/* ============================================================
   JOYACERTIFICADA.COM - Estilos
   Elegante, moderno, minimalista
   Paleta: blanco/negro/dorado
   ============================================================ */

:root {
    --gold: #C9A961;
    --gold-light: #E8D5A0;
    --gold-dark: #9B7B3A;
    --black: #1A1A1A;
    --gray-900: #2A2A2A;
    --gray-700: #4A4A4A;
    --gray-500: #888888;
    --gray-300: #D0D0D0;
    --gray-100: #F5F5F5;
    --gray-50: #FAFAFA;
    --white: #FFFFFF;
    --green: #2E7D32;
    --red: #C62828;
    --blue: #1565C0;
    --amber: #F57F17;
    --shadow: 0 2px 12px rgba(0,0,0,0.06);
    --shadow-lg: 0 8px 30px rgba(0,0,0,0.10);
    --radius: 12px;
    --radius-sm: 6px;
    --font-serif: 'Cormorant Garamond', 'Playfair Display', Georgia, serif;
    --font-sans: 'Inter', 'Helvetica Neue', Arial, sans-serif;
    --transition: all 0.3s ease;
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    color: var(--gray-900);
    background: var(--white);
    line-height: 1.6;
    min-height: 100vh;
}

/* Tipografía */
h1, h2, h3, h4 {
    font-family: var(--font-serif);
    font-weight: 600;
    color: var(--black);
    letter-spacing: -0.02em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.875rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

a {
    color: var(--gold-dark);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--gold);
}

/* === LAYOUT === */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-narrow {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === HEADER === */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.95);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--black);
    letter-spacing: -0.01em;
}

.logo span {
    color: var(--gold);
}

.nav-links {
    display: flex;
    gap: 32px;
    align-items: center;
}

.nav-links a {
    color: var(--gray-700);
    font-size: 0.875rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.nav-links a:hover {
    color: var(--gold);
}

/* === CERTIFICADO PÚBLICO === */
.certificate-wrapper {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
    padding: 48px 0;
}

.certificate-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    max-width: 720px;
    margin: 0 auto;
}

.certificate-header {
    background: linear-gradient(135deg, var(--black) 0%, var(--gray-900) 100%);
    color: var(--white);
    padding: 40px;
    text-align: center;
}

.certificate-header .gold-line {
    width: 60px;
    height: 3px;
    background: var(--gold);
    margin: 16px auto;
    border-radius: 2px;
}

.certificate-header h1 {
    color: var(--white);
    font-size: 1.75rem;
}

.certificate-header .subtitle {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--gold-light);
    margin-top: 8px;
}

.certificate-body {
    padding: 40px;
}

.certificate-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 32px;
}

.certificate-status.registered,
.certificate-status.active {
    background: rgba(46, 125, 50, 0.08);
    color: var(--green);
}

.certificate-status.stolen {
    background: rgba(198, 40, 40, 0.08);
    color: var(--red);
}

.certificate-status.recovered {
    background: rgba(21, 101, 192, 0.08);
    color: var(--blue);
}

.certificate-status.transferred {
    background: rgba(245, 127, 23, 0.08);
    color: var(--amber);
}

.status-icon {
    font-size: 1.25rem;
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.detail-item {
    border-bottom: 1px solid var(--gray-100);
    padding-bottom: 16px;
}

.detail-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
    margin-bottom: 6px;
}

.detail-value {
    font-size: 1.125rem;
    color: var(--gray-900);
    font-weight: 500;
}

.detail-value.gold {
    color: var(--gold-dark);
}

.jeweler-info {
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    padding: 24px;
    margin-bottom: 24px;
}

.jeweler-info h3 {
    font-size: 1.125rem;
    margin-bottom: 8px;
}

.jeweler-info .jeweler-detail {
    font-size: 0.875rem;
    color: var(--gray-700);
}

/* Galería de fotos */
.photo-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 12px;
    margin-bottom: 32px;
}

.photo-gallery img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}

.photo-gallery img:hover {
    transform: scale(1.03);
    box-shadow: var(--shadow);
}

.certificate-footer {
    text-align: center;
    padding: 24px;
    border-top: 1px solid var(--gray-100);
    font-size: 0.75rem;
    color: var(--gray-500);
}

.certificate-footer .hash {
    font-family: monospace;
    font-size: 0.7rem;
    color: var(--gray-300);
    margin-top: 8px;
}

/* UID para joyero */
.uid-badge {
    background: rgba(201, 169, 97, 0.1);
    border: 1px solid var(--gold);
    border-radius: var(--radius-sm);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.uid-badge .uid-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gold-dark);
}

.uid-badge .uid-value {
    font-family: monospace;
    font-size: 1rem;
    color: var(--black);
    font-weight: 600;
}

/* === PIEZA NO ENCONTRADA === */
.notfound-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    padding: 24px;
}

.notfound-card {
    text-align: center;
    max-width: 480px;
}

.notfound-card .icon {
    font-size: 4rem;
    margin-bottom: 24px;
}

.notfound-card h1 {
    font-size: 1.75rem;
    margin-bottom: 12px;
}

.notfound-card p {
    color: var(--gray-700);
    margin-bottom: 24px;
}

/* === LOGIN === */
.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--black) 0%, var(--gray-900) 100%);
    padding: 24px;
}

.login-card {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-lg);
    padding: 48px;
    max-width: 400px;
    width: 100%;
}

.login-card .logo {
    text-align: center;
    margin-bottom: 32px;
    font-size: 1.75rem;
}

.login-card h2 {
    text-align: center;
    margin-bottom: 32px;
    font-size: 1.25rem;
    color: var(--gray-700);
    font-family: var(--font-sans);
    font-weight: 400;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: var(--font-sans);
    color: var(--gray-900);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(201, 169, 97, 0.1);
}

.form-group textarea {
    min-height: 100px;
    resize: vertical;
}

.form-error {
    color: var(--red);
    font-size: 0.875rem;
    margin-top: 8px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 32px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
}

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

.btn-primary:hover {
    background: var(--gray-900);
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-gold {
    background: linear-gradient(135deg, var(--gold) 0%, var(--gold-dark) 100%);
    color: var(--white);
}

.btn-gold:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    border-color: var(--gold);
    color: var(--gold-dark);
}

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 0.75rem;
}

/* === DASHBOARD === */
.dashboard-wrapper {
    min-height: 100vh;
    background: var(--gray-50);
}

.dashboard-header {
    background: var(--white);
    border-bottom: 1px solid var(--gray-100);
    padding: 16px 0;
}

.dashboard-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.dashboard-content {
    padding: 32px 0;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.stat-card .stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--black);
    font-family: var(--font-serif);
}

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

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

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

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

/* Tabla de piezas */
.pieces-table {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.pieces-table table {
    width: 100%;
    border-collapse: collapse;
}

.pieces-table th {
    background: var(--gray-50);
    padding: 16px;
    text-align: left;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--gray-500);
    font-weight: 600;
    border-bottom: 1px solid var(--gray-100);
}

.pieces-table td {
    padding: 16px;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.875rem;
    color: var(--gray-700);
}

.pieces-table tr:hover {
    background: var(--gray-50);
}

.pieces-table .piece-thumb {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

.status-badge.registered,
.status-badge.active {
    background: rgba(46, 125, 50, 0.1);
    color: var(--green);
}

.status-badge.stolen {
    background: rgba(198, 40, 40, 0.1);
    color: var(--red);
}

.status-badge.recovered {
    background: rgba(21, 101, 192, 0.1);
    color: var(--blue);
}

.status-badge.transferred {
    background: rgba(245, 127, 23, 0.1);
    color: var(--amber);
}

/* === DETALLE DE PIEZA === */
.piece-detail-wrapper {
    padding: 32px 0;
}

.piece-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.piece-title h2 {
    margin-bottom: 4px;
}

.piece-title .piece-code {
    font-family: monospace;
    color: var(--gold-dark);
    font-size: 1rem;
}

.piece-photos {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 32px;
}

.piece-photos .main-photo {
    grid-column: 1 / -1;
}

.piece-photos .main-photo img {
    width: 100%;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.piece-info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 24px;
}

/* === SUBIDA DE FOTOS === */
.upload-zone {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius);
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
}

.upload-zone:hover {
    border-color: var(--gold);
    background: rgba(201, 169, 97, 0.02);
}

.upload-zone .icon {
    font-size: 3rem;
    color: var(--gray-300);
    margin-bottom: 16px;
}

.upload-zone p {
    color: var(--gray-500);
    font-size: 0.875rem;
}

/* === PAGINACIÓN === */
.pagination {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 24px;
}

.pagination a {
    padding: 8px 16px;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--gray-700);
}

.pagination a:hover,
.pagination a.active {
    border-color: var(--gold);
    color: var(--gold-dark);
    background: rgba(201, 169, 97, 0.05);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.375rem; }

    .container {
        padding: 0 16px;
    }

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

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

    .pieces-table {
        overflow-x: auto;
    }

    .pieces-table table {
        min-width: 600px;
    }

    .piece-photos {
        grid-template-columns: 1fr;
    }

    .piece-info-grid {
        grid-template-columns: 1fr;
    }

    .certificate-body {
        padding: 24px;
    }

    .login-card {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        gap: 16px;
    }
}

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

.fade-in {
    animation: fadeIn 0.4s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-down {
    animation: slideDown 0.3s ease;
}

/* === UTILIDADES === */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 16px; }
.hidden { display: none; }

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.9);
    z-index: 9999;
    justify-content: center;
    align-items: center;
    cursor: pointer;
}

.lightbox.active {
    display: flex;
}

.lightbox img {
    max-width: 90%;
    max-height: 90%;
    border-radius: var(--radius);
}