/* CSS Variables */
:root {
    --color-bg: #0a0e17;
    --color-bg-card: #111827;
    --color-bg-card-alt: #1a2235;
    --color-border: #1e293b;
    --color-border-hover: #334155;
    
    --color-text-primary: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;
    
    --color-accent: #06b6d4;
    --color-accent-hover: #22d3ee;
    --color-accent-glow: rgba(6, 182, 212, 0.3);
    
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    --font-sans: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--color-accent-glow);
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
    --transition-slow: 400ms ease;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background Pattern */
.background-pattern {
    position: fixed;
    inset: 0;
    z-index: -1;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(6, 182, 212, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(139, 92, 246, 0.06) 0%, transparent 50%),
        linear-gradient(180deg, var(--color-bg) 0%, #0f172a 100%);
}

.background-pattern::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.6s ease-out;
}

.entidad-nombre {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    padding: 0.4rem 1rem;
    display: inline-block;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-md);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 0.75rem;
}

.logo svg {
    width: 48px;
    height: 48px;
    color: var(--color-accent);
    filter: drop-shadow(0 0 8px var(--color-accent-glow));
}

.logo h1 {
    font-size: 2.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
}

/* Search Section */
.search-section {
    margin-bottom: 2rem;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.search-form {
    max-width: 600px;
    margin: 0 auto;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.input-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-left: 0.25rem;
}

.input-wrapper {
    display: flex;
    gap: 0.75rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 0.5rem;
    transition: all var(--transition-normal);
}

.input-wrapper:focus-within {
    border-color: var(--color-accent);
    box-shadow: var(--shadow-glow);
}

.input-wrapper input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text-primary);
    padding: 0.75rem 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.input-wrapper input::placeholder {
    color: var(--color-text-muted);
    text-transform: none;
    letter-spacing: normal;
}

.input-wrapper button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--color-accent) 0%, #0891b2 100%);
    color: var(--color-bg);
    border: none;
    border-radius: var(--radius-md);
    padding: 0.75rem 1.5rem;
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.input-wrapper button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px var(--color-accent-glow);
}

.input-wrapper button:active {
    transform: translateY(0);
}

.input-wrapper button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.input-wrapper button svg {
    width: 20px;
    height: 20px;
}

/* Loading */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 3rem;
    animation: fadeIn 0.3s ease;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

.loading p {
    color: var(--color-text-secondary);
    font-size: 1rem;
}

/* Error Message */
.error-message {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: var(--radius-md);
    padding: 1.25rem 1.5rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: shake 0.5s ease;
}

.error-message svg {
    width: 24px;
    height: 24px;
    color: var(--color-error);
    flex-shrink: 0;
}

.error-message p {
    color: var(--color-error);
    font-size: 0.95rem;
}

/* Results */
.results {
    flex: 1;
    animation: fadeInUp 0.5s ease-out;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(480px, 1fr));
    gap: 1.5rem;
}

/* Cards */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--color-border-hover);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    background: var(--color-bg-card-alt);
    border-bottom: 1px solid var(--color-border);
}

.card-header h2 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.card-header h2 svg {
    width: 22px;
    height: 22px;
    color: var(--color-accent);
}

.placa-badge {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    background: linear-gradient(135deg, var(--color-accent) 0%, #0891b2 100%);
    color: var(--color-bg);
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-sm);
    letter-spacing: 0.05em;
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* Certificate Button */
.btn-certificado {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    padding: 0.5rem 1rem;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.btn-certificado svg {
    width: 18px;
    height: 18px;
}

.btn-certificado:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(16, 185, 129, 0.4);
}

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

.btn-certificado:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.status-badge {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.status-badge.aprobado {
    background: rgba(16, 185, 129, 0.15);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-badge.rechazado {
    background: rgba(239, 68, 68, 0.15);
    color: var(--color-error);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.status-badge.pendiente {
    background: rgba(245, 158, 11, 0.15);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-badge.default {
    background: rgba(100, 116, 139, 0.15);
    color: var(--color-text-secondary);
    border: 1px solid rgba(100, 116, 139, 0.3);
}

.card-body {
    padding: 1.5rem;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
}

.info-item {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.info-item.full-width {
    grid-column: 1 / -1;
}

.info-item .label {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.info-item .value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-primary);
}

.info-item .value.mono {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

/* Propietario Section */
.propietario-section {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.propietario-section h3,
.defectos-section h3,
.observaciones-section h3 {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
}

.propietario-section h3 svg,
.defectos-section h3 svg,
.observaciones-section h3 svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent);
}

.propietario-info {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1.25rem;
}

/* No Data */
.no-data {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 3rem;
    color: var(--color-text-muted);
}

.no-data svg {
    width: 48px;
    height: 48px;
    opacity: 0.5;
}

.no-data p {
    font-size: 0.95rem;
    text-align: center;
}

/* Defectos Section */
.defectos-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.defectos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.defecto-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: center;
}

.defecto-item .nivel {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.defecto-item .cantidad {
    font-family: var(--font-mono);
    font-size: 1.75rem;
    font-weight: 700;
}

.defecto-item.nivel-1 {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.2);
}
.defecto-item.nivel-1 .nivel { color: var(--color-success); }
.defecto-item.nivel-1 .cantidad { color: var(--color-success); }

.defecto-item.nivel-2 {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.2);
}
.defecto-item.nivel-2 .nivel { color: var(--color-warning); }
.defecto-item.nivel-2 .cantidad { color: var(--color-warning); }

.defecto-item.nivel-3 {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
}
.defecto-item.nivel-3 .nivel { color: var(--color-error); }
.defecto-item.nivel-3 .cantidad { color: var(--color-error); }

/* Observaciones Section */
.observaciones-section {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

.observaciones-section p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    background: var(--color-bg-card-alt);
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-accent);
}

/* Footer */
.footer {
    margin-top: auto;
    padding-top: 3rem;
    text-align: center;
}

.footer p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* Responsive */
@media (max-width: 1024px) {
    .results-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .container {
        padding: 1.25rem 1rem;
    }

    .logo {
        flex-direction: column;
        gap: 0.5rem;
    }

    .logo svg {
        width: 40px;
        height: 40px;
    }

    .logo h1 {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 0.95rem;
    }

    .input-wrapper {
        flex-direction: column;
        gap: 0.5rem;
        padding: 0.75rem;
    }

    .input-wrapper input {
        font-size: 1.1rem;
        text-align: center;
    }

    .input-wrapper button {
        justify-content: center;
        padding: 1rem;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .header-actions {
        width: 100%;
        justify-content: space-between;
    }

    .btn-certificado {
        flex: 1;
        justify-content: center;
    }

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

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

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

    .defecto-item {
        flex-direction: row;
        justify-content: space-between;
    }
}