/* =========================================================
   VARIÁVEIS DE TEMA (TEMA CLARO COMO PADRÃO)
========================================================= */

:root {
    --bg-main: #f8fafc;
    --bg-header: linear-gradient(135deg, #2563eb, #4f46e5, #7c3aed);
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --card-bg: #ffffff;
    --card-border: black;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05);
    --card-hover-border: #3b82f6;
    --code-bg: #f1f5f9;
    --code-text: #0f172a;
    --btn-primary: linear-gradient(135deg, #2563eb, #3b82f6);
    --btn-primary-hover: linear-gradient(135deg, #1d4ed8, #2563eb);
    --btn-success: linear-gradient(135deg, #10b981, #059669);
    --banner-bg: linear-gradient(135deg, #e0f2fe, #f0f9ff);
    --toast-bg: #0f172a;
    --toast-text: #ffffff;
}

/* TEMA ESCURO (DARK MODE) */
[data-theme="dark"] {
    --bg-main: #0f172a;
    --bg-header: linear-gradient(135deg, #0f172a, #1e1b4b, #311042);
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --card-bg: #1e293b;
    --card-border: #334155;
    --card-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
    --card-hover-border: #60a5fa;
    --code-bg: #0f172a;
    --code-text: #38bdf8;
    --btn-primary: linear-gradient(135deg, #3b82f6, #6366f1);
    --btn-primary-hover: linear-gradient(135deg, #2563eb, #4f46e5);
    --banner-bg: linear-gradient(135deg, #1e293b, #0f172a);
    --toast-bg: #38bdf8;
    --toast-text: #0f172a;
}

/* RESET E BASE */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
}

/* CANVAS CONFETTI (SOBREPOSIÇÃO) */
#canvasConfetti {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 9999;
}

/* BOTÃO DE TEMA FIXO */
.theme-toggle-wrapper {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.btn-theme {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--card-bg);
    color: var(--text-primary);
    border: 2px solid var(--card-border);
    padding: 10px 16px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: transform 0.2s, background 0.3s, border-color 0.3s;
}

.btn-theme:hover {
    transform: translateY(-2px) scale(1.03);
}

/* HEADER HERO COM CANVAS INTERATIVO */
header {
    position: relative;
    background: var(--bg-header);
    color: white;
    padding: 60px 20px 40px;
    text-align: center;
    overflow: hidden;
}

#canvasHero {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    opacity: 0.6;
}

.header-conteudo {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.icone-titulo {
    font-size: 64px;
    cursor: pointer;
    user-select: none;
    animation: pulseBounce 2.5s infinite ease-in-out;
}

@keyframes pulseBounce {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-12px) scale(1.1); }
}

header h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* LAYOUT CONTAINER */
.container {
    max-width: 1140px;
    margin: 40px auto;
    padding: 0 20px;
}

/* CARD DE INTRODUÇÃO */
.intro-card {
    background: var(--banner-bg);
    border: 2px solid var(--card-border);
    border-radius: 20px;
    padding: 28px;
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 35px;
    box-shadow: var(--card-shadow);
}

.intro-icone {
    font-size: 40px;
    background: var(--card-bg);
    padding: 12px;
    border-radius: 16px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.intro-body h2 {
    font-size: 1.4rem;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.exemplos {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    margin-top: 15px;
}

.exemplo-box {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 10px 16px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
}

.exemplo-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    font-weight: 700;
    color: var(--text-secondary);
}

code {
    font-family: 'Consolas', 'Fira Code', monospace;
    font-weight: 600;
    color: #ec4899;
}

/* PAINEL DE BUSCA E FILTROS */
.painel-pesquisa {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 24px;
    margin-bottom: 40px;
    box-shadow: var(--card-shadow);
}

.pesquisa-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}

.pesquisa-titulo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-icon {
    font-size: 30px;
}

.contador-badge {
    background: var(--code-bg);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.contador-badge strong {
    color: #3b82f6;
    font-size: 1.1rem;
    margin-left: 4px;
}

.campo-pesquisa {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

#campoBusca {
    flex: 1;
    padding: 14px 20px;
    border: 2px solid var(--card-border);
    border-radius: 12px;
    background: var(--bg-main);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: border-color 0.2s;
}

#campoBusca:focus {
    border-color: #3b82f6;
}

#limparBusca {
    background: #ef4444;
    color: white;
    border: none;
    padding: 0 20px;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
}

#limparBusca:hover {
    opacity: 0.9;
}

/* BOTÕES DE CATEGORIA */
.filtros-categorias {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-filtro {
    background: var(--code-bg);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-filtro:hover, .btn-filtro.active {
    background: #2563eb;
    color: white;
    border-color: #2563eb;
}

/* CATEGORIAS E SEÇÃO */
.categoria {
    margin-bottom: 45px;
}

.titulo-categoria {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.cat-icon {
    font-size: 32px;
}

.titulo-categoria h2 {
    font-size: 1.5rem;
}

.titulo-categoria p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* GRID DE EMOJIS */
.grid-emojis {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
    gap: 20px;
}

/* EMOJI CARD */
.emoji-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    padding: 20px;
    text-align: center;
    box-shadow: var(--card-shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    position: relative;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.emoji-card:hover {
    transform: translateY(-6px);
    border-color: var(--card-hover-border);
    box-shadow: 0 15px 30px rgba(0,0,0,0.1);
}

.emoji-grande {
    font-size: 52px;
    line-height: 1.2;
    cursor: pointer;
    user-select: none;
    transition: transform 0.2s;
}

.emoji-grande:hover {
    transform: scale(1.25) rotate(6deg);
}

.emoji-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
}

.codigo {
    background: var(--code-bg);
    color: var(--code-text);
    padding: 6px 12px;
    border-radius: 8px;
    font-family: monospace;
    font-size: 0.85rem;
    font-weight: 600;
    width: 100%;
}

/* BOTÃO COPIAR REQUISITADO */
.btn-copiar {
    width: 100%;
    background: var(--btn-primary);
    color: white;
    border: none;
    padding: 10px 14px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    transition: all 0.2s ease;
}

.btn-copiar:hover {
    background: var(--btn-primary-hover);
    transform: scale(1.02);
}

.btn-copiar.copiado {
    background: var(--btn-success);
}

/* MENSAGEM FINAL */
.mensagem-final {
    background: var(--banner-bg);
    border: 2px solid var(--card-border);
    border-radius: 24px;
    padding: 40px 20px;
    text-align: center;
    margin-top: 50px;
}

.anim-rocket {
    font-size: 50px;
    animation: pulseBounce 2s infinite ease-in-out;
}

.mensagem-final h2 {
    margin: 10px 0;
}

.formula {
    margin-top: 20px;
    font-size: 1.2rem;
    font-weight: 700;
}

/* TOAST FLOATING NOTIFICATION */
.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--toast-bg);
    color: var(--toast-text);
    padding: 12px 24px;
    border-radius: 30px;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    z-index: 10000;
    transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

.toast.hidden {
    opacity: 0;
    transform: translate(-50%, 40px);
    pointer-events: none;
}

/* RODAPÉ */
footer {
    text-align: center;
    padding: 30px;
    background: var(--card-bg);
    border-top: 1px solid var(--card-border);
    margin-top: 60px;
    color: var(--text-secondary);
}

/* RESPONSIVIDADE */
@media (max-width: 640px) {
    header h1 { font-size: 1.8rem; }
    .grid-emojis { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
    .theme-toggle-wrapper { top: 10px; right: 10px; }
    #themeText { display: none; }
}