/* ==========================================================================
   Cyber-Growth & Masterpiece Aesthetic — Artes do Sul 2026
   ========================================================================== */
@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');

:root {
    /* ==========================================================================
       Design System Tokens - Abstração de Cores
       ========================================================================== */
    --color-primary: var(--theme-primary, #F59E0B);
    --color-primary-bright: var(--theme-primary-bright, color-mix(in srgb, var(--color-primary) 80%, white));
    --color-primary-dark: var(--theme-primary-dark, color-mix(in srgb, var(--color-primary) 65%, black));
    --color-accent: var(--theme-accent, #10B981);
    --color-accent-alt: var(--theme-accent-alt, #06B6D4);

    --color-background: var(--theme-background, #030712);
    --color-surface: var(--theme-surface, #0B1120);
    --color-text: var(--theme-text, #E2E8F0);
    --color-text-secondary: var(--theme-text-secondary, #CBD5E1);
    --color-text-muted: var(--theme-text-muted, #94A3B8);

    --glass-bg: var(--theme-glass-bg, color-mix(in srgb, var(--color-text) 6%, transparent));
    --glass-bg-strong: var(--theme-glass-bg-strong, color-mix(in srgb, var(--color-text) 11%, transparent));
    --glass-card-bg: var(--theme-glass-card-bg, rgba(15, 23, 42, 0.65));
    --glass-border-color: var(--theme-glass-border-color, rgba(255, 255, 255, 0.08));
    --glass-border-hover-color: var(--theme-glass-border-hover-color, rgba(245, 158, 11, 0.35));
    --spotlight-color: var(--theme-spotlight-color, rgba(245, 158, 11, 0.12));

    /* Tipografia — controlada por tema (design-system.json) */
    --font-heading: var(--theme-font-heading, 'Outfit', sans-serif);
    --font-body: var(--theme-font-body, 'Inter', sans-serif);
    --font-mono: 'JetBrains Mono', ui-monospace, monospace;
}

/* ==========================================================================
   Definições de Tema
   ========================================================================== */
/* Tema Padrão: Masterpiece (Ouro e Obsidiana) */
[data-theme="masterpiece"], :root {
    --theme-primary: #F59E0B;
    --theme-primary-bright: #FBBF24;
    --theme-primary-dark: #B45309;
    --theme-background: #030712;
    --theme-bg-gradient: radial-gradient(ellipse at top, #1e293b 0%, #030712 60%, #000000 100%);
    --theme-surface: #0B1120;
    --theme-glass-card-bg: rgba(15, 23, 42, 0.65);
    --theme-text: #E2E8F0;
    --theme-text-secondary: #CBD5E1;
    --theme-text-muted: #94A3B8;
    --theme-glass-border-color: rgba(255, 255, 255, 0.08);
    --theme-glass-border-hover-color: rgba(245, 158, 11, 0.35);
    --theme-spotlight-color: rgba(245, 158, 11, 0.12);
    --theme-font-heading: 'Outfit', sans-serif;
    --theme-font-body: 'Inter', sans-serif;
}

html {
    scroll-behavior: smooth;
    background-color: var(--color-background);
    transition: background-color 0.4s ease;
}

body {
    font-family: var(--font-body);
    background-color: var(--color-background);
    color: var(--color-text);
    transition: background-color 0.4s ease, color 0.4s ease;
}

h1, h2, h3, h4, h5, h6, .font-heading {
    font-family: var(--font-heading);
}

.font-mono {
    font-family: var(--font-mono);
}

::selection {
    background-color: var(--color-primary);
    color: var(--color-background);
}

/* Utilitários de Cor */
.text-gold { color: var(--color-primary); }
.text-gold-bright { color: var(--color-primary-bright); }
.bg-gold { background-color: var(--color-primary); }
.border-gold { border-color: var(--color-primary); }
.from-gold {
    --tw-gradient-from: var(--color-primary);
    --tw-gradient-stops: var(--tw-gradient-from), var(--tw-gradient-to, transparent);
}
.to-gold-dark { --tw-gradient-to: var(--color-primary-dark); }
.to-gold-bright { --tw-gradient-to: var(--color-primary-bright); }
.bg-obsidian { background-color: var(--color-background); }
.bg-obsidian-surface { background-color: var(--color-surface); }
.bg-hero-gradient { background: var(--theme-bg-gradient); }

/* ==========================================================================
   Ponte de Tema — normaliza utilitários de opacidade do Tailwind (o build
   via CDN não gera variantes "/n"; aqui elas passam a responder às
   variáveis de tema, permitindo trocar de tema sem editar o HTML)
   ========================================================================== */
.text-white, .text-slate-100, .text-slate-200 { color: var(--color-text); }
.text-slate-300 { color: var(--color-text-secondary); }
.text-slate-400, .text-slate-500 { color: var(--color-text-muted); }

.bg-white\/5 { background-color: var(--glass-bg); }
.bg-white\/10, .hover\:bg-white\/10:hover { background-color: var(--glass-bg-strong); }
.border-white\/5, .border-white\/8, .border-white\/10, .border-white\/15 { border-color: var(--glass-border-color); }

.bg-obsidian\/70 { background-color: color-mix(in srgb, var(--color-background) 70%, transparent); }
.bg-obsidian\/80 { background-color: color-mix(in srgb, var(--color-background) 80%, transparent); }
.bg-obsidian\/85 { background-color: color-mix(in srgb, var(--color-background) 85%, transparent); }
.bg-obsidian\/90 { background-color: color-mix(in srgb, var(--color-background) 90%, transparent); }
.bg-obsidian-surface\/30 { background-color: color-mix(in srgb, var(--color-surface) 30%, transparent); }
.bg-obsidian-surface\/40 { background-color: color-mix(in srgb, var(--color-surface) 40%, transparent); }

.bg-black\/50 { background-color: rgba(0, 0, 0, 0.5); }
.bg-black\/80 { background-color: rgba(0, 0, 0, 0.8); }

.bg-gold\/10 { background-color: color-mix(in srgb, var(--color-primary) 10%, transparent); }
.bg-gold\/20 { background-color: color-mix(in srgb, var(--color-primary) 20%, transparent); }
.border-gold\/20 { border-color: color-mix(in srgb, var(--color-primary) 20%, transparent); }
.border-gold\/30 { border-color: color-mix(in srgb, var(--color-primary) 30%, transparent); }
.hover\:border-gold\/30:hover { border-color: color-mix(in srgb, var(--color-primary) 30%, transparent); }
.border-gold\/50, .hover\:border-gold\/50:hover { border-color: color-mix(in srgb, var(--color-primary) 50%, transparent); }

.bg-amber-500\/10 { background-color: rgba(245, 158, 11, 0.10); }
.bg-emerald-500\/10 { background-color: rgba(16, 185, 129, 0.10); }
.bg-emerald-500\/20 { background-color: rgba(16, 185, 129, 0.20); }
.border-emerald-500\/20 { border-color: rgba(16, 185, 129, 0.20); }
.border-emerald-500\/30 { border-color: rgba(16, 185, 129, 0.30); }
.hover\:border-emerald-500\/50:hover { border-color: rgba(16, 185, 129, 0.50); }
.bg-cyan-500\/10 { background-color: rgba(6, 182, 212, 0.10); }
.bg-cyan-500\/20 { background-color: rgba(6, 182, 212, 0.20); }
.border-cyan-500\/20 { border-color: rgba(6, 182, 212, 0.20); }
.bg-purple-500\/10 { background-color: rgba(168, 85, 247, 0.10); }
.bg-yellow-500\/80 { background-color: rgba(234, 179, 8, 0.80); }

/* Glassmorphism & Cards */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border-color);
}

.glass-card {
    background: var(--glass-card-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border-color);
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

#ads-counter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--color-text-secondary) !important;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    padding: 0.4rem 0.95rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 9999px;
    margin: 0.5rem auto 0;
    transition: all 0.25s ease;
    min-height: 28px;
}

#ads-counter:hover {
    border-color: rgba(245, 158, 11, 0.3);
    background: rgba(255, 255, 255, 0.06);
}

#ads-counter span {
    color: var(--color-text-secondary) !important;
    font-weight: 500;
}

.glass-card:hover {
    border-color: var(--glass-border-hover-color);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.7), 0 0 30px -10px rgba(245, 158, 11, 0.15);
}

.glass-dark {
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Card Spotlight Glow */
.spotlight-card {
    position: relative;
    overflow: hidden;
}

.spotlight-card::before {
    content: '';
    position: absolute;
    top: var(--mouse-y, -999px);
    left: var(--mouse-x, -999px);
    transform: translate(-50%, -50%);
    width: 380px;
    height: 380px;
    background: radial-gradient(circle, var(--spotlight-color) 0%, rgba(245, 158, 11, 0) 70%);
    pointer-events: none;
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

/* Custom Shadows & Glow */
.shadow-3xl {
    box-shadow: 0 35px 60px -15px rgba(0, 0, 0, 0.8);
}

.glow-gold {
    box-shadow: 0 0 30px rgba(245, 158, 11, 0.25);
}

.glow-emerald {
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.25);
}

/* Animações */
@keyframes pulse-slow {
    0%, 100% { opacity: 0.15; transform: scale(1); }
    50% { opacity: 0.35; transform: scale(1.08); }
}

.animate-pulse-slow {
    animation: pulse-slow 8s infinite ease-in-out;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

.animate-float {
    animation: float 4s ease-in-out infinite;
}

/* Filtros do Portfólio */
.filter-btn {
    padding: 0.5rem 1.25rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.25s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.03);
    color: var(--color-text-muted);
}

.filter-btn:hover {
    color: #FFFFFF;
    border-color: var(--glass-border-hover-color);
    background: var(--theme-glass-bg);
}

.filter-btn.active {
    background: var(--color-primary);
    color: var(--color-background);
    border-color: var(--color-primary);
    font-weight: 700;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
}

/* Floating WhatsApp Button */
.whatsapp-fab {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 999;
    width: 3.75rem;
    height: 3.75rem;
    border-radius: 9999px;
    background: #25D366;
    color: #FFFFFF;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.whatsapp-fab:hover {
    transform: scale(1.1) translateY(-2px);
    box-shadow: 0 15px 30px rgba(37, 211, 102, 0.6);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--color-background);
}
::-webkit-scrollbar-thumb {
    background: color-mix(in srgb, var(--color-text) 20%, transparent);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

#projects-grid div img {
    max-height: 235px;
    object-position: center;
    object-fit: cover;
}

/* ==========================================================================
   Seletor de Temas (design-system.json)
   ========================================================================== */
.theme-toggle-btn {
    position: relative;
    width: 2.75rem;
    height: 2.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.75rem;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border-color);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: var(--transition, all 0.25s ease);
}

.theme-toggle-btn:hover {
    color: var(--color-primary);
    border-color: var(--glass-border-hover-color);
}

.theme-panel {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 0.75rem);
    width: 19rem;
    max-height: 70vh;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border-color);
    border-radius: 1.25rem;
    padding: 0.6rem;
    box-shadow: 0 30px 60px -15px rgba(0, 0, 0, 0.85);
    z-index: 60;
}

.theme-panel.open {
    display: block;
    animation: theme-panel-in 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes theme-panel-in {
    from { opacity: 0; transform: translateY(-6px); }
    to { opacity: 1; transform: translateY(0); }
}

.theme-panel-label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: #64748B;
    padding: 0.5rem 0.65rem 0.35rem;
}

.theme-option {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.7rem;
    padding: 0.6rem 0.65rem;
    border-radius: 0.75rem;
    border: 1px solid transparent;
    background: transparent;
    color: #E2E8F0;
    text-align: left;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.theme-option:hover {
    background: rgba(255, 255, 255, 0.06);
}

.theme-option.active {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.12);
}

.theme-swatch {
    width: 1.75rem;
    height: 1.75rem;
    border-radius: 9999px;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 12px var(--swatch-glow, transparent);
}

.theme-option-text {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
}

.theme-option-name {
    font-size: 0.8rem;
    font-weight: 700;
    color: #F8FAFC;
}

.theme-option-desc {
    font-size: 0.68rem;
    color: #94A3B8;
    line-height: 1.3;
}

.theme-option-check {
    margin-left: auto;
    color: var(--color-primary);
    flex-shrink: 0;
    display: none;
}

.theme-option.active .theme-option-check {
    display: block;
}

.theme-swatches-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.theme-swatch-btn {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    cursor: pointer;
    transition: transform 0.2s ease, border-color 0.2s ease;
    flex-shrink: 0;
}

.theme-swatch-btn:hover {
    transform: scale(1.1);
}

.theme-swatch-btn.active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.4), 0 0 16px var(--swatch-glow, transparent);
}

/* ==========================================================================
   PWA Install Toast / Prompt Banner
   ========================================================================== */
.pwa-toast {
    position: fixed;
    bottom: 1.5rem;
    left: 1.5rem;
    z-index: 60;
    max-width: 380px;
    background: rgba(11, 17, 32, 0.88);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: 1rem;
    padding: 1rem 1.25rem;
    box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.8), 0 0 20px rgba(245, 158, 11, 0.15);
    transform: translateY(120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}

.pwa-toast.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

@media (max-width: 640px) {
    .pwa-toast {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
        max-width: none;
    }
}

/* ==========================================================================
   FAQ Accordion & Semantic Enhancements
   ========================================================================== */
.faq-item {
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.faq-item[open] {
    border-color: rgba(245, 158, 11, 0.35);
    background: rgba(15, 23, 42, 0.85);
}

.faq-item summary {
    cursor: pointer;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary .faq-icon {
    transition: transform 0.3s ease;
}

.faq-item[open] summary .faq-icon {
    transform: rotate(180deg);
    color: var(--color-primary);
}