/* ===== 盆栽植物栽培系統 - 響應式設計 ===== */
:root {
    --primary: #2d6a4f;
    --primary-light: #40916c;
    --primary-dark: #1b4332;
    --secondary: #95d5b2;
    --accent: #b7e4c7;
    --warning: #e9c46a;
    --danger: #e76f51;
    --info: #457b9d;
    --bg: #f0f7f4;
    --bg-card: #ffffff;
    --text: #2d3436;
    --text-light: #636e72;
    --border: #dfe6e9;
    --shadow: 0 2px 12px rgba(45, 106, 79, 0.08);
    --shadow-hover: 0 6px 24px rgba(45, 106, 79, 0.15);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.3s ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', 'Microsoft JhengHei', '微軟正黑體', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ===== Navbar ===== */
.navbar {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    padding: 0 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: #fff;
    font-size: 1.3rem;
    font-weight: 700;
}

.navbar-brand .brand-icon {
    font-size: 1.6rem;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 0.25rem;
}

.navbar-nav a {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-size: 0.95rem;
    font-weight: 500;
}

.navbar-nav a:hover,
.navbar-nav a.active {
    background: rgba(255,255,255,0.15);
    color: #fff;
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    max-width: 1280px;
    width: 100%;
    margin: 0 auto;
    padding: 1.5rem;
}

/* ===== Cards ===== */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.card-header {
    padding: 1rem 1.25rem;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    color: #fff;
    font-weight: 600;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    padding: 0.75rem 1.25rem;
    background: #f8faf9;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ===== Stats Cards ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.stat-icon.green { background: rgba(45, 106, 79, 0.12); color: var(--primary); }
.stat-icon.blue { background: rgba(69, 123, 157, 0.12); color: var(--info); }
.stat-icon.orange { background: rgba(233, 196, 106, 0.15); color: #e67e22; }
.stat-icon.red { background: rgba(231, 111, 81, 0.12); color: var(--danger); }

.stat-info h3 {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--text);
}

.stat-info p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
}

/* ===== Plant Grid ===== */
.plant-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.25rem;
}

.plant-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
}

.plant-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-3px);
}

.plant-card-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.plant-card-placeholder {
    width: 100%;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    color: var(--primary-dark);
}

.plant-card-body {
    padding: 1rem 1.25rem;
}

.plant-card-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.plant-card-body .scientific-name {
    font-size: 0.82rem;
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 0.5rem;
}

.plant-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.plant-card-actions {
    padding: 0.75rem 1.25rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ===== Badges ===== */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 500;
    white-space: nowrap;
}

.badge-success { background: rgba(45, 106, 79, 0.12); color: var(--primary); }
.badge-warning { background: rgba(233, 196, 106, 0.2); color: #b8860b; }
.badge-danger { background: rgba(231, 111, 81, 0.15); color: var(--danger); }
.badge-info { background: rgba(69, 123, 157, 0.12); color: var(--info); }
.badge-secondary { background: rgba(99, 110, 114, 0.1); color: var(--text-light); }

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; }

.btn-secondary {
    background: #f0f0f0;
    color: var(--text);
}
.btn-secondary:hover { background: #e0e0e0; }

.btn-success {
    background: var(--primary-light);
    color: #fff;
}
.btn-success:hover { background: var(--primary); color: #fff; }

.btn-danger {
    background: var(--danger);
    color: #fff;
}
.btn-danger:hover { background: #c0392b; color: #fff; }

.btn-warning {
    background: var(--warning);
    color: var(--text);
}
.btn-warning:hover { background: #d4a72c; }

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--primary);
    color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: #fff; }

.btn-sm {
    padding: 0.3rem 0.7rem;
    font-size: 0.82rem;
}

.btn-lg {
    padding: 0.7rem 1.5rem;
    font-size: 1rem;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.35rem;
    color: var(--text);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.6rem 0.85rem;
    border: 1.5px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    transition: var(--transition);
    background: #fff;
    color: var(--text);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(45, 106, 79, 0.1);
}

.form-control::placeholder {
    color: #b2bec3;
}

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636e72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2rem;
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.form-text {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 0.25rem;
}

.text-danger {
    color: var(--danger);
    font-size: 0.82rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
}

/* ===== Tables ===== */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.92rem;
}

.table th {
    background: #f8faf9;
    padding: 0.75rem 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
}

.table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.table tbody tr:hover {
    background: rgba(45, 106, 79, 0.03);
}

/* ===== Alerts ===== */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.92rem;
}

.alert-success {
    background: rgba(45, 106, 79, 0.1);
    color: var(--primary-dark);
    border: 1px solid rgba(45, 106, 79, 0.2);
}

.alert-danger {
    background: rgba(231, 111, 81, 0.1);
    color: #c0392b;
    border: 1px solid rgba(231, 111, 81, 0.2);
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.page-header h1 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary-dark);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===== Filter Bar ===== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    padding: 1rem;
    background: var(--bg-card);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    align-items: end;
}

.filter-bar .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 160px;
}

/* ===== Section ===== */
.section-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-dark);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* ===== Recent Activity ===== */
.activity-list {
    list-style: none;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
    background: rgba(45, 106, 79, 0.1);
    color: var(--primary);
}

.activity-content {
    flex: 1;
}

.activity-content strong {
    color: var(--primary-dark);
}

.activity-date {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* ===== Detail Page ===== */
.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.detail-item {
    padding: 0.5rem 0;
}

.detail-label {
    font-size: 0.82rem;
    color: var(--text-light);
    margin-bottom: 0.15rem;
}

.detail-value {
    font-weight: 500;
    font-size: 0.95rem;
}

/* ===== Footer ===== */
.footer {
    background: var(--primary-dark);
    color: rgba(255,255,255,0.7);
    text-align: center;
    padding: 1rem;
    font-size: 0.85rem;
    margin-top: auto;
}

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-light);
}

.empty-state .empty-icon {
    font-size: 3rem;
    margin-bottom: 0.75rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1rem;
    margin-bottom: 1rem;
}

/* ===== Utility ===== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.d-flex { display: flex; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }

/* ===== Modal / Confirm ===== */
.confirm-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.confirm-overlay.show {
    opacity: 1;
    visibility: visible;
}

.confirm-box {
    background: #fff;
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.confirm-box h3 {
    margin-bottom: 0.5rem;
}

.confirm-box p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.confirm-actions {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

/* ===== Responsive - Tablet ===== */
@media (max-width: 768px) {
    html { font-size: 15px; }

    .navbar-nav {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--primary-dark);
        flex-direction: column;
        padding: 0.5rem;
        box-shadow: 0 4px 12px rgba(0,0,0,0.2);
    }

    .navbar-nav.show {
        display: flex;
    }

    .navbar-nav a {
        padding: 0.75rem 1rem;
    }

    .navbar-toggle {
        display: block;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-header h1 {
        font-size: 1.35rem;
    }

    .plant-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }

    .detail-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .filter-bar {
        flex-direction: column;
    }

    .filter-bar .form-group {
        min-width: 100%;
    }
}

/* ===== Responsive - Mobile ===== */
@media (max-width: 480px) {
    html { font-size: 14px; }

    .main-content {
        padding: 1rem 0.75rem;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .plant-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-icon {
        width: 44px;
        height: 44px;
        font-size: 1.2rem;
    }

    .stat-info h3 {
        font-size: 1.3rem;
    }

    .table th, .table td {
        padding: 0.5rem 0.6rem;
        font-size: 0.85rem;
    }

    .card-header {
        font-size: 0.95rem;
        padding: 0.75rem 1rem;
    }

    .card-body {
        padding: 1rem;
    }

    .btn {
        padding: 0.45rem 0.8rem;
        font-size: 0.85rem;
    }
}

/* ===== Print ===== */
@media print {
    .navbar, .footer, .btn, .filter-bar { display: none !important; }
    .card { box-shadow: none; border: 1px solid #ddd; }
    body { background: #fff; }
}