/**
 * Design System - Portal de Serviços de Piraí
 * Sistema de design premium com tokens semânticos
 * Baseado em especificações WCAG 2.1 AA
 */

:root {
    /* ========================================
       CORES - Paleta Institucional
       ======================================== */

    /* Azul Institucional (Primário) */
    --action-primary: #003D82;
    --action-primary-hover: #0052AD;
    --action-primary-active: #002A5C;

    /* Azul Profundo (CTA Forte) */
    --action-strong: #001F3F;
    --action-strong-hover: #00152B;

    /* Laranja Destaque (Secundário) */
    --action-secondary: #FF6B35;
    --action-secondary-hover: #FF8555;

    /* Texto */
    --text-primary: #0A1628;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --text-on-dark: #FFFFFF;
    --text-on-brand: #FFFFFF;

    /* Superfícies */
    --surface-page: #F8FAFC;
    --surface-section: #F1F5F9;
    --surface-card: #FFFFFF;
    --surface-subtle: #EFF6FF;
    --surface-elevated: #FFFFFF;

    /* Bordas */
    --border-default: #E2E8F0;
    --border-subtle: #F1F5F9;
    --border-focus: #3B82F6;

    /* Status */
    --status-success: #059669;
    --status-warning: #F59E0B;
    --status-error: #DC2626;

    /* ========================================
       ESPAÇAMENTO
       ======================================== */
    --space-1: 4px;
    --space-2: 8px;
    --space-3: 12px;
    --space-4: 16px;
    --space-6: 24px;
    --space-8: 32px;
    --space-12: 48px;
    --space-16: 64px;
    --space-20: 80px;

    /* ========================================
       TIPOGRAFIA - Com Fluid Typography
       ======================================== */

    /* Tamanhos - Fluid (responsivos) */
    --text-xs: 12px;
    --text-sm: 14px;
    --text-base: clamp(14px, 4vw, 16px);
    --text-lg: clamp(16px, 4.5vw, 18px);
    --text-xl: clamp(18px, 5vw, 20px);
    --text-2xl: clamp(20px, 6vw, 24px);
    --text-3xl: clamp(24px, 7vw, 30px);
    --text-4xl: clamp(28px, 8vw, 36px);
    --text-5xl: clamp(32px, 10vw, 48px);

    /* Pesos */
    --font-normal: 400;
    --font-medium: 500;
    --font-semibold: 600;
    --font-bold: 700;

    /* ========================================
       BORDER RADIUS
       ======================================== */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 24px;
    --radius-full: 9999px;

    /* ========================================
       SOMBRAS
       ======================================== */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-card: 0 2px 8px rgba(0, 61, 130, 0.08);
    --shadow-card-hover: 0 8px 24px rgba(0, 61, 130, 0.15);
    --shadow-button-primary: 0 4px 12px rgba(0, 61, 130, 0.2);

    /* ========================================
       ANIMAÇÕES
       ======================================== */
    --duration-fast: 150ms;
    --duration-base: 300ms;
    --duration-slow: 500ms;

    --ease-default: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size: var(--text-base);
    font-weight: var(--font-normal);
    color: var(--text-primary);
    background: var(--surface-page);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    width: 100%;
    min-height: 100vh;
    position: relative;
}

/* ========================================
   TIPOGRAFIA
   ======================================== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-bold);
    line-height: 1.2;
    color: var(--text-primary);
}

h1 {
    font-size: var(--text-5xl);
}

h2 {
    font-size: var(--text-4xl);
}

h3 {
    font-size: var(--text-3xl);
}

h4 {
    font-size: var(--text-2xl);
}

h5 {
    font-size: var(--text-xl);
}

h6 {
    font-size: var(--text-lg);
}

p {
    margin-bottom: var(--space-4);
}

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

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

/* ========================================
   BOTÕES
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    border: none;
    border-radius: var(--radius-md);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    cursor: pointer;
    transition: all var(--duration-base) var(--ease-default);
    text-decoration: none;
    white-space: nowrap;
}

.btn:focus {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

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

/* Botão Primary */
.btn-primary {
    background: var(--action-primary);
    color: var(--text-on-brand);
    box-shadow: var(--shadow-button-primary);
}

.btn-primary:hover:not(:disabled) {
    background: var(--action-primary-hover);
    transform: translateY(-1px);
}

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

/* Botão Secondary */
.btn-secondary {
    background: var(--surface-card);
    color: var(--text-primary);
    border: 2px solid var(--border-default);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
    border-color: var(--action-primary);
    box-shadow: var(--shadow-md);
}

/* Botão Strong (CTA) */
.btn-strong {
    background: var(--action-strong);
    color: var(--text-on-dark);
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    box-shadow: var(--shadow-lg);
}

.btn-strong:hover:not(:disabled) {
    background: var(--action-strong-hover);
    transform: scale(1.02);
}

/* Botões de Status */
.btn-success {
    background: var(--status-success);
    color: var(--text-on-dark);
    box-shadow: var(--shadow-lg);
}

.btn-warning {
    background: var(--status-warning);
    color: var(--text-on-dark);
    box-shadow: var(--shadow-lg);
}

.btn-error {
    background: var(--status-error);
    color: var(--text-on-dark);
    box-shadow: var(--shadow-lg);
}

.btn-success:hover:not(:disabled),
.btn-warning:hover:not(:disabled),
.btn-error:hover:not(:disabled) {
    filter: brightness(1.1);
    transform: scale(1.05);
}

/* Botão Pill */
.btn-pill {
    border-radius: var(--radius-full);
}

/* ========================================
   INPUTS E FORMULÁRIOS
   ======================================== */
.form-group {
    margin-bottom: var(--space-6);
}

.form-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    margin-bottom: var(--space-2);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    background: var(--surface-card);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    font-size: var(--text-base);
    color: var(--text-primary);
    transition: all var(--duration-base) var(--ease-default);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: var(--text-muted);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--action-primary);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.form-input:disabled,
.form-select:disabled,
.form-textarea:disabled {
    background: var(--surface-section);
    opacity: 0.6;
    cursor: not-allowed;
}

.form-helper {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    margin-top: var(--space-2);
}

.form-error {
    font-size: var(--text-sm);
    color: var(--status-error);
    margin-top: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

/* ========================================
   CARDS
   ======================================== */
.card {
    background: var(--surface-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    box-shadow: var(--shadow-card);
    transition: all var(--duration-base) var(--ease-default);
}

.card-interactive {
    cursor: pointer;
}

.card-interactive:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: rgba(0, 61, 130, 0.3);
}

.card-interactive:focus {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

.card-header {
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--border-subtle);
}

.card-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
}

.card-body {
    color: var(--text-secondary);
}

/* ========================================
   HEADER
   ======================================== */
.header-main {
    background: linear-gradient(135deg, var(--action-primary) 0%, var(--action-strong) 100%);
    height: 80px;
    padding: 0 var(--space-6);
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: height var(--duration-base) var(--ease-default);
    width: 100%;
    display: flex;
    align-items: center;
}

.header-main.scrolled {
    height: 64px;
}

.header-container {
    max-width: 1440px;
    margin: 0 auto;
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    flex-wrap: nowrap;
}

.header-logo {
    height: 40px;
    width: auto;
    max-width: 150px;
    filter: brightness(0) invert(1);
    flex-shrink: 0;
}

.header-search {
    flex: 1;
    max-width: 600px;
}

.search-input {
    width: 100%;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    padding: var(--space-3) var(--space-4);
    color: var(--text-on-dark);
    font-size: var(--text-base);
    transition: all var(--duration-base) var(--ease-default);
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

.search-input:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
}

.search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1);
}

.header-login-btn {
    background: var(--surface-card);
    color: var(--action-primary);
    padding: var(--space-3) var(--space-6);
    border-radius: var(--radius-md);
    font-weight: var(--font-semibold);
    font-size: var(--text-base);
    box-shadow: var(--shadow-button-primary);
    transition: all var(--duration-base) var(--ease-default);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.header-login-btn:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-lg);
}

.header-login-btn:active {
    transform: scale(0.98);
}

/* ========================================
   GRID DE CATEGORIAS
   ======================================== */
.categories-section {
    padding: var(--space-12) var(--space-4);
    background: var(--surface-page);
}

.categories-container {
    max-width: 1280px;
    margin: 0 auto;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-4);
}

.category-card {
    background: var(--surface-card);
    padding: var(--space-6);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-card);
    text-align: center;
    cursor: pointer;
    transition: all var(--duration-base) var(--ease-default);
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-card-hover);
    border-color: rgba(0, 61, 130, 0.3);
}

.category-card:focus {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

.category-card:active {
    transform: translateY(-2px);
}

.category-card:hover .category-icon {
    transform: scale(1.1);
}

.category-icon {
    font-size: 48px;
    color: var(--action-primary);
    margin-bottom: var(--space-4);
    transition: transform var(--duration-base) var(--ease-spring);
}

.category-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-1);
}

/* ========================================
   FOOTER
   ======================================== */
.footer-main {
    background: var(--action-strong);
    color: var(--text-on-dark);
    padding: var(--space-16) var(--space-4);
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-8);
    margin-bottom: var(--space-8);
}

.footer-section-title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-2);
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
}

.footer-link {
    display: block;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-2);
    transition: all var(--duration-fast) var(--ease-default);
}

.footer-link:hover {
    color: rgba(255, 255, 255, 1);
    text-decoration: underline;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: var(--space-6);
    text-align: center;
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin: var(--space-6) 0;
}

.social-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--duration-base) var(--ease-default);
}

.social-icon:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.footer-copyright {
    font-size: var(--text-sm);
    color: rgba(255, 255, 255, 0.6);
}

/* ========================================
   UTILITÁRIOS
   ======================================== */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}

.container-wide {
    max-width: 1440px;
}

.section {
    padding: var(--space-12) 0;
}

.section-lg {
    padding: var(--space-16) 0;
}

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

.mt-4 {
    margin-top: var(--space-4);
}

.mt-6 {
    margin-top: var(--space-6);
}

.mt-8 {
    margin-top: var(--space-8);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-6 {
    margin-bottom: var(--space-6);
}

.mb-8 {
    margin-bottom: var(--space-8);
}

/* ========================================
   RESPONSIVIDADE - Mobile First
   ======================================== */

/* PWA Safe Area Support */
@supports (padding: env(safe-area-inset-bottom)) {
    body {
        padding-bottom: env(safe-area-inset-bottom);
    }
}

/* ===== Extra Small Devices (320px) ===== */
@media (max-width: 320px) {
    :root {
        --space-4: 12px;
        --space-6: 20px;
        --space-8: 28px;
    }

    .container {
        padding: 0 var(--space-2);
    }

    .header-main {
        height: 56px;
        padding: 0 var(--space-2);
    }

    .header-logo {
        height: 32px;
    }

    .categories-grid {
        grid-template-columns: 1fr !important;
        gap: var(--space-2);
    }

    .card {
        padding: var(--space-3);
        border-radius: var(--radius-md);
    }

    .btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-sm);
    }
}

/* ===== Small Mobile (375px - iPhone SE, iPhone 12/13 mini) ===== */
@media (min-width: 321px) and (max-width: 375px) {
    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
}

/* ===== Mobile Devices (até 425px) ===== */
@media (max-width: 425px) {
    .header-main {
        height: 64px;
        padding: 0 var(--space-3);
        min-height: 64px;
    }

    .header-container {
        gap: var(--space-2);
    }

    .header-logo {
        height: 36px;
        max-width: 120px;
    }

    .header-search {
        display: none;
    }

    .header-login-btn {
        padding: var(--space-2) var(--space-3);
        font-size: var(--text-sm);
        white-space: nowrap;
    }
    
    .header-login-btn i {
        font-size: 18px;
    }

    .categories-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }

    .category-card {
        padding: var(--space-4);
    }

    .category-icon {
        font-size: 36px;
    }

    .category-title {
        font-size: var(--text-base);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .footer-main {
        padding: var(--space-12) var(--space-4);
    }

    /* Touch-friendly buttons */
    .btn {
        padding: var(--space-3) var(--space-4);
        min-height: 44px;
        min-width: 44px;
    }

    .card {
        padding: var(--space-4);
        border-radius: var(--radius-lg);
    }

    .hide-on-mobile {
        display: none !important;
    }
}

/* ===== Large Mobile & Small Tablets (426px - 768px) ===== */
@media (min-width: 426px) and (max-width: 768px) {
    .header-main {
        height: 64px;
        padding: 0 var(--space-4);
    }

    .header-search {
        display: none;
    }

    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-4);
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }
}

/* ===== Tablets (768px - 1024px) ===== */
@media (min-width: 768px) and (max-width: 1024px) {
    .header-main {
        height: 72px;
    }

    .header-search {
        max-width: 400px;
    }

    .categories-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-4);
    }

    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== Desktop (1024px - 1440px) ===== */
@media (min-width: 1024px) and (max-width: 1440px) {
    .categories-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

/* ===== Large Desktop (1440px+) ===== */
@media (min-width: 1440px) {
    .container {
        max-width: 1440px;
        padding: 0 var(--space-8);
    }

    .categories-grid {
        grid-template-columns: repeat(6, 1fr);
        gap: var(--space-6);
    }

    .header-main {
        height: 80px;
    }
}

/* ===== Orientation Media Queries ===== */
@media (orientation: landscape) and (max-height: 500px) {

    /* Landscape mode on phones */
    .header-main {
        height: 56px;
    }

    .section {
        padding: var(--space-6) 0;
    }

    .section-lg {
        padding: var(--space-8) 0;
    }
}

@media (orientation: portrait) and (min-width: 768px) {

    /* Portrait tablets */
    .categories-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===== Prevent Horizontal Scroll ===== */
* {
    max-width: 100%;
}

body {
    overflow-x: hidden;
}

/* ===== Header Scroll Behavior ===== */
.header-main.scrolled {
    height: 64px;
    box-shadow: var(--shadow-lg);
}

@media (max-width: 768px) {
    .header-main.scrolled {
        height: 56px;
    }
}

/* ========================================
   ACESSIBILIDADE
   ======================================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

*:focus-visible {
    outline: 2px solid var(--border-focus);
    outline-offset: 2px;
}

/* Animação de loading */
@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

.loading {
    animation: rotate 1s linear infinite;
}