@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&display=swap');

:root {
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;

    /* Light Futuristic Palette */
    --primary-pink: #ff69b4;
    --primary-blue: #4a90e2;
    --gradient-brand: linear-gradient(135deg, #ff69b4 0%, #70a1ff 50%, #4a90e2 100%);
    --bg-page: #f4f7fc;
    --bg-card: rgba(255, 255, 255, 0.85);
    --bg-header: rgba(255, 255, 255, 0.95);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: rgba(226, 232, 240, 0.8);
    --shadow-glow: 0 8px 32px rgba(255, 105, 180, 0.15);
    --card-blur: blur(12px);
    --badge-bg: #e0f2fe;
    --badge-text: #0369a1;
}

body.dark-theme {
    /* Dark Futuristic Palette */
    --primary-pink: #ff85c0;
    --primary-blue: #38bdf8;
    --gradient-brand: linear-gradient(135deg, #ec4899 0%, #8b5cf6 50%, #06b6d4 100%);
    --bg-page: #0b0f19;
    --bg-card: rgba(18, 24, 38, 0.85);
    --bg-header: rgba(15, 23, 42, 0.95);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border-color: rgba(51, 65, 85, 0.6);
    --shadow-glow: 0 8px 32px rgba(56, 189, 248, 0.2);
    --badge-bg: #1e293b;
    --badge-text: #38bdf8;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    transition: background-color 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-page);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Header & Navigation */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--bg-header);
    backdrop-filter: var(--card-blur);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    width: 100%;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 8px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.logo-brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    flex-shrink: 0;
}

.logo-svg {
    width: 38px;
    height: 38px;
    animation: heartPulse 3s ease-in-out infinite;
}

@keyframes heartPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.06); }
    100% { transform: scale(1); }
}

.brand-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.header-search {
    display: flex;
    gap: 6px;
    align-items: center;
    flex-shrink: 1;
}

.header-search input {
    width: 170px;
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    background: var(--bg-page);
    color: var(--text-primary);
    outline: none;
    font-size: 0.85rem;
}

.header-search input:focus {
    width: 210px;
    border-color: var(--primary-pink);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.88rem;
    padding: 6px 10px;
    border-radius: 20px;
    white-space: nowrap;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-pink);
    background: rgba(255, 105, 180, 0.08);
}

/* Language selector flags */
.lang-selector {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(0,0,0,0.03);
    padding: 3px 8px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
}

.flag-btn {
    border: none;
    background: transparent;
    cursor: pointer;
    font-size: 1rem;
    padding: 2px;
    border-radius: 4px;
    line-height: 1;
}

.flag-btn:hover {
    transform: scale(1.2);
}

.lang-select-box {
    padding: 4px 8px;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
    max-width: 140px;
}

.lang-select-box:hover {
    border-color: var(--primary-pink);
}

/* Layout Container */
.main-container {
    max-width: 1280px;
    margin: 25px auto;
    padding: 0 16px;
    width: 100%;
    flex: 1;
}

/* Cards & Glassmorphism */
.tribia-card {
    background: var(--bg-card);
    backdrop-filter: var(--card-blur);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 24px;
    box-shadow: var(--shadow-glow);
    margin-bottom: 24px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border-radius: 30px;
    font-weight: 600;
    font-size: 0.88rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-brand);
    color: #fff;
    box-shadow: 0 4px 15px rgba(255, 105, 180, 0.3);
}

.btn-primary:hover {
    opacity: 0.92;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--badge-bg);
    color: var(--badge-text);
}

/* Tabs System */
.tabs-header {
    display: flex;
    gap: 12px;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 20px;
}

.tab-btn {
    padding: 12px 20px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-weight: 600;
    cursor: pointer;
    font-size: 1rem;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
}

.tab-btn.active {
    color: var(--primary-pink);
    border-bottom-color: var(--primary-pink);
}

.tab-pane {
    display: none;
}
.tab-pane.active {
    display: block;
}

/* Floating Chat Sidebar */
.chat-floating-bar {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 2000;
}

.chat-toggle-btn {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-brand);
    color: #fff;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 6px 20px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-window {
    position: fixed;
    bottom: 90px;
    right: 20px;
    width: 380px;
    height: 520px;
    background: var(--bg-card);
    backdrop-filter: var(--card-blur);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.25);
    display: none;
    flex-direction: column;
    z-index: 2000;
    overflow: hidden;
}

.chat-header {
    background: var(--gradient-brand);
    color: #fff;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-messages {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.chat-msg {
    padding: 10px 14px;
    border-radius: 16px;
    max-width: 85%;
    font-size: 0.9rem;
}

.chat-msg.mine {
    background: var(--primary-blue);
    color: #fff;
    align-self: flex-end;
}

.chat-msg.others {
    background: var(--border-color);
    color: var(--text-primary);
    align-self: flex-start;
}

.chat-footer {
    padding: 10px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 8px;
}

.chat-input {
    flex: 1;
    padding: 8px 12px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    outline: none;
    background: var(--bg-page);
    color: var(--text-primary);
}

/* Footer */
footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
    padding: 25px 20px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: auto;
}

footer a {
    color: var(--primary-blue);
    text-decoration: none;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
    .header-container { justify-content: center; text-align: center; }
    .header-search input { width: 140px; }
}

@media (max-width: 768px) {
    .header-container { flex-direction: column; gap: 8px; }
    .nav-menu { justify-content: center; }
    .chat-window { width: calc(100vw - 40px); right: 20px; }
}