/* ========================================
   Lance's Garden — Botanical Dark Theme
   ======================================== */

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

:root {
    --bg:            #080f0d;
    --surface:       #0f1b16;
    --surface2:      #162620;
    --surface3:      #1e3329;
    --border:        #264537;
    --text:          #e2ede7;
    --text-dim:      #6b9a82;
    --green:         #4ade80;
    --green-light:   #86efac;
    --green-dark:    #166534;
    --green-glow:    rgba(74, 222, 128, 0.15);
    --emerald:       #34d399;
    --amber:         #fbbf24;
    --sky:           #38bdf8;
    --rose:          #fb7185;
    --earth:         #a8845c;
    --purple:        #a78bfa;
    --success:       #10b981;
    --error:         #ef4444;
    --radius:        12px;
    --radius-sm:     8px;
    --radius-lg:     16px;
    --shadow:        0 4px 24px rgba(0,0,0,0.4);
    --shadow-lg:     0 8px 40px rgba(0,0,0,0.6);
    --transition:    0.2s ease;
}

html {
    font-size: 15px;
    scroll-behavior: smooth;
}

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

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

/* ========== Leaf Particles ========== */
.leaf-particles {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.leaf {
    position: absolute;
    font-size: 1.2rem;
    opacity: 0.12;
    animation: leafFall linear infinite;
    will-change: transform;
}

@keyframes leafFall {
    0% { transform: translateY(-5vh) rotate(0deg); opacity: 0; }
    10% { opacity: 0.12; }
    90% { opacity: 0.12; }
    100% { transform: translateY(105vh) rotate(360deg); opacity: 0; }
}

/* ========== Header ========== */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: rgba(8, 15, 13, 0.85);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.logo-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 0 8px rgba(74, 222, 128, 0.4));
}

.logo-text {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.accent {
    color: var(--green);
}

.plant-count {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8rem;
    color: var(--text-dim);
    background: var(--surface2);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    border: 1px solid var(--border);
}

.btn-icon {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    cursor: pointer;
    font-size: 1.2rem;
    transition: var(--transition);
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon:hover {
    background: var(--surface3);
    border-color: var(--green);
}

/* ========== Layout ========== */
.app-layout {
    display: grid;
    grid-template-columns: 340px 1fr;
    min-height: calc(100vh - 56px);
    position: relative;
    z-index: 1;
}

/* ========== Sidebar ========== */
.sidebar {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border-right: 1px solid var(--border);
    height: calc(100vh - 56px);
    position: sticky;
    top: 56px;
    overflow: hidden;
}

.sidebar-toggle {
    display: none;
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    z-index: 200;
    background: var(--green-dark);
    border: 2px solid var(--green);
    border-radius: 50%;
    width: 52px;
    height: 52px;
    font-size: 1.4rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(74, 222, 128, 0.3);
    transition: var(--transition);
}

.sidebar-toggle:hover {
    transform: scale(1.1);
}

/* Search */
.search-section {
    padding: 1rem;
    position: relative;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0 0.75rem;
    transition: var(--transition);
}

.search-box:focus-within {
    border-color: var(--green);
    box-shadow: 0 0 0 3px var(--green-glow);
}

.search-icon {
    font-size: 0.9rem;
    margin-right: 0.5rem;
    opacity: 0.6;
}

.search-box input {
    flex: 1;
    background: none;
    border: none;
    color: var(--text);
    font-family: inherit;
    font-size: 0.9rem;
    padding: 0.7rem 0;
    outline: none;
}

.search-box input::placeholder {
    color: var(--text-dim);
    opacity: 0.6;
}

.search-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--green);
    border-radius: 50%;
    display: none;
    animation: spin 0.6s linear infinite;
}

.search-spinner.active { display: block; }

@keyframes spin { to { transform: rotate(360deg); } }

.search-results {
    position: absolute;
    top: calc(100% - 0.25rem);
    left: 1rem;
    right: 1rem;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    max-height: 320px;
    overflow-y: auto;
    display: none;
    z-index: 50;
    box-shadow: var(--shadow-lg);
}

.search-results.active { display: block; }

.search-result-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
}

.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--surface3); }

.search-result-emoji { font-size: 1.4rem; }

.search-result-info h4 {
    font-size: 0.9rem;
    font-weight: 600;
}

.search-result-info p {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-top: 0.1rem;
}

/* Garden List */
.garden-section {
    flex: 1;
    overflow-y: auto;
    padding: 0 1rem;
    min-height: 0;
}

.section-title {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.garden-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.garden-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.75rem;
    background: var(--surface2);
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    animation: slideUp 0.3s ease;
}

.garden-item:hover {
    background: var(--surface3);
    border-color: var(--border);
}

.garden-item.active {
    background: var(--surface3);
    border-color: var(--green);
    box-shadow: inset 3px 0 0 var(--green);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.garden-item-emoji { font-size: 1.3rem; }

.garden-item-info {
    flex: 1;
    min-width: 0;
}

.garden-item-info h4 {
    font-size: 0.85rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.garden-item-info p {
    font-size: 0.7rem;
    color: var(--text-dim);
}

.garden-item-delete {
    background: none;
    border: none;
    color: var(--text-dim);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: 4px;
    font-size: 0.8rem;
    opacity: 0;
    transition: var(--transition);
}

.garden-item:hover .garden-item-delete { opacity: 1; }
.garden-item-delete:hover { color: var(--rose); background: rgba(251, 113, 133, 0.1); }

.empty-garden {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-dim);
}

.empty-icon {
    font-size: 2.5rem;
    display: block;
    margin-bottom: 0.75rem;
    filter: grayscale(0.3);
}

.empty-garden p {
    font-size: 0.85rem;
    margin-top: 0.25rem;
}

/* Chat */
.chat-section {
    border-top: 1px solid var(--border);
    padding: 0.75rem 1rem;
    display: flex;
    flex-direction: column;
    max-height: 320px;
    min-height: 200px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    padding: 0.5rem 0;
    min-height: 0;
}

.chat-bubble {
    display: flex;
    gap: 0.5rem;
    animation: fadeIn 0.3s ease;
}

.chat-bubble.user {
    flex-direction: row-reverse;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

.bubble-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--surface3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.chat-bubble.user .bubble-avatar {
    background: var(--green-dark);
}

.bubble-content {
    background: var(--surface2);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.75rem;
    max-width: 85%;
    font-size: 0.82rem;
    line-height: 1.5;
    border: 1px solid var(--border);
}

.chat-bubble.user .bubble-content {
    background: var(--green-dark);
    border-color: var(--green);
    color: var(--green-light);
}

.bubble-content p { margin: 0; }
.bubble-content strong { color: var(--green-light); }
.bubble-content ul, .bubble-content ol { padding-left: 1.2rem; margin: 0.3rem 0; }
.bubble-content li { margin: 0.15rem 0; }
.bubble-content h1, .bubble-content h2, .bubble-content h3, .bubble-content h4 {
    color: var(--green);
    margin: 0.5rem 0 0.25rem;
    font-size: 0.9rem;
}

.chat-input-area {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.chat-input-area input {
    flex: 1;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.75rem;
    color: var(--text);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    transition: var(--transition);
}

.chat-input-area input:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px var(--green-glow);
}

.btn-send {
    background: var(--green-dark);
    border: 1px solid var(--green);
    border-radius: var(--radius-sm);
    color: var(--green);
    width: 38px;
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.btn-send:hover {
    background: var(--green);
    color: var(--bg);
}

/* ========== Main Content ========== */
.main-content {
    padding: 1.5rem 2rem;
    overflow-y: auto;
    height: calc(100vh - 56px);
    position: relative;
}

/* Welcome Screen */
.welcome-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
}

.welcome-inner {
    text-align: center;
    max-width: 700px;
}

.welcome-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 0 20px rgba(74, 222, 128, 0.3));
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.welcome-inner h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
}

.welcome-inner > p {
    color: var(--text-dim);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 2rem;
}

.feature-card {
    cursor: pointer;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--green);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.feature-icon {
    font-size: 1.8rem;
    display: block;
    margin-bottom: 0.5rem;
}

.feature-card h3 {
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
    color: var(--green-light);
}

.feature-card p {
    font-size: 0.78rem;
    color: var(--text-dim);
}

.welcome-cta {
    color: var(--text-dim);
    font-style: italic;
}

/* Plant Detail */
.plant-detail {
    animation: fadeIn 0.3s ease;
}

.plant-header {
    background: linear-gradient(135deg, var(--surface), var(--surface2));
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.plant-header-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.plant-emoji {
    font-size: 3rem;
    filter: drop-shadow(0 0 12px rgba(74, 222, 128, 0.3));
}

.plant-name {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    font-weight: 700;
}

.plant-scientific {
    font-style: italic;
    color: var(--text-dim);
    font-size: 0.9rem;
}

.plant-meta {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.4rem;
    flex-wrap: wrap;
}

.badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.7rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    background: var(--green-dark);
    color: var(--green-light);
    border: 1px solid var(--green);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.badge-location {
    background: rgba(56, 189, 248, 0.1);
    color: var(--sky);
    border-color: var(--sky);
}

.badge-date {
    background: var(--surface);
    color: var(--text-dim);
    border-color: var(--border);
}

.plant-description {
    color: var(--text-dim);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.25rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.3rem;
    margin-bottom: 1.25rem;
    overflow-x: auto;
    flex-wrap: nowrap;
}

.tab {
    flex: 1;
    min-width: fit-content;
    background: none;
    border: none;
    color: var(--text-dim);
    padding: 0.55rem 0.75rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    transition: var(--transition);
    white-space: nowrap;
}

.tab:hover {
    color: var(--text);
    background: var(--surface2);
}

.tab.active {
    background: var(--green-dark);
    color: var(--green-light);
    font-weight: 600;
}

.tab-content {
    animation: fadeIn 0.2s ease;
}

/* Care Cards */
.care-section {
    animation: fadeIn 0.3s ease;
}

.care-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.care-header-icon {
    font-size: 2rem;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.care-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
}

.care-header p {
    color: var(--text-dim);
    font-size: 0.85rem;
}

.care-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.care-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    transition: var(--transition);
}

.care-card:hover {
    border-color: var(--green);
    transform: translateY(-1px);
}

.care-card-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
    margin-bottom: 0.3rem;
}

.care-card-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--green-light);
}

.care-tips {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
}

.care-tips h4 {
    font-size: 0.85rem;
    color: var(--green);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.care-tips ul {
    list-style: none;
    padding: 0;
}

.care-tips li {
    padding: 0.35rem 0;
    padding-left: 1.2rem;
    position: relative;
    font-size: 0.85rem;
    color: var(--text);
    border-bottom: 1px solid var(--border);
}

.care-tips li:last-child { border-bottom: none; }

.care-tips li::before {
    content: '🌱';
    position: absolute;
    left: 0;
    font-size: 0.7rem;
}

/* Level Meter */
.level-meter {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0.75rem 0;
}

.level-bar {
    flex: 1;
    height: 8px;
    background: var(--surface2);
    border-radius: 4px;
    overflow: hidden;
}

.level-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.level-fill.water { background: linear-gradient(90deg, var(--sky), #7dd3fc); }
.level-fill.sun { background: linear-gradient(90deg, var(--amber), #fcd34d); }
.level-fill.humidity { background: linear-gradient(90deg, var(--emerald), var(--green-light)); }

.level-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-dim);
    min-width: 60px;
}

/* Growth Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0.65rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--green), var(--green-dark));
    border-radius: 1px;
}

.timeline-item {
    position: relative;
    padding: 0.75rem 0;
    padding-left: 1rem;
    animation: fadeIn 0.3s ease;
}

.timeline-dot {
    position: absolute;
    left: -1.6rem;
    top: 1rem;
    width: 12px;
    height: 12px;
    background: var(--green);
    border-radius: 50%;
    border: 2px solid var(--bg);
    box-shadow: 0 0 8px var(--green-glow);
}

.timeline-item h4 {
    font-size: 0.9rem;
    color: var(--green-light);
    margin-bottom: 0.15rem;
}

.timeline-duration {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: var(--text-dim);
    margin-bottom: 0.3rem;
}

.timeline-item p {
    font-size: 0.82rem;
    color: var(--text);
}

.timeline-care {
    font-size: 0.78rem;
    color: var(--emerald);
    font-style: italic;
    margin-top: 0.2rem;
}

/* Pest Cards */
.pest-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: var(--transition);
}

.pest-card:hover {
    border-color: var(--rose);
}

.pest-card h4 {
    color: var(--rose);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.pest-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    font-size: 0.82rem;
}

.pest-detail-item label {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-dim);
    margin-bottom: 0.15rem;
}

/* Seasonal Grid */
.seasonal-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.season-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    transition: var(--transition);
}

.season-card.current {
    border-color: var(--green);
    box-shadow: 0 0 16px var(--green-glow);
}

.season-card h4 {
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.season-card p {
    font-size: 0.82rem;
    color: var(--text-dim);
    line-height: 1.5;
}

/* Problems */
.problem-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    margin-bottom: 0.75rem;
}

.problem-card .symptom {
    color: var(--amber);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 0.4rem;
}

.problem-card .cause {
    font-size: 0.82rem;
    color: var(--text-dim);
    margin-bottom: 0.3rem;
}

.problem-card .solution {
    font-size: 0.82rem;
    color: var(--emerald);
}

/* Troubleshooter */
.troubleshooter {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.troubleshooter h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
    margin-bottom: 0.3rem;
}

.troubleshooter-input {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 0.75rem;
}

.troubleshooter textarea,
.notes-section textarea {
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.75rem;
    color: var(--text);
    font-family: inherit;
    font-size: 0.85rem;
    resize: vertical;
    min-height: 80px;
    outline: none;
    transition: var(--transition);
}

.troubleshooter textarea:focus,
.notes-section textarea:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px var(--green-glow);
}

.diagnosis-result {
    margin-top: 1rem;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    font-size: 0.85rem;
    line-height: 1.6;
}

.diagnosis-result h1, .diagnosis-result h2, .diagnosis-result h3, .diagnosis-result h4 {
    color: var(--green);
    margin: 0.75rem 0 0.3rem;
}

.diagnosis-result ul, .diagnosis-result ol {
    padding-left: 1.5rem;
}

.diagnosis-result li {
    margin: 0.2rem 0;
}

.diagnosis-result strong {
    color: var(--green-light);
}

/* Notes */
.notes-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-top: 1rem;
}

.notes-section h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

/* Buttons */
.btn-primary {
    background: var(--green-dark);
    color: var(--green-light);
    border: 1px solid var(--green);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.25rem;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-primary:hover {
    background: var(--green);
    color: var(--bg);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: var(--surface2);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 1.25rem;
    font-family: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--surface3);
    border-color: var(--text-dim);
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 440px;
    max-width: 95vw;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.2rem;
}

.btn-close {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0.25rem;
    line-height: 1;
    transition: var(--transition);
}

.btn-close:hover { color: var(--rose); }

.modal-body {
    padding: 1.5rem;
}

.modal-plant-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    padding: 0.75rem;
    background: var(--surface2);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
}

.modal-plant-emoji { font-size: 2rem; }

.modal-plant-info h4 {
    font-size: 1rem;
    color: var(--green-light);
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    margin-bottom: 0.4rem;
    color: var(--text);
}

.form-group input, .form-group textarea {
    width: 100%;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.6rem 0.75rem;
    color: var(--text);
    font-family: inherit;
    font-size: 0.85rem;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--green);
    box-shadow: 0 0 0 3px var(--green-glow);
}

.form-group textarea {
    resize: vertical;
    min-height: 60px;
}

.location-selector {
    display: flex;
    gap: 0.5rem;
}

.loc-btn {
    flex: 1;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
    color: var(--text-dim);
    font-family: inherit;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.loc-btn:hover { border-color: var(--text-dim); color: var(--text); }

.loc-btn.active {
    background: var(--green-dark);
    border-color: var(--green);
    color: var(--green-light);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
}

.btn-leaf {
    display: inline-block;
    animation: pulse 1.5s ease-in-out infinite;
}

/* Loading */
.loading-overlay {
    position: absolute;
    inset: 0;
    background: rgba(8, 15, 13, 0.85);
    backdrop-filter: blur(4px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 50;
    border-radius: var(--radius-lg);
}

.loading-leaf {
    font-size: 3rem;
    animation: spin 2s linear infinite;
    margin-bottom: 1rem;
}

.loading-overlay p {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Companion Plants */
.companion-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.companion-tag {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0.3rem 0.75rem;
    font-size: 0.8rem;
    color: var(--emerald);
    transition: var(--transition);
}

.companion-tag:hover {
    border-color: var(--emerald);
}

/* Utility */
.text-dim { color: var(--text-dim); }
.text-green { color: var(--green); }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.5rem; }

/* ========== Responsive ========== */
@media (max-width: 900px) {
    .app-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        position: fixed;
        left: -360px;
        top: 56px;
        width: 340px;
        height: calc(100vh - 56px);
        z-index: 150;
        transition: left 0.3s ease;
        box-shadow: var(--shadow-lg);
    }

    .sidebar.open { left: 0; }

    .sidebar-toggle { display: flex; align-items: center; justify-content: center; }

    .main-content {
        padding: 1rem;
    }

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

    .care-cards {
        grid-template-columns: 1fr;
    }

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

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

    .tabs {
        overflow-x: auto;
    }
}

@media (max-width: 500px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }

    .welcome-inner h2 {
        font-size: 1.6rem;
    }

    .plant-name {
        font-size: 1.3rem;
    }
}