@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: #00B8D4;
    --accent-color: #7C3AED;
    --accent-light: #A78BFA;
    --dark-bg: #0A0E27;
    --dark-card: #151B3D;
    --text-primary: #FFFFFF;
    --text-secondary: #94A3B8;
    --text-muted: #64748B;
    --success-color: #10B981;
    --warning-color: #F59E0B;
    --error-color: #EF4444;
    --border-color: #1E293B;
    --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-accent: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-color) 100%);
    --shadow-sm: 0 2px 8px rgba(0, 102, 255, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 102, 255, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 102, 255, 0.2);
    --shadow-glow: 0 0 20px rgba(0, 102, 255, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 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-bg);
    border-left: 1px solid var(--border-color);
}

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

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

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 0.3s ease;
}

header.scrolled {
    box-shadow: var(--shadow-md);
    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;
    transition: all 0.3s ease;
}

.logo:hover {
    transform: scale(1.05);
    filter: brightness(1.2);
}

nav a {
    position: relative;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

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

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

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

.mobile-menu-toggle {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.mobile-menu-toggle:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.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 0.3s ease;
}

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

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-primary);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.btn-primary::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 ease;
}

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

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

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

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: 2px solid var(--primary-color);
    cursor: pointer;
}

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

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    border: 2px solid var(--border-color);
    cursor: pointer;
}

.btn-outline:hover {
    border-color: var(--primary-color);
    background: rgba(0, 102, 255, 0.1);
    transform: translateY(-2px);
}

.card {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.card:hover::before {
    transform: scaleX(1);
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
    background: rgba(0, 102, 255, 0.05);
}

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

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

.form-error {
    color: var(--error-color);
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-group.error input,
.form-group.error textarea,
.form-group.error select {
    border-color: var(--error-color);
}

.form-group.error .form-error {
    display: block;
}

.accordion-item {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.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 0.3s ease;
    user-select: none;
}

.accordion-header:hover {
    background: rgba(0, 102, 255, 0.05);
}

.accordion-header i {
    font-size: 1.25rem;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

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

.accordion-content {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-secondary);
    line-height: 1.8;
    display: none;
}

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

.portfolio-item {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.portfolio-image {
    width: 100%;
    height: 200px;
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.portfolio-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 102, 255, 0.3) 0%, rgba(124, 58, 237, 0.3) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.portfolio-item:hover .portfolio-image::after {
    opacity: 1;
}

.portfolio-image i {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.9);
    z-index: 1;
}

.portfolio-content {
    padding: 1.5rem;
}

.portfolio-content h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
}

.portfolio-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(21, 27, 61, 0.98);
    backdrop-filter: blur(10px);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
    z-index: 9999;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-banner.show {
    transform: translateY(0);
}

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

.cookie-banner p {
    color: var(--text-secondary);
    margin: 0;
    flex: 1;
    min-width: 250px;
}

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

.cookie-banner button {
    padding: 0.625rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-size: 0.95rem;
}

.cookie-accept {
    background: var(--gradient-primary);
    color: var(--text-primary);
}

.cookie-accept:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.cookie-decline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.cookie-decline:hover {
    background: var(--dark-card);
    color: var(--text-primary);
}

.loading-spinner {
    display: inline-block;
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s 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;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

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

.hero-section {
    position: relative;
    overflow: hidden;
    padding: 6rem 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(0, 102, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

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

.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 {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
    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;
    margin-bottom: 0.5rem;
}

.badge {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    background: rgba(0, 102, 255, 0.1);
    color: var(--primary-color);
    border-radius: 2rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(0, 102, 255, 0.2);
}

.badge-secondary {
    background: rgba(0, 217, 255, 0.1);
    color: var(--secondary-color);
    border-color: rgba(0, 217, 255, 0.2);
}

.badge-accent {
    background: rgba(124, 58, 237, 0.1);
    color: var(--accent-color);
    border-color: rgba(124, 58, 237, 0.2);
}

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

.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 1rem;
    left: 1.5rem;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.2;
    font-family: Georgia, serif;
}

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

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

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

.testimonial-info h4 {
    color: var(--text-primary);
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

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

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.25rem;
}

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

.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.timeline-item {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 0.5rem;
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--dark-bg);
    box-shadow: 0 0 0 3px var(--primary-color);
}

.timeline-content {
    background: var(--dark-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
}

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

.alert i {
    font-size: 1.5rem;
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: var(--success-color);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: var(--warning-color);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--error-color);
}

.alert-info {
    background: rgba(0, 102, 255, 0.1);
    border: 1px solid rgba(0, 102, 255, 0.3);
    color: var(--primary-color);
}

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

    .stats-number {
        font-size: 2.5rem;
    }

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

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

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

    .cookie-banner button {
        flex: 1;
    }

    .hero-section {
        padding: 4rem 0;
    }

    .timeline {
        padding-left: 1.5rem;
    }

    .timeline-item {
        padding-left: 1.5rem;
    }

    .timeline-item::before {
        left: -2rem;
    }
}

@media (max-width: 640px) {
    .section-title {
        font-size: 1.75rem;
    }

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

    .card {
        padding: 1.5rem;
    }

    .btn-primary,
    .btn-secondary,
    .btn-outline {
        padding: 0.625rem 1.5rem;
        font-size: 0.95rem;
    }
}