/* 
    Kopa Beach Bar - Design System
    Colors: 
    - Deep Ocean: #0a192f
    - Golden Sand: #e6b17a
    - Sunset Pink: #f08a5d
    - Pure White: #ffffff
    - Soft Grey: #f4f4f4
*/

:root {
    --primary: #e6b17a;
    --secondary: #0a192f;
    --accent: #f08a5d;
    --white: #ffffff;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --bg-light: #fafafa;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --container: 1200px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Plus Jakarta Sans', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: var(--bg-light);
    overflow-x: hidden;
}

h1, h2, h3, h4, .logo {
    font-family: 'Playfair Display', serif;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4rem;
    align-items: center;
}

.section-padding {
    padding: 10rem 0;
}

.text-center { text-align: center; }
.mb-2 { margin-bottom: 2rem; }
.mt-4 { margin-top: 4rem; }
.w-full { width: 100%; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 1.2rem 2.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--secondary);
}

.btn-primary:hover {
    background: var(--secondary);
    color: var(--primary);
    transform: translateY(-5px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--secondary);
}

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--secondary);
}

.btn-outline:hover {
    background: var(--primary);
}

.btn-text {
    padding: 0;
    color: var(--primary);
    font-weight: 700;
}

/* Header & Nav */
#main-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 2rem 0;
    transition: var(--transition);
}

#main-header.scrolled {
    background: var(--secondary);
    padding: 1.2rem 0;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--white);
}

.logo span {
    font-size: 0.9rem;
    font-family: 'Plus Jakarta Sans', sans-serif;
    font-weight: 400;
    opacity: 0.8;
}

.nav-links {
    display: flex;
    gap: 3rem;
}

.nav-links a {
    color: var(--white);
    font-weight: 500;
    font-size: 0.9rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

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

/* Hero Section */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(10, 25, 47, 0.4), rgba(10, 25, 47, 0.7)), url('assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    color: var(--white);
    position: relative;
}

.hero-content h1 {
    font-size: 5rem;
    line-height: 1.1;
    margin-bottom: 2rem;
}

.hero-content h1 span {
    color: var(--primary);
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 600px;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.hero-btns {
    display: flex;
    gap: 1.5rem;
}

/* Sections General */
.sub-heading {
    display: block;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 4px;
    font-weight: 700;
    font-size: 0.8rem;
    margin-bottom: 1rem;
}

h2 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 2rem;
}

/* About */
.about-image {
    position: relative;
}

.about-image img {
    border-radius: 10px;
    box-shadow: 20px 20px 0 var(--primary);
}

/* Menu Card Style */
.menu-image-container {
    max-width: 800px;
    margin: 0 auto;
}

.menu-card {
    position: relative;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 30px 60px rgba(0,0,0,0.1);
    background: var(--white);
    transition: var(--transition);
}

.menu-card:hover {
    transform: translateY(-10px);
}

.menu-display {
    width: 100%;
    height: auto;
    display: block;
}

.menu-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 47, 0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.menu-card:hover .menu-overlay {
    opacity: 1;
}
.menu {
    background: #fdfaf6;
}

/* Gallery */
.gallery {
    padding: 0;
    overflow: hidden;
}

.gallery-track {
    display: flex;
    width: 200%;
    animation: scrollGallery 40s linear infinite;
}

.gallery-item {
    width: 25%;
    flex-shrink: 0;
    aspect-ratio: 16/9;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(1);
    transition: var(--transition);
}

.gallery-item:hover img {
    filter: grayscale(0);
    transform: scale(1.05);
}

@keyframes scrollGallery {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* Contact */
.contact-list li {
    margin-bottom: 2rem;
}

.contact-form {
    background: var(--white);
    padding: 4rem;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.05);
}

.form-group {
    margin-bottom: 1.5rem;
}

input, textarea {
    width: 100%;
    padding: 1rem;
    border: 1px solid #eee;
    border-radius: 4px;
    font-family: inherit;
    background: #fcfcfc;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* Footer */
.footer {
    background: var(--secondary);
    color: var(--white);
    padding: 5rem 0;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
}

.social-links a {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.6;
}

.social-links a:hover {
    opacity: 1;
    color: var(--primary);
}

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 1s ease-out;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Mobile Nav */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 30px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
    transform-origin: center;
}

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

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

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

/* Responsive */
@media (max-width: 992px) {
    .grid, .menu-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    h2 { font-size: 2.5rem; }
    .hero-content h1 { font-size: 3.5rem; }
    
    .section-padding { padding: 6rem 0; }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--secondary);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .mobile-menu-btn {
        display: flex;
        position: relative;
        z-index: 1001;
    }
}