
    width: 28px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* ======================================
   HERO SECTION
   ====================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    padding-top: 80px;
}

.hero-video-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(0, 212, 255, 0.08) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(255, 107, 53, 0.06) 0%, transparent 60%),
        radial-gradient(ellipse at 50% 0%, rgba(0, 102, 255, 0.1) 0%, transparent 60%),
        url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 900"><rect fill="%230a0a1a" width="1440" height="900"/></svg>');
    background-size: cover;
    background-position: center;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10,10,26,0.3) 0%, rgba(10,10,26,0.6) 50%, rgba(10,10,26,0.95) 100%);
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 50% 50%, rgba(0, 212, 255, 0.05) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% {
        background: radial-gradient(circle at 30% 40%, rgba(0, 212, 255, 0.08) 0%, transparent 50%);
    }
    50% {
        background: radial-gradient(circle at 70% 60%, rgba(255, 107, 53, 0.06) 0%, transparent 50%);
    }
    100% {
        background: radial-gradient(circle at 50% 30%, rgba(0, 212, 255, 0.08) 0%, transparent 50%);
    }
}

.hero-content {
    text-align: center;
    z-index: 1;
    padding: 0 20px;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.2;
    letter-spacing: 4px;
    margin-bottom: 20px;
}

.hero-title-line {
    display: block;
}

.hero-title-line.accent {
    color: var(--accent-blue);
    text-shadow: 0 0 40px rgba(0, 212, 255, 0.4);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 36px;
    border-radius: var(--radius-xl);
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
    border: 2px solid var(--accent-blue);
    color: var(--accent-blue);
    background: transparent;
}

.btn-outline:hover {
    background: var(--accent-blue);
    color: #000;
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-accent {
    background: var(--gradient-orange);
    color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow-orange);
}

.btn-accent:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--accent-glow-orange);
}

/* Hero Info Cards */
.hero-info-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    width: 100%;
    max-width: 1100px;
    padding: 0 20px;
    margin: 0 auto;
    z-index: 1;
    position: relative;
    bottom: 40px;
}

.info-card {
    background: rgba(20, 20, 50, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-md);
    padding: 30px 20px;
    text-align: center;
    transition: var(--transition);
}

.info-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.info-card-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    font-size: 1.2rem;
}

.info-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: 1px;
}

.info-card p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.info-card-link {
    display: inline-block;
    margin-top: 8px;
    color: var(--accent-orange);
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 1px;
}

.info-card-link:hover {
    color: var(--accent-blue);
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 160px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--text-muted);
    border-radius: 13px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--accent-blue);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s ease-in-out infinite;
}

@keyframes scrollWheel {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 24px; }
}

/* ======================================
   ALWAYS OPEN BANNER
   ====================================== */
.always-open {
    background: var(--gradient-primary);
    padding: 30px 0;
    text-align: center;
}

.always-open h2 {
    font-size: 1.3rem;
    font-weight: 800;
    letter-spacing: 3px;
    color: #000;
    margin-bottom: 15px;
}

.always-open-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.always-open .btn {
    padding: 12px 28px;
    font-size: 0.85rem;
}

.always-open .btn-primary {
    background: #000;
    color: var(--accent-blue);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.always-open .btn-accent {
    background: var(--accent-orange);
    color: #fff;
}

/* ======================================
   SECTIONS (Common)
   ====================================== */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--accent-blue);
    background: rgba(0, 212, 255, 0.1);
    padding: 6px 20px;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-glow);
    margin-bottom: 20px;
}

.section-title {
    font-family: var(--font-primary);
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: 1px;
}

.accent {
    color: var(--accent-blue);
}

.section-divider {
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    margin: 20px auto 0;
    border-radius: 2px;
    box-shadow: 0 0 15px var(--accent-glow);
}

/* ======================================
   ABOUT SECTION
   ====================================== */
.about {
    background: var(--gradient-dark);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-letter h3 {
    font-size: 1.3rem;
    color: var(--accent-blue);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.about-letter p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.8;
    font-size: 0.95rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.stat {
    text-align: center;
    padding: 20px 10px;
    background: var(--bg-card);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.stat:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--accent-blue);
    display: inline;
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue);
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-top: 5px;
}

.about-image-wrapper {
    position: relative;
}

.image-placeholder {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 15px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.image-placeholder i {
    font-size: 3rem;
    color: var(--accent-blue);
    opacity: 0.5;
}

.about-img {
    height: 450px;
}

.about-image-accent {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--accent-blue);
    border-radius: var(--radius-lg);
    z-index: -1;
    opacity: 0.3;
}

/* ======================================
   VALUES SECTION
   ====================================== */
.values {
    background: var(--bg-secondary);
    padding: 80px 0;
}

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

.value-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}

.value-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.value-card.featured {
    border-color: var(--accent-blue);
    background: linear-gradient(180deg, rgba(0, 212, 255, 0.05) 0%, var(--bg-card) 100%);
    box-shadow: var(--shadow-glow);
}

.value-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.value-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    letter-spacing: 1px;
}

.value-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ======================================
   CONCEPT SECTION
   ====================================== */
.concept {
    background: var(--bg-primary);
}

.concept-grid {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.concept-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.concept-item.reverse {
    direction: rtl;
}

.concept-item.reverse > * {
    direction: ltr;
}

.concept-img {
    height: 320px;
    border-radius: var(--radius-lg);
}

.concept-content h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--accent-blue);
}

.concept-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ======================================
   ACTIVITIES SECTION
   ====================================== */
.activities {
    background: var(--bg-secondary);
}

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

.activity-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 35px 25px;
    text-align: center;
    transition: var(--transition);
}

.activity-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.activity-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.3rem;
    color: #fff;
}

.activity-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.activity-card p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.7;
}

/* ======================================
   ZONES SECTION
   ====================================== */
.zones {
    background: var(--bg-primary);
}

.zones-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.zone-card {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    cursor: pointer;
}

.zone-image {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.zone-img {
    height: 100%;
    border-radius: var(--radius-lg);
    transition: var(--transition-slow);
}

.zone-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 30px 20px;
    background: linear-gradient(transparent, rgba(10, 10, 26, 0.95));
    transform: translateY(30px);
    opacity: 0.8;
    transition: var(--transition);
}

.zone-card:hover .zone-overlay {
    transform: translateY(0);
    opacity: 1;
}

.zone-card:hover .zone-img {
    transform: scale(1.05);
}

.zone-overlay h3 {
    font-size: 1.1rem;
    color: var(--accent-blue);
    margin-bottom: 8px;
}

.zone-overlay p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ======================================
   BOOTH DESIGN SECTION
   ====================================== */
.booth-design {
    background: var(--bg-secondary);
}

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

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

.booth-img {
    height: 250px;
    border-radius: var(--radius-lg);
    margin-bottom: 20px;
    transition: var(--transition);
}

.booth-item:hover .booth-img {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.booth-item h4 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--accent-blue);
}

.booth-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ======================================
   EVENTS SECTION
   ====================================== */
.events {
    background: var(--bg-primary);
}

.events-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.event-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition);
    position: relative;
}

.event-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.event-date {
    position: absolute;
    top: 15px;
    left: 15px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    padding: 10px 12px;
    text-align: center;
    z-index: 2;
    line-height: 1;
}

.event-date .day {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.event-date .num {
    display: block;
    font-size: 1.5rem;
    font-weight: 900;
    margin: 2px 0;
}

.event-date .month {
    display: block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

.event-img {
    height: 180px;
    border-radius: 0;
}

.event-content {
    padding: 20px;
}

.event-location {
    font-size: 0.8rem;
    color: var(--accent-orange);
    font-weight: 600;
    letter-spacing: 1px;
}

.event-location i {
    margin-right: 5px;
}

.event-content h3 {
    font-size: 1rem;
    margin: 8px 0 5px;
    font-weight: 700;
}

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

.events-cta {
    text-align: center;
    margin-top: 50px;
}

/* ======================================
   PROMOTION SECTION
   ====================================== */
.promotion {
    background: var(--bg-secondary);
}

.promotion-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.promo-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 35px 25px;
    text-align: center;
    transition: var(--transition);
}

.promo-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.promo-card > i {
    font-size: 2.5rem;
    color: var(--accent-blue);
    margin-bottom: 15px;
}

.promo-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

.promo-card p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* ======================================
   COOPERATION SECTION
   ====================================== */
.cooperation {
    background: var(--bg-primary);
}

.cooperation-content {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.coop-objectives h3,
.coop-plans h3 {
    font-size: 1.4rem;
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.coop-objectives h3 i,
.coop-plans h3 i {
    color: var(--accent-blue);
}

.coop-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.coop-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.coop-list li i {
    color: var(--accent-blue);
    margin-top: 4px;
    flex-shrink: 0;
}

.plan-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.plan-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 35px 25px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.plan-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.plan-card.featured {
    border-color: var(--accent-blue);
    background: linear-gradient(180deg, rgba(0, 212, 255, 0.05) 0%, var(--bg-card) 100%);
    box-shadow: var(--shadow-glow);
    transform: scale(1.05);
}

.plan-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.plan-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: #000;
    font-size: 0.75rem;
    font-weight: 800;
    padding: 4px 16px;
    border-radius: var(--radius-xl);
    letter-spacing: 1px;
    margin-bottom: 15px;
}

.plan-card h4 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--accent-blue);
}

.plan-card ul {
    text-align: left;
    margin-bottom: 25px;
}

.plan-card li {
    color: var(--text-secondary);
    font-size: 0.88rem;
    padding: 6px 0;
    border-bottom: 1px solid var(--border-color);
    line-height: 1.5;
}

.plan-card li:last-child {
    border-bottom: none;
}

/* ======================================
   PILOT / TIMELINE SECTION
   ====================================== */
.pilot {
    background: var(--bg-secondary);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding-left: 60px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-glow);
}

.timeline-item {
    position: relative;
    margin-bottom: 50px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -60px;
    top: 0;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1;
    box-shadow: 0 0 20px var(--accent-glow);
}

.timeline-marker span {
    font-size: 0.7rem;
    font-weight: 800;
    color: #000;
    line-height: 1;
}

.timeline-marker small {
    font-size: 0.5rem;
    font-weight: 600;
    color: #000;
    line-height: 1;
}

.timeline-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 25px 30px;
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
}

.timeline-content h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: var(--accent-blue);
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ======================================
   VISIT SECTION
   ====================================== */
.visit {
    background: var(--bg-primary);
}

.visit-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.visit-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 35px 25px;
    text-align: center;
    transition: var(--transition);
}

.visit-card:hover {
    border-color: var(--accent-blue);
    box-shadow: var(--shadow-glow);
    transform: translateY(-5px);
}

.visit-card > i {
    font-size: 2rem;
    color: var(--accent-blue);
    margin-bottom: 15px;
}

.visit-card h3 {
    font-size: 1.05rem;
    margin-bottom: 12px;
}

.visit-card p {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 4px;
}

/* ======================================
   SUBSCRIBE SECTION
   ====================================== */
.subscribe {
    padding: 0;
}

.subscribe-bg {
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.1) 0%, rgba(255, 107, 53, 0.1) 100%);
    border-top: 1px solid var(--border-glow);
    border-bottom: 1px solid var(--border-glow);
    padding: 80px 0;
}

.subscribe-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.subscribe-content h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.subscribe-content p {
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.7;
}

.subscribe-form .form-group {
    display: flex;
    gap: 10px;
    max-width: 500px;
    margin: 0 auto;
}

.subscribe-form input {
    flex: 1;
    padding: 14px 20px;
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-xl);
    background: var(--bg-card);
    color: var(--text-primary);
    font-family: var(--font-primary);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition);
}

.subscribe-form input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px var(--accent-glow);
}

.subscribe-form input::placeholder {
    color: var(--text-muted);
}

/* ======================================
   FOOTER
   ====================================== */
.footer {
    background: var(--bg-secondary);
    padding: 80px 0 30px;
    border-top: 1px solid var(--border-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.footer-about p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
}

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

.footer-social a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--accent-blue);
    color: #000;
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px var(--accent-glow);
}

.footer-links h3,
.footer-contact h3,
.footer-hours h3 {
    font-size: 1rem;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.footer-links ul li,
.footer-contact ul li,
.footer-hours ul li {
    margin-bottom: 10px;
}

.footer-links a,
.footer-contact a {
    color: var(--text-secondary);
    font-size: 0.88rem;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--accent-blue);
}

.footer-contact li {
    color: var(--text-secondary);
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent-blue);
    width: 16px;
    flex-shrink: 0;
}

.footer-hours li {
    color: var(--text-secondary);
    font-size: 0.88rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

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

.footer-proudly {
    margin-top: 5px;
}

.footer-proudly strong {
    color: var(--accent-blue);
}

/* ======================================
   BACK TO TOP
   ====================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    border: none;
    color: #000;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

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

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

.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ======================================
   RESPONSIVE
   ====================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 2.8rem;
    }

    .hero-info-cards {
        grid-template-columns: repeat(2, 1fr);
        bottom: 20px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .values-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .concept-item,
    .concept-item.reverse {
        grid-template-columns: 1fr;
        direction: ltr;
    }

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

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

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

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

    .plan-cards {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

    .section-title {
        font-size: 2.2rem;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 10, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        transition: var(--transition);
        border-left: 1px solid var(--border-glow);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        font-size: 1rem;
        padding: 8px 0;
    }

    .hero-title {
        font-size: 2rem;
        letter-spacing: 2px;
    }

    .hero-subtitle {
        font-size: 0.95rem;
    }

    .hero-info-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .info-card {
        padding: 20px 15px;
    }

    .scroll-indicator {
        display: none;
    }

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

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

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

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

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

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

    .plan-cards {
        grid-template-columns: 1fr;
    }

    .plan-card.featured {
        transform: none;
    }

    .plan-card.featured:hover {
        transform: translateY(-5px);
    }

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

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

    .section {
        padding: 70px 0;
    }

    .section-title {
        font-size: 1.8rem;
    }

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

    .always-open h2 {
        font-size: 1rem;
    }

    .subscribe-form .form-group {
        flex-direction: column;
    }

    .topbar {
        font-size: 0.7rem;
        letter-spacing: 1px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.6rem;
    }

    .hero-info-cards {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .info-card h3 {
        font-size: 0.85rem;
    }

    .info-card p {
        font-size: 0.75rem;
    }

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