:root {
    --color-bg: #0a0a0f;
    --color-bg-elevated: #12121a;
    --color-bg-card: #1a1a24;
    --color-border: rgba(255, 255, 255, 0.08);
    --color-text: #ffffff;
    --color-text-muted: #8a8a9a;
    --color-text-dim: #5a5a6a;
    --color-primary: #6366f1;
    --color-primary-hover: #818cf8;
    --color-primary-glow: rgba(99, 102, 241, 0.3);
    --color-accent: #06b6d4;
    --color-success: #10b981;
    --color-danger: #ef4444;
    --font-main: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-glow: 0 0 60px var(--color-primary-glow);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@media (max-width: 768px) {
    body {
        font-size: 16px;
    }
    
    * {
        -webkit-tap-highlight-color: rgba(99, 102, 241, 0.2);
    }
    
    .btn {
        min-height: 44px;
        touch-action: manipulation;
    }
    
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    input,
    select,
    textarea {
        font-size: 16px;
    }
    
    @supports (-webkit-touch-callout: none) {
        input,
        select,
        textarea {
            font-size: 16px;
        }
    }
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1rem 2rem;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--color-text);
    font-weight: 600;
    font-size: 1.25rem;
}

.logo-icon {
    color: var(--color-primary);
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-link {
    color: var(--color-text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--color-text);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    font-family: var(--font-main);
    font-weight: 500;
    font-size: 0.9375rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.btn-outline {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-outline:hover {
    background: var(--color-bg-card);
    border-color: var(--color-text-muted);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.05);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

.btn-social {
    width: 100%;
    background: var(--color-bg-card);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    padding: 0.75rem;
}

.btn-social:hover {
    background: var(--color-bg-elevated);
    border-color: var(--color-text-muted);
}

.btn-arrow {
    transition: transform 0.3s ease;
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

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

.btn.loading .btn-loader {
    display: block;
}

.btn-loader {
    display: none;
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: currentColor;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.main-content {
    min-height: 100vh;
    padding-top: 80px;
}

.hero {
    position: relative;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.5;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary);
    top: -200px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--color-accent);
    bottom: -100px;
    left: -50px;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
}

.hero-tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-primary-hover);
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease-out;
}

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.6s ease-out 0.1s both;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

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

.features {
    padding: 6rem 2rem;
    background: var(--color-bg-elevated);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2rem;
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

@media (max-width: 768px) {
    .feature-card {
        padding: 1.5rem;
        border-radius: var(--radius-md);
    }
    
    .feature-card:hover {
        transform: none;
    }
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.auth-section {
    position: relative;
    min-height: calc(100vh - 80px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
}

@media (max-width: 768px) {
    .auth-section {
        padding: 2rem 1rem;
        min-height: calc(100vh - 70px);
    }
    
    .auth-container {
        width: 100%;
    }
    
    .btn-social {
        padding: 0.875rem;
        font-size: 0.9rem;
    }
    
    .btn-social svg {
        width: 18px;
        height: 18px;
    }
}

.auth-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.auth-container {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 420px;
}

.auth-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    animation: fadeInUp 0.5s ease-out;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--color-text-muted);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.form-group input {
    padding: 0.875rem 1rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

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

.input-hint {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

.error-message {
    color: var(--color-danger);
    font-size: 0.875rem;
    text-align: center;
    min-height: 1.25rem;
}

.auth-divider {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin: 1.5rem 0;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

.auth-divider span {
    font-size: 0.875rem;
    color: var(--color-text-dim);
}

.auth-footer {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.9375rem;
}

.auth-footer a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
}

.auth-footer a:hover {
    color: var(--color-primary-hover);
}

.dashboard-section {
    position: relative;
    min-height: calc(100vh - 80px);
    padding: 2rem;
}

.dashboard-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.dashboard-container {
    position: relative;
    z-index: 1;
    max-width: 1000px;
    margin: 0 auto;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 2rem;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    animation: fadeInUp 0.5s ease-out;
}

.welcome-tag {
    display: block;
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 0.25rem;
}

.welcome-text h1 {
    font-size: 1.75rem;
}

.user-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 600;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.dashboard-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    animation: fadeInUp 0.5s ease-out;
}

@media (max-width: 768px) {
    .dashboard-card {
        border-radius: var(--radius-md);
    }
    
    .card-content {
        padding: 1.25rem;
    }
    
    .profile-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        padding: 1rem 0;
    }
    
    .stat-item {
        padding: 1rem 0;
    }
}

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

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--color-border);
}

.card-header h2 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.card-content {
    padding: 1.5rem;
}

.profile-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.profile-item:last-child {
    border-bottom: none;
}

.profile-label {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

.profile-value {
    font-weight: 500;
}

.profile-value.uid {
    font-family: monospace;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.status-active {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-success);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--color-success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
}

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

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

.stat-value {
    font-weight: 600;
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.action-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-family: var(--font-main);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 0.75rem;
}

.action-btn:last-child {
    margin-bottom: 0;
}

.action-btn:hover {
    background: var(--color-bg-card);
    border-color: var(--color-text-muted);
}

.action-btn.danger {
    border-color: rgba(239, 68, 68, 0.3);
}

.action-btn.danger:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

.action-icon {
    font-size: 1.25rem;
}

.footer {
    text-align: center;
    padding: 2rem;
    color: var(--color-text-dim);
    font-size: 0.875rem;
    border-top: 1px solid var(--color-border);
}

@media (max-width: 768px) {
    .footer {
        padding: 1.5rem 1rem;
        font-size: 0.8rem;
    }
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    z-index: 101;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }

    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--color-bg);
        border-bottom: 1px solid var(--color-border);
        flex-direction: column;
        padding: 1.5rem;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 100;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-links .nav-link,
    .nav-links .btn {
        width: 100%;
        text-align: center;
        padding: 0.875rem 1rem;
    }

    .hero {
        padding: 3rem 1rem;
        min-height: calc(100vh - 70px);
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }

    .auth-card {
        padding: 1.5rem;
        margin: 1rem;
    }
    
    .dashboard-section {
        padding: 1rem;
    }

    .dashboard-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
        padding: 1.5rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .features {
        padding: 3rem 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .balance-grid {
        grid-template-columns: 1fr;
    }
    
    .balance-value.large {
        font-size: 1.75rem;
    }
    
    .action-btn {
        padding: 1rem;
        font-size: 1rem;
    }
    
    .main-content {
        padding-top: 70px;
    }
}

.balance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
}

.balance-item {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1rem;
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
}

.balance-item.main-balance {
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.2);
}

.balance-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

.balance-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
}

.balance-value.large {
    font-size: 2rem;
    color: var(--color-primary);
}

@media (max-width: 480px) {
    .nav-logo span:not(.logo-icon) {
        font-size: 1rem;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .hero-tag {
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
    
    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .dashboard-header h1 {
        font-size: 1.5rem;
    }
    
    .card-header h2 {
        font-size: 0.9rem;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
    
    .feature-icon {
        font-size: 2rem;
    }
    
    .auth-card {
        padding: 1.25rem;
    }
    
    .auth-header h1 {
        font-size: 1.5rem;
    }
}