:root {
    /* Cores principais */
    --bg-main: #0a0a0a;
    --bg-secondary: #161616;
    --bg-tertiary: #1e1e1e;
    --bg-card: #1a1a1a;
    --accent: #a49dc6;
    --accent-hover: #b8afd4;
    --accent-dark: #8b83a8;
    
    /* Cores de texto */
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #6b6b6b;
    
    /* Cores de status */
    --success: #4ade80;
    --error: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    /* Sombras e efeitos */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 12px 24px rgba(0, 0, 0, 0.6);
    
    /* Blur */
    --blur-sm: 8px;
    --blur-md: 16px;
    --blur-lg: 24px;
    
    /* Transições */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Light Theme */
body.light-theme {
    --bg-main: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-tertiary: #e5e5e5;
    --bg-card: #fafafa;
    --text-primary: #1a1a1a;
    --text-secondary: #4a4a4a;
    --text-muted: #9a9a9a;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Reset e Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-normal);
}

/* Scrollbar Custom */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 5px;
}

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

/* ============================================
   LANDING PAGE - HERO SECTION
============================================ */

.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--bg-main) 0%, var(--bg-secondary) 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(164, 157, 198, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(164, 157, 198, 0.1) 0%, transparent 50%);
    animation: heroFloat 20s ease-in-out infinite;
}

@keyframes heroFloat {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, 20px); }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 2rem;
    max-width: 1200px;
}

.hero-title {
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 900;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: clamp(1rem, 3vw, 1.5rem);
    color: var(--text-secondary);
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease;
}

.hero-cta {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1.2s ease;
}

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

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 4rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.feature-card {
    background: var(--bg-card);
    backdrop-filter: blur(var(--blur-md));
    border: 1px solid rgba(164, 157, 198, 0.2);
    border-radius: 16px;
    padding: 2rem;
    transition: all var(--transition-normal);
    animation: fadeIn 0.6s ease backwards;
}

.feature-card:nth-child(1) { animation-delay: 0.1s; }
.feature-card:nth-child(2) { animation-delay: 0.2s; }
.feature-card:nth-child(3) { animation-delay: 0.3s; }

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(164, 157, 198, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ============================================
   BOTÕES
============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-normal);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(164, 157, 198, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(164, 157, 198, 0.6);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 2px solid var(--accent);
}

.btn-secondary:hover {
    background: var(--accent);
    color: white;
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--error);
    color: white;
    box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(239, 68, 68, 0.5);
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 4px 16px rgba(74, 222, 128, 0.3);
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ============================================
   CARDS E CONTAINERS
============================================ */

.card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(164, 157, 198, 0.1);
    transition: all var(--transition-normal);
}

.card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--accent);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

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

/* Glass Effect */
.glass {
    background: rgba(26, 26, 26, 0.7);
    backdrop-filter: blur(var(--blur-lg));
    border: 1px solid rgba(164, 157, 198, 0.2);
}

/* ============================================
   FORMS
============================================ */

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--bg-secondary);
    border: 2px solid rgba(164, 157, 198, 0.2);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-normal);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(164, 157, 198, 0.1);
}

.form-control::placeholder {
    color: var(--text-muted);
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
    font-family: 'Fira Code', monospace;
}

/* ============================================
   MODAL CUSTOMIZADO
============================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(var(--blur-sm));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal {
    background: var(--bg-card);
    border: 2px solid var(--accent);
    border-radius: 20px;
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal {
    transform: scale(1);
    animation: modalBounce 0.5s ease;
}

@keyframes modalBounce {
    0% { transform: scale(0.8); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--error);
}

.modal-body {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.modal-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* ============================================
   NOTIFICATIONS
============================================ */

.notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.notification {
    min-width: 300px;
    background: var(--bg-card);
    backdrop-filter: blur(var(--blur-md));
    border-left: 4px solid var(--accent);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: slideInRight 0.4s ease;
}

@keyframes slideInRight {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.notification.success { border-left-color: var(--success); }
.notification.error { border-left-color: var(--error); }
.notification.warning { border-left-color: var(--warning); }
.notification.info { border-left-color: var(--info); }

.notification-icon {
    font-size: 1.5rem;
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.notification-message {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.notification-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.2rem;
    transition: color var(--transition-fast);
}

.notification-close:hover {
    color: var(--error);
}

/* ============================================
   LOADING SPINNER
============================================ */

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bg-secondary);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(var(--blur-sm));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 1rem;
    z-index: 9998;
}

.loading-text {
    color: var(--text-primary);
    font-weight: 600;
}

/* ============================================
   NAVBAR
============================================ */

.navbar {
    background: var(--bg-card);
    backdrop-filter: blur(var(--blur-md));
    border-bottom: 1px solid rgba(164, 157, 198, 0.2);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent) 0%, var(--text-primary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

.navbar-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.navbar-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.navbar-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition-normal);
}

.navbar-link:hover {
    color: var(--accent);
}

.navbar-link:hover::after {
    width: 100%;
}

/* Theme Toggle */
.theme-toggle {
    width: 60px;
    height: 30px;
    background: var(--bg-secondary);
    border: 2px solid var(--accent);
    border-radius: 15px;
    position: relative;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.theme-toggle-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 22px;
    height: 22px;
    background: var(--accent);
    border-radius: 50%;
    transition: transform var(--transition-normal);
}

body.light-theme .theme-toggle-slider {
    transform: translateX(30px);
}

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

@media (max-width: 768px) {
    .navbar-menu {
        flex-direction: column;
        gap: 1rem;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .modal {
        width: 95%;
        padding: 1.5rem;
    }
}

/* ============================================
   UTILITY CLASSES
============================================ */

.text-center { text-align: center; }
.text-accent { color: var(--accent); }
.text-muted { color: var(--text-muted); }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.flex { display: flex; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.hidden { display: none; }