/* FluentGerman.ai — Design System v2 */ /* ── Fonts ────────────────────────────────────────────────────────── */ @import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap'); /* ── CSS Custom Properties ───────────────────────────────────────── */ :root { /* Gradient palette */ --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%); --gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); --gradient-bg: linear-gradient(135deg, #0c0e1a 0%, #141829 50%, #0f1423 100%); --gradient-card: linear-gradient(145deg, rgba(30, 35, 55, 0.8), rgba(20, 25, 42, 0.6)); --gradient-btn: linear-gradient(135deg, #667eea 0%, #764ba2 100%); --gradient-btn-hover: linear-gradient(135deg, #7b93ff 0%, #8a5cb8 100%); --gradient-warm: linear-gradient(135deg, #f5af19 0%, #f12711 100%); /* Colors */ --bg-primary: #0c0e1a; --bg-secondary: #131726; --bg-card: rgba(22, 27, 45, 0.7); --bg-input: rgba(35, 42, 65, 0.6); --bg-hover: rgba(45, 55, 80, 0.5); --text-primary: #e8ecf5; --text-secondary: #8b92a8; --text-muted: #5a6178; --accent: #7c6cf0; --accent-hover: #8f82f5; --accent-glow: rgba(124, 108, 240, 0.3); --success: #34d399; --warning: #fbbf24; --danger: #fb7185; --border: rgba(255, 255, 255, 0.06); --border-focus: rgba(124, 108, 240, 0.5); /* Glass */ --glass-bg: rgba(22, 27, 45, 0.65); --glass-border: rgba(255, 255, 255, 0.08); --glass-blur: 20px; /* Spacing */ --radius-sm: 10px; --radius-md: 14px; --radius-lg: 20px; --radius-full: 9999px; /* Shadows */ --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3); --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4); --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5); --shadow-glow: 0 0 30px rgba(124, 108, 240, 0.15); --shadow-btn-glow: 0 4px 24px rgba(124, 108, 240, 0.35); /* Transitions */ --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1); --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1); --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1); } /* ── Reset & Base ─────────────────────────────────────────────────── */ *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; } html { font-size: 16px; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; } body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif; background: var(--gradient-bg); background-attachment: fixed; color: var(--text-primary); line-height: 1.6; min-height: 100vh; overflow-x: hidden; } /* Animated background orbs */ body::before, body::after { content: ''; position: fixed; border-radius: 50%; filter: blur(120px); opacity: 0.12; z-index: -1; pointer-events: none; animation: orbFloat 20s ease-in-out infinite alternate; } body::before { width: 600px; height: 600px; background: var(--gradient-primary); top: -200px; right: -200px; } body::after { width: 500px; height: 500px; background: var(--gradient-accent); bottom: -150px; left: -150px; animation-delay: -10s; } a { color: var(--accent); text-decoration: none; transition: color var(--transition); } a:hover { color: var(--accent-hover); } /* ── Layout ───────────────────────────────────────────────────────── */ .container { max-width: 940px; margin: 0 auto; padding: 0 20px; } .page-center { display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 20px; } /* ── Glass Cards ──────────────────────────────────────────────────── */ .card { background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur)); border: 1px solid var(--glass-border); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-md), var(--shadow-glow); transition: transform var(--transition), box-shadow var(--transition); } .card:hover { box-shadow: var(--shadow-lg), var(--shadow-glow); } .card-sm { max-width: 420px; width: 100%; } /* ── Typography ───────────────────────────────────────────────────── */ h1, h2, h3 { font-weight: 600; letter-spacing: -0.02em; } h1 { font-size: 1.75rem; } h2 { font-size: 1.35rem; } h3 { font-size: 1.1rem; } .logo { font-size: 1.6rem; font-weight: 700; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: -0.03em; filter: drop-shadow(0 0 12px rgba(124, 108, 240, 0.3)); } .subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-top: 6px; } /* ── Forms ────────────────────────────────────────────────────────── */ .form-group { margin-bottom: 18px; } .form-group label { display: block; font-size: 0.82rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 6px; letter-spacing: 0.02em; } input, select, textarea { width: 100%; padding: 11px 16px; background: var(--bg-input); backdrop-filter: blur(8px); border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-primary); font-family: inherit; font-size: 0.95rem; transition: all var(--transition); } input:focus, select:focus, textarea:focus { outline: none; border-color: var(--border-focus); box-shadow: 0 0 0 3px var(--accent-glow), 0 0 20px rgba(124, 108, 240, 0.1); background: rgba(40, 48, 75, 0.7); } input::placeholder, textarea::placeholder { color: var(--text-muted); } textarea { resize: vertical; min-height: 100px; } /* ── Buttons ──────────────────────────────────────────────────────── */ .btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 22px; border: none; border-radius: var(--radius-sm); font-family: inherit; font-size: 0.9rem; font-weight: 500; cursor: pointer; transition: all var(--transition); white-space: nowrap; position: relative; overflow: hidden; } .btn::before { content: ''; position: absolute; inset: 0; background: linear-gradient(rgba(255, 255, 255, 0.1), transparent); opacity: 0; transition: opacity var(--transition); } .btn:hover::before { opacity: 1; } .btn-primary { background: var(--gradient-btn); color: #fff; box-shadow: 0 2px 12px rgba(124, 108, 240, 0.25); } .btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-btn-glow); } .btn-primary:active { transform: translateY(0) scale(0.98); } .btn-secondary { background: var(--bg-input); color: var(--text-primary); border: 1px solid var(--glass-border); } .btn-secondary:hover { background: var(--bg-hover); border-color: rgba(255, 255, 255, 0.12); transform: translateY(-1px); } .btn-danger { background: linear-gradient(135deg, #fb7185, #e11d48); color: #fff; } .btn-danger:hover { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(251, 113, 133, 0.3); } .btn-sm { padding: 7px 14px; font-size: 0.8rem; border-radius: 8px; } .btn-block { width: 100%; } .btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none !important; box-shadow: none !important; } /* ── Navbar ───────────────────────────────────────────────────────── */ .navbar { display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur)); border-bottom: 1px solid var(--glass-border); position: sticky; top: 0; z-index: 100; } .navbar-right { display: flex; align-items: center; gap: 12px; } .navbar-user { font-size: 0.85rem; color: var(--text-secondary); } /* ── Tabs ─────────────────────────────────────────────────────────── */ .tabs { display: flex; gap: 4px; padding: 4px; background: rgba(20, 25, 42, 0.6); backdrop-filter: blur(12px); border: 1px solid var(--glass-border); border-radius: var(--radius-md); margin-bottom: 24px; } .tab { flex: 1; padding: 9px 16px; background: transparent; border: none; border-radius: 10px; color: var(--text-secondary); font-family: inherit; font-size: 0.85rem; font-weight: 500; cursor: pointer; transition: all var(--transition); text-align: center; position: relative; } .tab.active { background: var(--gradient-btn); color: #fff; box-shadow: 0 2px 12px rgba(124, 108, 240, 0.3); } .tab:hover:not(.active) { color: var(--text-primary); background: rgba(124, 108, 240, 0.1); } /* ── Chat ─────────────────────────────────────────────────────────── */ .chat-container { display: flex; flex-direction: column; height: calc(100vh - 57px); } .chat-messages { flex: 1; overflow-y: auto; padding: 24px; display: flex; flex-direction: column; gap: 14px; } .message { max-width: 75%; padding: 13px 18px; border-radius: var(--radius-md); font-size: 0.94rem; line-height: 1.55; animation: messageIn 0.4s var(--transition-bounce) backwards; position: relative; } .message-user { align-self: flex-end; background: var(--gradient-btn); color: #fff; border-bottom-right-radius: 5px; box-shadow: 0 2px 12px rgba(124, 108, 240, 0.2); } .message-assistant { align-self: flex-start; background: var(--glass-bg); backdrop-filter: blur(12px); border: 1px solid var(--glass-border); border-bottom-left-radius: 5px; box-shadow: var(--shadow-sm); } /* ── Markdown in messages ──────────────────────────────────────────── */ .message-assistant p { margin: 0 0 8px 0; } .message-assistant p:last-child { margin-bottom: 0; } .message-assistant strong { color: #c4b5fd; } .message-assistant code { background: rgba(124, 108, 240, 0.15); padding: 2px 6px; border-radius: 4px; font-family: 'JetBrains Mono', 'Fira Code', monospace; font-size: 0.86em; } .message-assistant pre { background: rgba(0, 0, 0, 0.35); border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; overflow-x: auto; margin: 8px 0; } .message-assistant pre code { background: none; padding: 0; font-size: 0.85em; color: #d4d4d8; } .message-assistant ul, .message-assistant ol { margin: 6px 0; padding-left: 20px; } .message-assistant li { margin-bottom: 3px; } .message-assistant blockquote { border-left: 3px solid var(--accent); padding: 4px 12px; margin: 8px 0; color: var(--text-secondary); background: rgba(124, 108, 240, 0.05); border-radius: 0 6px 6px 0; } .message-assistant h1, .message-assistant h2, .message-assistant h3 { margin: 10px 0 6px 0; font-size: 1em; color: #e0d4ff; } .message-assistant hr { border: none; border-top: 1px solid var(--border); margin: 10px 0; } .message-assistant table { margin: 8px 0; font-size: 0.85em; } .message-assistant a { color: var(--accent-hover); text-decoration: underline; text-decoration-style: dotted; } .chat-input-bar { display: flex; gap: 10px; padding: 16px 24px; background: var(--glass-bg); backdrop-filter: blur(var(--glass-blur)); border-top: 1px solid var(--glass-border); } .chat-input-bar input { flex: 1; } .voice-btn { width: 46px; height: 46px; border-radius: 50%; background: var(--bg-input); border: 1px solid var(--glass-border); color: var(--text-secondary); font-size: 1.2rem; cursor: pointer; transition: all var(--transition); display: flex; align-items: center; justify-content: center; position: relative; } .voice-btn:hover { background: var(--bg-hover); color: var(--text-primary); transform: scale(1.05); } .voice-btn.recording { background: linear-gradient(135deg, #fb7185, #e11d48); color: #fff; border-color: transparent; box-shadow: 0 0 0 0 rgba(251, 113, 133, 0.5); animation: recordPulse 1.8s infinite; } /* ── Tables ───────────────────────────────────────────────────────── */ .table-wrapper { overflow-x: auto; } table { width: 100%; border-collapse: collapse; font-size: 0.9rem; } th, td { text-align: left; padding: 13px 16px; border-bottom: 1px solid var(--border); } th { color: var(--text-muted); font-weight: 500; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; } tr { transition: background var(--transition); } tr:hover td { background: rgba(124, 108, 240, 0.04); } /* ── Badge ────────────────────────────────────────────────────────── */ .badge { display: inline-block; padding: 3px 10px; border-radius: var(--radius-full); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.03em; text-transform: uppercase; } .badge-global { background: rgba(124, 108, 240, 0.15); color: #a99bff; } .badge-personal { background: rgba(52, 211, 153, 0.15); color: #6ee7b7; } .badge-homework { background: rgba(251, 191, 36, 0.15); color: #fcd34d; } /* ── Modal ────────────────────────────────────────────────────────── */ .modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.65); backdrop-filter: blur(6px); display: flex; justify-content: center; align-items: center; z-index: 200; padding: 20px; animation: fadeIn 0.25s ease; } .modal { background: var(--bg-secondary); border: 1px solid var(--glass-border); border-radius: var(--radius-lg); padding: 30px; width: 100%; max-width: 500px; box-shadow: var(--shadow-lg), 0 0 60px rgba(124, 108, 240, 0.08); animation: modalIn 0.35s cubic-bezier(0.34, 1.56, 0.64, 1); } .modal h2 { margin-bottom: 20px; } .modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 24px; } /* ── Toast ────────────────────────────────────────────────────────── */ .toast-container { position: fixed; top: 20px; right: 20px; z-index: 300; display: flex; flex-direction: column; gap: 8px; } .toast { padding: 12px 20px; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 500; animation: toastIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); box-shadow: var(--shadow-md); backdrop-filter: blur(12px); } .toast-success { background: linear-gradient(135deg, rgba(52, 211, 153, 0.9), rgba(16, 185, 129, 0.9)); color: #0c2a1c; } .toast-error { background: linear-gradient(135deg, rgba(251, 113, 133, 0.9), rgba(225, 29, 72, 0.9)); color: #fff; } .toast-info { background: linear-gradient(135deg, rgba(96, 165, 250, 0.9), rgba(59, 130, 246, 0.9)); color: #fff; } /* ── Welcome Section ─────────────────────────────────────────────── */ .welcome-section { background: var(--gradient-card); backdrop-filter: blur(var(--glass-blur)); -webkit-backdrop-filter: blur(var(--glass-blur)); border: 1px solid var(--glass-border); border-radius: var(--radius-lg); padding: 28px 32px; margin-bottom: 8px; box-shadow: var(--shadow-md), var(--shadow-glow); animation: messageIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1) backwards; } .welcome-row { display: flex; align-items: center; gap: 24px; } .welcome-text { flex: 1; min-width: 0; } .welcome-greeting { font-size: 1.4rem; font-weight: 700; background: var(--gradient-primary); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: -0.02em; margin-bottom: 4px; } .welcome-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 8px; } .welcome-meta { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--text-muted); opacity: 0; transform: translateY(6px); transition: opacity 0.4s ease, transform 0.4s ease; } .welcome-meta.visible { opacity: 1; transform: translateY(0); } .welcome-meta strong { color: var(--text-secondary); } .meta-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--success); flex-shrink: 0; box-shadow: 0 0 6px rgba(52, 211, 153, 0.5); } /* ── Avatar ───────────────────────────────────────────────────────── */ .avatar-container { position: relative; width: 72px; height: 72px; flex-shrink: 0; } .avatar-ring { position: absolute; inset: 0; border-radius: 50%; border: 2px solid transparent; background: var(--gradient-primary) border-box; -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0); -webkit-mask-composite: xor; mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0); mask-composite: exclude; animation: avatarSpin 6s linear infinite; } .avatar-placeholder { position: absolute; inset: 4px; border-radius: 50%; background: var(--glass-bg); display: flex; align-items: center; justify-content: center; font-size: 1.8rem; animation: avatarBreathe 3s ease-in-out infinite; box-shadow: inset 0 0 20px rgba(124, 108, 240, 0.08); } .avatar-pulse { position: absolute; inset: -4px; border-radius: 50%; border: 1px solid rgba(124, 108, 240, 0.15); animation: avatarPulseAnim 3s ease-in-out infinite; } @keyframes avatarSpin { to { transform: rotate(360deg); } } @keyframes avatarBreathe { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.03); } } @keyframes avatarPulseAnim { 0%, 100% { transform: scale(1); opacity: 0.5; } 50% { transform: scale(1.12); opacity: 0; } } /* ── Animations ───────────────────────────────────────────────────── */ @keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } } @keyframes messageIn { from { opacity: 0; transform: translateY(12px) scale(0.95); } to { opacity: 1; transform: translateY(0) scale(1); } } @keyframes modalIn { from { opacity: 0; transform: translateY(16px) scale(0.96); } to { opacity: 1; transform: translateY(0) scale(1); } } @keyframes toastIn { from { opacity: 0; transform: translateX(24px) scale(0.9); } to { opacity: 1; transform: translateX(0) scale(1); } } @keyframes recordPulse { 0% { box-shadow: 0 0 0 0 rgba(251, 113, 133, 0.5); } 50% { box-shadow: 0 0 0 14px rgba(251, 113, 133, 0); } 100% { box-shadow: 0 0 0 0 rgba(251, 113, 133, 0); } } @keyframes orbFloat { 0% { transform: translate(0, 0) scale(1); } 50% { transform: translate(-40px, 30px) scale(1.1); } 100% { transform: translate(20px, -20px) scale(0.95); } } @keyframes spin { to { transform: rotate(360deg); } } @keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } } /* ── Responsive ───────────────────────────────────────────────────── */ @media (max-width: 768px) { .card { padding: 24px; } .chat-messages { padding: 16px; } .chat-input-bar { padding: 12px 16px; } .message { max-width: 88%; } .navbar { padding: 12px 16px; } .modal { padding: 22px; } table { font-size: 0.8rem; } th, td { padding: 10px 12px; } .logo { font-size: 1.3rem; } body::before, body::after { display: none; } .hide-mobile { display: none !important; } .welcome-section { padding: 20px; } .welcome-row { gap: 16px; } .avatar-container { width: 56px; height: 56px; } .avatar-placeholder { font-size: 1.4rem; } .welcome-greeting { font-size: 1.15rem; } } /* ── Utilities ────────────────────────────────────────────────────── */ .mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mb-8 { margin-bottom: 8px; } .mb-16 { margin-bottom: 16px; } .text-center { text-align: center; } .text-muted { color: var(--text-muted); } .text-sm { font-size: 0.85rem; } .flex { display: flex; } .flex-between { display: flex; justify-content: space-between; align-items: center; } .gap-8 { gap: 8px; } .gap-16 { gap: 16px; } .hidden { display: none !important; } /* ── Scrollbar ────────────────────────────────────────────────────── */ ::-webkit-scrollbar { width: 5px; } ::-webkit-scrollbar-track { background: transparent; } ::-webkit-scrollbar-thumb { background: rgba(124, 108, 240, 0.2); border-radius: 3px; } ::-webkit-scrollbar-thumb:hover { background: rgba(124, 108, 240, 0.4); } /* ── Voice status & indicators ────────────────────────────────────── */ .voice-status { display: flex; align-items: center; gap: 8px; font-size: 0.8rem; color: var(--danger); font-weight: 500; } .voice-status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--danger); animation: recordPulse 1.5s infinite; } /* ── Empty state ──────────────────────────────────────────────────── */ .empty-state { text-align: center; padding: 48px 24px; color: var(--text-muted); } /* ── Loading spinner ──────────────────────────────────────────────── */ .spinner { width: 22px; height: 22px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; } /* ── Selection highlight ──────────────────────────────────────────── */ ::selection { background: rgba(124, 108, 240, 0.35); color: #fff; }