/* ===========================================
   Sistema Multiplataforma — Design System
   Versão: 1.0.0
   =========================================== */

/* ============================================
   1. GOOGLE FONTS
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================
   2. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */
:root {
    /* Cores Primárias */
    --sm-primary: #2563eb;
    --sm-primary-dark: #1d4ed8;
    --sm-primary-light: #3b82f6;
    --sm-primary-50: #eff6ff;
    --sm-primary-100: #dbeafe;
    --sm-primary-200: #bfdbfe;

    /* Cores Secundárias */
    --sm-secondary: #7c3aed;
    --sm-secondary-dark: #6d28d9;
    --sm-secondary-light: #8b5cf6;

    /* Cores de Acento */
    --sm-accent: #06b6d4;
    --sm-accent-dark: #0891b2;

    /* Cores de Estado */
    --sm-success: #10b981;
    --sm-warning: #f59e0b;
    --sm-danger: #ef4444;
    --sm-info: #3b82f6;

    /* Neutros */
    --sm-gray-50: #f8fafc;
    --sm-gray-100: #f1f5f9;
    --sm-gray-200: #e2e8f0;
    --sm-gray-300: #cbd5e1;
    --sm-gray-400: #94a3b8;
    --sm-gray-500: #64748b;
    --sm-gray-600: #475569;
    --sm-gray-700: #334155;
    --sm-gray-800: #1e293b;
    --sm-gray-900: #0f172a;

    /* Superfícies */
    --sm-bg-primary: #f0f4f8;
    --sm-bg-card: #ffffff;
    --sm-bg-glass: rgba(255, 255, 255, 0.85);

    /* Gradientes */
    --sm-gradient-primary: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
    --sm-gradient-header: linear-gradient(135deg, #1e3a5f 0%, #2563eb 50%, #7c3aed 100%);
    --sm-gradient-subtle: linear-gradient(135deg, #eff6ff 0%, #f5f3ff 100%);

    /* Sombras */
    --sm-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --sm-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --sm-shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
    --sm-shadow-xl: 0 20px 50px rgba(0, 0, 0, 0.12);
    --sm-shadow-glow: 0 0 20px rgba(37, 99, 235, 0.2);

    /* Bordas */
    --sm-radius-sm: 8px;
    --sm-radius-md: 12px;
    --sm-radius-lg: 16px;
    --sm-radius-xl: 24px;
    --sm-radius-full: 9999px;

    /* Tipografia */
    --sm-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --sm-font-size-xs: 0.75rem;
    --sm-font-size-sm: 0.875rem;
    --sm-font-size-md: 1rem;
    --sm-font-size-lg: 1.125rem;
    --sm-font-size-xl: 1.25rem;
    --sm-font-size-2xl: 1.5rem;
    --sm-font-size-3xl: 2rem;
    --sm-font-size-4xl: 2.5rem;

    /* Espaçamento */
    --sm-space-1: 0.25rem;
    --sm-space-2: 0.5rem;
    --sm-space-3: 0.75rem;
    --sm-space-4: 1rem;
    --sm-space-5: 1.25rem;
    --sm-space-6: 1.5rem;
    --sm-space-8: 2rem;
    --sm-space-10: 2.5rem;
    --sm-space-12: 3rem;

    /* Transições */
    --sm-transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --sm-transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --sm-transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --sm-transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

    /* Z-Index Scale */
    --sm-z-dropdown: 100;
    --sm-z-sticky: 200;
    --sm-z-header: 300;
    --sm-z-modal-backdrop: 400;
    --sm-z-modal: 500;
    --sm-z-toast: 600;
}

/* ============================================
   3. RESET & BASE
   ============================================ */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--sm-font-family);
    font-size: var(--sm-font-size-md);
    color: var(--sm-gray-800);
    background-color: var(--sm-bg-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ============================================
   4. HEADER PRINCIPAL
   ============================================ */
.sm-header {
    background: var(--sm-gradient-header);
    color: white;
    padding: var(--sm-space-4) var(--sm-space-6);
    position: sticky;
    top: 0;
    z-index: var(--sm-z-header);
    box-shadow: var(--sm-shadow-lg);
    backdrop-filter: blur(10px);
}

.sm-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sm-space-4);
}

.sm-logo {
    display: flex;
    align-items: center;
    gap: var(--sm-space-3);
    text-decoration: none;
    color: white;
    flex-shrink: 0;
}

.sm-logo-icon {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--sm-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.sm-logo-text {
    font-size: var(--sm-font-size-lg);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.sm-logo-text span {
    font-weight: 400;
    opacity: 0.8;
}

.sm-logo-separator {
    width: 1px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    margin: 0 var(--sm-space-2);
}

.sm-logo-encomun {
    height: 34px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
    transition: transform var(--sm-transition-fast);
}

.sm-logo:hover .sm-logo-encomun {
    transform: scale(1.05);
}

/* ============================================
   5. NAVEGAÇÃO (TABS)
   ============================================ */
.sm-nav {
    display: flex;
    align-items: center;
    gap: var(--sm-space-2);
}

.sm-tab {
    display: flex;
    align-items: center;
    gap: var(--sm-space-2);
    padding: var(--sm-space-2) var(--sm-space-5);
    border-radius: var(--sm-radius-full);
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--sm-font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--sm-transition-base);
    text-decoration: none;
    white-space: nowrap;
    user-select: none;
}

.sm-tab:hover {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    transform: translateY(-1px);
}

.sm-tab.active {
    background: rgba(255, 255, 255, 0.95);
    color: var(--sm-primary);
    font-weight: 600;
    box-shadow: var(--sm-shadow-md);
    border-color: transparent;
}

.sm-tab i {
    font-size: 1.1rem;
}

/* ============================================
   6. ÁREA DO USUÁRIO (AUTH)
   ============================================ */
.sm-auth {
    display: flex;
    align-items: center;
    gap: var(--sm-space-3);
    flex-shrink: 0;
}

.sm-btn-auth {
    display: flex;
    align-items: center;
    gap: var(--sm-space-2);
    padding: var(--sm-space-2) var(--sm-space-5);
    border-radius: var(--sm-radius-full);
    font-size: var(--sm-font-size-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--sm-transition-base);
    text-decoration: none;
    border: none;
}

.sm-btn-login {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.sm-btn-login:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-1px);
}

.sm-btn-signup {
    background: white;
    color: var(--sm-primary);
}

.sm-btn-signup:hover {
    background: var(--sm-primary-50);
    transform: translateY(-1px);
    box-shadow: var(--sm-shadow-md);
}

/* Dropdown do Usuário */
.sm-user-menu {
    position: relative;
}

.sm-user-btn {
    display: flex;
    align-items: center;
    gap: var(--sm-space-2);
    padding: var(--sm-space-1) var(--sm-space-3) var(--sm-space-1) var(--sm-space-1);
    border-radius: var(--sm-radius-full);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: white;
    cursor: pointer;
    transition: all var(--sm-transition-base);
}

.sm-user-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.sm-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--sm-gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--sm-font-size-sm);
    color: white;
}

.sm-user-name {
    font-size: var(--sm-font-size-sm);
    font-weight: 500;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sm-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    background: var(--sm-bg-card);
    border-radius: var(--sm-radius-lg);
    box-shadow: var(--sm-shadow-xl);
    padding: var(--sm-space-2);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--sm-transition-base);
    z-index: var(--sm-z-dropdown);
    border: 1px solid var(--sm-gray-100);
}

.sm-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.sm-dropdown-item {
    display: flex;
    align-items: center;
    gap: var(--sm-space-3);
    padding: var(--sm-space-3) var(--sm-space-4);
    border-radius: var(--sm-radius-sm);
    color: var(--sm-gray-700);
    text-decoration: none;
    font-size: var(--sm-font-size-sm);
    font-weight: 500;
    transition: all var(--sm-transition-fast);
    cursor: pointer;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
}

.sm-dropdown-item:hover {
    background: var(--sm-primary-50);
    color: var(--sm-primary);
}

.sm-dropdown-item.danger:hover {
    background: #fef2f2;
    color: var(--sm-danger);
}

.sm-dropdown-divider {
    height: 1px;
    background: var(--sm-gray-100);
    margin: var(--sm-space-2) 0;
}

/* ============================================
   7. CONTEÚDO PRINCIPAL
   ============================================ */
.sm-content {
    width: 100%;
    min-height: calc(100vh - 72px);
}

.sm-content iframe {
    width: 100%;
    min-height: calc(100vh - 72px);
    border: none;
    display: block;
}

.sm-tab-panel {
    display: none;
    animation: smFadeIn 0.3s ease-out;
}

.sm-tab-panel.active {
    display: block;
}

/* ============================================
   8. TOAST NOTIFICATIONS
   ============================================ */
.sm-toast-container {
    position: fixed;
    top: var(--sm-space-8);
    right: var(--sm-space-6);
    z-index: var(--sm-z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--sm-space-3);
    pointer-events: none;
}

.sm-toast {
    display: flex;
    align-items: center;
    gap: var(--sm-space-3);
    padding: var(--sm-space-4) var(--sm-space-5);
    background: var(--sm-bg-card);
    border-radius: var(--sm-radius-md);
    box-shadow: var(--sm-shadow-xl);
    font-size: var(--sm-font-size-sm);
    font-weight: 500;
    pointer-events: auto;
    animation: smSlideIn 0.4s var(--sm-transition-spring);
    border-left: 4px solid var(--sm-primary);
    max-width: 400px;
}

.sm-toast.success {
    border-left-color: var(--sm-success);
}

.sm-toast.warning {
    border-left-color: var(--sm-warning);
}

.sm-toast.error {
    border-left-color: var(--sm-danger);
}

.sm-toast-exit {
    animation: smSlideOut 0.3s ease-in forwards;
}

/* ============================================
   9. LOADING OVERLAY
   ============================================ */
.sm-loading {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: var(--sm-z-modal);
    gap: var(--sm-space-4);
}

.sm-spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--sm-gray-200);
    border-top-color: var(--sm-primary);
    border-radius: 50%;
    animation: smSpin 0.8s linear infinite;
}

.sm-loading-text {
    font-size: var(--sm-font-size-sm);
    color: var(--sm-gray-500);
    font-weight: 500;
}

/* ============================================
   10. UTILITÁRIOS
   ============================================ */
.sm-hidden {
    display: none !important;
}

.sm-visible {
    display: block !important;
}

.sm-card {
    background: var(--sm-bg-card);
    border-radius: var(--sm-radius-lg);
    box-shadow: var(--sm-shadow-sm);
    border: 1px solid var(--sm-gray-100);
}

.sm-badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 10px;
    border-radius: var(--sm-radius-full);
    font-size: var(--sm-font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.sm-badge-primary {
    background: var(--sm-primary-100);
    color: var(--sm-primary-dark);
}

.sm-badge-success {
    background: #d1fae5;
    color: #065f46;
}

/* ============================================
   11. ANIMAÇÕES
   ============================================ */
@keyframes smFadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes smSlideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes smSlideOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }

    to {
        opacity: 0;
        transform: translateX(100px);
    }
}

@keyframes smSpin {
    to {
        transform: rotate(360deg);
    }
}

@keyframes smPulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ============================================
   12. RESPONSIVIDADE
   ============================================ */
@media (max-width: 1400px) {
    .sm-header-inner {
        flex-wrap: wrap;
        justify-content: center;
        padding-bottom: var(--sm-space-2);
    }

    .sm-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: var(--sm-space-2);
        flex-wrap: wrap;
        gap: 8px;
        padding-bottom: var(--sm-space-1);
    }

    .sm-tab {
        flex-shrink: 1;
    }
}

@media (max-width: 768px) {
    .sm-header {
        padding: var(--sm-space-3) var(--sm-space-4);
    }

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

    .sm-nav {
        gap: var(--sm-space-1);
    }

    .sm-tab {
        justify-content: center;
        font-size: 0.7rem;
        padding: var(--sm-space-2) var(--sm-space-2);
        gap: var(--sm-space-1);
    }

    .sm-tab i {
        font-size: 1rem;
    }

    .sm-logo-text {
        display: none;
    }

    .sm-logo-separator {
        display: none;
    }

    .sm-logo-encomun {
        height: 28px;
    }

    .sm-user-name {
        display: none;
    }
}

@media (max-width: 480px) {
    .sm-tab span {
        display: none;
    }

    .sm-tab i {
        font-size: 1.3rem;
    }
}

/* ============================================
   13. FOOTER
   ============================================ */
.sm-footer {
    background: var(--sm-gray-900);
    color: var(--sm-gray-400);
    text-align: center;
    padding: var(--sm-space-4);
    font-size: var(--sm-font-size-xs);
}

.sm-footer a {
    color: var(--sm-primary-light);
    text-decoration: none;
}

.sm-footer a:hover {
    text-decoration: underline;
}