/* ─── Variables ──────────────────────────────────────── */
:root {
    --bg:        #f5f3ee;
    --surface:   #ffffff;
    --border:    #e2ddd6;
    --text:      #1a1a18;
    --text-muted:#7a7670;
    --accent:    #2d6a4f;
    --accent-lt: #d8f3dc;
    --danger:    #c0392b;
    --warn-bg:   #fff3cd;
    --radius:    12px;
    --shadow:    0 2px 12px rgba(0,0,0,.08);
    --font-head: 'Syne', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --nav-h:     60px;
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-size: 15px;
    line-height: 1.6;
    min-height: 100vh;
}

/* ─── Navbar ─────────────────────────────────────────── */
.navbar {
    position: sticky; top: 0; z-index: 100;
    height: var(--nav-h);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    box-shadow: var(--shadow);
}

.nav-brand {
    font-family: var(--font-head);
    font-weight: 800;
    font-size: 1.2rem;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: -.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    font-size: .9rem;
    padding: .25rem 0;
    border-bottom: 2px solid transparent;
    transition: color .2s, border-color .2s;
}
.nav-link:hover, .nav-link.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.nav-user {
    font-size: .85rem;
    color: var(--text-muted);
    background: var(--bg);
    padding: .2rem .7rem;
    border-radius: 99px;
}

.nav-logout {
    font-size: .85rem;
    color: var(--danger);
    text-decoration: none;
    font-weight: 500;
}
.nav-logout:hover { text-decoration: underline; }

/* ─── Main layout ────────────────────────────────────── */
.main-content {
    max-width: 1100px;
    margin: 0 auto;
    padding: 2rem 1.5rem 4rem;
}

/* ─── Flash messages ─────────────────────────────────── */
.flash-container { margin-bottom: 1.5rem; }
.flash {
    padding: .75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: .5rem;
    font-size: .9rem;
    font-weight: 500;
}
.flash-danger  { background: #fde8e8; color: var(--danger); border: 1px solid #f5c6c6; }
.flash-info    { background: #e8f4fd; color: #1a6ea8; border: 1px solid #b8d9f5; }
.flash-warning { background: var(--warn-bg); color: #856404; border: 1px solid #ffc107; }
.flash-success { background: var(--accent-lt); color: var(--accent); border: 1px solid #b7e4c7; }

/* ─── Page header ────────────────────────────────────── */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
}

.page-title {
    font-family: var(--font-head);
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -.5px;
    line-height: 1.1;
}

.page-subtitle {
    color: var(--text-muted);
    font-size: .9rem;
    margin-top: .25rem;
}

.page-actions {
    display: flex;
    align-items: center;
    gap: .8rem;
}

/* ─── Progress bar ───────────────────────────────────── */
.progress-bar-wrap {
    height: 6px;
    background: var(--border);
    border-radius: 99px;
    overflow: hidden;
    margin-bottom: 2.5rem;
}
.progress-bar {
    height: 100%;
    background: var(--accent);
    border-radius: 99px;
    transition: width .4s ease;
}

/* ─── SVG Progress ring ──────────────────────────────── */
.progress-ring-wrap {
    position: relative;
    width: 64px;
    height: 64px;
}
.progress-ring { transform: rotate(-90deg); }
.progress-ring__bg   { fill: none; stroke: var(--border); stroke-width: 4; }
.progress-ring__fill {
    fill: none;
    stroke: var(--accent);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: calc(2 * 3.14159 * 26);
    stroke-dashoffset: calc(2 * 3.14159 * 26 * (1 - var(--pct, 0) / 100));
    transition: stroke-dashoffset .5s ease;
}
.progress-label {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .75rem;
    font-weight: 600;
    color: var(--accent);
}

/* ─── Categoría section ──────────────────────────────── */
.categoria-section { margin-bottom: 2.5rem; }

.categoria-titulo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    padding-bottom: .5rem;
    margin-bottom: 1rem;
}

.categoria-count {
    font-size: .8rem;
    background: var(--accent-lt);
    color: var(--accent);
    padding: .1rem .5rem;
    border-radius: 99px;
    font-weight: 600;
}

/* ─── Productos grid ─────────────────────────────────── */
.productos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
}

.catalogo-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
}

/* ─── Producto card ──────────────────────────────────── */
.producto-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .2s, box-shadow .2s, opacity .3s;
    cursor: pointer;
}
.producto-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}
.producto-card.comprado {
    opacity: .45;
}

.producto-img-wrap {
    position: relative;
    aspect-ratio: 1;
    background: #f9f9f7;
    overflow: hidden;
}
.producto-img {
    width: 100%; height: 100%;
    object-fit: contain;
    padding: .5rem;
    transition: transform .3s;
}
.producto-card:hover .producto-img { transform: scale(1.04); }

.producto-check-overlay {
    position: absolute;
    inset: 0;
    background: rgba(45, 106, 79, .75);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity .25s;
}
.producto-card.comprado .producto-check-overlay { opacity: 1; }
.check-icon {
    font-size: 2.5rem;
    color: #fff;
    font-weight: 700;
}

.producto-info {
    padding: .6rem .75rem .75rem;
}

.producto-nombre {
    font-size: .8rem;
    line-height: 1.3;
    color: var(--text);
    margin-bottom: .5rem;
    min-height: 2.6em;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.producto-cat-badge {
    display: inline-block;
    font-size: .7rem;
    background: var(--accent-lt);
    color: var(--accent);
    padding: .1rem .45rem;
    border-radius: 99px;
    margin-bottom: .35rem;
    font-weight: 500;
}

/* ─── Botón toggle ───────────────────────────────────── */
.btn-toggle {
    width: 100%;
    padding: .35rem;
    border: 1px solid var(--accent);
    background: transparent;
    color: var(--accent);
    border-radius: 6px;
    font-size: .75rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, color .2s;
}
.btn-toggle:hover { background: var(--accent); color: #fff; }
.btn-toggle:disabled { opacity: .5; cursor: not-allowed; }
.producto-card.comprado .btn-toggle {
    border-color: var(--text-muted);
    color: var(--text-muted);
}

/* ─── Login ──────────────────────────────────────────── */
.login-wrap {
    min-height: calc(100vh - var(--nav-h));
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.login-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 2.5rem 2rem;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 8px 32px rgba(0,0,0,.1);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}
.login-icon { font-size: 2.5rem; display: block; margin-bottom: .5rem; }
.login-header h1 {
    font-family: var(--font-head);
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    letter-spacing: -.5px;
}
.login-header p { color: var(--text-muted); font-size: .9rem; margin-top: .25rem; }

/* ─── Formulario ─────────────────────────────────────── */
.field { margin-bottom: 1.25rem; }
.field label {
    display: block;
    font-size: .85rem;
    font-weight: 600;
    margin-bottom: .4rem;
    color: var(--text);
}
.field input {
    width: 100%;
    padding: .65rem .9rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: .95rem;
    background: var(--bg);
    color: var(--text);
    transition: border-color .2s;
    outline: none;
}
.field input:focus { border-color: var(--accent); background: var(--surface); }
.field-error { display: block; color: var(--danger); font-size: .78rem; margin-top: .3rem; }

.btn-primary {
    background: var(--accent);
    color: #fff;
    border: none;
    padding: .75rem 1.5rem;
    border-radius: 8px;
    font-family: var(--font-head);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s, transform .1s;
}
.btn-primary:hover  { background: #235e43; }
.btn-primary:active { transform: scale(.98); }
.btn-block { width: 100%; }

.btn-danger {
    background: var(--danger);
    color: #fff;
    border: none;
    padding: .55rem .9rem;
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: .82rem;
    font-weight: 700;
    cursor: pointer;
    transition: opacity .2s;
}
.btn-danger:hover { opacity: .9; }

.producto-card--catalogo.selected {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(45, 106, 79, .2);
}

/* ─── Search bar ─────────────────────────────────────── */
.search-bar-wrap {
    display: flex;
    gap: .75rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}
.search-input, .cat-select {
    padding: .65rem 1rem;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    font-family: var(--font-body);
    font-size: .95rem;
    background: var(--surface);
    color: var(--text);
    outline: none;
    transition: border-color .2s;
}
.search-input { flex: 1; min-width: 200px; }
.search-input:focus, .cat-select:focus { border-color: var(--accent); }
.cat-select { min-width: 200px; }

.search-hint {
    grid-column: 1 / -1;
    color: var(--text-muted);
    font-size: .9rem;
    padding: 1rem 0;
}

/* ─── Empty state ────────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* ─── Responsive ─────────────────────────────────────── */
@media (max-width: 600px) {
    .page-title { font-size: 1.5rem; }
    .productos-grid { grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); }
    .nav-links { gap: .8rem; }
    .nav-user { display: none; }
}