/* =============================================
   PLATFORM SHOWROOM - DESIGN SYSTEM
   Professional UI/UX
   ============================================= */

/* ===== CSS VARIABLES ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --accent: #0ea5e9;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --dark: #0f172a;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
}

/* ===== GLOBAL ===== */
* { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
    line-height: 1.6;
}

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

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.animate-fade-in { animation: fadeIn 0.5s ease-out forwards; }
.animate-fade-in-up { animation: fadeInUp 0.6s ease-out forwards; }
.animate-fade-in-left { animation: fadeInLeft 0.6s ease-out forwards; }
.animate-fade-in-right { animation: fadeInRight 0.6s ease-out forwards; }
.animate-scale-in { animation: scaleIn 0.4s ease-out forwards; }
.animate-slide-down { animation: slideDown 0.3s ease-out forwards; }
.animate-float { animation: float 3s ease-in-out infinite; }
.animate-pulse-slow { animation: pulse 3s cubic-bezier(0.4, 0, 0.6, 1) infinite; }

/* Stagger animations */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }

/* ===== GLASS EFFECTS ===== */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.glass-dark {
    background: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===== GRADIENTS ===== */
.gradient-primary {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 50%, #3b82f6 100%);
}

.gradient-hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 30%, #1e40af 60%, #2563eb 100%);
    background-size: 200% 200%;
    animation: gradientShift 8s ease infinite;
}

.gradient-mesh {
    background:
        radial-gradient(at 40% 20%, hsla(225, 100%, 40%, 0.3) 0px, transparent 50%),
        radial-gradient(at 80% 0%, hsla(189, 100%, 56%, 0.2) 0px, transparent 50%),
        radial-gradient(at 0% 50%, hsla(255, 100%, 50%, 0.15) 0px, transparent 50%),
        radial-gradient(at 80% 50%, hsla(340, 100%, 76%, 0.1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, hsla(22, 100%, 77%, 0.15) 0px, transparent 50%);
}

/* ===== BUTTONS ===== */
.btn-primary {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: white;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 99, 235, 0.5);
}

.btn-primary:hover::before {
    left: 100%;
}

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

.btn-whatsapp {
    background: linear-gradient(135deg, #25d366 0%, #128c7e 100%);
    color: white;
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 14px 0 rgba(37, 211, 102, 0.4);
}

.btn-whatsapp:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(37, 211, 102, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--gray-700);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 0.75rem;
    border: 2px solid var(--gray-200);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(37, 99, 235, 0.05);
}

/* ===== CARDS ===== */
.card {
    background: white;
    border-radius: 1rem;
    border: 1px solid var(--gray-100);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
    box-shadow: var(--shadow-xl);
    border-color: transparent;
    transform: translateY(-2px);
}

.card-premium {
    background: white;
    border-radius: 1.5rem;
    border: 1px solid var(--gray-100);
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.card-premium:hover {
    box-shadow: var(--shadow-2xl);
    transform: translateY(-4px);
    border-color: rgba(37, 99, 235, 0.2);
}

/* ===== VEHICLE CARD ===== */
.vehicle-card {
    background: white;
    border-radius: 1.25rem;
    overflow: hidden;
    border: 1px solid var(--gray-100);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.vehicle-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 1.25rem;
    padding: 1px;
    background: linear-gradient(135deg, transparent, rgba(37, 99, 235, 0.3), transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}

.vehicle-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.15);
}

.vehicle-card:hover::after {
    opacity: 1;
}

.vehicle-card .card-image {
    overflow: hidden;
    position: relative;
}

.vehicle-card .card-image img {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.vehicle-card:hover .card-image img {
    transform: scale(1.08);
}

.vehicle-card .card-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    z-index: 10;
}

.vehicle-card .card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 50%);
    opacity: 0;
    transition: opacity 0.4s;
}

.vehicle-card:hover .card-overlay {
    opacity: 1;
}

/* ===== STAT CARDS ===== */
.stat-card {
    background: white;
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid var(--gray-100);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s;
}

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

.stat-card:hover::before {
    opacity: 1;
}

/* ===== HERO SECTION ===== */
.hero-section {
    position: relative;
    overflow: hidden;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.hero-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(14, 165, 233, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -30%;
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(59, 130, 246, 0.15) 0%, transparent 70%);
    z-index: 0;
    animation: float 6s ease-in-out infinite;
}

/* ===== FLOATING SHAPES ===== */
.shape-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    z-index: 0;
}

/* ===== INPUT FIELDS ===== */
.input-premium {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 2.75rem;
    border: 2px solid var(--gray-200);
    border-radius: 0.75rem;
    font-size: 0.875rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: white;
}

.input-premium:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
}

.input-premium::placeholder {
    color: var(--gray-400);
}

/* ===== NAVBAR ===== */
.nav-premium {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s;
}

.nav-premium.scrolled {
    box-shadow: var(--shadow-md);
}

/* ===== BADGES ===== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.025em;
}

.badge-success {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: #065f46;
}

.badge-warning {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: #92400e;
}

.badge-danger {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #991b1b;
}

.badge-info {
    background: linear-gradient(135deg, #dbeafe, #bfdbfe);
    color: #1e40af;
}

.badge-purple {
    background: linear-gradient(135deg, #ede9fe, #ddd6fe);
    color: #5b21b6;
}

/* ===== TABLE ===== */
.table-premium {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.table-premium thead th {
    background: var(--gray-50);
    padding: 0.875rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray-500);
    border-bottom: 1px solid var(--gray-200);
    text-align: left;
}

.table-premium tbody td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--gray-100);
    font-size: 0.875rem;
    color: var(--gray-700);
    transition: background 0.2s;
}

.table-premium tbody tr:hover td {
    background: var(--gray-50);
}

.table-premium tbody tr:last-child td {
    border-bottom: none;
}

/* ===== SIDEBAR ===== */
.sidebar-premium {
    background: white;
    border-right: 1px solid var(--gray-100);
    transition: all 0.3s;
}

.sidebar-premium .nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    border-radius: 0.75rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-600);
    transition: all 0.2s;
    position: relative;
}

.sidebar-premium .nav-item:hover {
    background: var(--gray-50);
    color: var(--gray-900);
}

.sidebar-premium .nav-item.active {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(59, 130, 246, 0.05));
    color: var(--primary);
    font-weight: 600;
}

.sidebar-premium .nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60%;
    background: var(--primary);
    border-radius: 0 4px 4px 0;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .hero-section {
        min-height: 60vh;
    }
}

/* ===== LOADING SKELETON ===== */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 0.5rem;
}

/* ===== TOOLTIP ===== */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.5rem 0.75rem;
    background: var(--gray-900);
    color: white;
    font-size: 0.75rem;
    border-radius: 0.5rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s;
}

[data-tooltip]:hover::after {
    opacity: 1;
    bottom: calc(100% + 4px);
}