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

:root {
    --bg: #0f1117;
    --surface: #1a1d27;
    --surface-2: #232733;
    --border: #2d3140;
    --text: #e4e4e7;
    --text-muted: #8b8d98;
    --primary: #6366f1;
    --primary-hover: #818cf8;
    --danger: #ef4444;
    --success: #22c55e;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

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

.container { max-width: 1000px; margin: 0 auto; padding: 2rem 1.5rem; }

/* Navbar */
.navbar {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 2rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
}
.nav-brand { font-size: 1.2rem; font-weight: 700; color: var(--text); }
.nav-brand a { color: var(--text); }

/* Buttons */
.btn {
    display: inline-block; padding: 0.5rem 1.2rem;
    border: 1px solid var(--border); border-radius: 6px;
    font-size: 0.9rem; cursor: pointer;
    color: var(--text); background: var(--surface-2);
    transition: all 0.15s;
}
.btn:hover { background: var(--border); }
.btn-primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-outline { background: transparent; }
.btn-sm { padding: 0.3rem 0.8rem; font-size: 0.8rem; }
.btn-full { width: 100%; }
.btn-close { background: none; border: none; color: var(--text-muted); font-size: 1.5rem; cursor: pointer; }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; margin-bottom: 0.3rem; font-size: 0.9rem; color: var(--text-muted); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 0.6rem 0.8rem;
    background: var(--bg); border: 1px solid var(--border); border-radius: 6px;
    color: var(--text); font-size: 0.95rem; font-family: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-actions { display: flex; align-items: center; gap: 1rem; margin-top: 1rem; }

/* Login */
.login-container {
    display: flex; justify-content: center; align-items: center;
    min-height: 100vh;
}
.login-card {
    background: var(--surface); padding: 2.5rem; border-radius: 12px;
    border: 1px solid var(--border); width: 360px;
}
.login-card h1 { font-size: 1.5rem; margin-bottom: 0.2rem; }
.subtitle { color: var(--text-muted); margin-bottom: 1.5rem; }

/* Alerts */
.alert { padding: 0.6rem 1rem; border-radius: 6px; margin-bottom: 1rem; font-size: 0.9rem; }
.alert.error { background: rgba(239,68,68,0.15); border: 1px solid var(--danger); color: var(--danger); }

/* Header */
.header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }

/* Client Grid */
.client-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1rem; }
.client-card {
    display: block; padding: 1.2rem; background: var(--surface);
    border: 1px solid var(--border); border-radius: 8px;
    transition: border-color 0.15s; color: var(--text);
}
.client-card:hover { border-color: var(--primary); }
.client-name { font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.client-meta { display: flex; justify-content: space-between; font-size: 0.85rem; color: var(--text-muted); }
.client-voice { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.5rem; }

/* Empty state */
.empty-state { text-align: center; padding: 3rem; color: var(--text-muted); }
.empty { color: var(--text-muted); font-style: italic; }
.hint { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 0.8rem; }

/* Breadcrumb */
.breadcrumb { margin-bottom: 1rem; font-size: 0.9rem; color: var(--text-muted); }

/* Client Header */
.client-header { margin-bottom: 2rem; }
.client-stats { display: flex; gap: 2rem; margin-top: 1rem; }
.stat { text-align: center; }
.stat-value { display: block; font-size: 1.8rem; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); }

/* Tabs */
.tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; }
.tab {
    padding: 0.7rem 1.5rem; background: none; border: none; border-bottom: 2px solid transparent;
    color: var(--text-muted); cursor: pointer; font-size: 0.95rem;
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Sections */
.section { margin-bottom: 2rem; padding-bottom: 2rem; border-bottom: 1px solid var(--border); }
.section h3 { margin-bottom: 0.5rem; }

/* Upload form */
.upload-form { display: flex; gap: 1rem; align-items: end; }
.upload-form input[type="file"] {
    flex: 1; padding: 0.5rem;
    background: var(--bg); border: 1px dashed var(--border); border-radius: 6px;
    color: var(--text);
}

/* Tables */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border); }
th { font-size: 0.8rem; text-transform: uppercase; color: var(--text-muted); }
td { font-size: 0.9rem; }

/* Badge */
.badge {
    display: inline-block; padding: 0.2rem 0.6rem;
    background: rgba(34,197,94,0.15); color: var(--success);
    border-radius: 4px; font-size: 0.8rem;
}

/* Modal */
.modal {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.6); justify-content: center; align-items: center;
    z-index: 100;
}
.modal-content {
    background: var(--surface); padding: 2rem; border-radius: 12px;
    border: 1px solid var(--border); width: 480px; max-height: 90vh; overflow-y: auto;
}
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }

@media (max-width: 640px) {
    .form-row { grid-template-columns: 1fr; }
    .client-grid { grid-template-columns: 1fr; }
    .client-stats { flex-wrap: wrap; }
    .upload-form { flex-direction: column; }
}