/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary: #fe2c55;
    --primary-dark: #e0264b;
    --bg: #f5f5f5;
    --card-bg: #ffffff;
    --text: #1a1a1a;
    --text-muted: #999;
    --border: #e5e5e5;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --radius: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

/* === Navbar === */
.navbar {
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 56px;
}
.nav-brand {
    font-size: 18px;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}
.nav-brand:hover { text-decoration: none; }
.nav-links { display: flex; gap: 20px; }
.nav-links a {
    font-size: 14px;
    color: #555;
    text-decoration: none;
    padding: 6px 12px;
    border-radius: 8px;
    transition: background 0.15s;
}
.nav-links a:hover { background: #f0f0f0; text-decoration: none; }

/* === Container === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px;
    flex: 1;
}

/* === Footer === */
.footer {
    text-align: center;
    padding: 20px;
    color: var(--text-muted);
    font-size: 13px;
    border-top: 1px solid var(--border);
}

/* === Flash Messages === */
.flash-messages {
    margin-bottom: 16px;
}
.flash-msg {
    padding: 10px 16px;
    border-radius: 8px;
    margin-bottom: 8px;
    font-size: 14px;
}
.flash-info { background: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.flash-success { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; }
.flash-error { background: #fef2f2; color: #dc2626; border: 1px solid #fecaca; }
.flash-warning { background: #fffbeb; color: #d97706; border: 1px solid #fef3c7; }

/* === Cards === */
.card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.card h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text);
}

/* === Dashboard === */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.stat-card.streak-active { border-color: #fbbf24; }
.stat-number {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
}
.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}
@media (max-width: 768px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .dashboard-grid { grid-template-columns: 1fr; }
}

/* === Action Buttons === */
.action-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.15s;
}
.btn:hover { opacity: 0.9; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-secondary { background: #3b82f6; color: #fff; }
.btn-accent { background: #f59e0b; color: #fff; }
.btn-outline { background: #fff; color: #555; border: 1px solid var(--border); }
.btn-danger { background: #ef4444; color: #fff; }
.btn-sm { padding: 4px 12px; font-size: 12px; }

/* === Schedule List === */
.schedule-list { display: flex; flex-direction: column; gap: 8px; }
.schedule-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: #f9fafb;
    border-radius: 8px;
}
.time-badge {
    background: var(--primary);
    color: #fff;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 13px;
}
.mode-badge {
    background: #f0f0f0;
    color: #555;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 13px;
}

/* === Log Table === */
.log-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.log-table th, .log-table td { padding: 8px 12px; text-align: left; border-bottom: 1px solid var(--border); }
.log-table th { font-weight: 600; color: var(--text-muted); background: #fafafa; }
.status-success { color: #16a34a; }
.status-failed { color: #dc2626; }
.status-skipped { color: #d97706; }

/* === Friends Page === */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}
.header-actions { display: flex; gap: 8px; }
.friends-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 12px;
}
.friend-card {
    background: var(--card-bg);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.friend-card.has-streak { border-color: #fbbf24; background: #fffdf7; }
.friend-avatar {
    width: 48px; height: 48px;
    border-radius: 50%;
    overflow: hidden;
    background: #f0f0f0;
    position: relative;
    flex-shrink: 0;
}
.friend-avatar img {
    width: 100%; height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0; left: 0;
}
.avatar-placeholder {
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 600;
    color: #999;
}
.friend-info { flex: 1; min-width: 0; }
.friend-name {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.friend-badges { margin-top: 4px; display: flex; gap: 4px; flex-wrap: wrap; }
.badge {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
}
.badge-mutual { background: #e0e7ff; color: #4f46e5; }
.badge-streak { background: #fef3c7; color: #b45309; }
.badge-risk { background: #fee2e2; color: #dc2626; }

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px;
    color: var(--text-muted);
}

/* === Settings Page === */
.settings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
    gap: 16px;
}
.schedule-row, .template-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}
.template-row { flex-wrap: wrap; }
.template-text { flex: 1; font-size: 14px; }
.template-count { font-size: 12px; color: var(--text-muted); }

.time-input, .mode-select, .text-input {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    background: #fff;
}
.mode-select { min-width: 100px; }
.text-input { min-width: 150px; }

.toggle-label {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    cursor: pointer;
}

/* === Status Messages === */
.status-msg {
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 14px;
}
.status-info { background: #eff6ff; color: #2563eb; }
.status-success { background: #f0fdf4; color: #16a34a; }
.status-error { background: #fef2f2; color: #dc2626; }

.text-muted { color: var(--text-muted); font-size: 13px; }