/* ============================================
   SISTEMA DE INVENTARIO - DISEÑO MODERNO
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

:root {
    --primary: #FF6B35;
    --primary-dark: #E85A2A;
    --primary-light: #FFA07A;
    --secondary: #004E89;
    --accent: #FFD23F;
    --success: #2DD881;
    --danger: #FF3E5F;
    --warning: #FFBA08;
    --dark: #0A0E27;
    --gray: #8B95A5;
    --light: #F7F9FC;
    --border: #E4E9F2;
    --white: #FFFFFF;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.16);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--light);
    color: var(--dark);
    line-height: 1.6;
    font-weight: 500;
}

/* ============================================
   CONTENEDOR PRINCIPAL
   ============================================ */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   HEADER / NAVEGACIÓN
   ============================================ */

.header {
    background: var(--dark);
    color: var(--white);
    padding: 0;
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 4px solid var(--primary);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 14px;
    font-size: 1.4rem;
    font-weight: 900;
    text-decoration: none;
    color: var(--white);
    text-transform: uppercase;
    letter-spacing: -0.5px;
    z-index: 101;
}

.logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 12px var(--primary));
}

/* Hamburger Menu Button */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 101;
}

.menu-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background: var(--white);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.nav-main {
    display: flex;
    gap: 0.25rem;
    align-items: center;
}

.nav-main a {
    color: var(--white);
    text-decoration: none;
    padding: 0.75rem 1.25rem;
    border-radius: 10px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 700;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    white-space: nowrap;
}

.nav-main a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--primary);
    transition: width 0.3s ease;
}

.nav-main a:hover::before {
    width: 80%;
}

.nav-main a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

.nav-main a.active {
    background: var(--primary);
    color: var(--white);
}

.nav-main a.active::before {
    display: none;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--white);
}

.user-info {
    text-align: right;
}

.user-name {
    font-weight: 800;
    font-size: 0.95rem;
}

.user-role {
    font-size: 0.75rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* ============================================
   PÁGINA DE LOGIN
   ============================================ */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--dark) 0%, var(--secondary) 100%);
    padding: 20px;
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 60%;
    height: 150%;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
    opacity: 0.15;
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.15; }
    50% { transform: scale(1.1); opacity: 0.25; }
}

.login-box {
    background: var(--white);
    padding: 3.5rem;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 460px;
    position: relative;
    z-index: 1;
}

.login-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.login-icon {
    font-size: 4.5rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 4px 12px rgba(255, 107, 53, 0.3));
}

.login-title {
    font-size: 2rem;
    font-weight: 900;
    color: var(--dark);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.login-subtitle {
    color: var(--gray);
    font-size: 1rem;
    font-weight: 600;
}

/* ============================================
   FORMULARIOS
   ============================================ */

.form-group {
    margin-bottom: 1.75rem;
}

.form-label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 700;
    color: var(--dark);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--white);
    font-weight: 500;
    font-family: 'Inter', sans-serif;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(255, 107, 53, 0.1);
    transform: translateY(-2px);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-help {
    font-size: 0.85rem;
    color: var(--gray);
    margin-top: 0.5rem;
    font-weight: 500;
}

/* ============================================
   BOTONES
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 1rem 1.75rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    justify-content: center;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.btn:active {
    transform: translateY(-1px);
}

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

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

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

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

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

.btn-warning {
    background: var(--warning);
    color: var(--dark);
}

.btn-outline {
    background: transparent;
    border: 3px solid var(--primary);
    color: var(--primary);
}

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

.btn-sm {
    padding: 0.65rem 1.25rem;
    font-size: 0.9rem;
}

.btn-lg {
    padding: 1.25rem 2.25rem;
    font-size: 1.1rem;
}

.btn-block {
    width: 100%;
    display: flex;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   ALERTAS
   ============================================ */

.alert {
    padding: 1.25rem 1.75rem;
    border-radius: 12px;
    margin-bottom: 1.75rem;
    border-left: 5px solid;
    display: flex;
    align-items: center;
    gap: 14px;
    font-weight: 600;
    box-shadow: var(--shadow);
}

.alert-success {
    background: #D1FAE5;
    border-color: var(--success);
    color: #065F46;
}

.alert-error {
    background: #FFE4E6;
    border-color: var(--danger);
    color: #991B1B;
}

.alert-warning {
    background: #FFF9E6;
    border-color: var(--warning);
    color: #854D0E;
}

.alert-info {
    background: #E0F2FE;
    border-color: var(--secondary);
    color: #075985;
}

/* ============================================
   CARDS
   ============================================ */

.card {
    background: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: 2px solid var(--border);
    overflow: hidden;
    margin-bottom: 2rem;
    transition: all 0.3s ease;
}

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

.card-header {
    padding: 1.5rem 2rem;
    background: var(--light);
    border-bottom: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.card-title {
    font-size: 1.4rem;
    font-weight: 900;
    color: var(--dark);
    text-transform: uppercase;
    letter-spacing: -0.3px;
}

.card-body {
    padding: 2rem;
}

.card-footer {
    padding: 1.25rem 2rem;
    background: var(--light);
    border-top: 2px solid var(--border);
}

/* ============================================
   TABLAS
   ============================================ */

.table-container {
    overflow-x: auto;
    border-radius: 12px;
}

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

.table thead {
    background: var(--dark);
    color: var(--white);
}

.table th {
    padding: 1.25rem;
    text-align: left;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.table td {
    padding: 1.25rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
}

.table tbody tr:hover {
    background: var(--light);
}

.table-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ============================================
   GRID DE FIGURAS
   ============================================ */

.figures-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.figure-card {
    background: var(--white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 2px solid var(--border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.figure-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.figure-image {
    width: 100%;
    height: 280px;
    object-fit: cover;
    background: var(--light);
}

.figure-content {
    padding: 1.5rem;
}

.figure-code {
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 800;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.figure-name {
    font-size: 1.2rem;
    font-weight: 900;
    color: var(--dark);
    margin-bottom: 0.5rem;
}

.figure-brand {
    font-size: 0.95rem;
    color: var(--gray);
    margin-bottom: 1rem;
    font-weight: 600;
}

.figure-price {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--success);
    margin-bottom: 1.25rem;
}

.figure-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

/* ============================================
   STATS / DASHBOARD
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    filter: drop-shadow(0 2px 8px rgba(0,0,0,0.2));
}

.stat-value {
    font-size: 3rem;
    font-weight: 900;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   MODAL
   ============================================ */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 39, 0.8);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--white);
    border-radius: 20px;
    padding: 2.5rem;
    max-width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray);
    transition: all 0.3s ease;
}

.modal-close:hover {
    color: var(--danger);
    transform: rotate(90deg);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 968px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-main {
        position: fixed;
        top: 0;
        left: -100%;
        width: 280px;
        height: 100vh;
        background: var(--dark);
        flex-direction: column;
        padding: 5rem 1.5rem 2rem;
        gap: 0.5rem;
        transition: left 0.3s ease;
        overflow-y: auto;
        border-right: 4px solid var(--primary);
        box-shadow: var(--shadow-lg);
        z-index: 99;
    }
    
    .nav-main.active {
        left: 0;
    }
    
    .nav-main a {
        width: 100%;
        padding: 1rem 1.5rem;
        justify-content: flex-start;
    }
    
    .nav-main a::before {
        display: none;
    }
    
    .user-menu {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .user-info {
        text-align: center;
    }
}

@media (max-width: 768px) {
    .figures-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .table-actions {
        flex-direction: column;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .login-box {
        padding: 2rem;
    }
}

/* ============================================
   UTILIDADES
   ============================================ */

.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 2rem; }
.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 2rem; }
.d-flex { display: flex; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }

/* ============================================
   AUTOCOMPLETE
   ============================================ */

.autocomplete-container {
    position: relative;
}

.autocomplete-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    border: 2px solid var(--primary);
    border-top: none;
    border-radius: 0 0 8px 8px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    display: none;
}

.autocomplete-suggestions.active {
    display: block;
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: all 0.2s ease;
    border-bottom: 1px solid var(--border);
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover,
.autocomplete-item.selected {
    background: var(--primary);
    color: var(--white);
}

.autocomplete-item mark {
    background: var(--accent);
    color: var(--dark);
    font-weight: 700;
    padding: 0 2px;
}