/* Good Day, Bad Day — Stylesheet */
:root {
    --bg: #0f1117;
    --bg-card: #1a1d27;
    --bg-input: #242736;
    --border: #2d3044;
    --text: #e4e6f0;
    --text-muted: #8b8fa3;
    --green: #22c55e;
    --green-dim: rgba(34, 197, 94, 0.15);
    --red: #ef4444;
    --red-dim: rgba(239, 68, 68, 0.15);
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --radius: 12px;
    --radius-sm: 8px;
    --shadow: 0 2px 12px rgba(0,0,0,0.3);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* Navbar */
.navbar {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-brand { font-weight: 700; font-size: 1.1rem; }
.nav-links { display: flex; gap: 0.25rem; }
.nav-links a {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: all 0.2s;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); background: var(--bg-input); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.5rem; cursor: pointer; }

/* Container */
.container { max-width: 960px; margin: 0 auto; padding: 1.5rem; }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.card h2 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--text-muted); margin-bottom: 1rem; }

/* Greeting */
.greeting { margin-bottom: 1.5rem; }
.greeting h1 { font-size: 1.75rem; font-weight: 700; }
.greeting p { color: var(--text-muted); }

/* Day Strip */
.day-strip { display: flex; gap: 0.5rem; justify-content: space-between; }
.day-chip {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    width: 100%; padding: 0.75rem 0.5rem; border-radius: var(--radius-sm);
    background: var(--bg-input); border: 2px solid transparent; transition: all 0.2s; text-decoration: none; color: var(--text);
}
.day-chip.green { background: var(--green-dim); border-color: var(--green); }
.day-chip.red { background: var(--red-dim); border-color: var(--red); }
.day-chip:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.day-label { font-size: 0.7rem; text-transform: uppercase; color: var(--text-muted); }
.day-num { font-size: 1.25rem; font-weight: 700; }
.day-icon { font-size: 0.85rem; margin-top: 0.25rem; }
.day-chip.green .day-icon { color: var(--green); }
.day-chip.red .day-icon { color: var(--red); }

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 1.25rem; text-align: center;
}
.stat-value { font-size: 2rem; font-weight: 800; }
.stat-small { font-size: 1rem; font-weight: 400; color: var(--text-muted); }
.stat-label { font-size: 0.8rem; color: var(--text-muted); margin-top: 0.25rem; }

/* Week Summary */
.week-summary { display: flex; gap: 2rem; flex-wrap: wrap; }
.summary-item { display: flex; flex-direction: column; }
.summary-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.summary-value { font-size: 1.5rem; font-weight: 700; }
.summary-sub { font-size: 0.8rem; color: var(--text-muted); }

/* 28-Day Grid */
.grid-28 { display: grid; grid-template-columns: repeat(7, 1fr); gap: 6px; }
.grid-cell {
    aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
    border-radius: var(--radius-sm); background: var(--bg-input); font-size: 0.8rem;
    font-weight: 600; transition: all 0.2s; text-decoration: none; color: var(--text);
}
.grid-cell.green { background: var(--green-dim); color: var(--green); }
.grid-cell.red { background: var(--red-dim); color: var(--red); }
.grid-cell:hover { transform: scale(1.1); box-shadow: var(--shadow); }

/* Forms */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-muted); margin-bottom: 0.35rem; }
input[type="text"], input[type="password"], input[type="number"], input[type="email"] {
    width: 100%; padding: 0.7rem 1rem; background: var(--bg-input); border: 1px solid var(--border);
    border-radius: var(--radius-sm); color: var(--text); font-size: 0.95rem; transition: border-color 0.2s;
}
input:focus { outline: none; border-color: var(--accent); }

/* Buttons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; padding: 0.65rem 1.25rem;
    border: none; border-radius: var(--radius-sm); font-size: 0.9rem; font-weight: 600;
    cursor: pointer; transition: all 0.2s; text-decoration: none; color: var(--text);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); color: #fff; }
.btn-danger { background: var(--red); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }
.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.8rem; }
.btn-full { width: 100%; }

/* Alerts */
.alert { padding: 0.75rem 1rem; border-radius: var(--radius-sm); margin-bottom: 1rem; font-size: 0.9rem; }
.alert-success { background: var(--green-dim); color: var(--green); border: 1px solid var(--green); }
.alert-error { background: var(--red-dim); color: var(--red); border: 1px solid var(--red); }

/* Login Page */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 1rem; }
.login-card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 2.5rem; width: 100%; max-width: 400px; text-align: center;
}
.login-logo { font-size: 2.5rem; margin-bottom: 0.5rem; }
.login-card h1 { font-size: 1.5rem; margin-bottom: 0.25rem; }
.login-subtitle { color: var(--text-muted); margin-bottom: 1.5rem; }
.login-card .form-group { text-align: left; }

/* Log Page */
.date-nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.date-title { font-size: 1.25rem; text-align: center; flex: 1; }
.flag-badge {
    display: inline-block; font-size: 0.75rem; padding: 0.2rem 0.6rem; border-radius: 999px;
    font-weight: 600; margin-left: 0.5rem; vertical-align: middle;
}
.flag-badge.green { background: var(--green-dim); color: var(--green); }
.flag-badge.red { background: var(--red-dim); color: var(--red); }

.log-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }

/* Food */
.food-input-row { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.food-name-input { flex: 2; }
.food-num-input { flex: 1; max-width: 80px; }
.food-list { display: flex; flex-direction: column; gap: 0.5rem; margin-bottom: 1rem; }
.food-item {
    display: flex; align-items: center; gap: 0.75rem; padding: 0.6rem 0.75rem;
    background: var(--bg-input); border-radius: var(--radius-sm);
}
.food-name { flex: 1; font-weight: 500; }
.food-cal { font-size: 0.85rem; color: var(--accent); }
.food-pro { font-size: 0.85rem; color: var(--green); }
.inline-form { display: inline; }
.btn-delete {
    background: none; border: none; color: var(--text-muted); font-size: 1.2rem;
    cursor: pointer; padding: 0 0.25rem; line-height: 1;
}
.btn-delete:hover { color: var(--red); }
.food-totals { display: flex; gap: 2rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.total-item { display: flex; flex-direction: column; }
.total-item span { font-size: 0.8rem; color: var(--text-muted); }
.text-green { color: var(--green); }
.text-red { color: var(--red); }

/* Mood */
.mood-selector { display: flex; gap: 0.5rem; }
.mood-option { cursor: pointer; }
.mood-option input { display: none; }
.mood-emoji {
    display: flex; align-items: center; justify-content: center;
    width: 48px; height: 48px; font-size: 1.5rem;
    border-radius: var(--radius-sm); background: var(--bg-input); border: 2px solid transparent;
    transition: all 0.2s;
}
.mood-option input:checked + .mood-emoji { border-color: var(--accent); background: var(--bg); }
.mood-emoji:hover { transform: scale(1.1); }

/* Flag Override */
.checkbox-label { display: flex; align-items: center; gap: 0.5rem; cursor: pointer; font-size: 0.9rem; }
.flag-row { gap: 1rem; }
.flag-option { cursor: pointer; }
.flag-option input { display: none; }
.flag-label {
    display: inline-block; padding: 0.5rem 1rem; border-radius: var(--radius-sm);
    border: 2px solid transparent; font-weight: 600; transition: all 0.2s;
}
.flag-label.green { background: var(--green-dim); color: var(--green); }
.flag-label.red { background: var(--red-dim); color: var(--red); }
.flag-option input:checked + .flag-label.green { border-color: var(--green); }
.flag-option input:checked + .flag-label.red { border-color: var(--red); }

/* Favourites Bar */
.favourites-bar {
    display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem;
    margin: 0.75rem 0; padding: 0.75rem; background: var(--bg-input);
    border-radius: var(--radius-sm); border: 1px solid var(--border);
}
.favourites-label { font-size: 0.75rem; color: var(--text-muted); margin-right: 0.25rem; white-space: nowrap; }
.fav-chip {
    display: inline-flex; align-items: center; padding: 0.3rem 0.7rem;
    background: var(--bg-card); border: 1px solid var(--border); border-radius: 20px;
    color: var(--text); font-size: 0.8rem; cursor: pointer; transition: all 0.15s;
}
.fav-chip:hover { border-color: var(--accent); color: var(--accent); }
.btn-delete-fav {
    background: none; border: none; color: var(--text-muted); cursor: pointer;
    font-size: 0.9rem; padding: 0 0.1rem; line-height: 1; margin-left: -0.2rem;
    transition: color 0.15s;
}
.btn-delete-fav:hover { color: var(--red); }

/* Settings */
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; }
.settings-grid .card:last-child { grid-column: span 2; }
.api-key-display {
    display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem;
    background: var(--bg-input); border-radius: var(--radius-sm); margin-top: 0.5rem;
}
.api-key-display code { flex: 1; font-size: 0.8rem; word-break: break-all; color: var(--accent); }
.text-muted { color: var(--text-muted); font-size: 0.9rem; }
.empty-state { color: var(--text-muted); text-align: center; padding: 2rem 0; }

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; position: absolute; top: 60px; left: 0; right: 0; background: var(--bg-card); flex-direction: column; padding: 1rem; border-bottom: 1px solid var(--border); }
    .nav-links.open { display: flex; }
    .nav-toggle { display: block; }
    .stats-grid { grid-template-columns: 1fr; }
    .log-grid { grid-template-columns: 1fr; }
    .settings-grid { grid-template-columns: 1fr; }
    .settings-grid .card:last-child { grid-column: span 1; }
    .day-strip { gap: 0.25rem; }
    .day-chip { padding: 0.5rem 0.25rem; }
    .date-nav { flex-direction: column; text-align: center; }
    .week-summary { gap: 1rem; }
    .food-input-row { flex-wrap: wrap; }
    .food-name-input { flex: 1 1 100%; }
    .food-num-input { flex: 1; max-width: none; }
}