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

:root {
    --purple-50: #faf5ff;
    --purple-100: #f3e8ff;
    --purple-200: #e9d5ff;
    --purple-300: #d8b4fe;
    --purple-400: #c084fc;
    --purple-500: #a855f7;
    --purple-600: #9333ea;
    --purple-main: #b07ce8;
    --purple-light: #e8dcf8;
    --purple-bg: #f9f5ff;

    --blue-light: #e0f2fe;
    --blue-pastel: #93c5fd;
    --green-light: #dcfce7;
    --green-pastel: #86efac;
    --orange-light: #ffedd5;
    --orange-pastel: #fdba74;

    --gray-50: #fafafa;
    --gray-100: #f5f5f5;
    --gray-200: #e5e5e5;
    --gray-300: #d4d4d4;
    --gray-400: #a3a3a3;
    --gray-500: #737373;
    --gray-600: #525252;
    --gray-700: #404040;
    --gray-800: #262626;
    --gray-900: #171717;

    --white: #ffffff;
    --text-primary: #1a1a2e;
    --text-secondary: #64648c;
    --text-light: #9999b3;
    --border-color: #e8e8f0;
    --bg-main: #ffffff;
    --bg-section: #fafafe;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-xl: 0 16px 50px rgba(0, 0, 0, 0.1);

    --transition: 0.3s ease;
}

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

body {
    font-family: 'Raleway', sans-serif;
    color: var(--text-primary);
    background: var(--bg-main);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    border-radius: var(--radius-full);
    font-family: 'Raleway', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--purple-600);
    border-color: var(--purple-600);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(176, 124, 232, 0.4);
}

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

.btn-outline:hover {
    border-color: var(--purple-main);
    color: var(--purple-main);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-full {
    width: 100%;
}

/* ===== Navbar ===== */
.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 transparent;
    transition: all var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: 0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-links a {
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--purple-main);
}

.nav-cta {
    padding: 10px 24px;
    font-size: 0.9rem;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition);
}

/* ===== Hero ===== */
.hero {
    padding: 140px 0 80px;
    position: relative;
    overflow: hidden;
    min-height: 85vh;
    display: flex;
    align-items: center;
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 80%, var(--purple-100) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, var(--blue-light) 0%, transparent 50%);
    opacity: 0.5;
    pointer-events: none;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    background: var(--purple-light);
    color: var(--purple-600);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero h1 {
    font-size: 3.2rem;
    font-weight: 700;
    line-height: 1.3;
    letter-spacing: 0.05em;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero Illustration */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-illustration {
    position: relative;
    width: 400px;
    height: 400px;
}

.illustration-circle {
    position: relative;
    width: 100%;
    height: 100%;
    border: 2px dashed var(--purple-200);
    border-radius: 50%;
    animation: slowRotate 60s linear infinite;
}

.illustration-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    animation: slowRotateReverse 60s linear infinite;
}

.illustration-logo {
    width: 70px;
    height: 70px;
    border-radius: 50%;
}

.orbit-item {
    position: absolute;
    width: 48px;
    height: 48px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    color: var(--text-light);
    animation: slowRotateReverse 60s linear infinite;
}

.orbit-1 { top: -24px; left: 50%; transform: translateX(-50%); }
.orbit-2 { top: 15%; right: -10px; }
.orbit-3 { bottom: 15%; right: -10px; }
.orbit-4 { bottom: -24px; left: 50%; transform: translateX(-50%); }
.orbit-5 { bottom: 15%; left: -10px; }
.orbit-6 { top: 15%; left: -10px; }

@keyframes slowRotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes slowRotateReverse {
    from { transform: rotate(0deg); }
    to { transform: rotate(-360deg); }
}

/* ===== Sections ===== */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

/* ===== Services ===== */
.services {
    background: var(--bg-section);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition);
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--purple-200);
}

.service-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon.purple {
    background: var(--purple-100);
    color: var(--purple-500);
}

.service-icon.blue {
    background: var(--blue-light);
    color: var(--blue-pastel);
}

.service-icon.green {
    background: var(--green-light);
    color: var(--green-pastel);
}

.service-icon.orange {
    background: var(--orange-light);
    color: var(--orange-pastel);
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.service-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ===== About ===== */
.about-content {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: start;
}

.about-text h2 {
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.about-lead {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: 36px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-feature {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.feature-check {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    background: var(--green-light);
    color: #22c55e;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 2px;
}

.about-feature h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.about-feature p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.stat-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 28px 24px;
    text-align: center;
    transition: all var(--transition);
}

.stat-card:hover {
    border-color: var(--purple-200);
    box-shadow: var(--shadow-md);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--purple-main);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ===== Process ===== */
.process {
    background: var(--bg-section);
}

.process-steps {
    display: flex;
    align-items: flex-start;
    gap: 0;
}

.process-step {
    flex: 1;
    text-align: center;
    padding: 0 20px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    background: var(--purple-main);
    color: var(--white);
    border-radius: 50%;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.process-step h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.process-step p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.process-connector {
    flex-shrink: 0;
    width: 40px;
    height: 2px;
    background: var(--purple-200);
    margin-top: 28px;
}

/* ===== CTA Section ===== */
.cta-section {
    padding: 60px 0;
}

.cta-card {
    background: var(--text-primary);
    color: var(--white);
    border-radius: var(--radius-xl);
    padding: 60px;
    text-align: center;
}

.cta-card h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.cta-card p {
    font-size: 1.1rem;
    color: var(--gray-400);
    margin-bottom: 32px;
}

.cta-card .btn-primary {
    background: var(--purple-main);
    border-color: var(--purple-main);
}

.cta-card .btn-primary:hover {
    background: var(--purple-400);
    border-color: var(--purple-400);
}

/* ===== Use Cases ===== */
.cases {
    background: var(--bg-section);
}

.cases-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.case-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: grid;
    grid-template-columns: 320px 1fr;
    transition: all var(--transition);
}

.case-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--purple-200);
}

.case-visual {
    background: linear-gradient(135deg, var(--purple-50) 0%, var(--purple-100) 100%);
    padding: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 24px;
}

.case-icon-wrap {
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    color: var(--purple-main);
}

.case-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.case-tag {
    padding: 4px 12px;
    background: var(--white);
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--purple-600);
    border: 1px solid var(--purple-200);
}

.case-content {
    padding: 40px;
}

.case-content h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.case-description {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 24px;
}

.case-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 28px;
}

.case-feature {
    display: flex;
    gap: 10px;
    align-items: flex-start;
}

.case-feature svg {
    flex-shrink: 0;
    color: #22c55e;
    margin-top: 2px;
}

.case-feature span {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.case-result {
    display: flex;
    gap: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.result-metric {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--purple-main);
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ===== Contact ===== */
.contact-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-form {
    background: var(--white);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: 'Raleway', sans-serif;
    font-size: 0.95rem;
    color: var(--text-primary);
    background: var(--gray-50);
    transition: all var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--purple-main);
    background: var(--white);
    box-shadow: 0 0 0 3px rgba(176, 124, 232, 0.15);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-info-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--bg-section);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: var(--purple-light);
    color: var(--purple-main);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-info-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.contact-info-card a,
.contact-info-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.contact-info-card a:hover {
    color: var(--purple-main);
}

/* ===== Footer ===== */
.footer {
    background: var(--gray-50);
    border-top: 1px solid var(--border-color);
    padding: 48px 0 24px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 320px;
}

.footer-brand .nav-logo {
    margin-bottom: 12px;
}

.footer-brand p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.footer-links h4 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.footer-links a {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

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

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* ===== Animations ===== */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero h1 {
        font-size: 2.6rem;
    }

    .hero-illustration {
        width: 320px;
        height: 320px;
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        padding: 24px;
        gap: 20px;
        border-bottom: 1px solid var(--border-color);
        box-shadow: var(--shadow-md);
    }

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

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

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

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero {
        padding: 120px 0 60px;
        min-height: auto;
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-actions {
        justify-content: center;
    }

    .hero-visual {
        order: -1;
    }

    .hero-illustration {
        width: 260px;
        height: 260px;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .section {
        padding: 70px 0;
    }

    .section-header h2 {
        font-size: 1.9rem;
    }

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

    .case-card {
        grid-template-columns: 1fr;
    }

    .case-visual {
        padding: 28px;
        flex-direction: row;
        justify-content: flex-start;
    }

    .case-content {
        padding: 28px;
    }

    .case-result {
        flex-wrap: wrap;
        gap: 20px;
    }

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

    .about-stats {
        grid-template-columns: repeat(2, 1fr);
    }

    .process-steps {
        flex-direction: column;
        gap: 24px;
        align-items: center;
    }

    .process-connector {
        width: 2px;
        height: 24px;
        margin-top: 0;
    }

    .cta-card {
        padding: 40px 24px;
    }

    .cta-card h2 {
        font-size: 1.8rem;
    }

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

    .contact-form {
        padding: 28px;
    }

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

    .footer-content {
        flex-direction: column;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 1.8rem;
    }

    .btn-lg {
        padding: 14px 28px;
        font-size: 0.95rem;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .stat-card {
        padding: 20px 16px;
    }
}