/**
 * DESIGN SYSTEM - ROCXBOOK V2
 * Sistema de design premium estilo Netflix/Disney+
 */

:root {
    /* Cores Principais - Dark Premium */
    --color-bg-primary: #0A0A0A;
    --color-bg-secondary: #121212;
    --color-bg-tertiary: #1A1A1A;
    --color-bg-card: rgba(23, 23, 23, 0.95);
    --color-bg-overlay: rgba(0, 0, 0, 0.85);
    
    /* Cores de Destaque */
    --color-primary: #0FEB43;
    --color-primary-hover: #0DD639;
    --color-secondary: #C3E54D;
    --color-accent: #00D9FF;
    --color-accent-hover: #00B8D9;
    
    /* Cores de Texto */
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #B0B0B0;
    --color-text-tertiary: #8E8EA7;
    --color-text-disabled: #5A5A5A;
    
    /* Cores de Status */
    --color-success: #0FEB43;
    --color-success-bg: rgba(15, 235, 67, 0.1);
    --color-error: #FF4444;
    --color-error-bg: rgba(255, 68, 68, 0.1);
    --color-warning: #FFA500;
    --color-warning-bg: rgba(255, 165, 0, 0.1);
    --color-info: #00D9FF;
    --color-info-bg: rgba(0, 217, 255, 0.1);
    
    /* Bordas e Sombras */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    --border-radius-full: 9999px;
    
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-hover: rgba(15, 235, 67, 0.3);
    --border-color-active: rgba(15, 235, 67, 0.5);
    
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 20px rgba(15, 235, 67, 0.3);
    
    /* Espaçamentos */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    --spacing-3xl: 64px;
    
    /* Tipografia */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 14px;
    --font-size-base: 16px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;
    --font-size-5xl: 48px;
    --font-size-6xl: 64px;
    
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;
    
    --line-height-tight: 1.2;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Transições */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
    --transition-bounce: 400ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
}

/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    overflow-x: hidden;
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-extrabold);
    line-height: var(--line-height-tight);
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

/* Botões */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    line-height: 1;
    border: none;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-bg-primary);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--color-text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--border-color-hover);
}

.btn-ghost {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--border-color-hover);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

/* Cards */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    transition: all var(--transition-base);
    backdrop-filter: blur(20px);
}

.card:hover {
    border-color: var(--border-color-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card-interactive {
    cursor: pointer;
}

/* Inputs */
.input-group {
    margin-bottom: var(--spacing-lg);
}

.input-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-primary);
}

.input {
    width: 100%;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: all var(--transition-base);
    -webkit-appearance: none;
    appearance: none;
}

.input:focus {
    outline: none;
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(15, 235, 67, 0.1);
}

.input::placeholder {
    color: var(--color-text-tertiary);
}

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

/* Alerts */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius-md);
    border: 1px solid;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.alert-success {
    background: var(--color-success-bg);
    border-color: var(--color-success);
    color: var(--color-success);
}

.alert-error {
    background: var(--color-error-bg);
    border-color: var(--color-error);
    color: var(--color-error);
}

.alert-warning {
    background: var(--color-warning-bg);
    border-color: var(--color-warning);
    color: var(--color-warning);
}

.alert-info {
    background: var(--color-info-bg);
    border-color: var(--color-info);
    color: var(--color-info);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--border-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.badge-error {
    background: var(--color-error-bg);
    color: var(--color-error);
}

.badge-warning {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.badge-info {
    background: var(--color-info-bg);
    color: var(--color-info);
}

.badge-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-bg-primary);
}

/* Modais */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-overlay);
    backdrop-filter: blur(8px);
    z-index: var(--z-modal-backdrop);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    opacity: 0;
    animation: fadeIn var(--transition-base) forwards;
}

.modal {
    background: var(--color-bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-2xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    animation: modalSlideIn var(--transition-slow) forwards;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

@keyframes modalSlideIn {
    to {
        transform: scale(1);
    }
}

/* Skeleton Loading */
.skeleton {
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.05) 0%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0.05) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--border-radius-md);
}

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

/* Animações de Entrada */
@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 slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp var(--transition-slow) ease-out;
}

.animate-fade-in-down {
    animation: fadeInDown var(--transition-slow) ease-out;
}

.animate-slide-in-right {
    animation: slideInRight var(--transition-slow) ease-out;
}

/* Glassmorphism Leve */
.glass {
    background: rgba(23, 23, 23, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Gradientes Premium */
.gradient-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.gradient-bg-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
}

.gradient-bg-accent {
    background: linear-gradient(135deg, var(--color-accent), var(--color-primary));
}

/* Responsividade Mobile-First */
@media (max-width: 768px) {
    :root {
        --font-size-5xl: 36px;
        --font-size-4xl: 28px;
        --font-size-3xl: 24px;
        --spacing-3xl: 48px;
        --spacing-2xl: 32px;
    }
    
    .btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: var(--font-size-sm);
    }
    
    .card {
        padding: var(--spacing-lg);
    }
    
    .modal {
        padding: var(--spacing-xl);
        border-radius: var(--border-radius-lg);
    }
}

/* Prefers Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Scrollbar Customizada */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}