/* ============================================================
   MESA DE ENTRADAS v3 — Modern Design System
   Premium dark theme with enhanced UX, performance & accessibility
   ============================================================ */

/* === CSS Variables - Enhanced Palette === */
:root {
    /* Core palette - Modern & Professional */
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f2e;
    --bg-card: rgba(26, 31, 46, 0.8);
    --bg-card-solid: #222d42;
    --bg-input: rgba(255,255,255,0.05);
    --bg-hover: rgba(255,255,255,0.08);

    /* Accent - Vibrant & Modern */
    --accent: #06b6d4;
    --accent-light: #22d3ee;
    --accent-dark: #0891b2;
    --accent-glow: rgba(6, 182, 212, 0.2);
    --accent-gradient: linear-gradient(135deg, #06b6d4 0%, #0ea5e9 100%);

    /* Secondary accent */
    --accent-alt: #10b981;
    --accent-alt-gradient: linear-gradient(135deg, #10b981 0%, #34d399 100%);

    /* Status colors */
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.2);
    --warning: #f59e0b;
    --warning-glow: rgba(245, 158, 11, 0.2);
    --danger: #ef4444;
    --danger-glow: rgba(239, 68, 68, 0.2);
    --info: #3b82f6;
    --info-glow: rgba(59, 130, 246, 0.2);

    /* Text - Better contrast */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-accent: #06b6d4;

    /* Border */
    --border: rgba(255,255,255,0.05);
    --border-accent: rgba(6, 182, 212, 0.3);
    --border-light: rgba(255,255,255,0.08);

    /* Glass effect */
    --glass-bg: rgba(255,255,255,0.02);
    --glass-border: rgba(255,255,255,0.1);
    --glass-shadow: 0 10px 40px rgba(0,0,0,0.4);

    /* Sizing */
    --radius-xs: 4px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-2xl: 24px;

    /* Typography - Modern stack */
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', 'Monaco', 'Courier New', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;

    /* Transitions - Smooth & Natural */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --transition-fast: 150ms var(--ease-out);
    --transition-base: 250ms var(--ease-out);
    --transition-slow: 350ms var(--ease-out);

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0,0,0,0.1);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.15);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.2);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.25);
    --shadow-xl: 0 12px 48px rgba(0,0,0,0.3);
}

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

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    letter-spacing: 0.3px;
}

svg {
    display: block;
    flex-shrink: 0;
}

svg:not([width]):not([height]) {
    width: 20px;
    height: 20px;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-light);
}

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

button {
    font-family: var(--font-main);
}

::selection {
    background: var(--accent);
    color: var(--bg-primary);
}

/* === Scrollbar Styling === */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
    transition: background var(--transition-fast);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* ============================================================
   PARTICLES & BACKGROUND
   ============================================================ */

#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Floating Orbs - Optimized for performance */
.orb {
    position: fixed;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.12;
    z-index: 0;
    pointer-events: none;
    animation: orbFloat 25s infinite ease-in-out;
    will-change: transform;
}

.orb-1 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    top: -50px;
    left: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 350px;
    height: 350px;
    background: #6366f1;
    bottom: -50px;
    right: -100px;
    animation-delay: -8s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-alt);
    top: 40%;
    left: 50%;
    animation-delay: -16s;
}

@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(25px, -30px) scale(1.02); }
    50% { transform: translate(-15px, 20px) scale(0.98); }
    75% { transform: translate(35px, 15px) scale(1.01); }
}

/* ============================================================
   LOGIN PAGE - MODERN
   ============================================================ */

.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 16px;
}

.login-wrapper {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 420px;
    animation: fadeSlideUp 0.6s var(--ease-out) both;
}

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

.login-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px) saturate(150%);
    -webkit-backdrop-filter: blur(20px) saturate(150%);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-2xl);
    padding: 48px 40px;
    box-shadow: var(--glass-shadow), 0 0 60px rgba(6, 182, 212, 0.05);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
}

/* Login Header - Enhanced */
.login-header {
    text-align: center;
    margin-bottom: 36px;
}

.logo-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    border-radius: var(--radius-lg);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 20px var(--accent-glow);
    animation: logoPulse 3s infinite ease-in-out;
}

.logo-icon svg {
    width: 28px;
    height: 28px;
    stroke: white;
    stroke-width: 1.5;
}

@keyframes logoPulse {
    0%, 100% { box-shadow: 0 4px 20px var(--accent-glow); }
    50% { box-shadow: 0 4px 40px var(--accent-glow), 0 0 60px rgba(6, 182, 212, 0.1); }
}

.login-title {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.login-subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 400;
    letter-spacing: 0.2px;
}

/* Login Form */
.login-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    pointer-events: none;
    transition: color var(--transition-fast);
    z-index: 2;
}

.input-icon svg {
    width: 100%;
    height: 100%;
}

.input-group input {
    width: 100%;
    padding: 12px 14px 12px 44px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-main);
    transition: all var(--transition-base);
    outline: none;
}

.input-group input::placeholder {
    color: var(--text-muted);
}

.input-group input:focus {
    border-color: var(--accent);
    background: rgba(6, 182, 212, 0.03);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.input-group:has(input:focus) .input-icon {
    color: var(--accent);
}

.input-line {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-gradient);
    transition: all var(--transition-base);
    transform: translateX(-50%);
    border-radius: 2px;
}

.input-group input:focus ~ .input-line {
    width: 100%;
}

.toggle-pass {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    width: 20px;
    height: 20px;
    padding: 4px;
    z-index: 2;
    transition: color var(--transition-fast);
    border-radius: var(--radius-sm);
}

.toggle-pass:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.toggle-pass:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.toggle-pass svg {
    width: 100%;
    height: 100%;
}

/* Login Error - Improved */
.login-error {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--danger-glow);
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: var(--radius-md);
    color: #fca5a5;
    font-size: 0.875rem;
    animation: shake 0.4s var(--ease-out);
    font-weight: 500;
}

.login-error svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-6px); }
    75% { transform: translateX(6px); }
}

/* Login Button - Enhanced */
.btn-login {
    position: relative;
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-main);
    cursor: pointer;
    overflow: hidden;
    transition: all var(--transition-base);
    margin-top: 8px;
    box-shadow: 0 4px 16px var(--accent-glow);
}

.btn-login::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.btn-login:hover::before {
    left: 100%;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px var(--accent-glow);
}

.btn-login:active {
    transform: translateY(0);
}

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

.btn-login.loading {
    opacity: 0.8;
}

.btn-login.loading .btn-login-text {
    opacity: 0;
}

.btn-login.loading .btn-login-loader {
    opacity: 1;
}

.btn-login-text {
    transition: opacity var(--transition-fast);
}

.btn-login-loader {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    opacity: 0;
    transition: opacity var(--transition-fast);
}

@keyframes spin {
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Login Footer */
.login-footer {
    text-align: center;
    margin-top: 28px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.2px;
}

/* ============================================================
   DASHBOARD PAGE
   ============================================================ */

.dashboard-page {
    display: flex;
    min-height: 100vh;
}

/* === Sidebar - Enhanced === */
.sidebar {
    width: 260px;
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
    transition: transform var(--transition-base);
    box-shadow: 2px 0 16px rgba(0,0,0,0.1);
}

.sidebar-brand {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-brand-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 2px 8px var(--accent-glow);
}

.sidebar-brand-icon svg {
    width: 22px;
    height: 22px;
    stroke: white;
    stroke-width: 1.5;
}

.sidebar-brand-text h2 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.sidebar-brand-text span {
    font-size: 0.65rem;
    color: var(--text-muted);
    font-weight: 500;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.nav-label {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    padding: 12px 12px 6px;
    margin-top: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: 1px solid transparent;
    text-decoration: none;
    position: relative;
}

.nav-item svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.nav-item:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-item:hover svg {
    opacity: 1;
}

.nav-item:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -1px;
}

.nav-item.active {
    background: rgba(6, 182, 212, 0.1);
    color: var(--accent);
    border-color: var(--border-accent);
}

.nav-item.active svg {
    opacity: 1;
    color: var(--accent);
}

.nav-badge {
    margin-left: auto;
    background: var(--danger);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
    flex-shrink: 0;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-details span {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-details small {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-weight: 400;
}

.btn-logout {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.btn-logout:hover {
    color: var(--danger);
    background: var(--danger-glow);
}

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

.btn-logout svg {
    width: 18px;
    height: 18px;
}

/* === Main Content Area === */
.main-area {
    flex: 1;
    margin-left: 260px;
    min-height: 100vh;
    position: relative;
}

/* Top bar - Modern */
.topbar {
    position: sticky;
    top: 0;
    z-index: 50;
    padding: 16px 32px;
    background: rgba(15, 20, 25, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    box-shadow: 0 1px 8px rgba(0,0,0,0.1);
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-mobile-menu {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.btn-mobile-menu:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.btn-mobile-menu:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.btn-mobile-menu svg {
    width: 24px;
    height: 24px;
}

.topbar-title h2 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.topbar-title p {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 2px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.topbar-clock {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    padding: 8px 14px;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    font-weight: 500;
    letter-spacing: 0.5px;
}

/* Page content */
.page-content {
    padding: 32px;
    animation: fadeIn 0.4s var(--ease-out);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === Stats Cards Row === */
.stats-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
}

.stat-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0,0,0,0.15);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-fast);
}

.stat-card:hover::before {
    opacity: 1;
}

.stat-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}

.stat-icon svg {
    width: 22px;
    height: 22px;
}

.stat-icon.green {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.stat-icon.blue {
    background: rgba(59, 130, 246, 0.15);
    color: var(--info);
}

.stat-icon.yellow {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.stat-icon.red {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.stat-icon.cyan {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent);
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 4px;
    letter-spacing: -1px;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================================
   SECTIONS / VIEWS
   ============================================================ */

.view-section {
    display: none;
}

.view-section.active {
    display: block;
    animation: fadeIn 0.4s var(--ease-out);
}

/* ============================================================
   FORMS - MODERN
   ============================================================ */

.form-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.form-card-header {
    padding: 28px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.form-card-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    letter-spacing: -0.2px;
}

.form-card-header h3 .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: dotPulse 2s infinite;
}

@keyframes dotPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.form-card-body {
    padding: 28px;
}

.form-section-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-section-title::before {
    content: '';
    width: 3px;
    height: 16px;
    border-radius: 2px;
    background: var(--accent-gradient);
}

.form-grid {
    display: grid;
    gap: 20px;
    margin-bottom: 28px;
}

.form-grid.cols-1 { grid-template-columns: 1fr; }
.form-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.form-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.form-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

.form-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-field label {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.form-field input,
.form-field textarea,
.form-field select {
    width: 100%;
    padding: 11px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: var(--font-main);
    transition: all var(--transition-base);
    outline: none;
}

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

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
    border-color: var(--accent);
    background: rgba(6, 182, 212, 0.03);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-field textarea {
    resize: vertical;
    min-height: 80px;
    font-family: var(--font-main);
}

.form-field select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

/* Checkbox */
.checkbox-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 20px 0;
}

.checkbox-row input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--accent);
    cursor: pointer;
}

.checkbox-row label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    text-transform: none;
    letter-spacing: 0;
    margin: 0;
}

/* Form Actions */
.form-actions-bar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

/* ============================================================
   BUTTONS - UNIFIED
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 600;
    font-family: var(--font-main);
    cursor: pointer;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    text-decoration: none;
}

.btn svg {
    width: 18px;
    height: 18px;
}

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

/* Primary Button */
.btn-primary {
    background: var(--accent-gradient);
    color: white;
    border: none;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

/* Secondary Button */
.btn-secondary {
    background: var(--bg-input);
    color: var(--text-secondary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--glass-border);
}

/* Danger Button */
.btn-danger {
    background: var(--danger-glow);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.25);
    border-color: rgba(239, 68, 68, 0.5);
}

/* Icon Button */
.btn-icon {
    padding: 10px;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--glass-border);
}

.btn-icon.danger:hover {
    color: #fca5a5;
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.12);
}

.btn-icon svg {
    width: 18px;
    height: 18px;
}

.record-actions {
    display: flex;
    gap: 6px;
    align-items: center;
}

/* ============================================================
   DATA TABLE - IMPROVED
   ============================================================ */

.table-card {
    background: var(--bg-card);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.table-toolbar {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.table-search {
    position: relative;
    flex: 1;
    max-width: 350px;
}

.table-search input {
    width: 100%;
    padding: 10px 14px 10px 40px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.85rem;
    font-family: var(--font-main);
    outline: none;
    transition: all var(--transition-base);
}

.table-search input::placeholder {
    color: var(--text-muted);
}

.table-search input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.table-search svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    color: var(--text-muted);
}

.table-responsive {
    overflow-x: auto;
}

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

th, td {
    padding: 14px 16px;
    text-align: left;
    font-size: 0.85rem;
    white-space: nowrap;
    border-bottom: 1px solid var(--border);
}

th {
    background: rgba(255,255,255,0.02);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.72rem;
}

tr {
    transition: background var(--transition-fast);
}

tr:hover {
    background: var(--bg-hover);
}

td {
    color: var(--text-secondary);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.badge-green {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge-blue {
    background: rgba(59, 130, 246, 0.15);
    color: var(--info);
}

.badge-yellow {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge-red {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.table-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.table-empty svg {
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    opacity: 0.3;
}

/* ============================================================
   MODALS - MODERN
   ============================================================ */

.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.3s var(--ease-out);
}

.modal {
    background: var(--bg-card-solid);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideUp 0.4s var(--ease-spring);
    box-shadow: var(--glass-shadow);
}

@keyframes modalSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-header {
    padding: 24px 28px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.2px;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.modal-close:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.modal-close:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: -2px;
}

.modal-close svg {
    width: 20px;
    height: 20px;
}

.modal-body {
    padding: 0 28px 28px;
}

.modal-footer {
    padding: 16px 28px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Success Modal */
.success-modal-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    border-radius: 50%;
    background: rgba(16, 185, 129, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: successPop 0.6s var(--ease-spring);
}

.success-modal-icon svg {
    width: 36px;
    height: 36px;
    color: var(--success);
}

@keyframes successPop {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

/* ============================================================
   ALERTS & TOASTS
   ============================================================ */

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    background: var(--bg-card-solid);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 300px;
    box-shadow: var(--glass-shadow);
    animation: toastIn 0.4s var(--ease-spring);
    transition: all var(--transition-base);
    pointer-events: auto;
}

.toast.removing {
    animation: toastOut 0.3s var(--ease-out) forwards;
}

.toast svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.toast-success {
    border-left: 3px solid var(--success);
}

.toast-success svg {
    color: var(--success);
}

.toast-error {
    border-left: 3px solid var(--danger);
}

.toast-error svg {
    color: var(--danger);
}

.toast-message {
    flex: 1;
    font-size: 0.88rem;
    color: var(--text-primary);
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-xs);
    transition: all var(--transition-fast);
}

.toast-close:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}

.toast-close svg {
    width: 16px;
    height: 16px;
}

@keyframes toastIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes toastOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

/* ============================================================
   LOADING STATES
   ============================================================ */

.loading-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-primary);
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    transition: opacity 0.4s, visibility 0.4s;
}

.loading-overlay.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============================================================
   RESPONSIVE DESIGN
   ============================================================ */

@media (max-width: 1024px) {
    .stats-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-grid.cols-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-grid.cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-area {
        margin-left: 0;
    }

    .btn-mobile-menu {
        display: flex;
    }

    .stats-row {
        grid-template-columns: 1fr;
    }

    .form-grid.cols-2,
    .form-grid.cols-3,
    .form-grid.cols-4 {
        grid-template-columns: 1fr;
    }

    .page-content {
        padding: 20px;
    }

    .topbar {
        padding: 12px 20px;
    }

    .table-toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .table-search {
        max-width: 100%;
    }

    .login-wrapper {
        max-width: calc(100% - 40px);
    }

    .login-card {
        padding: 40px 24px;
    }
}

@media (max-width: 480px) {
    .login-title {
        font-size: 1.5rem;
    }

    .login-card {
        padding: 32px 20px;
    }

    .page-content {
        padding: 16px;
    }

    .topbar {
        padding: 12px 16px;
        flex-direction: column;
        align-items: flex-start;
    }

    .topbar-actions {
        width: 100%;
        justify-content: space-between;
    }

    .stat-value {
        font-size: 1.5rem;
    }

    .form-grid {
        gap: 16px;
    }

    .btn {
        padding: 10px 16px;
        font-size: 0.85rem;
    }

    .toast {
        min-width: 280px;
    }
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 99;
    backdrop-filter: blur(2px);
}

.sidebar-overlay.active {
    display: block;
}

/* ============================================================
   CONFIGURATION SECTION
   ============================================================ */

.config-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.config-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-base);
}

.config-card:hover {
    border-color: var(--border-accent);
    transform: translateY(-2px);
}

.config-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.2px;
}

.config-card h4 svg {
    width: 20px;
    height: 20px;
    color: var(--accent);
}

@media (max-width: 768px) {
    .config-grid {
        grid-template-columns: 1fr;
    }
}

/* ============================================================
   PDF FIELD CONFIGURATOR
   ============================================================ */

.pdf-config-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.pdf-config-tabs {
    display: flex;
    gap: 4px;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    padding: 3px;
    border: 1px solid var(--border);
}

.pdf-tab-btn {
    padding: 8px 20px;
    border: none;
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 600;
    font-family: var(--font-main);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.pdf-tab-btn.active {
    background: var(--accent);
    color: white;
}

.pdf-tab-btn:hover:not(.active) {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.pdf-config-layout {
    display: flex;
    gap: 20px;
    height: calc(100vh - 240px);
    min-height: 500px;
}

.pdf-config-sidebar {
    width: 340px;
    min-width: 300px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-right: 8px;
}

.pdf-config-sidebar::-webkit-scrollbar {
    width: 4px;
}

.pdf-config-sidebar::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 2px;
}

.pdf-field-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    cursor: pointer;
    transition: all var(--transition-base);
    border-left: 3px solid var(--text-muted);
}

.pdf-field-card:hover {
    border-color: var(--glass-border);
    background: var(--bg-hover);
}

.pdf-field-card.active {
    border-left-color: var(--accent);
    border-color: var(--border-accent);
    background: rgba(6, 182, 212, 0.05);
}

.pdf-field-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.pdf-field-card-name {
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pdf-field-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.pdf-field-card-page {
    font-size: 0.65rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pdf-config-preview {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.pdf-preview-a4 {
    position: relative;
    width: auto;
    height: 100%;
    max-width: 100%;
    max-height: 100%;
    aspect-ratio: 215.9 / 355.6;
    background-color: white;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    overflow: hidden;
}

/* Field colors palette */
.pdf-field-color-0 { background: rgba(16, 185, 129, 0.3); border: 1px solid rgba(16, 185, 129, 0.7); color: #065f46; }
.pdf-field-color-1 { background: rgba(59, 130, 246, 0.3); border: 1px solid rgba(59, 130, 246, 0.7); color: #1e3a5f; }
.pdf-field-color-2 { background: rgba(245, 158, 11, 0.3); border: 1px solid rgba(245, 158, 11, 0.7); color: #78350f; }
.pdf-field-color-3 { background: rgba(239, 68, 68, 0.3); border: 1px solid rgba(239, 68, 68, 0.7); color: #7f1d1d; }
.pdf-field-color-4 { background: rgba(168, 85, 247, 0.3); border: 1px solid rgba(168, 85, 247, 0.7); color: #4c1d95; }
.pdf-field-color-5 { background: rgba(236, 72, 153, 0.3); border: 1px solid rgba(236, 72, 153, 0.7); color: #831843; }
.pdf-field-color-6 { background: rgba(20, 184, 166, 0.3); border: 1px solid rgba(20, 184, 166, 0.7); color: #134e4a; }
.pdf-field-color-7 { background: rgba(251, 146, 60, 0.3); border: 1px solid rgba(251, 146, 60, 0.7); color: #7c2d12; }

.pdf-dot-color-0 { background: #10b981; }
.pdf-dot-color-1 { background: #3b82f6; }
.pdf-dot-color-2 { background: #f59e0b; }
.pdf-dot-color-3 { background: #ef4444; }
.pdf-dot-color-4 { background: #a855f7; }
.pdf-dot-color-5 { background: #ec4899; }
.pdf-dot-color-6 { background: #14b8a6; }
.pdf-dot-color-7 { background: #fb923c; }

@media (max-width: 1024px) {
    .pdf-config-layout {
        flex-direction: column;
        height: auto;
    }

    .pdf-config-sidebar {
        width: 100%;
        max-height: 300px;
    }

    .pdf-config-preview {
        min-height: 400px;
    }
}

@media (max-width: 768px) {
    .pdf-config-toolbar {
        flex-direction: column;
        align-items: stretch;
    }
}

/* ============================================================
   UTILITIES
   ============================================================ */

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Performance: will-change for frequently animated elements */
.btn-login,
.nav-item,
.stat-card,
.btn {
    will-change: transform, box-shadow;
}