/* -------------------------------------------------------------
   ADVENTURE AWAITS - MODERN DESIGN SYSTEM & STYLESHEET
------------------------------------------------------------- */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@500;600;700;800;900&display=swap');

:root {
    /* Color Palette */
    --bg-main: #061510;
    --bg-surface: #0b221a;
    --bg-surface-elevated: #113126;
    --bg-glass: rgba(11, 34, 26, 0.75);
    --border-glass: rgba(16, 185, 129, 0.2);
    
    --primary: #10B981;
    --primary-hover: #059669;
    --primary-glow: rgba(16, 185, 129, 0.4);
    
    --accent: #F59E0B;
    --accent-hover: #D97706;
    
    --text-main: #F9FAFB;
    --text-muted: #9CA3AF;
    --text-dark: #111827;
    
    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    /* Shadows & Effects */
    --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --glow-emerald: 0 0 25px rgba(16, 185, 129, 0.25);
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-full: 9999px;
    
    --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-main);
    line-height: 1.25;
}

a {
    color: inherit;
    text-decoration: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    outline: none;
}

.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section-padding {
    padding: 5rem 0;
}

.text-gradient {
    background: linear-gradient(135deg, #A7F3D0 0%, #10B981 50%, #F59E0B 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Section Titles */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3.5rem auto;
}

.section-subtitle {
    display: inline-block;
    padding: 0.35rem 1rem;
    background: rgba(16, 185, 129, 0.15);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--primary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* -------------------------------------------------------------
   HEADER & NAVBAR
------------------------------------------------------------- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-fast);
    padding: 1.25rem 0;
}

.header.scrolled {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-glass);
    padding: 0.85rem 0;
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-main);
    font-size: 1.25rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    font-weight: 500;
    color: var(--text-muted);
    transition: var(--transition-fast);
    position: relative;
    padding: 0.25rem 0;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--primary);
    border-radius: 2px;
}

.header-cta {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition-smooth);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), #059669);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.45);
}

.btn-accent {
    background: linear-gradient(135deg, var(--accent), #D97706);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(245, 158, 11, 0.45);
}

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

.btn-outline:hover {
    background: rgba(16, 185, 129, 0.1);
    border-color: var(--primary);
}

.mobile-toggle {
    display: none;
    font-size: 1.5rem;
    color: var(--text-main);
    background: none;
}

/* -------------------------------------------------------------
   HERO SECTION
------------------------------------------------------------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 6rem;
    overflow: hidden;
    background: radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 20% 80%, rgba(245, 158, 11, 0.1) 0%, transparent 50%);
}

.hero-bg-overlay {
    position: absolute;
    inset: 0;
    background: url('https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?auto=format&fit=crop&w=2000&q=80') center/cover no-repeat;
    opacity: 0.18;
    filter: saturate(1.2);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-full);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.hero-badge i {
    color: var(--accent);
}

.hero-title {
    font-size: 3.75rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 1.25rem;
    letter-spacing: -1px;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 650px;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--primary);
}

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

/* -------------------------------------------------------------
   UPCOMING TREKS (DYNAMIC)
------------------------------------------------------------- */
.search-filter-bar {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
    margin-bottom: 2.5rem;
    box-shadow: var(--shadow-sm);
}

.search-input-group {
    flex: 1;
    min-width: 250px;
    position: relative;
}

.search-input-group i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem 0.75rem 2.75rem;
    background: var(--bg-main);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.95rem;
}

.search-input:focus {
    border-color: var(--primary);
    outline: none;
}

.filter-select {
    padding: 0.75rem 1.25rem;
    background: var(--bg-main);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.95rem;
    cursor: pointer;
}

.treks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.trek-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    position: relative;
}

.trek-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--glow-emerald);
}

.trek-image-wrapper {
    position: relative;
    height: 220px;
    overflow: hidden;
}

.trek-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.trek-card:hover .trek-image {
    transform: scale(1.08);
}

.trek-badge {
    position: absolute;
    top: 1rem;
    left: 1rem;
    background: var(--accent);
    color: #000;
    font-weight: 700;
    font-size: 0.75rem;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.trek-difficulty {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    color: #fff;
    font-size: 0.8rem;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.trek-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.trek-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.trek-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.trek-meta-item {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

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

.trek-dates-badge {
    background: rgba(16, 185, 129, 0.1);
    border: 1px dashed var(--primary);
    color: var(--primary);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.trek-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.price-box {
    display: flex;
    flex-direction: column;
}

.price-original {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-decoration: line-through;
}

.price-current {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

/* -------------------------------------------------------------
   GALLERY SECTION (DYNAMIC)
------------------------------------------------------------- */
.gallery-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2.5rem;
}

.filter-btn {
    padding: 0.6rem 1.25rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-full);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    height: 260px;
    cursor: pointer;
    border: 1px solid var(--border-glass);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover img {
    transform: scale(1.1);
}

.gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, transparent 60%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.25rem;
    opacity: 0;
    transition: var(--transition-fast);
}

.gallery-item:hover .gallery-overlay {
    opacity: 1;
}

.gallery-title {
    font-size: 1.1rem;
    font-weight: 700;
}

.gallery-location {
    font-size: 0.85rem;
    color: var(--primary);
}

/* -------------------------------------------------------------
   REVIEWS & TESTIMONIALS (DYNAMIC)
------------------------------------------------------------- */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.review-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: var(--transition-smooth);
}

.review-card:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.stars {
    color: var(--accent);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.review-text {
    color: var(--text-muted);
    font-size: 0.98rem;
    font-style: italic;
    margin-bottom: 1.5rem;
}

.review-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary);
}

.author-info h4 {
    font-size: 1rem;
    font-weight: 700;
}

.author-info p {
    font-size: 0.85rem;
    color: var(--primary);
}

/* -------------------------------------------------------------
   WHY CHOOSE US / FEATURES
------------------------------------------------------------- */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    transition: var(--transition-fast);
}

.feature-card:hover {
    background: var(--bg-surface-elevated);
    border-color: var(--primary);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(16, 185, 129, 0.15);
    color: var(--primary);
    font-size: 1.75rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem auto;
}

/* -------------------------------------------------------------
   MODAL DIALOG (ITINERARY & LIGHTBOX)
------------------------------------------------------------- */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-backdrop.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 850px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform 0.3s ease;
}

.modal-backdrop.active .modal-container {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    width: 36px;
    height: 36px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition-fast);
    z-index: 10;
}

.modal-close-btn:hover {
    background: #ef4444;
}

.modal-hero-img {
    height: 250px;
    width: 100%;
    object-fit: cover;
}

.modal-body {
    padding: 2rem;
}

.itinerary-timeline {
    margin-top: 1.5rem;
    border-left: 2px solid var(--primary);
    padding-left: 1.5rem;
}

.itinerary-day-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.itinerary-day-item::before {
    content: '';
    position: absolute;
    left: -2.1rem;
    top: 0.25rem;
    width: 14px;
    height: 14px;
    background: var(--primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary);
}

.day-badge {
    color: var(--primary);
    font-weight: 700;
    font-size: 0.9rem;
}

/* -------------------------------------------------------------
   FLOATING WHATSAPP & FOOTER
------------------------------------------------------------- */
.floating-whatsapp {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition-smooth);
}

.floating-whatsapp:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 30px rgba(37, 211, 102, 0.6);
}

.footer {
    background: var(--bg-surface);
    border-top: 1px solid var(--border-glass);
    padding: 4rem 0 2rem 0;
    margin-top: 4rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    color: var(--text-muted);
    margin: 1rem 0;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: var(--primary);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-muted);
    transition: var(--transition-fast);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
    .hero-title {
        font-size: 2.75rem;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .mobile-toggle {
        display: block;
    }
    .hero-title {
        font-size: 2.25rem;
    }
    .hero-stats {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
    }
}