/* Wellness & Vodka Tracker - Styles */

/* CSS Variables */
:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #1a1a1a;
    --bg-card: #242424;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --vodka: #38bdf8;
    --vodka-dark: #0284c7;
    --citrus: #fbbf24;
    --citrus-dark: #d97706;
    --success: #22c55e;
    --danger: #ef4444;
    --border-radius: 12px;
    --transition: all 0.2s ease;
}

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

/* Base */
html {
    font-size: 16px;
}

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

/* App Container */
.app-container {
    max-width: 480px;
    margin: 0 auto;
    padding: 0 16px 100px;
}

/* Header */
.header {
    text-align: center;
    padding: 24px 0 16px;
}

.header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--vodka), var(--citrus));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 4px;
}

/* Navigation Tabs */
.tabs {
    display: flex;
    gap: 8px;
    background: var(--bg-secondary);
    padding: 6px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.tab {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

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

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

/* Tab Content */
.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Date Display */
.date-display {
    text-align: center;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    margin-bottom: 16px;
    font-weight: 500;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 16px;
}

.card h2 {
    font-size: 1.125rem;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.vodka-card {
    border-left: 3px solid var(--vodka);
}

.vodka-card h2 {
    color: var(--vodka);
}

.citrus-card {
    border-left: 3px solid var(--citrus);
}

.citrus-card h2 {
    color: var(--citrus);
}

/* Input Groups */
.input-group {
    margin-bottom: 16px;
}

.input-group:last-child {
    margin-bottom: 0;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

/* Text Inputs */
input[type="text"],
input[type="number"],
textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: var(--bg-primary);
}

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

/* Emoji Picker */
.emoji-picker {
    display: flex;
    gap: 8px;
    justify-content: space-between;
}

.emoji-btn {
    flex: 1;
    padding: 12px 8px;
    font-size: 1.5rem;
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.emoji-btn:hover {
    background: var(--bg-primary);
    transform: scale(1.1);
}

.emoji-btn.selected {
    border-color: var(--accent);
    background: var(--bg-primary);
}

/* Counter */
.counter {
    display: flex;
    align-items: center;
    gap: 12px;
}

.counter input {
    width: 80px;
    text-align: center;
    font-size: 1.25rem;
    font-weight: 600;
}

.counter-btn {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.counter-btn:hover {
    background: var(--accent);
}

.counter-btn:active {
    transform: scale(0.95);
}

/* Mixer Options */
.mixer-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.mixer-btn {
    padding: 8px 16px;
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.mixer-btn.selected {
    border-color: var(--vodka);
    color: var(--vodka);
    background: var(--bg-primary);
}

/* Citrus Picker */
.citrus-picker {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}

.citrus-btn {
    width: 56px;
    height: 56px;
    font-size: 2rem;
    background: var(--bg-secondary);
    border: 2px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.citrus-btn:hover {
    transform: scale(1.1);
}

.citrus-btn.selected {
    border-color: var(--citrus);
    background: var(--bg-primary);
}

.citrus-btn .count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--citrus);
    color: var(--bg-primary);
    font-size: 0.75rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.citrus-count {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Toggle Switch */
.toggle {
    position: relative;
    display: inline-block;
    width: 52px;
    height: 28px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    border-radius: 28px;
    transition: var(--transition);
}

.toggle-slider::before {
    position: absolute;
    content: "";
    height: 20px;
    width: 20px;
    left: 4px;
    bottom: 4px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: var(--transition);
}

.toggle input:checked + .toggle-slider {
    background: var(--citrus);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(24px);
    background: var(--bg-primary);
}

/* Save Button */
.save-btn {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--accent), var(--vodka));
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 8px;
}

.save-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.save-btn:active {
    transform: translateY(0);
}

/* History Section */
.history-controls {
    display: flex;
    justify-content: flex-end;
    margin-bottom: 16px;
}

.danger-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--danger);
    border-radius: 8px;
    color: var(--danger);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.history-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.history-entry {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 16px;
    cursor: pointer;
    transition: var(--transition);
}

.history-entry:hover {
    transform: translateX(4px);
    border-left: 3px solid var(--accent);
}

.history-entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.history-entry-date {
    font-weight: 600;
}

.history-entry-delete {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px 8px;
    font-size: 0.875rem;
    transition: var(--transition);
}

.history-entry-delete:hover {
    color: var(--danger);
}

.history-entry-summary {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.875rem;
}

.history-entry-summary span {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-secondary);
}

.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 12px;
}

/* Stats Section */
.stats-period {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
}

.period-btn {
    flex: 1;
    padding: 10px;
    background: var(--bg-secondary);
    border: none;
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.period-btn:hover {
    color: var(--text-primary);
}

.period-btn.active {
    background: var(--accent);
    color: var(--text-primary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 16px;
    text-align: center;
}

.stat-icon {
    font-size: 1.5rem;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.vodka-stat .stat-value {
    color: var(--vodka);
}

.citrus-stat .stat-value {
    color: var(--citrus);
}

.insight-card {
    background: linear-gradient(135deg, var(--bg-card), var(--bg-secondary));
    border: 1px solid var(--accent);
}

.insight-card h3 {
    color: var(--accent);
    font-size: 0.875rem;
    margin-bottom: 8px;
}

.insight-card p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

/* Toast Notification */
.toast {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--success);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.toast.error {
    background: var(--danger);
}

/* Responsive adjustments */
@media (min-width: 480px) {
    .app-container {
        padding: 0 24px 100px;
    }

    .header h1 {
        font-size: 2rem;
    }
}

/* Desktop */
@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* PWA/Mobile optimizations */
@media (display-mode: standalone) {
    .header {
        padding-top: env(safe-area-inset-top, 24px);
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Selection */
::selection {
    background: var(--accent);
    color: var(--text-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}