/**
 * Gardener - Garden Planning Tool Styles
 */

/* ============================================
   CSS Custom Properties
   ============================================ */

:root {
    /* Colors - Natural Garden Theme */
    --color-primary: #2d5a27;
    --color-primary-light: #4a8c3f;
    --color-primary-dark: #1e3d1a;
    --color-secondary: #8b6914;
    --color-secondary-light: #b8922a;

    --color-success: #2d7a2d;
    --color-warning: #b8860b;
    --color-error: #c41e3a;
    --color-info: #2563eb;

    --color-bg: #faf9f7;
    --color-bg-alt: #f0efe9;
    --color-surface: #ffffff;
    --color-border: #d4d1c7;
    --color-border-light: #e8e6df;

    --color-text: #2c2c2c;
    --color-text-muted: #666666;
    --color-text-light: #888888;
    --color-text-inverse: #ffffff;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-mono: 'SF Mono', Consolas, 'Liberation Mono', Menlo, monospace;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;
}

/* ============================================
   Base Styles
   ============================================ */

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

html {
    font-size: 16px;
    line-height: 1.5;
}

body {
    margin: 0;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    color: var(--color-text);
    background-color: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
    margin: 0 0 var(--space-md) 0;
    font-weight: 600;
    line-height: 1.25;
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }

p {
    margin: 0 0 var(--space-md) 0;
}

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

a:hover {
    text-decoration: underline;
}

/* ============================================
   App Layout
   ============================================ */

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.app-header {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-title {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-xl);
    color: var(--color-primary);
    margin: 0;
}

.app-icon {
    font-size: 1.5em;
}

/* ============================================
   Navigation
   ============================================ */

.main-nav {
    display: flex;
    gap: var(--space-xs);
}

.nav-tab {
    background: transparent;
    border: none;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-muted);
    cursor: pointer;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-tab:hover {
    background: var(--color-bg-alt);
    color: var(--color-text);
}

.nav-tab.active {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.nav-tab-icon {
    padding: var(--space-sm);
}

/* ============================================
   Main Content
   ============================================ */

.main-content {
    flex: 1;
    padding: var(--space-lg);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.panel {
    display: none;
}

.panel.active {
    display: block;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.panel-header h2 {
    margin: 0;
}

.panel-actions {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.btn-primary {
    background: var(--color-primary);
    color: var(--color-text-inverse);
}

.btn-primary:hover:not(:disabled) {
    background: var(--color-primary-dark);
}

.btn-secondary {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--color-bg-alt);
}

.btn-danger {
    background: var(--color-error);
    color: var(--color-text-inverse);
}

.btn-danger:hover:not(:disabled) {
    background: #a3182e;
}

.btn-link {
    background: none;
    border: none;
    padding: 0;
    color: var(--color-primary);
    text-decoration: underline;
}

.btn-icon {
    padding: var(--space-sm);
    min-width: 36px;
    min-height: 36px;
}

/* ============================================
   Form Elements
   ============================================ */

input[type="text"],
input[type="number"],
input[type="search"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-size: var(--font-size-base);
    font-family: inherit;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-surface);
    transition: border-color var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(45, 90, 39, 0.1);
}

.search-bar {
    margin-bottom: var(--space-md);
}

.search-bar input {
    max-width: 400px;
}

.filter-bar {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
    align-items: center;
}

.filter-bar select {
    width: auto;
    min-width: 150px;
}

.checkbox-label,
.radio-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.radio-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.setting-group {
    margin-bottom: var(--space-lg);
}

.setting-label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-sm);
}

.date-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
}

.date-input-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.date-input-group span:first-child {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

.input-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.select-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
    max-width: 300px;
}

.select-group span {
    font-weight: 500;
    font-size: var(--font-size-sm);
}

/* ============================================
   Lists and Cards
   ============================================ */

.item-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-md);
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    transition: box-shadow var(--transition-fast);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-sm);
}

.card-title {
    font-weight: 600;
    font-size: var(--font-size-lg);
    margin: 0;
}

.card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-style: italic;
}

.card-body {
    font-size: var(--font-size-sm);
}

.card-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    margin-top: var(--space-md);
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border-light);
}

/* Seed Row */
.seed-row {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-md);
    align-items: center;
}

.seed-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.seed-name {
    font-weight: 600;
}

.seed-latin {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-style: italic;
}

.seed-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    display: flex;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.seed-actions {
    display: flex;
    gap: var(--space-sm);
}

/* ============================================
   Badges and Tags
   ============================================ */

.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-xs) var(--space-sm);
    font-size: var(--font-size-xs);
    font-weight: 500;
    border-radius: var(--radius-full);
    background: var(--color-bg-alt);
    color: var(--color-text-muted);
}

.badge-primary {
    background: rgba(45, 90, 39, 0.1);
    color: var(--color-primary);
}

.badge-native {
    background: rgba(139, 105, 20, 0.1);
    color: var(--color-secondary);
}

.badge-beginner {
    background: rgba(37, 99, 235, 0.1);
    color: var(--color-info);
}

.badge-intermediate {
    background: rgba(184, 134, 11, 0.1);
    color: var(--color-warning);
}

.badge-advanced {
    background: rgba(196, 30, 58, 0.1);
    color: var(--color-error);
}

/* ============================================
   Calendar View
   ============================================ */

.calendar-view {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.calendar-month {
    margin-bottom: var(--space-xl);
}

.calendar-month-header {
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--color-primary);
    padding-bottom: var(--space-sm);
    border-bottom: 2px solid var(--color-primary);
    margin-bottom: var(--space-md);
}

.calendar-event {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-border-light);
}

.calendar-event:last-child {
    border-bottom: none;
}

.calendar-event-date {
    font-weight: 500;
    min-width: 80px;
    color: var(--color-text-muted);
}

.calendar-event-content {
    flex: 1;
}

.calendar-event-icon {
    margin-right: var(--space-xs);
}

.year-selector {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
}

.year-selector select {
    width: auto;
}

/* ============================================
   Glossary
   ============================================ */

.glossary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-md);
}

.glossary-term {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-md);
}

.glossary-term-title {
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-sm);
}

.glossary-term-definition {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    line-height: 1.6;
}

.glossary-see-also {
    margin-top: var(--space-sm);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.glossary-see-also a {
    margin-left: var(--space-xs);
}

/* ============================================
   Settings
   ============================================ */

.settings-section {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.settings-section h3 {
    margin-bottom: var(--space-sm);
}

.section-description {
    color: var(--color-text-muted);
    margin-bottom: var(--space-lg);
}

.frost-estimate {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-top: var(--space-md);
}

.frost-estimate p {
    margin: var(--space-xs) 0;
}

.button-group {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.version-info {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* ============================================
   Warning Banner
   ============================================ */

.warning-banner {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    background: rgba(184, 134, 11, 0.1);
    border: 1px solid var(--color-warning);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-lg);
}

.warning-icon {
    font-size: var(--font-size-xl);
}

/* ============================================
   Empty State
   ============================================ */

.empty-state {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--color-text-muted);
}

/* ============================================
   Modal
   ============================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    z-index: 1000;
}

.modal-container {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

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

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    padding: var(--space-xs);
    color: var(--color-text-muted);
}

.modal-close:hover {
    color: var(--color-text);
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--color-border);
}

/* ============================================
   Form in Modal
   ============================================ */

.form-group {
    margin-bottom: var(--space-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: var(--space-xs);
    font-size: var(--font-size-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

/* ============================================
   Toast Notifications
   ============================================ */

.toast-container {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: 2000;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    transform: translateY(100%);
    opacity: 0;
    transition: all var(--transition-base);
}

.toast-visible {
    transform: translateY(0);
    opacity: 1;
}

.toast-hiding {
    transform: translateY(-20%);
    opacity: 0;
}

.toast-success {
    border-left: 4px solid var(--color-success);
}

.toast-warning {
    border-left: 4px solid var(--color-warning);
}

.toast-error {
    border-left: 4px solid var(--color-error);
}

.toast-info {
    border-left: 4px solid var(--color-info);
}

.toast-icon {
    font-size: var(--font-size-lg);
}

.toast-message {
    flex: 1;
}

.toast-action {
    background: none;
    border: none;
    color: var(--color-primary);
    font-weight: 500;
    cursor: pointer;
    padding: var(--space-xs) var(--space-sm);
}

.toast-close {
    background: none;
    border: none;
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-xs);
}

/* ============================================
   Utility Classes
   ============================================ */

.hidden {
    display: none !important;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

.text-muted {
    color: var(--color-text-muted);
}

.text-center {
    text-align: center;
}

.mt-md {
    margin-top: var(--space-md);
}

.mb-md {
    margin-bottom: var(--space-md);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .app-header {
        flex-direction: column;
        gap: var(--space-md);
    }

    .main-nav {
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
    }

    .nav-tab {
        flex-shrink: 0;
    }

    .main-content {
        padding: var(--space-md);
    }

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

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

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