@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&family=Outfit:wght@300;400;700&display=swap');

:root {
    --bg-dark: #0a0a0c;
    --accent-primary: #6366f1; /* Default Indigo */
    --accent-turkish: #008290; /* Turkish Turquoise */
    --accent-arabic: #059669;  /* Arabic Emerald */
    --accent-chinese: #dc2626; /* Chinese Red */
    --accent-japanese: #f43f5e; /* Japanese Sakura */
    --accent-urdu: #15803d;    /* Urdu Dark Green */
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.1);
    
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow-x: hidden;
    line-height: 1.6;
    scroll-behavior: smooth;
}

body.show-intro {
    overflow: hidden; /* Lock scroll until transition */
}

body.main-active {
    overflow: auto;
}

h1, h2, h3 {
    font-family: 'Outfit', sans-serif;
}

/* --- Layout --- */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* --- Navigation (Sidebar - Pebble Style) --- */

nav {
    position: fixed;
    left: 0;
    top: 0;
    width: 120px; /* Thinner sidebar for large icons */
    height: 100vh;
    background: #08080a;
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    padding: 2rem 0;
    z-index: 1000;
    align-items: center;
}

.nav-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.logo {
    font-size: 0.8rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 2rem;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    color: var(--text-muted);
}

.nav-links {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.nav-links a {
    width: 75px;
    height: 75px;
    background: #1a1a1e;
    border-radius: 28px; /* Softer pebble shape */
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 
        inset 0 2px 4px rgba(255, 255, 255, 0.05),
        0 10px 20px rgba(0, 0, 0, 0.4);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 15px;
}

.icon-pebble {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: var(--transition);
}

.icon-pebble svg {
    width: 100%;
    height: 100%;
}

.nav-links a:hover .icon-pebble, .nav-links a.active .icon-pebble {
    color: #fff;
    transform: scale(1.1);
}

.nav-links a:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 
        0 15px 30px rgba(0, 0, 0, 0.6),
        0 0 20px var(--accent-primary);
    border-color: var(--accent-primary);
}

.nav-links a.active {
    background: var(--accent-primary);
    transform: scale(1.1);
    box-shadow: 0 0 30px var(--accent-primary);
    border-color: rgba(255, 255, 255, 0.2);
}

.nav-links a::after {
    content: attr(data-label);
    position: absolute;
    left: 100%;
    margin-left: 20px;
    background: var(--accent-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.8rem;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-links a:hover::after {
    opacity: 1;
    margin-left: 30px;
}

/* --- Intro Section --- */

.intro-section {
    position: fixed; /* Keep it fixed over the content */
    top: 0;
    left: 0;
    height: 100vh;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999; /* Highest possible */
    background: #0a0a0c url('tech_background_glassmorphism_1776841964395.png');
    background-size: cover;
    background-position: center;
    text-align: center;
    transition: transform 1s cubic-bezier(0.85, 0, 0.15, 1), opacity 0.5s ease;
}

.intro-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(10, 10, 12, 0.4) 0%, rgba(10, 10, 12, 0.9) 100%);
}

.intro-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
    max-width: 900px;
}

.hero-name {
    font-size: clamp(4rem, 15vw, 10rem);
    font-weight: 900;
    line-height: 1;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #fff 0%, var(--accent-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -4px;
    filter: drop-shadow(0 10px 30px rgba(0,0,0,0.5));
}

.intro-text {
    font-size: 1.5rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.4;
}

.intro-text strong {
    color: #fff;
    font-weight: 700;
}

.scroll-indicator {
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.scroll-indicator span {
    font-size: 0.9rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--text-muted);
}

.arrow-down {
    width: 30px;
    height: 30px;
    border-bottom: 3px solid var(--accent-primary);
    border-right: 3px solid var(--accent-primary);
    transform: rotate(45deg);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0) rotate(45deg);}
    40% {transform: translateY(-10px) rotate(45deg);}
    60% {transform: translateY(-5px) rotate(45deg);}
}

/* --- Main Content Adjustment --- */

nav {
    transform: translateX(-150px);
    transition: transform 0.8s cubic-bezier(0.85, 0, 0.15, 1);
}

main {
    margin-left: 120px;
    padding: 2rem;
    min-height: 100vh;
    opacity: 0;
    transition: opacity 1s ease;
}

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

.main-active main {
    opacity: 1;
}

.intro-hidden {
    transform: translateY(-100%);
    pointer-events: none;
}

footer {
    padding: 3rem 0;
    border-top: 1px solid var(--glass-border);
    margin-top: 4rem;
    text-align: center;
}

/* --- Hero Section --- */

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(rgba(10, 10, 12, 0.7), rgba(10, 10, 12, 0.7)), url('assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    text-align: center;
}

.hero-content h1 {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 800;
    margin-bottom: 1rem;
    letter-spacing: -2px;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* --- Updated Side-by-Side Layout --- */

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 450px; /* History (left) and Translator (right) */
    grid-template-rows: auto 1fr;
    gap: 2rem;
    height: calc(100vh - 4rem);
}

.translator-column {
    grid-column: 2;
    grid-row: 1 / 3;
}

.history-column {
    grid-column: 1;
    grid-row: 2;
    overflow-y: auto;
}

.hero-compact {
    grid-column: 1;
    grid-row: 1;
    padding: 2rem 0;
}

.history-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2.5rem;
    animation: fadeIn 0.8s ease-out;
    height: 100%;
}

.history-card h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--accent-primary);
}

.wiki-source {
    font-size: 0.8rem;
    color: var(--accent-primary);
    margin-bottom: 1.5rem;
    display: block;
    font-style: italic;
}

.history-content-text {
    font-size: 1.1rem;
    color: var(--text-main);
    line-height: 1.8;
}

.wiki-frame-container {
    width: 100%;
    height: 750px;
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    background: #fff;
    transition: var(--transition);
    opacity: 0;
}

.wiki-frame-container.loaded {
    opacity: 1;
}

.wiki-frame {
    width: 100%;
    height: 100%;
    border: none;
    /* Dark mode filter for Wikipedia */
    filter: invert(0.9) hue-rotate(180deg) brightness(1.1) contrast(1.1);
}

.wiki-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 50px; 
    background: var(--bg-dark);
    pointer-events: none;
}

.loading-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 6rem 0;
    gap: 1rem;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}
.translator-card {
    background: #111114;
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 2rem;
    height: 100%;
    display: flex;
    flex-direction: column;
}

/* --- Google Translate Styling --- */
#google_translate_element {
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
}

.goog-te-gadget-simple {
    background-color: transparent !important;
    border: none !important;
    font-family: 'Inter', sans-serif !important;
}

.goog-te-menu-value span {
    color: #fff !important;
}

.input-group textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.5rem;
    color: #fff;
    font-size: 1.1rem;
    resize: none;
    height: 200px;
    transition: var(--transition);
}

.input-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.lang-indicator {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    display: block;
}

.swap-btn {
    background: var(--accent-primary);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.swap-btn:hover {
    transform: rotate(180deg) scale(1.1);
}

/* --- Language Cards --- */

.history-section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

.language-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.lang-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.lang-card:hover {
    transform: translateY(-10px);
    border-color: var(--card-accent);
}

.lang-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--card-accent);
    transition: var(--transition);
}

.lang-card:hover::before {
    height: 100%;
}

.lang-card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--card-accent);
}

.lang-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.btn-more {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    border: 1px solid var(--card-accent);
    color: var(--card-accent);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: var(--transition);
}

.btn-more:hover {
    background: var(--card-accent);
    color: #fff;
}

/* --- Dynamic Themes --- */

[data-theme="turkish"] { --accent-primary: var(--accent-turkish); }
[data-theme="arabic"] { --accent-primary: var(--accent-arabic); }
[data-theme="chinese"] { --accent-primary: var(--accent-chinese); }
[data-theme="japanese"] { --accent-primary: var(--accent-japanese); }
[data-theme="urdu"] { --accent-primary: var(--accent-urdu); }

/* --- Animations --- */

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    animation: fadeInUp 1s ease-out forwards;
}

.reveal-delay-1 {
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.3s forwards;
}

.reveal-delay-2 {
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.6s forwards;
}

.reveal-delay-3 {
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.9s forwards;
}

/* --- Mobile Responsiveness --- */

@media (max-width: 768px) {
    .hero-name {
        font-size: clamp(2.5rem, 12vw, 4rem) !important;
        letter-spacing: -2px !important;
    }

    .intro-text {
        font-size: 1.1rem !important;
        padding: 0 1rem;
        margin-bottom: 2rem;
    }

    nav {
        width: 100% !important;
        height: 70px !important;
        top: auto !important;
        bottom: 0 !important;
        left: 0 !important;
        flex-direction: row !important;
        padding: 0 0.5rem !important;
        border-right: none !important;
        border-top: 1px solid var(--glass-border) !important;
        justify-content: center !important;
        background: rgba(8, 8, 10, 0.95) !important;
        backdrop-filter: blur(10px);
        z-index: 9999 !important;
        transform: translateY(100px); 
    }

    .main-active nav {
        transform: translateY(0) !important;
    }

    .logo {
        display: none !important; 
    }

    .nav-links {
        flex-direction: row !important;
        width: 100% !important;
        justify-content: space-evenly !important;
        gap: 0 !important;
    }

    .nav-links a {
        width: 48px !important;
        height: 48px !important;
        padding: 10px !important;
        border-radius: 12px !important;
    }

    main {
        margin-left: 0 !important;
        margin-bottom: 80px !important; 
        padding: 0.5rem !important;
    }

    .content-wrapper {
        display: flex !important;
        flex-direction: column !important;
        height: auto !important;
        gap: 1.5rem !important;
        width: 100% !important;
    }

    .hero-compact {
        order: 1;
        padding: 1rem 0 !important;
    }

    .translator-column {
        order: 2;
    }

    .history-column {
        order: 3;
    }

    .translator-card {
        padding: 1rem !important;
        border-radius: 16px !important;
    }

    .translator-controls {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 0.75rem !important;
    }

    .translator-controls .input-group:nth-child(1) {
        grid-column: 1 !important;
        grid-row: 1 !important;
    }

    .translator-controls .input-group:nth-child(3) {
        grid-column: 2 !important;
        grid-row: 1 !important;
    }

    #translate-btn {
        grid-column: 1 / 3 !important;
        grid-row: 2 !important;
        margin: 0.5rem 0 !important;
        padding: 0.6rem !important;
        font-size: 0.75rem !important;
    }

    .input-group textarea {
        height: 100px !important;
        padding: 0.75rem !important;
        font-size: 0.85rem !important;
    }

    .lang-indicator {
        font-size: 0.65rem !important;
        margin-bottom: 0.25rem !important;
    }

    .history-card {
        padding: 1rem !important;
        border-radius: 16px !important;
    }

    .history-card h2 {
        font-size: 1.5rem !important;
    }

    .wiki-frame-container {
        height: 500px !important;
    }

    .hero-compact h1 {
        font-size: 1.5rem !important;
    }
    
    .hero-compact p {
        font-size: 0.8rem !important;
    }

    #google_translate_element {
        padding: 0.5rem !important;
        margin-bottom: 1rem !important;
    }

    .btn-more {
        padding: 0.6rem 1rem !important;
        font-size: 0.75rem !important;
    }

    footer {
        padding: 2rem 0 8rem 0 !important;
        margin-top: 2rem !important;
    }
}

/* Extra small screens fix */
@media (max-width: 480px) {
    .content-wrapper {
        grid-template-columns: 1fr 1fr !important;
        gap: 0.5rem !important;
    }
    
    .history-card, .translator-card {
        padding: 0.75rem !important;
    }
}