/* =========================================
   1. VARIABLES & RESET
   ========================================= */
:root {
    /* Color Palette */
    --color-black: #000000;
    --color-charcoal: #111111;
    --color-gold-primary: #D4AF37;
    --color-gold-hover: #E5C158;
    --color-off-white: #F5F5F5;
    --color-grey: #888888;

    /* Typography */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 32px;
    --spacing-lg: 64px;
    --spacing-xl: 96px;

    /* Layout */
    --container-width: 1200px;
    --header-height: 80px;
    --border-radius: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color-black);
    color: var(--color-off-white);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3 {
    font-family: var(--font-heading);
    color: var(--color-gold-primary);
    font-weight: 700;
    line-height: 1.2;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s ease;
}

ul {
    list-style: none;
}

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

/* =========================================
   2. UTILITY CLASSES
   ========================================= */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
}

.section {
    padding: var(--spacing-lg) 0;
}

.section__title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--color-gold-primary);
}

/* Glassmorphism Card Style */
.card {
    background: rgba(212, 175, 55, 0.05);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.card:hover {
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateY(-5px);
}

.card__title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-off-white);
}

.card__description {
    color: var(--color-grey);
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

/* =========================================
   3. HEADER & NAV
   ========================================= */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    display: flex;
    align-items: center;
    transition: background-color 0.3s ease, padding 0.3s ease;
    width: 100%;
}

.header.scrolled {
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

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

.header__logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-gold-primary);
    font-weight: 700;
}

/* Desktop Nav (Hidden on Mobile) */
.nav {
    display: none;
}

/* Hamburger Menu */
.hamburger {
    background: none;
    border: none;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: 6px;
    z-index: 1002;
}

.hamburger__line {
    width: 25px;
    height: 2px;
    background-color: var(--color-gold-primary);
    transition: all 0.3s ease;
}

/* Hamburger Animation State */
.hamburger.active .hamburger__line:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

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

.hamburger.active .hamburger__line:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Nav Overlay */
.mobile-nav {
    position: fixed;
    inset: 0;
    background-color: var(--color-black);
    display: flex;
    align-items: center;
    justify-content: center;
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.77, 0, 0.175, 1);
    z-index: 1001;
}

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

.mobile-nav__list {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-nav__link {
    font-family: var(--font-heading);
    font-size: 2rem;
    color: var(--color-off-white);
}

.mobile-nav__link:hover {
    color: var(--color-gold-primary);
}

.mobile-nav__cta {
    display: inline-block;
    margin-top: var(--spacing-sm);
    padding: 12px 24px;
    border: 1px solid var(--color-gold-primary);
    color: var(--color-gold-primary);
    border-radius: 4px;
    font-weight: 600;
}

/* =========================================
   4. HERO SECTION
   ========================================= */
.hero {
    min-height: calc(100vh - var(--header-height));
    display: flex;
    align-items: center;
    padding: var(--spacing-lg) 0;
}

.hero__container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-md);
}

.hero__image-wrapper {
    position: relative;
    width: 200px;
    height: 200px;
}

.hero__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    /* Gold Aura Glow */
    box-shadow: 0 0 25px rgba(212, 175, 55, 0.25), 0 0 50px rgba(212, 175, 55, 0.1);
    border: 2px solid rgba(212, 175, 55, 0.3);
}

.hero__title {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--color-grey);
    max-width: 600px;
}

/* =========================================
   5. PROJECTS SECTION
   ========================================= */
.projects__grid {
    display: grid;
    gap: var(--spacing-md);
    grid-template-columns: 1fr;
}

.project-card {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    overflow: hidden;
}

.project-card__image-container {
    width: 100%;
    height: 200px;
    border-radius: 8px;
    overflow: hidden;
}

.project-card__placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
}

.project-card__content {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.card__link {
    display: inline-flex;
    align-items: center;
    font-weight: 600;
    color: var(--color-gold-primary);
    font-size: 0.9rem;
}

.card__link:hover {
    color: var(--color-gold-hover);
    text-decoration: underline;
}

/* =========================================
   6. ABOUT SECTION
   ========================================= */
.about__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

/* =========================================
   7. FOOTER
   ========================================= */
.footer {
    padding: var(--spacing-md) 0;
    text-align: center;
    color: var(--color-grey);
    font-size: 0.9rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: var(--spacing-lg);
}

/* =========================================
   8. MEDIA QUERIES (RESPONSIVENESS)
   ========================================= */

/* Tablet & Desktop */
@media (min-width: 768px) {

    /* Header */
    .hamburger,
    .mobile-nav {
        display: none;
    }

    .nav {
        display: block;
    }

    .nav__list {
        display: flex;
        gap: var(--spacing-md);
    }

    .nav__link {
        font-family: var(--font-body);
        font-size: 1rem;
        font-weight: 600;
        color: var(--color-off-white);
    }

    .nav__link:hover {
        color: var(--color-gold-primary);
    }

    /* Hero */
    .hero__container {
        flex-direction: row-reverse;
        justify-content: center;
        text-align: left;
        gap: var(--spacing-xl);
    }

    .hero__image-wrapper {
        width: 350px;
        height: 350px;
    }

    .hero__title {
        font-size: 4rem;
    }

    .hero__subtitle {
        font-size: 1.25rem;
    }

    /* Projects */
    .project-card {
        flex-direction: row;
        align-items: center;
    }

    .project-card__image-container {
        width: 40%;
        height: 250px;
    }

    .project-card__content {
        width: 60%;
        padding-left: var(--spacing-sm);
    }

    /* About */
    .about__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}