/* Importação de Fonte e Variáveis de Cor */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&display=swap');

:root {
    --background: #111827;
    --foreground: #f9fafb;
    --glass-bg: rgba(26, 32, 44, 0.5);
    --border-color: rgba(255, 255, 255, 0.1);
    --primary-blue: #3b82f6;
    --primary-purple: #9333ea;
    --text-muted: #9ca3af;
    --valid-green: #22c55e;
    --invalid-red: #ef4444;
}

/* Reset Básico e Estilos Globais */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--background);
    color: var(--foreground);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.background-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 15% 15%, hsla(217, 91%, 60%, .1) 0%, transparent 30%), radial-gradient(circle at 85% 85%, hsla(259, 94%, 76%, .08) 0%, transparent 30%);
    z-index: -1;
}

.content-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.container {
    width: 100%;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

/* Efeito de Vidro (Glassmorphism) */
.glass-effect {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
}

/* Cabeçalho */
.main-header {
    position: sticky;
    top: 0;
    z-index: 50;
    border-bottom: 1px solid var(--border-color);
}
.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}
.logo-icon-wrapper {
    padding: 0.5rem;
    border-radius: 0.75rem;
    display: flex; 
    align-items: center; 
    justify-content: center;
}
.logo-icon-wrapper i {
    color: white;
    width: 1.5rem;
    height: 1.5rem;
}
.logo-image {
    width: 48px;
    height: 48px;
}
.logo-icon-wrapper .logo-image {
    width: 48px; /* 1.5rem */
    height: 48px; /* 1.5rem */
}
h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Conteúdo Principal */
main {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 3rem 0;
}
.main-content {
    width: 100%;
    text-align: center;
}

/* Seção Hero */
.hero-section {
    margin-bottom: 3rem;
}
.hero-section h2 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}
.hero-section p {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 42rem;
    margin: 0 auto;
}
.gradient-text {
    background: linear-gradient(135deg, #60a5fa, #a78bfa, #f472b6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Seção de Busca */
.search-form {
    border-radius: 1rem;
    padding: 1rem;
}
.form-inner {
    display: flex;
    gap: 1rem;
}
.search-input {
    flex-grow: 1;
    height: 3.5rem;
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.2);
    padding: 0 1rem;
    color: var(--foreground);
    font-size: 1rem;
}
.search-input:focus {
    outline: none;
    border-color: var(--primary-blue);
}
.search-button {
    height: 3.5rem;
    padding: 0 2rem;
    border-radius: 0.5rem;
    background-image: linear-gradient(to right, var(--primary-blue), var(--primary-purple));
    color: white;
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.search-button .button-text {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.search-button .loader {
    width: 1.5rem;
    height: 1.5rem;
    border: 2px solid white;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
.hidden { display: none; }
.loading-message { margin-top: 1rem; color: var(--primary-blue); }

/* Seção de Features */
.features-section {
    margin-top: 4rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.feature-card {
    border-radius: 0.75rem;
    padding: 1.5rem;
}
.feature-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    background-image: linear-gradient(to right, var(--primary-blue), var(--primary-purple));
}
.feature-icon i { color: white; }
.feature-card h3 { font-size: 1.25rem; font-weight: 600; margin-bottom: 0.5rem; }
.feature-card p { color: var(--text-muted); }

/* Rodapé */
.main-footer {
    padding: 1rem 0;
    text-align: center;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}
.main-footer p {
    font-size: 0.875rem;
    color: #a0aec0;
}
.main-footer .subtitle {
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

/* --- ESTILOS PÁGINA DE DOCUMENTO --- */
.button-back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--foreground);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: background-color 0.2s;
}
.button-back:hover { background-color: rgba(255, 255, 255, 0.1); }
.result-card {
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
    border-width: 2px;
}
.result-card.valid { border-color: rgba(34, 197, 94, 0.5); background-color: rgba(34, 197, 94, 0.05); }
.result-card.invalid { border-color: rgba(239, 68, 68, 0.5); background-color: rgba(239, 68, 68, 0.05); }
.result-icon { margin-bottom: 1rem; }
.result-icon i { width: 4rem; height: 4rem; margin: 0 auto; }
.result-card.valid .result-icon i { color: var(--valid-green); }
.result-card.invalid .result-icon i { color: var(--invalid-red); }
.result-card h2 { font-size: 1.875rem; font-weight: 700; margin-bottom: 0.5rem; }
.result-card.valid h2 { color: var(--valid-green); }
.result-card.invalid h2 { color: var(--invalid-red); }
.result-code { font-size: 1.25rem; color: var(--text-muted); margin-bottom: 1rem; }
.result-code span { font-family: monospace; font-weight: 600; color: var(--foreground); }
.result-status { display: flex; align-items: center; justify-content: center; gap: 0.5rem; }
.result-card.valid .result-status { color: var(--valid-green); }
.result-card.invalid .result-status { color: var(--invalid-red); }

.details-card {
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
    text-align: left;
}
.details-card h3, .details-card h4 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; text-align: center;}
.details-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 1.5rem; }.logo-icon
.detail-item { display: flex; align-items: flex-start; gap: 0.75rem; }
.detail-item i { color: var(--primary-blue); margin-top: 4px; }
.detail-item span { font-size: 0.875rem; color: var(--text-muted); }
.detail-item p { font-weight: 600; }
.description { color: var(--text-muted); line-height: 1.6; }
.hash-container { background-color: rgba(0,0,0,0.2); border-radius: 0.5rem; padding: 1rem; margin-top: 1.5rem; }
.hash-container span { font-size: 0.875rem; color: var(--text-muted); }
.hash-container p { font-family: monospace; font-size: 0.875rem; color: var(--primary-blue); word-break: break-all; margin-top: 0.25rem; }

.preview-image {
    max-width: 100%;
    height: auto;
    border-radius: 0.75rem;
    margin-top: 1rem;
    border: 1px solid var(--border-color);
    display: block;
}

.text-center { text-align: center; }

.actions-container { display: flex; justify-content: center; gap: 1rem; }
.action-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    border: 1px solid var(--border-color);
    color: var(--foreground);
    background: transparent;
    cursor: pointer;
}
.action-button:hover { background-color: rgba(255, 255, 255, 0.1); }
.action-button.primary {
    background-image: linear-gradient(to right, var(--primary-blue), var(--primary-purple));
    border: none;
}
.action-button.primary:hover { opacity: 0.9; }

/* Media Queries para Responsividade */
@media (max-width: 768px) {
    .hero-section h2 { font-size: 2.5rem; }
    .features-section { grid-template-columns: 1fr; }
    .form-inner { flex-direction: column; }
    .details-grid { grid-template-columns: 1fr; }
}