/* ===== CSS Variables ===== */
:root {
    --color-primary: #6366F1;
    --color-secondary: #A855F7;
    --color-accent-1: #FF6B6B;
    --color-accent-2: #4ECDC4;
    --color-accent-3: #F472B6;
    --color-dark: #0F172A;
    --color-dark-light: #1E293B;
    --color-gray: #64748B;
    --color-gray-light: #94A3B8;
    --color-white: #FFFFFF;
    --color-off-white: #F8FAFC;

    --gradient-primary: linear-gradient(135deg, #6366F1, #A855F7, #F472B6);
    --gradient-hero: linear-gradient(135deg, #6366F1 0%, #A855F7 50%, #F472B6 100%);

    --font-main: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-white);
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
    font-size: 1.5rem;
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    font-family: var(--font-main);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

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

.btn-secondary:hover {
    background: var(--color-dark);
    color: var(--color-white);
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.125rem;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-weight: 500;
    color: var(--color-gray);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-dark);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    transition: var(--transition);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 24px 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 50px;
    margin-bottom: 24px;
}

.hero h1 {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-gray);
    margin-bottom: 40px;
    max-width: 560px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-shapes {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
    animation: float 6s ease-in-out infinite;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(168, 85, 247, 0.2));
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(244, 114, 182, 0.2), rgba(236, 72, 153, 0.2));
    bottom: -50px;
    left: -50px;
    animation-delay: 2s;
}

.shape-3 {
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, rgba(78, 205, 196, 0.2), rgba(68, 160, 141, 0.2));
    top: 40%;
    left: 10%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* ===== Services Section ===== */
.services {
    padding: 120px 0;
    background: var(--color-off-white);
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.875rem;
    border-radius: 50px;
    margin-bottom: 16px;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.service-card {
    background: var(--color-white);
    padding: 40px 32px;
    border-radius: 24px;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.service-icon {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    margin-bottom: 24px;
}

.service-card h3 {
    margin-bottom: 12px;
}

.service-card p {
    color: var(--color-gray);
}

/* ===== Stats Section ===== */
.stats {
    padding: 80px 0;
    background: var(--color-dark);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 3.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    color: var(--color-gray-light);
    font-size: 1rem;
}

/* ===== CTA Section ===== */
.cta {
    padding: 120px 0;
    background: linear-gradient(135deg, #6366F1 0%, #A855F7 100%);
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta h2 {
    color: var(--color-white);
    margin-bottom: 16px;
}

.cta p {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
    margin-bottom: 32px;
}

.cta .btn-primary {
    background: var(--color-white);
    color: var(--color-primary);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* ===== Footer ===== */
.footer {
    background: var(--color-dark);
    padding: 80px 0 24px;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    display: inline-block;
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--color-gray-light);
    max-width: 300px;
}

.footer-links h4 {
    color: var(--color-white);
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--color-gray-light);
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--color-gray);
    font-size: 0.875rem;
}

/* ===== Blog Page ===== */
.page-header {
    padding: 160px 24px 80px;
    text-align: center;
    background: var(--color-off-white);
}

.page-header h1 {
    margin-bottom: 16px;
}

.page-header p {
    color: var(--color-gray);
    font-size: 1.25rem;
}

.blog-section {
    padding: 80px 0;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 40px;
}

.blog-card {
    background: var(--color-white);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.blog-image {
    height: 220px;
    overflow: hidden;
}

.blog-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.blog-content {
    padding: 32px;
}

.blog-meta {
    display: flex;
    gap: 16px;
    margin-bottom: 16px;
}

.blog-category {
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--color-primary);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
    text-transform: uppercase;
}

.blog-date {
    color: var(--color-gray);
    font-size: 0.875rem;
}

.blog-content h3 {
    margin-bottom: 12px;
    transition: var(--transition);
}

.blog-card:hover h3 {
    color: var(--color-primary);
}

.blog-content p {
    color: var(--color-gray);
    margin-bottom: 20px;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    font-weight: 600;
}

.read-more svg {
    transition: var(--transition);
}

.blog-card:hover .read-more svg {
    transform: translateX(4px);
}

/* ===== Contact Page ===== */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info h2 {
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--color-gray);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(99, 102, 241, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.contact-item p {
    color: var(--color-gray);
}

.contact-form {
    background: var(--color-white);
    padding: 48px;
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 16px;
    border: 2px solid #E2E8F0;
    border-radius: 12px;
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.contact-form .btn {
    width: 100%;
}

/* ===== Newsletter Form ===== */
.newsletter-form {
    display: flex;
    gap: 12px;
    max-width: 480px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    padding: 16px 24px;
    border: none;
    border-radius: 50px;
    font-family: var(--font-main);
    font-size: 1rem;
}

.newsletter-form input:focus {
    outline: none;
}

.newsletter-form .btn {
    flex-shrink: 0;
}

/* ===== Responsive Design ===== */
@media (max-width: 992px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .footer-brand {
        grid-column: span 2;
    }

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

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--color-white);
        flex-direction: column;
        padding: 24px;
        gap: 20px;
        box-shadow: var(--shadow-lg);
    }

    .nav-links.active {
        display: flex;
    }

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

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

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

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

    .hero {
        padding-top: 100px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

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

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

    .contact-form {
        padding: 32px 24px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-brand {
        grid-column: span 1;
    }
}

@media (max-width: 480px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }

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