@import url('https://cdn.jsdelivr.net/npm/tailwindcss@2.2.19/dist/tailwind.min.css');
@import url('https://cdn.jsdelivr.net/npm/remixicon@2.5.0/fonts/remixicon.css');

:root {
    --primary-color: #0066FF;
    --primary-dark: #0052CC;
    --primary-light: #3385FF;
    --secondary-color: #00D9FF;
    --secondary-dark: #00B8D9;
    --accent-color: #7C3AED;
    --accent-light: #A78BFA;
    --dark-bg: #0A0E27;
    --dark-surface: #151B3D;
    --dark-card: #1E2749;
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --success: #10B981;
    --warning: #F59E0B;
    --error: #EF4444;
    --border-color: #2D3B5F;
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--secondary-color) 0%, var(--primary-color) 100%);
    --gradient-dark: linear-gradient(180deg, var(--dark-bg) 0%, var(--dark-surface) 100%);
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 20px rgba(0, 102, 255, 0.3);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

::-webkit-scrollbar {
    width: 12px;
}

::-webkit-scrollbar-track {
    background: var(--dark-surface);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 6px;
    border: 2px solid var(--dark-surface);
}

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

header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(10, 14, 39, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

header.scrolled {
    box-shadow: var(--shadow-lg);
    background: rgba(10, 14, 39, 0.98);
}

.logo {
    font-size: 1.75rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

nav a {
    position: relative;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: 0.5rem 1rem;
}

nav a:hover {
    color: var(--text-primary);
}

nav a.active {
    color: var(--primary-color);
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transform: translateX(-50%);
    transition: width var(--transition-normal);
}

nav a:hover::after,
nav a.active::after {
    width: 80%;
}

.mobile-menu-toggle {
    cursor: pointer;
    color: var(--text-primary);
    font-size: 1.5rem;
    transition: color var(--transition-fast);
}

.mobile-menu-toggle:hover {
    color: var(--primary-color);
}

.mobile-menu {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    z-index: 999;
}

.mobile-menu a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
    transition: all var(--transition-fast);
}

.mobile-menu a:hover {
    background: var(--dark-surface);
    color: var(--text-primary);
    padding-left: 2rem;
}

.mobile-menu a.active {
    color: var(--primary-color);
    background: var(--dark-surface);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    font-size: 1rem;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-md);
}

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

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

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

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

.btn-outline:hover {
    background: var(--dark-surface);
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

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

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn:disabled:hover {
    transform: none;
}

.card {
    background: var(--dark-card);
    border-radius: 1rem;
    padding: 2rem;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
    background: var(--gradient-primary);
    color: var(--text-primary);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
}

form {
    background: var(--dark-card);
    padding: 2rem;
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--dark-surface);
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

input:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

textarea {
    resize: vertical;
    min-height: 120px;
}

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

.form-error {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.form-success {
    color: var(--success);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.accordion-item {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.accordion-item:hover {
    border-color: var(--primary-color);
}

.accordion-header {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.accordion-header:hover {
    background: var(--dark-surface);
}

.accordion-header i {
    font-size: 1.25rem;
    color: var(--primary-color);
    transition: transform var(--transition-normal);
}

.accordion-header.active i {
    transform: rotate(180deg);
}

.accordion-content {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    display: none;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.portfolio-item {
    background: var(--dark-card);
    border-radius: 1rem;
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.portfolio-image {
    width: 100%;
    height: 250px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.2);
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

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

.portfolio-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

.portfolio-tag {
    padding: 0.25rem 0.75rem;
    background: var(--dark-surface);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(10, 14, 39, 0.98);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
    z-index: 9999;
    box-shadow: var(--shadow-xl);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-text {
    flex: 1;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.cookie-buttons {
    display: flex;
    gap: 1rem;
}

.loading-spinner {
    display: inline-block;
    width: 40px;
    height: 40px;
    border: 4px solid var(--dark-surface);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 14, 39, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
}

.hero-section {
    min-height: 600px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(0, 102, 255, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(124, 58, 237, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.feature-icon {
    width: 80px;
    height: 80px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1.5rem;
    background: var(--gradient-primary);
    color: var(--text-primary);
    box-shadow: var(--shadow-glow);
}

.stats-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.stats-label {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-top: 0.5rem;
}

.testimonial-card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    position: relative;
}

.testimonial-quote {
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    top: 1rem;
    left: 1rem;
}

.testimonial-text {
    color: var(--text-secondary);
    font-style: italic;
    margin-bottom: 1.5rem;
    position: relative;
    z-index: 1;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonial-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.testimonial-info h4 {
    color: var(--text-primary);
    font-weight: 600;
}

.testimonial-info p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.pricing-card {
    background: var(--dark-card);
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    padding: 2.5rem;
    text-align: center;
    transition: all var(--transition-normal);
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-xl);
}

.pricing-card.featured {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--dark-card) 0%, rgba(0, 102, 255, 0.05) 100%);
}

.pricing-price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin: 1rem 0;
}

.pricing-features {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
}

.pricing-features li {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features li i {
    color: var(--success);
    font-size: 1.25rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-primary {
    background: var(--primary-color);
    color: var(--text-primary);
}

.badge-success {
    background: var(--success);
    color: var(--text-primary);
}

.badge-warning {
    background: var(--warning);
    color: var(--dark-bg);
}

.badge-error {
    background: var(--error);
    color: var(--text-primary);
}

.alert {
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning);
    color: var(--warning);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

.alert-info {
    background: rgba(0, 102, 255, 0.1);
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
}

footer {
    background: var(--dark-surface);
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--dark-card);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    border: 1px solid var(--border-color);
}

.social-links a:hover {
    background: var(--primary-color);
    color: var(--text-primary);
    transform: translateY(-3px);
    border-color: var(--primary-color);
}

@media (max-width: 768px) {
    .section-title {
        font-size: 2rem;
    }

    .section-subtitle {
        font-size: 1rem;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .cookie-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .cookie-buttons {
        width: 100%;
        flex-direction: column;
    }

    .cookie-buttons .btn {
        width: 100%;
    }

    .stats-number {
        font-size: 2rem;
    }

    .pricing-price {
        font-size: 2rem;
    }
}

@media (max-width: 640px) {
    html {
        font-size: 14px;
    }

    .btn {
        padding: 0.625rem 1.25rem;
    }

    .card {
        padding: 1.5rem;
    }

    form {
        padding: 1.5rem;
    }
}