/* ==============================================
   GLOBAL STYLES - Zeta Travels
   Shared styles across all pages
   ============================================== */

/* CSS Variables */
:root {
    --brand-primary: #0f172a;
    --brand-accent: #f59e0b;
}

/* Base Styles */
html,
body {
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    color: var(--brand-primary);
    background-color: #ffffff;
    overflow-x: clip;
    letter-spacing: -0.01em;
}

.font-display {
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* ==============================================
   NAVBAR STYLES - CSS Based Scroll Effect
   ============================================== */

/* Default state (transparent, for hero) */
#main-nav {
    background: transparent;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: clamp(0.5rem, 2vh, 1rem) 0;
}

#main-nav .logo-text {
    color: white;
    transition: color 0.3s ease;
    font-size: clamp(1.25rem, 4vw, 1.5rem);
    letter-spacing: -0.025em;
}

#main-nav .logo-subtitle {
    color: rgba(255, 255, 255, 0.6);
    transition: color 0.3s ease;
    font-size: clamp(0.55rem, 1.5vw, 0.65rem);
    letter-spacing: 0.3em;
}

#main-nav .nav-link {
    color: rgba(255, 255, 255, 0.8);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 0.625rem clamp(1rem, 2vw, 1.5rem);
    font-size: clamp(0.8rem, 1.2vw, 0.875rem);
}

#main-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0.5rem;
    left: clamp(1rem, 2vw, 1.5rem);
    right: clamp(1rem, 2vw, 1.5rem);
    height: 2px;
    background: var(--brand-accent);
    transform: scaleX(0);
    transition: transform 0.3s ease;
    transform-origin: right;
}

#main-nav .nav-link:hover {
    color: white;
}

#main-nav .nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

#main-nav .nav-link.active {
    color: white;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

#main-nav .nav-link.active::after {
    transform: scaleX(1);
}

#main-nav .nav-container {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.4s ease;
}

#main-nav .hamburger-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

#main-nav .hamburger-line {
    background: white;
}

/* Scrolled state (Solid White & Slim) */
#main-nav.scrolled {
    background: #ffffff;
    box-shadow: 0 10px 40px -10px rgba(0, 0, 0, 0.08);
    padding: 0;
    border-bottom: 1px solid #f1f5f9;
}

#main-nav.scrolled .flex.justify-between.items-center {
    height: 70px;
    /* Reduced height for slim look */
}

#main-nav.scrolled .logo-text {
    color: #0f172a;
}

#main-nav.scrolled .logo-subtitle {
    color: #64748b;
}

#main-nav.scrolled .nav-link {
    color: #475569;
}

#main-nav.scrolled .nav-link:hover {
    color: #0f172a;
}

#main-nav.scrolled .nav-link.active {
    color: #92400e;
    background: #fffbeb;
    border: 1px solid #fef3c7;
}

#main-nav.scrolled .nav-container {
    background: rgba(15, 23, 42, 0.03);
    border-color: rgba(15, 23, 42, 0.05);
}

#main-nav.scrolled .hamburger-btn {
    background: white;
    border-color: #e2e8f0;
}

#main-nav.scrolled .hamburger-line {
    background: #0f172a;
}

/* Dark Theme (Transparent state on light pages) */
#main-nav.theme-dark:not(.scrolled) .logo-text {
    color: #0f172a;
}

#main-nav.theme-dark:not(.scrolled) .logo-subtitle {
    color: #64748b;
}

#main-nav.theme-dark:not(.scrolled) .nav-link {
    color: #475569;
}

#main-nav.theme-dark:not(.scrolled) .nav-link:hover {
    color: #0f172a;
}

#main-nav.theme-dark:not(.scrolled) .nav-link.active {
    color: #92400e;
    background: rgba(15, 23, 42, 0.05);
}

#main-nav.theme-dark:not(.scrolled) .nav-container {
    background: rgba(15, 23, 42, 0.03);
    border-color: rgba(15, 23, 42, 0.08);
}

#main-nav.theme-dark:not(.scrolled) .hamburger-btn {
    background: rgba(15, 23, 42, 0.03);
    border-color: rgba(15, 23, 42, 0.08);
}

#main-nav.theme-dark:not(.scrolled) .hamburger-line {
    background: #475569;
}

/* Nav link pill styles */
.nav-link {
    border-radius: 9999px;
    font-weight: 600;
}

/* ==============================================
   UTILITY STYLES
   ============================================== */

.hero-text-shadow {
    text-shadow: 0 4px 60px rgba(0, 0, 0, 0.5);
}

.package-card {
    transition: all 0.35s ease;
    border: 1px solid #e2e8f0;
    position: relative;
}

.package-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.12);
}

.package-card .package-image {
    transition: transform 0.5s ease;
}

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

.custom-shadow {
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.fade-in-up {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
    transform: translateY(20px);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==============================================
   MOBILE MENU
   ============================================== */

.mobile-menu {
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open {
    transform: translateX(0);
}

.mobile-overlay {
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.mobile-overlay.open {
    opacity: 1;
    visibility: visible;
}

/* Hamburger Animation */
.hamburger-line {
    transition: all 0.3s ease;
    transform-origin: center;
}

.hamburger-btn.active .hamburger-line:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger-btn.active .hamburger-line:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.hamburger-btn.active .hamburger-line:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* ==============================================
   ANIMATION UTILITIES
   ============================================== */

@keyframes marquee {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

.animate-marquee {
    animation: marquee 40s linear infinite;
}

.animate-marquee:hover {
    animation-play-state: paused;
}

/* ==============================================
   CUSTOM SCROLLBAR
   ============================================== */

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 99px;
    transition: background 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Firefox */
html {
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
}