/* =========================================
   VARIABLES
   ========================================= */
:root {
    --bg-base: #101010;
    --panel-bg: #151515;
    
    /* Elegant Champagne Gold */
    --gold: #dfccab;
    --gold-hover: #f3e0c0;
    --text-primary: #ededed;
    --text-muted: #888888;
    
    --font-serif: 'Lora', serif;
    --font-sans: 'Inter', sans-serif;
    
    --border-glass: rgba(223, 204, 171, 0.15);
    --border-glass-hover: rgba(223, 204, 171, 0.4);
    --bg-glass: rgba(20, 20, 20, 0.65);
    
    --radius-lg: 20px;
    --radius-pill: 100px;
    
    --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

/* =========================================
   RESET & BASICS
   ========================================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: var(--bg-base);
    color: var(--text-primary);
    font-family: var(--font-sans);
    height: 100vh;
    overflow: hidden; /* Desktop split screen locks scrolling */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* =========================================
   LAYOUT
   ========================================= */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    padding: 1.5rem;
    gap: 1.5rem;
}

/* =========================================
   LEFT: HERO PANEL
   ========================================= */
.hero-panel {
    position: relative;
    width: 60%;
    height: 100%;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background-color: var(--panel-bg);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2.5rem;
}

/* Hero Background */
.video-container {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.hero-media {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 12s ease;
}

.hero-panel:hover .hero-media {
    transform: scale(1.03);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(16,16,16,0.9) 0%, rgba(16,16,16,0.3) 50%, rgba(16,16,16,0.6) 100%);
}

/* Navigation Pill */
.pill-nav {
    position: relative;
    z-index: 10;
    display: inline-flex;
    align-items: center;
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-glass);
    padding: 0.6rem 1.5rem 0.6rem 0.6rem;
    border-radius: var(--radius-pill);
    align-self: flex-start;
    gap: 1.5rem;
}

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

.brand-icon {
    color: var(--gold);
    width: 20px;
    height: 20px;
    margin-left: 0.5rem;
}

.menu-btn {
    background: transparent;
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: none; /* HIDDEN ON DESKTOP */
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.menu-btn span {
    display: block;
    width: 16px;
    height: 1px;
    background-color: var(--gold);
    transition: var(--transition-smooth);
}

.menu-btn:hover {
    border-color: var(--gold);
    background: rgba(223, 204, 171, 0.1);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 500;
    letter-spacing: 2px;
    transition: color 0.3s ease;
}

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

/* Bottom Hero Content */
.hero-content {
    position: relative;
    z-index: 10;
    margin-top: auto;
    margin-bottom: 2rem;
}

.brand-title {
    font-family: var(--font-serif);
    font-size: clamp(4rem, 8vw, 7.5rem);
    font-weight: 400;
    color: var(--gold);
    line-height: 1;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    text-shadow: 0 4px 12px rgba(0,0,0,0.5);
}

.brand-tagline {
    font-family: var(--font-sans);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 300;
    letter-spacing: 1px;
    opacity: 0.9;
}

.hero-footer {
    position: absolute;
    bottom: 2.5rem;
    right: 2.5rem;
    z-index: 10;
    display: flex;
    gap: 1rem;
}

.social-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--bg-glass);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.social-btn:hover {
    color: var(--gold);
    border-color: var(--gold);
    transform: translateY(-2px);
}

.social-btn i {
    width: 16px;
    height: 16px;
}

/* =========================================
   RIGHT: DIRECTORY BENTO BOX
   ========================================= */
.directory-panel {
    width: 40%;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.directory-card {
    position: relative;
    flex: 1;
    border-radius: var(--radius-lg);
    overflow: hidden;
    text-decoration: none;
    display: flex;
    padding: 2rem;
    background-color: var(--panel-bg);
    border: 1px solid var(--border-glass);
    transition: var(--transition-smooth);
}

/* Card Backgrounds */
.card-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    background-image: url('../assets/hero_main.jpg');
    background-size: cover;
    background-position: center;
    transition: transform 0.8s ease;
    z-index: 1;
}

.card-1 .card-bg { background-position: top; filter: grayscale(80%) sepia(20%) hue-rotate(10deg) brightness(0.6); }
.card-2 .card-bg { background-position: center; filter: grayscale(90%) brightness(0.5); }
.card-3 .card-bg { background-position: bottom; filter: sepia(40%) hue-rotate(340deg) brightness(0.4); }
.card-4 .card-bg { background-position: left; filter: grayscale(100%) brightness(0.4); }

.card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(16,16,16,0.8) 0%, rgba(16,16,16,0.4) 100%);
    z-index: 2;
    transition: opacity 0.5s ease;
}

.directory-card:hover {
    border-color: var(--border-glass-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0,0,0,0.5);
}

.directory-card:hover .card-bg {
    transform: scale(1.05);
}

.directory-card:hover .card-overlay {
    opacity: 0.7;
}

.card-content {
    position: relative;
    z-index: 3;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.card-meta {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.dept-index {
    font-family: var(--font-sans);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 2px;
    color: var(--gold);
    opacity: 0.8;
}

.dept-name {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--text-primary);
    transition: color 0.3s;
}

.directory-card:hover .dept-name {
    color: var(--gold);
}

.arrow-container {
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: var(--bg-glass);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-primary);
    transition: var(--transition-smooth);
}

.directory-card:hover .arrow-container {
    background: var(--gold);
    color: var(--bg-base);
    border-color: var(--gold);
    transform: translateX(5px) scale(1.05);
}

.arrow-icon {
    width: 20px;
    height: 20px;
}

/* =========================================
   RESPONSIVE DESIGN & MOBILE MENU
   ========================================= */

/* Tablet & Mobile Dropdown Transition */
@media (max-width: 850px) {
    .dept-name {
        font-size: 1.5rem; /* Scales down slightly */
    }

    .pill-nav {
        flex-direction: column;
        align-items: flex-start;
        padding: 0;
        background: transparent;
        border: none;
        backdrop-filter: none;
        -webkit-backdrop-filter: none;
    }
    
    .nav-header {
        background: var(--bg-glass);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-pill);
        padding: 0.6rem 0.6rem 0.6rem 1.5rem;
        display: flex;
        align-items: center;
        width: auto;
        gap: 1.5rem;
    }

    .menu-btn {
        display: flex; /* Show hamburger below 850px */
    }

    .nav-links {
        display: none; /* Hide horizontal links by default */
        flex-direction: column;
        align-items: flex-start;
        background: var(--bg-glass);
        backdrop-filter: blur(12px);
        -webkit-backdrop-filter: blur(12px);
        border: 1px solid var(--border-glass);
        border-radius: var(--radius-lg);
        padding: 1.5rem 1.5rem 1.5rem 2.5rem;
        margin-top: 0.5rem;
        gap: 1.5rem;
    }

    /* JavaScript Toggle Class */
    .nav-links.nav-active {
        display: flex;
        animation: dropDown 0.3s ease forwards;
    }
    
    /* Make the links larger on mobile to tap easily */
    .nav-link {
        font-size: 0.9rem;
    }
}

@keyframes dropDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Extreme Mobile (Phones) */
@media (max-width: 600px) {
    .app-container {
        flex-direction: column;
        height: auto;
        padding: 1rem;
    }
    
    body {
        height: auto;
        overflow-y: auto;
    }
    
    .hero-panel {
        width: 100%;
        height: 60vh;
        min-height: 500px;
        padding: 1.5rem; /* Less padding on absolute mobile */
    }
    
    .directory-panel {
        width: 100%;
        height: auto;
    }
    
    .directory-card {
        aspect-ratio: auto;
        min-height: 180px;
        padding: 1.5rem;
    }

    /* FIX 1: Prevent title from cutting off on tiny screens */
    .brand-title {
        font-size: clamp(2.5rem, 13vw, 3.5rem);
    }

    /* FIX 2: Stop socials from covering the tagline on mobile */
    .hero-footer {
        position: relative;
        bottom: 0;
        right: 0;
        margin-top: 1.5rem;
        justify-content: flex-start; /* Aligns them nicely under the text */
    }
    
    .hero-content {
        margin-bottom: 0; /* Clear spacing since socials are now relative */
    }
    
    .dept-name {
        font-size: 1.25rem;
    }
}