/* ============================================
   DESIGN SYSTEM - PrecioAlmendra
   Mobile-first, clean, fast
   ============================================ */

/* --- CSS Variables --- */
:root {
    --color-primary: #1B5E20;
    --color-primary-light: #2E7D32;
    --color-primary-dark: #0D3B0F;
    --color-accent: #C8A96E;
    --color-accent-light: #DFC08A;

    --color-up: #2E7D32;
    --color-down: #C62828;
    --color-neutral: #757575;

    --color-bg: #F5F7FA;
    --color-bg-alt: #FFFFFF;
    --color-card: #FFFFFF;
    --color-border: #E0E4E8;

    --color-text: #1A1A2E;
    --color-text-secondary: #5A6275;
    --color-text-muted: #8E95A5;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.2s ease;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
    --color-bg: #0F1419;
    --color-bg-alt: #1A1F2E;
    --color-card: #1E2433;
    --color-border: #2A3040;
    --color-text: #E8ECF1;
    --color-text-secondary: #9AA5B4;
    --color-text-muted: #6B7585;
    --color-primary: #4CAF50;
    --color-primary-light: #66BB6A;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.4);
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select { font-family: inherit; }
table { border-collapse: collapse; width: 100%; }

/* --- Container --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 16px;
}
@media (min-width: 768px) {
    .container { padding: 0 24px; }
}

/* ============================================
   HEADER
   ============================================ */
.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
}
.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
}
.header__logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
}
.header__icon { width: 28px; height: 28px; }
.header__nav {
    display: none;
    gap: 4px;
}
.header__link {
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    transition: all var(--transition);
}
.header__link:hover { color: var(--color-primary); background: rgba(27,94,32,0.06); }
.header__link--active { color: var(--color-primary); background: rgba(27,94,32,0.1); }
.header__actions { display: flex; align-items: center; gap: 8px; }

@media (min-width: 768px) {
    .header__nav { display: flex; }
    .btn-hamburger { display: none; }
}

/* Mobile nav */
.header__nav--open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--color-card);
    border-bottom: 1px solid var(--color-border);
    padding: 12px 16px;
    box-shadow: var(--shadow-md);
}
.header__nav--open .header__link {
    padding: 12px 16px;
    font-size: 1rem;
}

/* Theme toggle */
.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--color-text-secondary);
    transition: all var(--transition);
}
.btn-icon:hover { background: var(--color-bg); color: var(--color-text); }
.btn-icon svg { width: 20px; height: 20px; }
.icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* Hamburger */
.btn-hamburger {
    width: 40px; height: 40px;
    display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 5px;
}
.btn-hamburger span {
    width: 20px; height: 2px;
    background: var(--color-text-secondary);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    padding: 32px 0 24px;
    text-align: center;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: #fff;
}
.hero__title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.hero__subtitle {
    font-size: 1rem;
    opacity: 0.85;
    margin-bottom: 16px;
}
.hero__date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    background: rgba(255,255,255,0.15);
    border-radius: 100px;
    font-size: 0.85rem;
    opacity: 0.9;
}
@media (min-width: 768px) {
    .hero { padding: 48px 0 36px; }
    .hero__title { font-size: 2.25rem; }
    .hero__subtitle { font-size: 1.15rem; }
}

/* ============================================
   SECTIONS
   ============================================ */
.section { padding: 40px 0; }
.section--alt { background: var(--color-bg-alt); }
.section__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}
.section__subtitle {
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}
@media (min-width: 768px) {
    .section { padding: 56px 0; }
    .section__title { font-size: 1.75rem; }
}

/* ============================================
   PRICE CARDS
   ============================================ */
.price-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 480px) {
    .price-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
    .price-grid { grid-template-columns: repeat(4, 1fr); }
}

.price-card {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    text-decoration: none;
    display: block;
}
.price-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.price-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.price-card__lonja {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
}
.price-card__badge {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 3px 8px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}
.price-card__badge--up {
    background: rgba(46,125,50,0.1);
    color: var(--color-up);
}
.price-card__badge--down {
    background: rgba(198,40,40,0.1);
    color: var(--color-down);
}
.price-card__badge--neutral {
    background: rgba(117,117,117,0.1);
    color: var(--color-neutral);
}
.price-card__price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 4px;
}
.price-card__unit {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
.price-card__variety {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid var(--color-border);
}
.price-card__mini-chart {
    margin-top: 12px;
    height: 40px;
}
.price-card__mini-chart canvas { width: 100% !important; height: 40px !important; }

/* ============================================
   CHARTS
   ============================================ */
.chart-container {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}
.chart-controls {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}
.chip {
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 500;
    background: var(--color-bg);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}
.chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.chip--active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}
.chart-wrapper { position: relative; height: 300px; }
@media (min-width: 768px) { .chart-wrapper { height: 400px; } }

/* ============================================
   DATA TABLE
   ============================================ */
.table-responsive { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.data-table {
    background: var(--color-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}
.data-table th {
    background: var(--color-bg);
    padding: 12px 16px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-text-secondary);
    text-align: left;
    white-space: nowrap;
}
.data-table td {
    padding: 12px 16px;
    font-size: 0.9rem;
    border-top: 1px solid var(--color-border);
    white-space: nowrap;
}
.data-table tbody tr:hover { background: rgba(27,94,32,0.03); }
.td-price { font-weight: 600; }
.td-up { color: var(--color-up); }
.td-down { color: var(--color-down); }
.td-variety { font-weight: 600; }

/* ============================================
   CALCULATOR
   ============================================ */
.calc-quick {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}
@media (min-width: 768px) {
    .calc-quick { grid-template-columns: 1fr auto; align-items: center; }
}
.calc-quick__inputs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
@media (min-width: 768px) {
    .calc-quick__inputs { grid-template-columns: repeat(4, 1fr); }
}
.form-group label {
    display: block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 6px;
}
.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-bg);
    transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(27,94,32,0.1);
}
.calc-quick__result {
    text-align: center;
    padding: 24px 32px;
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
    border-radius: var(--radius-md);
    color: #fff;
    min-width: 200px;
}
.calc-result__label {
    font-size: 0.8rem;
    opacity: 0.8;
    margin-bottom: 4px;
}
.calc-result__value {
    font-size: 2rem;
    font-weight: 700;
}
.calc-result__detail {
    font-size: 0.8rem;
    opacity: 0.7;
    margin-top: 4px;
}

/* ============================================
   TREND CARDS
   ============================================ */
.trend-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}
@media (min-width: 768px) {
    .trend-cards { grid-template-columns: repeat(3, 1fr); }
}
.trend-card {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}
.trend-card__icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    font-size: 1.2rem;
}
.trend-card__icon--up { background: rgba(46,125,50,0.1); color: var(--color-up); }
.trend-card__icon--down { background: rgba(198,40,40,0.1); color: var(--color-down); }
.trend-card__icon--info { background: rgba(27,94,32,0.1); color: var(--color-primary); }
.trend-card__title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 6px;
}
.trend-card__text {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ============================================
   CTA / ALERTS
   ============================================ */
.section--cta {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: #fff;
}
.cta-box { text-align: center; max-width: 600px; margin: 0 auto; }
.cta-box__title { font-size: 1.5rem; font-weight: 700; margin-bottom: 8px; }
.cta-box__text { opacity: 0.85; margin-bottom: 20px; }
.cta-box__form {
    display: flex;
    gap: 8px;
    max-width: 420px;
    margin: 0 auto;
}
.input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: var(--radius-sm);
    background: rgba(255,255,255,0.1);
    color: #fff;
    font-size: 0.95rem;
}
.input::placeholder { color: rgba(255,255,255,0.6); }
.input:focus { outline: none; border-color: rgba(255,255,255,0.7); background: rgba(255,255,255,0.15); }
.btn {
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition);
    white-space: nowrap;
}
.btn--primary {
    background: #fff;
    color: var(--color-primary-dark);
}
.btn--primary:hover { background: var(--color-accent-light); }

/* ============================================
   FAQ
   ============================================ */
.faq-list { max-width: 800px; }
.faq-item {
    border-bottom: 1px solid var(--color-border);
}
.faq-item__question {
    padding: 16px 0;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.faq-item__question::after {
    content: '+';
    font-size: 1.3rem;
    color: var(--color-text-muted);
    transition: transform var(--transition);
}
.faq-item[open] .faq-item__question::after {
    content: '-';
}
.faq-item__question::-webkit-details-marker { display: none; }
.faq-item__answer {
    padding: 0 0 16px;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--color-card);
    border-top: 1px solid var(--color-border);
    padding-top: 40px;
}
.footer__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 32px;
}
@media (min-width: 768px) {
    .footer__inner { grid-template-columns: 2fr 1fr 1fr; }
}
.footer__desc {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    margin-top: 12px;
    max-width: 320px;
}
.footer__links h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin-bottom: 12px;
}
.footer__links a {
    display: block;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    padding: 4px 0;
    transition: color var(--transition);
}
.footer__links a:hover { color: var(--color-primary); }
.footer__bottom {
    padding: 20px 0;
    border-top: 1px solid var(--color-border);
}
.footer__bottom p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ============================================
   LONJA PAGE SPECIFICS
   ============================================ */
.lonja-hero {
    padding: 32px 0 24px;
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: #fff;
}
@media (min-width: 768px) { .lonja-hero { padding: 48px 0 36px; } }
.lonja-hero__name {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 4px;
}
@media (min-width: 768px) { .lonja-hero__name { font-size: 2.25rem; } }
.lonja-hero__region {
    opacity: 0.85;
    margin-bottom: 16px;
}
.lonja-hero__stats {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}
.lonja-stat {
    text-align: center;
    padding: 12px 20px;
    background: rgba(255,255,255,0.12);
    border-radius: var(--radius-sm);
}
.lonja-stat__value {
    font-size: 1.5rem;
    font-weight: 700;
}
.lonja-stat__label {
    font-size: 0.75rem;
    opacity: 0.8;
}
.breadcrumb {
    padding: 12px 0;
    font-size: 0.85rem;
    color: var(--color-text-muted);
}
.breadcrumb a { color: var(--color-primary); }
.breadcrumb span { margin: 0 6px; }

/* History table */
.history-table td:first-child { font-weight: 500; }

/* ============================================
   CALCULATOR PAGE
   ============================================ */
.calc-full {
    background: var(--color-card);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
}
.calc-full__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}
@media (min-width: 768px) {
    .calc-full__grid { grid-template-columns: repeat(2, 1fr); }
}
.calc-full__results {
    margin-top: 24px;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}
@media (min-width: 768px) {
    .calc-full__results { grid-template-columns: repeat(4, 1fr); }
}
.result-card {
    padding: 16px;
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    text-align: center;
}
.result-card__value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}
.result-card__label {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
    margin-top: 4px;
}

/* ============================================
   UTILITIES
   ============================================ */
.text-up { color: var(--color-up); }
.text-down { color: var(--color-down); }
.text-center { text-align: center; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-16 { margin-bottom: 16px; }
.visually-hidden {
    position: absolute; width: 1px; height: 1px;
    padding: 0; margin: -1px; overflow: hidden;
    clip: rect(0,0,0,0); border: 0;
}