/* ==========================================================================
   Utilweb - Global Stylesheet v4.0 (Completo e Unificado)
   ========================================================================== */

:root {
    /* Paleta de Cores - Modo Claro (Verde e Cinza) */
    --c-primary: #128C7E; --c-secondary: #4CAF50; --c-success: #4CAF50; --c-warning: #FFB74D;
    --c-background: #F8F9FA; --c-surface: #FFFFFF;
    --c-text-primary: #343a40; --c-text-secondary: #6c757d; --c-border: #dee2e6;
    --c-primary-alpha: rgba(18, 140, 126, 0.2);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-size-base: 16px; --line-height-base: 1.6;
    --spacing-sm: 0.5rem; --spacing-md: 1rem; --spacing-lg: 1.5rem; --spacing-xl: 2rem; --spacing-xxl: 3rem;
    --border-radius: 8px; --border-radius-lg: 12px;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05); --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08); --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.1);
    --transition-fast: 0.15s ease-in-out; --transition-base: 0.3s ease-in-out;
}

[data-theme="dark"] {
    --c-primary: #20c997; --c-secondary: #5cb85c; --c-success: #5cb85c;
    --c-background: #1e2124; --c-surface: #2a2e33;
    --c-text-primary: #e9ecef; --c-text-secondary: #adb5bd; --c-border: #495057;
    --c-primary-alpha: rgba(32, 201, 151, 0.2);
}

/* --- RESET E GLOBAIS --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--font-size-base); scroll-behavior: smooth; }
body { font-family: var(--font-family); background-color: var(--c-background); color: var(--c-text-primary); line-height: var(--line-height-base); -webkit-font-smoothing: antialiased; transition: background-color var(--transition-base), color var(--transition-base); }
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; color: var(--c-text-primary); }
p { margin-bottom: var(--spacing-md); max-width: 75ch; }
a { color: var(--c-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--c-secondary); text-decoration: underline; }
img, svg { max-width: 100%; height: auto; display: block; }
:focus-visible { outline: 3px solid var(--c-primary); outline-offset: 3px; border-radius: var(--border-radius); }
.container { width: 100%; max-width: 1140px; margin-left: auto; margin-right: auto; padding-left: var(--spacing-lg); padding-right: var(--spacing-lg); }
.section-title { text-align: center; margin-bottom: var(--spacing-xl); font-size: 2rem; }

/* --- HEADER --- */
.site-header { padding: var(--spacing-md) 0; background-color: var(--c-surface); position: sticky; top: 0; z-index: 1000; transition: transform 0.3s ease-in-out, background-color var(--transition-base), box-shadow var(--transition-base); }
body.scrolled .site-header { box-shadow: var(--shadow-md); }
.site-header--hidden { transform: translateY(-100%); }
.header-container { display: flex; justify-content: space-between; align-items: center; }
.logo a { font-size: 1.5rem; font-weight: 700; color: var(--c-text-primary); }
.logo a:hover { text-decoration: none; }
.main-nav { margin: 0 var(--spacing-lg); }
.nav-list { display: flex; gap: var(--spacing-lg); list-style: none; }
.nav-link { font-weight: 600; color: var(--c-text-secondary); padding: var(--spacing-sm) 0; position: relative; }
.nav-link::after { content: ''; position: absolute; bottom: 0; left: 0; width: 0; height: 2px; background-color: var(--c-primary); transition: width var(--transition-base); }
.nav-link:hover, .nav-link.active { color: var(--c-text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }
.header-actions { display: flex; align-items: center; gap: var(--spacing-md); }

/* --- DARK MODE TOGGLE --- */
.dark-mode-toggle { background: var(--c-border); border: none; width: 50px; height: 26px; border-radius: 13px; cursor: pointer; position: relative; display: flex; align-items: center; transition: background-color var(--transition-base); }
.dark-mode-toggle::after { content: ''; position: absolute; left: 3px; width: 20px; height: 20px; background: white; border-radius: 50%; transition: transform var(--transition-base); }
[data-theme="dark"] .dark-mode-toggle { background-color: var(--c-primary); }
[data-theme="dark"] .dark-mode-toggle::after { transform: translateX(24px); }
.dark-mode-toggle .icon-sun, .dark-mode-toggle .icon-moon { position: absolute; width: 16px; height: 16px; background-size: contain; background-repeat: no-repeat; transition: opacity var(--transition-base); }
.icon-sun { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23F9A825'%3E%3Cpath d='M12 7c-2.76 0-5 2.24-5 5s2.24 5 5 5 5-2.24 5-5-2.24-5-5-5zM2 13h2c.55 0 1-.45 1-1s-.45-1-1-1H2c-.55 0-1 .45-1 1s.45 1 1 1zm18 0h2c.55 0 1-.45 1-1s-.45-1-1-1h-2c-.55 0-1 .45-1 1s.45 1 1 1zM11 2v2c0 .55.45 1 1 1s1-.45 1-1V2c0-.55-.45-1-1-1s-1 .45-1 1zm0 18v2c0 .55.45 1 1 1s1-.45 1-1v-2c0-.55-.45-1-1-1s-1 .45-1 1zM5.64 5.64c-.39-.39-1.02-.39-1.41 0-.39.39-.39 1.02 0 1.41l1.41 1.41c.39.39 1.02.39 1.41 0 .39-.39.39-1.02 0-1.41L5.64 5.64zm12.72 12.72c-.39-.39-1.02-.39-1.41 0-.39.39-.39 1.02 0 1.41l1.41 1.41c.39.39 1.02.39 1.41 0 .39-.39.39-1.02 0-1.41l-1.41-1.41zM18.36 5.64l-1.41 1.41c-.39.39-.39 1.02 0 1.41.39.39 1.02.39 1.41 0l1.41-1.41c.39-.39.39-1.02 0-1.41-.39-.39-1.02-.39-1.41 0zm-12.72 12.72l-1.41 1.41c-.39.39-.39 1.02 0 1.41.39.39 1.02.39 1.41 0l1.41-1.41c.39-.39.39-1.02 0-1.41-.39-.39-1.02-.39-1.41 0z'/%3E%3C/svg%3E"); left: 4px; opacity: 1; }
.icon-moon { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23FFFFFF'%3E%3Cpath d='M12 2c-5.52 0-10 4.48-10 10s4.48 10 10 10c2.25 0 4.33-.74 6-2.02-.34-.02-.68-.03-1.02-.03-4.42 0-8-3.58-8-8s3.58-8 8-8c.34 0 .68 0 1.02.03C16.33 2.74 14.25 2 12 2z'/%3E%3C/svg%3E"); right: 4px; opacity: 0; }
[data-theme="dark"] .icon-sun { opacity: 0; }
[data-theme="dark"] .icon-moon { opacity: 1; }

/* --- SEARCH --- */
.search-container { position: relative; max-width: 350px; margin: 0 var(--spacing-md); }
#search-input { width: 100%; padding: 0.6rem 1rem; font-size: 0.95rem; border: 2px solid var(--c-border); border-radius: 20px; background-color: var(--c-background); color: var(--c-text-primary); transition: all var(--transition-base); }
#search-input:focus { border-color: var(--c-primary); box-shadow: 0 0 0 3px var(--c-primary-alpha); outline: none; }
.search-close-btn { position: absolute; top: 50%; right: 0.5rem; transform: translateY(-50%); background: none; border: none; cursor: pointer; padding: 0.25rem; color: var(--c-text-secondary); line-height: 1; font-size: 1.5rem; display: none; }
.search-container.is-active .search-close-btn { display: block; }
.search-container.is-active #search-input { padding-right: 2.5rem; }
.search-dropdown { position: absolute; top: calc(100% + 5px); left: 0; width: 100%; background-color: var(--c-surface); border-radius: var(--border-radius-lg); box-shadow: var(--shadow-lg); z-index: 1001; overflow: hidden; border: 1px solid var(--c-border); max-height: 70vh; overflow-y: auto; }
.search-dropdown ul { list-style: none; padding: var(--spacing-sm); }
.search-dropdown li a { display: flex; justify-content: space-between; align-items: center; padding: 0.8rem var(--spacing-md); border-radius: var(--border-radius); transition: background-color var(--transition-fast); gap: var(--spacing-sm); }
.search-dropdown li a:hover { background-color: var(--c-background); text-decoration: none; }
.suggestion-title { font-weight: 600; color: var(--c-text-primary); white-space: normal; }
.suggestion-type { font-size: 0.8rem; color: var(--c-text-secondary); background-color: var(--c-border); padding: 0.2rem 0.5rem; border-radius: 10px; flex-shrink: 0; }
.popular-searches-header, .no-results { padding: 0.8rem var(--spacing-md); font-size: 0.9rem; font-weight: 600; color: var(--c-text-secondary); background-color: var(--c-background); border-bottom: 1px solid var(--c-border); }
.no-results { text-align: center; }

/* --- MOBILE MENU --- */
.mobile-menu-toggle { display: none; } 
@media (max-width: 992px) {
    .main-nav { display: none; }
    .mobile-menu-toggle { display: block; background: none; border: none; width: 30px; height: 30px; cursor: pointer; z-index: 1002; }
    .hamburger-icon, .hamburger-icon::before, .hamburger-icon::after { content: ''; display: block; width: 100%; height: 3px; background-color: var(--c-text-primary); border-radius: 3px; transition: transform var(--transition-base), opacity var(--transition-base); position: relative; }
    .hamburger-icon::before { transform: translateY(-8px); }
    .hamburger-icon::after { transform: translateY(8px); }
    .mobile-menu-toggle[aria-expanded="true"] .hamburger-icon { background-color: transparent; }
    .mobile-menu-toggle[aria-expanded="true"] .hamburger-icon::before { transform: translateY(0) rotate(45deg); }
    .mobile-menu-toggle[aria-expanded="true"] .hamburger-icon::after { transform: translateY(0) rotate(-45deg); }
    .nav-list { position: fixed; top: 0; right: 0; width: 80%; max-width: 320px; height: 100vh; background-color: var(--c-surface); flex-direction: column; padding: var(--spacing-xxl) var(--spacing-lg); gap: var(--spacing-md); transform: translateX(100%); transition: transform var(--transition-base); box-shadow: -5px 0 15px rgba(0,0,0,0.1); display: flex; z-index: 1001; }
    .nav-list.active { transform: translateX(0); }
    .nav-list .nav-link { font-size: 1.2rem; }
}

@media (max-width: 768px) {
    .header-container { flex-wrap: wrap; justify-content: space-between; }
    .search-container { order: 3; width: 100%; max-width: 100%; margin: var(--spacing-md) 0 0 0; }
    .site-header { height: auto; padding-bottom: var(--spacing-md); }
    .logo a { margin-right: auto; }
    .header-actions { margin-left: var(--spacing-lg); }
}

/* --- ESTILOS DA PÁGINA INICIAL (RECUPERADOS) --- */
.hero-section { text-align: center; padding: var(--spacing-xxl) 0; }
.hero-section h1 { font-size: 3rem; margin-bottom: var(--spacing-md); }
.hero-section p { font-size: 1.25rem; color: var(--c-text-secondary); max-width: 60ch; margin: 0 auto; }
.home-container { max-width: 960px; }
.category-title { font-size: 1.75rem; text-align: left; margin-bottom: var(--spacing-lg); border-bottom: 2px solid var(--c-border); padding-bottom: var(--spacing-sm); }
.card { background-color: var(--c-surface); border-radius: var(--border-radius); box-shadow: var(--shadow-sm); border: 1px solid var(--c-border); transition: transform var(--transition-fast), box-shadow var(--transition-fast); }
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); text-decoration: none; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--spacing-lg); }
.tools-grid .card { padding: var(--spacing-lg); }
.tools-grid h3 { font-size: 1.1rem; margin-top: 0; margin-bottom: var(--spacing-sm); }
.tools-grid p { font-size: 0.9rem; color: var(--c-text-secondary); margin-bottom: 0; }

/* --- FOOTER --- */
.main-footer { background-color: var(--c-surface); padding: var(--spacing-xxl) 0 var(--spacing-lg); color: var(--c-text-secondary); font-size: 0.9rem; border-top: 1px solid var(--c-border); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: var(--spacing-xl); margin-bottom: var(--spacing-xxl); }
.footer-heading { font-size: 1rem; font-weight: 600; color: var(--c-text-primary); margin-bottom: var(--spacing-md); }
.footer-col a { display: block; margin-bottom: var(--spacing-sm); }
.footer-bottom { border-top: 1px solid var(--c-border); padding-top: var(--spacing-lg); text-align: center; }
@media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; } .footer-col-main { grid-column: 1 / -1; } }
@media (max-width: 480px) { .footer-grid { grid-template-columns: 1fr; } }

.hidden { display: none !important; }