/* Fonts loaded via <link> in HTML head for faster non-blocking delivery */

:root {
    --primary-color: #0a0a0a;
    /* Almost black */
    --secondary-color: #ffffff;
    --accent-color: #D32F2F;
    /* Deep Red */
    --text-color: #e0e0e0;
    /* Off-white for dark mode feel */
    --text-dark: #333333;
    --bg-dark: #111111;
    --bg-light: #f9f9f9;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Lato', sans-serif;
    --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

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

body {
    font-family: var(--font-body);
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--secondary-color);
    overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

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

/* --- Navigation --- */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    padding: 1.5rem 0;
    background: transparent;
}

header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--secondary-color);
    /* White initially */
    letter-spacing: 2px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 50px;
    width: auto;
}

header.scrolled .logo {
    color: var(--primary-color);
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: 3rem;
}

.nav-links li a {
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    position: relative;
}

header.scrolled .nav-links li a {
    color: var(--primary-color);
}

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

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

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 30px;
    height: 2px;
    margin: 6px auto;
    background-color: var(--secondary-color);
    transition: var(--transition);
}

header.scrolled .bar {
    background-color: var(--primary-color);
}

/* Keep header text white on pages that have a dark header (inline style or `.dark` class) */
header.dark,
header[style*="#0a0a0a"] {
    background: var(--primary-color);
}

header.dark .logo,
header[style*="#0a0a0a"] .logo,
header.dark .nav-links li a,
header[style*="#0a0a0a"] .nav-links li a {
    color: var(--secondary-color);
}

header.dark.scrolled,
header[style*="#0a0a0a"].scrolled {
    background: rgba(10, 10, 10, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

header.dark.scrolled .logo,
header[style*="#0a0a0a"].scrolled .logo,
header.dark.scrolled .nav-links li a,
header[style*="#0a0a0a"].scrolled .nav-links li a {
    color: var(--secondary-color);
}

header.dark .bar,
header[style*="#0a0a0a"] .bar,
header.dark.scrolled .bar,
header[style*="#0a0a0a"].scrolled .bar {
    background-color: var(--secondary-color);
}

header.dark .hamburger.active .bar,
header[style*="#0a0a0a"] .hamburger.active .bar {
    background-color: var(--secondary-color);
}

/* --- Sections --- */
section {
    padding: 3rem 0;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 5rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 15px auto 0;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 1rem 3rem;
    background: transparent;
    color: var(--secondary-color);
    border: 2px solid var(--secondary-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background: var(--secondary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

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

.btn-primary:hover {
    background: #b71c1c;
    border-color: #b71c1c;
    color: var(--secondary-color);
}

/* --- Footer --- */
footer {
    background: var(--primary-color);
    color: #888;
    padding: 5rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-section h3 {
    color: var(--secondary-color);
    font-size: 1.2rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid #333;
    padding-bottom: 1rem;
    display: inline-block;
}

.footer-section ul li {
    margin-bottom: 1rem;
}

.footer-explore-grid {
    display: grid;
    grid-template-columns: repeat(2, max-content);
    gap: 0 3rem;
    list-style: none;
    padding: 0;
}

.footer-section ul li a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #222;
    font-size: 0.9rem;
}

/* --- Animations --- */
@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.fade-in-section {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, visibility;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: none;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .hamburger {
        display: block;
        z-index: 1001;
    }

    .hamburger.active .bar {
        background-color: var(--primary-color);
    }

    .hamburger.active .bar:nth-child(2) {
        opacity: 0;
    }

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

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

    .nav-links {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        width: 100%;
        background: var(--primary-color);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2rem;
        transform: translateX(100%);
        transition: transform 0.4s ease-in-out;
        z-index: 1000;
    }

    .nav-links.active {
        transform: translateX(0);
    }

    .nav-links li a {
        color: var(--secondary-color) !important;
        font-size: 1.5rem;
    }

    .hamburger.active .bar {
        background-color: var(--secondary-color) !important;
    }

    header.nav-active .logo {
        color: var(--secondary-color) !important;
    }

    .page-header h1 {
        font-size: 2rem !important;
    }
}