/* =====================================================
   REPOSITÓRIO ISPTUNDAVALA - DESIGN PROFISSIONAL v2.0
   Inspirado em: RCAAP, DSpace, Zenodo, ResearchGate
   ===================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&display=swap');
@import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.0/css/all.min.css');

:root {
    /* Paleta de Cores Principal */
    --primary-50: #eff6ff;
    --primary-100: #dbeafe;
    --primary-200: #bfdbfe;
    --primary-300: #93c5fd;
    --primary-400: #60a5fa;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --primary-800: #1e40af;
    --primary-900: #1e3a8a;
    --primary-950: #172554;

    /* Cores Secundárias */
    --accent-50: #f0fdf4;
    --accent-500: #22c55e;
    --accent-600: #16a34a;
    
    /* Neutras */
    --white: #ffffff;
    --slate-50: #f8fafc;
    --slate-100: #f1f5f9;
    --slate-200: #e2e8f0;
    --slate-300: #cbd5e1;
    --slate-400: #94a3b8;
    --slate-500: #64748b;
    --slate-600: #475569;
    --slate-700: #334155;
    --slate-800: #1e293b;
    --slate-900: #0f172a;
    --slate-950: #020617;
    
    /* Funcionais */
    --success: #10b981;
    --success-light: #d1fae5;
    --warning: #f59e0b;
    --warning-light: #fef3c7;
    --danger: #ef4444;
    --danger-light: #fee2e2;
    --info: #3b82f6;
    --info-light: #dbeafe;
    
    /* Sombras Refinadas */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.06), 0 2px 4px rgba(0,0,0,0.04);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.08), 0 4px 6px rgba(0,0,0,0.04);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
    --shadow-2xl: 0 25px 50px rgba(0,0,0,0.12);
    
    /* Layout */
    --sidebar-width: 280px;
    --sidebar-collapsed: 72px;
    --header-height: 68px;
    --content-max-width: 1400px;
    
    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius: 10px;
    --radius-lg: 14px;
    --radius-xl: 18px;
    --radius-2xl: 24px;
    --radius-full: 9999px;
    
    /* Transições */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 350ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--slate-50);
    color: var(--slate-800);
    line-height: 1.6;
    overflow-x: hidden;
    font-size: 14px;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    cursor: pointer;
    border: none;
    font-family: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

/* ============ SCROLLBAR CUSTOM ============ */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--slate-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--slate-400);
}

/* ============ LOGIN PAGE ============ */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 40%, #1d4ed8 70%, #3b82f6 100%);
    position: relative;
    overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(34, 197, 94, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 80%, rgba(245, 158, 11, 0.08) 0%, transparent 50%);
    animation: pulseGradient 8s ease-in-out infinite;
}

@keyframes pulseGradient {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.login-page::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    animation: movePattern 30s linear infinite;
}

@keyframes movePattern {
    0% { transform: translate(0, 0); }
    100% { transform: translate(60px, 60px); }
}

.login-container {
    width: 100%;
    max-width: 460px;
    padding: 24px;
    z-index: 10;
    animation: loginEntrance 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes loginEntrance {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-box {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(24px);
    border-radius: var(--radius-2xl);
    padding: 48px 40px;
    box-shadow: var(--shadow-2xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.login-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 12px 24px rgba(30, 64, 175, 0.25);
}

.login-icon i {
    font-size: 32px;
    color: var(--white);
}

.login-header h1 {
    font-size: 26px;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 6px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--slate-500);
    font-size: 14px;
    font-weight: 400;
}

.login-form .input-group {
    margin-bottom: 22px;
}

.input-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--slate-400);
    font-size: 16px;
    pointer-events: none;
    transition: var(--transition);
}

.input-wrapper input {
    width: 100%;
    padding: 14px 16px 14px 46px;
    border: 2px solid var(--slate-200);
    border-radius: var(--radius);
    font-size: 15px;
    font-family: inherit;
    background: var(--slate-50);
    transition: var(--transition);
    color: var(--slate-900);
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-400);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.input-wrapper input:focus + i,
.input-wrapper input:focus ~ i {
    color: var(--primary-500);
}

.input-wrapper input::placeholder {
    color: var(--slate-400);
}

.login-form .btn-login {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
    color: var(--white);
    border: none;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    letter-spacing: 0.3px;
    position: relative;
    overflow: hidden;
}

.login-form .btn-login::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    opacity: 0;
    transition: var(--transition);
}

.login-form .btn-login:hover::before {
    opacity: 1;
}

.login-form .btn-login span {
    position: relative;
    z-index: 1;
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    font-size: 13px;
    color: var(--slate-400);
}

/* ============ HEADER ============ */
.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--slate-200);
    z-index: 1000;
    display: flex;
    align-items: center;
    padding: 0 28px;
    box-shadow: var(--shadow-xs);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 18px;
    flex-shrink: 0;
}

.menu-trigger {
    width: 42px;
    height: 42px;
    border-radius: var(--radius);
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--slate-500);
    font-size: 20px;
    transition: var(--transition);
}

.menu-trigger:hover {
    background: var(--slate-100);
    color: var(--primary-600);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.brand-logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    object-fit: contain;
}

.brand-text h2 {
    font-size: 16px;
    font-weight: 700;
    color: var(--slate-900);
    line-height: 1.2;
    letter-spacing: -0.3px;
}

.brand-text span {
    font-size: 11px;
    color: var(--slate-500);
    font-weight: 500;
}

.header-center {
    flex: 1;
    display: flex;
    justify-content: center;
    padding: 0 32px;
}

.search-bar {
    width: 100%;
    max-width: 520px;
    position: relative;
}

.search-bar i {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--slate-400);
    font-size: 16px;
    pointer-events: none;
}

.search-bar input {
    width: 100%;
    padding: 12px 18px 12px 48px;
    background: var(--slate-100);
    border: 2px solid transparent;
    border-radius: var(--radius-full);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
    color: var(--slate-800);
}

.search-bar input:focus {
    outline: none;
    background: var(--white);
    border-color: var(--primary-300);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.08);
}

.search-bar input::placeholder {
    color: var(--slate-400);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.header-action {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-full);
    background: var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--slate-500);
    font-size: 18px;
    transition: var(--transition);
    position: relative;
}

.header-action:hover {
    background: var(--slate-200);
    color: var(--slate-700);
}

.header-action .badge-dot {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 8px;
    height: 8px;
    background: var(--danger);
    border-radius: var(--radius-full);
    border: 2px solid var(--white);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 16px 6px 6px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    background: var(--slate-100);
}

.user-profile:hover {
    background: var(--slate-200);
}

.user-avatar-lg {
    width: 38px;
    height: 38px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
    font-size: 15px;
}

.user-info {
    display: flex;
    flex-direction: column;
}

.user-info .user-name-header {
    font-size: 13px;
    font-weight: 600;
    color: var(--slate-800);
    line-height: 1;
}

.user-info .user-role {
    font-size: 11px;
    color: var(--slate-500);
    text-transform: capitalize;
}

.user-arrow {
    color: var(--slate-400);
    font-size: 12px;
    transition: var(--transition);
}

.user-profile:hover .user-arrow {
    transform: rotate(180deg);
}

/* ============ SIDEBAR ============ */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--white);
    border-right: 1px solid var(--slate-200);
    overflow-y: auto;
    overflow-x: hidden;
    transition: var(--transition-slow);
    z-index: 900;
    display: flex;
    flex-direction: column;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-inner {
    flex: 1;
    padding: 20px 14px;
}

.nav-section {
    margin-bottom: 8px;
}

.nav-section-title {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--slate-400);
    padding: 12px 16px 8px;
    white-space: nowrap;
    overflow: hidden;
}

.sidebar.collapsed .nav-section-title {
    opacity: 0;
    height: 0;
    padding: 0;
    margin: 0;
}

.nav-list {
    list-style: none;
}

.nav-list li {
    margin-bottom: 3px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: var(--radius);
    color: var(--slate-600);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition-fast);
    white-space: nowrap;
    overflow: hidden;
    position: relative;
}

.nav-link i {
    font-size: 20px;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
    transition: var(--transition);
}

.nav-link span {
    opacity: 1;
    transition: var(--transition);
}

.sidebar.collapsed .nav-link span {
    opacity: 0;
    width: 0;
}

.nav-link:hover {
    background: var(--slate-100);
    color: var(--slate-900);
}

.nav-link.active {
    background: var(--primary-50);
    color: var(--primary-700);
    font-weight: 600;
}

.nav-link.active i {
    color: var(--primary-600);
}

.nav-link.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    bottom: 8px;
    width: 3px;
    background: var(--primary-600);
    border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

.nav-divider {
    height: 1px;
    background: var(--slate-200);
    margin: 16px 0;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--slate-200);
}

.sidebar-footer .nav-link {
    color: var(--slate-500);
}

.sidebar-footer .nav-link:hover {
    color: var(--danger);
    background: var(--danger-light);
}

/* ============ MAIN CONTENT ============ */
.main-wrapper {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
    transition: var(--transition-slow);
    background: var(--slate-50);
}

.main-wrapper.expanded {
    margin-left: var(--sidebar-collapsed);
}

.content-area {
    padding: 36px 32px;
    max-width: var(--content-max-width);
}

/* ============ PAGE HEADER ============ */
.page-title-area {
    margin-bottom: 36px;
}

.page-title-area h1 {
    font-size: 30px;
    font-weight: 800;
    color: var(--slate-900);
    letter-spacing: -0.5px;
    margin-bottom: 8px;
}

.breadcrumb-nav {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--slate-500);
    flex-wrap: wrap;
}

.breadcrumb-nav a {
    color: var(--primary-600);
    font-weight: 500;
    transition: var(--transition);
}

.breadcrumb-nav a:hover {
    color: var(--primary-700);
    text-decoration: underline;
}

.breadcrumb-nav i {
    font-size: 10px;
    color: var(--slate-400);
}

/* ============ STATS CARDS ============ */
.stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
    margin-bottom: 36px;
}

.stat-panel {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 26px;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 20px;
    border: 1px solid var(--slate-100);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-panel::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--primary-50);
    transform: translate(40px, -40px);
    transition: var(--transition);
}

.stat-panel:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-100);
}

.stat-panel:hover::after {
    transform: translate(30px, -30px) scale(1.2);
}

.stat-icon-box {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    flex-shrink: 0;
}

.stat-icon-box.primary {
    background: var(--primary-50);
    color: var(--primary-600);
}

.stat-icon-box.success {
    background: var(--success-light);
    color: var(--success);
}

.stat-icon-box.warning {
    background: var(--warning-light);
    color: var(--warning);
}

.stat-icon-box.info {
    background: var(--info-light);
    color: var(--info);
}

.stat-details h3 {
    font-size: 34px;
    font-weight: 800;
    color: var(--slate-900);
    line-height: 1;
    letter-spacing: -1px;
}

.stat-details p {
    font-size: 13px;
    color: var(--slate-500);
    margin-top: 4px;
    font-weight: 500;
}

.stat-trend {
    font-size: 11px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    margin-top: 4px;
}

.stat-trend.up {
    color: var(--success);
}

.stat-trend.down {
    color: var(--danger);
}

/* ============ DOCUMENT CARDS ============ */
.documents-section {
    margin-bottom: 36px;
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 22px;
}

.section-header h2 {
    font-size: 20px;
    font-weight: 700;
    color: var(--slate-900);
}

.section-header .view-all {
    font-size: 13px;
    color: var(--primary-600);
    font-weight: 600;
    transition: var(--transition);
}

.section-header .view-all:hover {
    color: var(--primary-700);
}

.documents-masonry {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 22px;
}

.document-panel {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--slate-100);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.document-panel:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-100);
}

.doc-cover {
    position: relative;
    height: 220px;
    background: var(--slate-100);
    overflow: hidden;
    cursor: pointer;
}

.doc-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.document-panel:hover .doc-cover img {
    transform: scale(1.05);
}

.doc-cover-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 60%);
    opacity: 0;
    transition: var(--transition);
    display: flex;
    align-items: flex-end;
    padding: 16px;
}

.document-panel:hover .doc-cover-overlay {
    opacity: 1;
}

.doc-cover-overlay .btn-quick-view {
    padding: 8px 16px;
    background: var(--white);
    color: var(--slate-800);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
}

.doc-type-tag {
    position: absolute;
    top: 14px;
    left: 14px;
    padding: 6px 14px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    color: var(--primary-700);
    letter-spacing: 0.3px;
}

.doc-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.doc-content h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--slate-900);
    margin-bottom: 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.doc-content .doc-author-name {
    font-size: 13px;
    color: var(--slate-600);
    margin-bottom: 12px;
    font-weight: 500;
}

.doc-metadata {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    font-size: 12px;
    color: var(--slate-400);
    margin-bottom: 16px;
}

.doc-metadata span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.doc-metadata i {
    font-size: 13px;
}

.doc-actions-row {
    display: flex;
    gap: 8px;
    margin-top: auto;
}

/* ============ BUTTONS ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-600);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    background: var(--primary-700);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

.btn-secondary {
    background: var(--slate-100);
    color: var(--slate-700);
}

.btn-secondary:hover {
    background: var(--slate-200);
    color: var(--slate-900);
}

.btn-success {
    background: var(--success);
    color: var(--white);
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.25);
}

.btn-success:hover {
    background: #059669;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.35);
}

.btn-danger {
    background: var(--danger);
    color: var(--white);
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-outline-primary {
    background: transparent;
    border: 2px solid var(--primary-300);
    color: var(--primary-600);
}

.btn-outline-primary:hover {
    background: var(--primary-50);
    border-color: var(--primary-500);
}

.btn-sm {
    padding: 6px 14px;
    font-size: 12px;
    border-radius: var(--radius-sm);
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-icon-only {
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: var(--radius-full);
}

.btn-group {
    display: flex;
    gap: 6px;
}

/* ============ TABLES ============ */
.table-wrapper {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    border: 1px solid var(--slate-100);
}

.table-toolbar {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--slate-200);
    flex-wrap: wrap;
    gap: 12px;
}

.table-toolbar h3 {
    font-size: 18px;
    font-weight: 700;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead th {
    padding: 14px 20px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: var(--slate-500);
    background: var(--slate-50);
    border-bottom: 2px solid var(--slate-200);
    text-align: left;
    white-space: nowrap;
}

.data-table tbody td {
    padding: 16px 20px;
    border-bottom: 1px solid var(--slate-100);
    font-size: 14px;
    vertical-align: middle;
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: var(--slate-50);
}

.data-table .cell-title {
    font-weight: 600;
    color: var(--slate-900);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============ BADGES ============ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 5px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.badge-primary { background: var(--primary-50); color: var(--primary-700); }
.badge-success { background: var(--success-light); color: var(--success); }
.badge-warning { background: var(--warning-light); color: #92400e; }
.badge-danger { background: var(--danger-light); color: var(--danger); }
.badge-neutral { background: var(--slate-100); color: var(--slate-600); }

/* ============ FORMS ============ */
.form-panel {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--slate-100);
    max-width: 900px;
}

.form-panel h2 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 28px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--slate-100);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.form-field {
    margin-bottom: 22px;
}

.form-field.full-width {
    grid-column: 1 / -1;
}

.form-field label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--slate-700);
    margin-bottom: 8px;
}

.form-field label .required {
    color: var(--danger);
}

.form-field input,
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--slate-200);
    border-radius: var(--radius);
    font-size: 14px;
    font-family: inherit;
    background: var(--slate-50);
    transition: var(--transition);
    color: var(--slate-900);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--primary-400);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.08);
}

.form-field textarea {
    min-height: 140px;
    resize: vertical;
}

/* File Upload */
.upload-zone {
    border: 2px dashed var(--slate-300);
    border-radius: var(--radius-lg);
    padding: 48px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--slate-50);
}

.upload-zone:hover,
.upload-zone.drag-over {
    border-color: var(--primary-400);
    background: var(--primary-50);
}

.upload-zone i {
    font-size: 48px;
    color: var(--slate-400);
    margin-bottom: 16px;
    display: block;
}

.upload-zone h4 {
    font-size: 16px;
    color: var(--slate-700);
    margin-bottom: 4px;
}

.upload-zone p {
    font-size: 13px;
    color: var(--slate-500);
}

/* ============ MODALS ============ */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: backdropIn 0.2s ease-out;
}

@keyframes backdropIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-container {
    background: var(--white);
    border-radius: var(--radius-2xl);
    width: 90%;
    max-width: 600px;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-2xl);
    animation: modalPop 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
    from {
        opacity: 0;
        transform: scale(0.92) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.modal-head {
    padding: 24px 28px;
    border-bottom: 1px solid var(--slate-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    background: var(--white);
    z-index: 10;
    border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
}

.modal-head h3 {
    font-size: 18px;
    font-weight: 700;
}

.modal-dismiss {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--slate-500);
    transition: var(--transition);
}

.modal-dismiss:hover {
    background: var(--danger);
    color: var(--white);
}

.modal-body {
    padding: 28px;
}

.modal-foot {
    padding: 20px 28px;
    border-top: 1px solid var(--slate-200);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    position: sticky;
    bottom: 0;
    background: var(--white);
}

/* ============ ALERTS ============ */
.alert {
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 22px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    font-weight: 500;
    animation: alertSlide 0.4s ease-out;
}

@keyframes alertSlide {
    from {
        opacity: 0;
        transform: translateY(-12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert i {
    font-size: 20px;
    flex-shrink: 0;
    margin-top: 1px;
}

.alert-success {
    background: var(--success-light);
    color: #065f46;
    border-left: 4px solid var(--success);
}

.alert-error {
    background: var(--danger-light);
    color: #991b1b;
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: var(--warning-light);
    color: #92400e;
    border-left: 4px solid var(--warning);
}

.alert-info {
    background: var(--info-light);
    color: #1e40af;
    border-left: 4px solid var(--info);
}

/* ============ EMPTY STATE ============ */
.empty-state {
    text-align: center;
    padding: 80px 20px;
}

.empty-state .empty-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 24px;
    background: var(--slate-100);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.empty-state .empty-icon i {
    font-size: 40px;
    color: var(--slate-400);
}

.empty-state h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--slate-800);
    margin-bottom: 8px;
}

.empty-state p {
    color: var(--slate-500);
    font-size: 14px;
    max-width: 400px;
    margin: 0 auto 24px;
}

/* ============ UTILITIES ============ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.w-full { width: 100%; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1200px) {
    .header-center {
        padding: 0 20px;
    }
    
    .search-bar {
        max-width: 360px;
    }
}

@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        position: fixed;
        z-index: 1500;
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
        box-shadow: var(--shadow-2xl);
    }
    
    .main-wrapper {
        margin-left: 0;
    }
    
    .main-wrapper.expanded {
        margin-left: 0;
    }
    
    .header-center {
        display: none;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .content-area {
        padding: 20px 16px;
    }
    
    .stats-row {
        grid-template-columns: 1fr;
        gap: 14px;
    }
    
    .documents-masonry {
        grid-template-columns: 1fr;
    }
    
    .page-title-area h1 {
        font-size: 24px;
    }
    
    .login-box {
        padding: 32px 24px;
    }
    
    .user-info {
        display: none;
    }
    
    .brand-text span {
        display: none;
    }
    
    .data-table thead {
        display: none;
    }
    
    .data-table tbody td {
        display: block;
        padding: 10px 16px;
    }
    
    .data-table tbody td::before {
        content: attr(data-label);
        font-weight: 700;
        display: block;
        font-size: 11px;
        color: var(--slate-500);
        margin-bottom: 4px;
    }
    
    .form-panel {
        padding: 24px;
    }
}

@media (max-width: 480px) {
    :root {
        --header-height: 60px;
    }
    
    .brand-text h2 {
        font-size: 14px;
    }
    
    .stat-panel {
        padding: 18px;
    }
    
    .stat-details h3 {
        font-size: 26px;
    }
    
    .doc-cover {
        height: 180px;
    }
    
    .modal-container {
        width: 95%;
    }
}

/* Mobile Sidebar Overlay */
.mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 1400;
}

.mobile-overlay.show {
    display: block;
}

/* Print Styles */
@media print {
    .main-header,
    .sidebar,
    .mobile-overlay {
        display: none !important;
    }
    
    .main-wrapper {
        margin-left: 0 !important;
        margin-top: 0 !important;
    }
}