/* ===== FILE: assets/styles.css ===== */

/* Reset y variables */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --secondary: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --bg-light: #F9FAFB;
    --bg-white: #FFFFFF;
    --text-dark: #111827;
    --text-gray: #6B7280;
    --border: #E5E7EB;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-light);
    color: var(--text-dark);
    line-height: 1.6;
}

/* ===== LOGIN PAGE ===== */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 450px;
    padding: 20px;
}

.login-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.logo-section {
    text-align: center;
    margin-bottom: 30px;
}

.logo-section h1 {
    font-size: 2rem;
    color: var(--primary);
    margin-bottom: 8px;
}

.logo-section p {
    color: var(--text-gray);
    font-size: 0.95rem;
}

.auth-form h2 {
    font-size: 1.5rem;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: white;
    width: 100%;
}

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

.btn-secondary {
    background: var(--text-gray);
    color: white;
}

.btn-secondary:hover {
    background: var(--text-dark);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.toggle-form {
    text-align: center;
    margin-top: 20px;
    color: var(--text-gray);
    font-size: 0.9rem;
}

.toggle-form a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.toggle-form a:hover {
    text-decoration: underline;
}

.message {
    padding: 12px;
    border-radius: var(--radius);
    margin-top: 16px;
    display: none;
}

.message.error {
    background: #FEE2E2;
    color: #991B1B;
    border: 1px solid #FCA5A5;
}

.message.success {
    background: #D1FAE5;
    color: #065F46;
    border: 1px solid #6EE7B7;
}

.message.info {
    background: #DBEAFE;
    color: #1E40AF;
    border: 1px solid #93C5FD;
}

/* ===== DASHBOARD ===== */
.dashboard-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    padding: 16px 0;
    box-shadow: var(--shadow);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-content h1 {
    font-size: 1.5rem;
    color: var(--primary);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 16px;
}

.dashboard-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Tabs */
.tabs-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    background: var(--bg-white);
    padding: 8px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.tab-btn {
    flex: 1;
    padding: 12px 16px;
    border: none;
    background: transparent;
    color: var(--text-gray);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius);
    transition: all 0.2s;
}

.tab-btn:hover {
    background: var(--bg-light);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Cards */
.card {
    background: var(--bg-white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card h3 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--text-dark);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Rating buttons */
.rating-buttons {
    display: flex;
    gap: 8px;
}

.rating-buttons input[type="radio"] {
    display: none;
}

.rating-buttons label {
    flex: 1;
    padding: 10px;
    text-align: center;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.rating-buttons label:hover {
    border-color: var(--primary);
    background: var(--bg-light);
}

.rating-buttons input[type="radio"]:checked + label {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Macro Rings */
.macro-rings {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    text-align: center;
}

.macro-item p {
    margin-top: 8px;
    font-size: 0.875rem;
    color: var(--text-gray);
}

.ring-chart {
    position: relative;
    width: 100px;
    height: 100px;
    margin: 0 auto;
}

.ring-chart svg {
    transform: rotate(-90deg);
}

.ring-bg {
    fill: none;
    stroke: var(--border);
    stroke-width: 8;
}

.ring-progress {
    fill: none;
    stroke: var(--primary);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 251.2;
    stroke-dashoffset: 251.2;
    transition: stroke-dashoffset 0.5s ease;
}

.ring-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.75rem;
    text-align: center;
}

.ring-text .current {
    display: block;
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--text-dark);
}

.ring-text .total {
    color: var(--text-gray);
}

/* Food List */
.food-list {
    max-height: 400px;
    overflow-y: auto;
}

.food-item {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.food-item-info h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.food-item-info p {
    font-size: 0.875rem;
    color: var(--text-gray);
}

.food-item-macros {
    display: flex;
    gap: 12px;
    font-size: 0.875rem;
}

/* Workout Plan */
.workout-plan {
    display: grid;
    gap: 16px;
}

.workout-template {
    padding: 16px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
}

.workout-template h4 {
    margin-bottom: 8px;
    color: var(--text-dark);
}

.workout-template p {
    color: var(--text-gray);
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.workout-history {
    max-height: 400px;
    overflow-y: auto;
}

.workout-item {
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 8px;
}

.workout-item.completed {
    border-color: var(--secondary);
    background: #ECFDF5;
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.kpi-card {
    background: var(--bg-white);
    padding: 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.kpi-card h4 {
    font-size: 0.875rem;
    color: var(--text-gray);
    margin-bottom: 8px;
    font-weight: 500;
}

.kpi-value {
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary);
}

@media (max-width: 768px) {
    .kpi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .macro-rings {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Weight Chart */
.weight-chart {
    padding: 20px 0;
    min-height: 200px;
}

.chart-bar {
    display: inline-block;
    width: 20px;
    background: var(--primary);
    margin: 0 2px;
    border-radius: 4px 4px 0 0;
    vertical-align: bottom;
}

/* Photo Gallery */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
    margin-top: 16px;
}

.photo-item {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.photo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-item-label {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 4px 8px;
    font-size: 0.75rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--text-dark);
    color: white;
    padding: 16px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s;
    z-index: 1000;
}

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

.toast.success {
    background: var(--secondary);
}

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