/* TiOLi AI Transact Exchange — Brand Design System
   Palette: Sage/Khaki Green, Charcoal, White, Light Grey
   Inspired by TiOLi brand identity — think | inspire | share */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary: #2b2b2b;           /* Charcoal — navbar, headers */
    --primary-light: #3a3a3a;     /* Lighter charcoal */
    --sage: #8fa88b;              /* Khaki/sage green — brand accent */
    --sage-dark: #6b8a66;         /* Deeper sage for hover */
    --sage-light: #b5cdb1;        /* Light sage for subtle backgrounds */
    --sage-bg: #e8efe7;           /* Very light sage tint */
    --accent: #6b8a66;            /* Primary action color — sage dark */
    --accent-hover: #5a7a56;
    --success: #5a8a56;           /* Green — positive states */
    --danger: #c44545;            /* Muted red — errors */
    --warning: #c49945;           /* Amber — warnings */
    --charity: #7a6b8a;           /* Muted purple — charity */
    --text: #2b2b2b;              /* Charcoal text on light bg */
    --text-light: #ffffff;        /* White text on dark bg */
    --text-muted: #7a7a7a;        /* Grey — secondary text */
    --bg: #f5f5f3;                /* Warm off-white — page background */
    --card-bg: #ffffff;           /* Pure white — cards */
    --border: #ddd9d4;            /* Warm grey border */
    --border-light: #eae7e3;      /* Lighter border */
    --input-bg: #fafaf8;          /* Input fields */
    --radius: 10px;
    --radius-lg: 16px;
    --shadow: 0 2px 8px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.10);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ===== NAVBAR ===== */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 2rem;
    background: var(--primary);
    border-bottom: 3px solid var(--sage);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand { display: flex; align-items: center; gap: 0.75rem; }
.logo { color: var(--sage); font-size: 1.4rem; }
.brand-text { font-weight: 700; font-size: 1rem; color: var(--text-light); letter-spacing: 0.3px; }
.nav-links { display: flex; gap: 0.25rem; }
.nav-link {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    padding: 0.5rem 0.85rem;
    border-radius: 6px;
    transition: all 0.2s;
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.2px;
}
.nav-link:hover { color: #fff; background: rgba(143,168,139,0.25); }
.nav-link.active { color: #fff; background: var(--sage-dark); }
.nav-link.logout { color: rgba(255,255,255,0.5); }
.nav-link.logout:hover { color: var(--danger); background: rgba(196,69,69,0.15); }
.nav-toggle { display: none; background: none; border: none; color: var(--text-light); font-size: 1.5rem; cursor: pointer; }

/* ===== CONTAINER ===== */
.container { flex: 1; padding: 2rem; max-width: 1400px; margin: 0 auto; width: 100%; }

/* ===== STAT CARDS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.15s, box-shadow 0.15s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-value { font-size: 1.8rem; font-weight: 700; color: var(--accent); }
.stat-card.highlight .stat-value { color: var(--success); }
.stat-card.charity .stat-value { color: var(--charity); }
.stat-card.valid .stat-value { color: var(--success); }
.stat-card.invalid .stat-value { color: var(--danger); }
.stat-label { color: var(--text-muted); margin-top: 0.25rem; font-size: 0.8rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }

/* ===== PANELS ===== */
.dashboard-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.panel {
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    padding: 1.5rem;
    box-shadow: var(--shadow);
}
.panel h2 { margin-bottom: 1rem; font-size: 1.1rem; font-weight: 600; color: var(--primary); border-bottom: 2px solid var(--sage-bg); padding-bottom: 0.5rem; }

/* ===== TABLES ===== */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.85rem; }
th { padding: 0.75rem; text-align: left; border-bottom: 2px solid var(--sage-bg); color: var(--text-muted); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.5px; }
td { padding: 0.75rem; text-align: left; border-bottom: 1px solid var(--border-light); }
tr:hover td { background: var(--sage-bg); }
td.empty { text-align: center; color: var(--text-muted); padding: 2rem; }

/* ===== BADGES ===== */
.badge {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}
.badge-transfer { background: rgba(107,138,102,0.15); color: var(--accent); }
.badge-deposit { background: rgba(90,138,86,0.15); color: var(--success); }
.badge-withdrawal { background: rgba(196,69,69,0.12); color: var(--danger); }
.badge-commission_deduction { background: rgba(196,153,69,0.12); color: var(--warning); }
.badge-charity_deduction { background: rgba(122,107,138,0.15); color: var(--charity); }
.badge-feature { background: rgba(107,138,102,0.15); color: var(--accent); }
.badge-security { background: rgba(196,69,69,0.12); color: var(--danger); }
.badge-warning { background: rgba(196,153,69,0.12); color: var(--warning); }
.badge-genesis { background: rgba(107,138,102,0.15); color: var(--accent); }

/* ===== BUTTONS ===== */
.btn {
    padding: 0.6rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: all 0.2s;
    letter-spacing: 0.3px;
}
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { background: var(--accent-hover); box-shadow: 0 2px 8px rgba(107,138,102,0.3); }
.btn-success { background: var(--success); color: white; }
.btn-success:hover { box-shadow: 0 2px 8px rgba(90,138,86,0.3); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { box-shadow: 0 2px 8px rgba(196,69,69,0.3); }
.btn-sm { padding: 0.3rem 0.75rem; font-size: 0.75rem; }
.btn-full { width: 100%; }
.inline-form { display: inline-flex; gap: 0.5rem; align-items: center; }

/* ===== FORMS ===== */
input, textarea, select {
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.6rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    width: 100%;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--sage);
    box-shadow: 0 0 0 3px rgba(143,168,139,0.15);
}

/* ===== LOGIN ===== */
.login-container { display: flex; justify-content: center; align-items: center; min-height: 70vh; }
.login-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
    width: 100%;
    max-width: 480px;
    box-shadow: var(--shadow-lg);
}
.login-card h1 { text-align: center; margin-bottom: 0.5rem; color: var(--primary); font-size: 1.5rem; }
.subtitle { text-align: center; color: var(--sage-dark); margin-bottom: 1.5rem; font-weight: 500; }
.login-info { text-align: center; color: var(--text-muted); margin-bottom: 1.5rem; font-size: 0.9rem; }
.challenge-panel { margin-top: 1rem; }
.factor {
    display: flex; align-items: center; gap: 1rem;
    padding: 1rem; margin: 0.75rem 0;
    border-radius: var(--radius); border: 1px solid var(--border);
    background: var(--input-bg);
}
.factor.verified { border-color: var(--success); background: rgba(90,138,86,0.06); }
.factor-icon {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    border-radius: 50%; background: var(--sage-bg);
    font-weight: 700; font-size: 0.9rem; color: var(--accent);
}
.factor.verified .factor-icon { background: var(--success); color: white; }
.security-notice { margin-top: 2rem; text-align: center; color: var(--text-muted); font-size: 0.78rem; }

/* ===== PROPOSALS ===== */
.proposal-card {
    padding: 1.25rem;
    border: 1px solid var(--border-light);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    background: var(--input-bg);
    transition: border-color 0.2s;
}
.proposal-card:hover { border-color: var(--sage); }
.proposal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.proposal-header h3 { font-size: 0.95rem; color: var(--primary); }
.vote-count { color: var(--text-muted); font-size: 0.85rem; }
.proposal-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; margin-top: 0.75rem; }

/* ===== CHAT ===== */
.chat-container { display: flex; flex-direction: column; height: calc(100vh - 140px); }
.chat-header { margin-bottom: 1rem; }
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    background: var(--card-bg);
    border-radius: var(--radius);
    border: 1px solid var(--border-light);
    margin-bottom: 1rem;
    box-shadow: var(--shadow);
}
.message { margin-bottom: 1rem; display: flex; }
.message.user { justify-content: flex-end; }
.message.system .message-content,
.message.assistant .message-content {
    background: var(--sage-bg);
    color: var(--text);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    max-width: 80%;
    font-size: 0.9rem;
    line-height: 1.5;
}
.message.user .message-content {
    background: var(--accent);
    color: white;
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    max-width: 80%;
    font-size: 0.9rem;
}
.message.error .message-content { background: rgba(196,69,69,0.1); color: var(--danger); border-radius: var(--radius); padding: 0.75rem 1rem; }
.input-group { display: flex; gap: 0.75rem; }
.input-group textarea { flex: 1; resize: none; }
.chat-input-area .btn { align-self: flex-end; height: fit-content; }

/* ===== DASHBOARD HEADER ===== */
.dashboard-header { margin-bottom: 2rem; }
.dashboard-header h1 { font-size: 1.6rem; font-weight: 700; color: var(--primary); }
.welcome { color: var(--text-muted); font-size: 0.9rem; }

/* ===== ALERTS ===== */
.alert { padding: 1rem; border-radius: var(--radius); margin-bottom: 1rem; font-size: 0.9rem; }
.alert-success { background: rgba(90,138,86,0.1); color: var(--success); border: 1px solid rgba(90,138,86,0.2); }
.alert-error { background: rgba(196,69,69,0.08); color: var(--danger); border: 1px solid rgba(196,69,69,0.15); }
.alert-info { background: rgba(107,138,102,0.1); color: var(--accent); border: 1px solid rgba(107,138,102,0.2); }

/* ===== ORDER BOOK ===== */
.order-book { display: flex; flex-direction: column; gap: 0.5rem; }
.book-side table { width: 100%; }
.book-side h3 { font-size: 0.85rem; margin-bottom: 0.5rem; font-weight: 600; }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.ask-row td:first-child { color: var(--danger); }
.bid-row td:first-child { color: var(--success); }
.spread-indicator {
    text-align: center; padding: 0.5rem;
    background: var(--sage-bg); border-radius: var(--radius);
    font-size: 0.85rem; color: var(--text-muted); font-weight: 500;
}

/* ===== RATES GRID ===== */
.rates-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1rem; }
.rate-card {
    background: var(--input-bg); padding: 1rem;
    border-radius: var(--radius); border: 1px solid var(--border-light); text-align: center;
}
.rate-pair { color: var(--text-muted); font-size: 0.8rem; margin-bottom: 0.25rem; text-transform: uppercase; letter-spacing: 0.5px; }
.rate-value { font-size: 1.1rem; font-weight: 700; color: var(--accent); }

/* ===== HEALTH BANNERS ===== */
.health-banner {
    padding: 0.75rem 1.5rem; border-radius: var(--radius);
    font-weight: 700; text-align: center; font-size: 1rem;
}
.health-healthy { background: rgba(90,138,86,0.12); color: var(--success); border: 1px solid rgba(90,138,86,0.2); }
.health-warning { background: rgba(196,153,69,0.12); color: var(--warning); border: 1px solid rgba(196,153,69,0.2); }
.health-critical { background: rgba(196,69,69,0.1); color: var(--danger); border: 1px solid rgba(196,69,69,0.15); }

/* ===== STAT META ===== */
.stat-meta { color: var(--text-muted); font-size: 0.72rem; margin-top: 0.25rem; }

/* ===== FOOTER ===== */
.footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-muted);
    font-size: 0.78rem;
    border-top: 1px solid var(--border-light);
    background: var(--card-bg);
    letter-spacing: 0.3px;
}

/* ===== RESPONSIVE — TABLET ===== */
@media (max-width: 1024px) {
    .dashboard-panels { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
}

/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 768px) {
    .navbar { padding: 0.75rem 1rem; }
    .nav-links {
        display: none;
        position: absolute; top: 100%; left: 0; right: 0;
        background: var(--primary);
        flex-direction: column;
        padding: 1rem;
        border-bottom: 3px solid var(--sage);
    }
    .nav-links.open { display: flex; }
    .nav-toggle { display: block; }
    .container { padding: 1rem; }
    .stat-value { font-size: 1.4rem; }
    .login-card { padding: 1.5rem; margin: 1rem; }
    .message.user .message-content,
    .message.assistant .message-content,
    .message.system .message-content { max-width: 95%; }
    .proposal-actions { flex-direction: column; align-items: flex-start; }
    .inline-form { width: 100%; }
    .inline-form input { flex: 1; }
    table { font-size: 0.75rem; }
    th, td { padding: 0.5rem; }
}

/* ===== RESPONSIVE — SMALL MOBILE ===== */
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .brand-text { font-size: 0.85rem; }
    .stat-card { padding: 1rem; }
    .stat-value { font-size: 1.1rem; }
}