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

:root {
    --black: #000000;
    --white: #FFFFFF;
    --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;
}

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

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

.gradient-text {
    background: linear-gradient(135deg, var(--black) 0%, var(--gray-600) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--gray-200);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: auto;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 48px;
}

.nav-menu a {
    color: var(--black);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--black);
    transition: width 0.3s;
}

.nav-menu a:hover {
    color: var(--gray-600);
}

.nav-menu a:hover::after {
    width: 100%;
}

.cta-btn {
    background: var(--black);
    color: var(--white);
    padding: 12px 32px;
    border: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.5px;
}

.cta-btn:hover {
    background: var(--gray-800);
    transform: translateY(-1px);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.menu-toggle span {
    width: 28px;
    height: 2px;
    background: var(--black);
    border-radius: 2px;
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: var(--white);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        repeating-linear-gradient(
            90deg,
            transparent,
            transparent 79px,
            var(--gray-100) 79px,
            var(--gray-100) 80px
        ),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 79px,
            var(--gray-100) 79px,
            var(--gray-100) 80px
        );
    opacity: 0.5;
    z-index: -1;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
    padding: 80px 0;
}

.hero-badge {
    display: inline-block;
    padding: 10px 24px;
    background: var(--black);
    color: var(--white);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    margin-bottom: 32px;
}

.hero-title {
    font-size: clamp(42px, 6vw, 72px);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 32px;
    letter-spacing: -2px;
    color: var(--black);
}

.hero-subtitle {
    font-size: clamp(18px, 2vw, 22px);
    color: var(--gray-600);
    margin-bottom: 48px;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
    font-weight: 400;
}

.hero-cta {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-bottom: 80px;
    flex-wrap: wrap;
}

.btn-primary {
    background: var(--black);
    color: var(--white);
    padding: 20px 48px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.5px;
}

.btn-primary:hover {
    background: var(--gray-800);
    transform: translateY(-2px);
}

.btn-primary.large {
    padding: 24px 56px;
    font-size: 18px;
}

.btn-secondary {
    background: var(--white);
    color: var(--black);
    padding: 20px 48px;
    border: 2px solid var(--black);
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 0.5px;
}

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

.hero-stats {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 60px;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-number {
    font-size: 56px;
    font-weight: 900;
    color: var(--black);
    letter-spacing: -2px;
}

.stat-label {
    font-size: 12px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 8px;
    text-align: center;
    font-weight: 600;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background: var(--gray-300);
}

/* Section Styles */
.solution,
.benefits,
.how-it-works,
.industries {
    padding: 120px 0;
}

.solution {
    background: var(--gray-50);
}

.benefits {
    background: var(--black);
    color: var(--white);
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: clamp(36px, 4vw, 56px);
    font-weight: 900;
    margin-bottom: 20px;
    letter-spacing: -2px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-500);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.8;
}

.benefits .section-subtitle {
    color: var(--gray-400);
}

/* Solution Grid */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
}

.solution-card {
    background: var(--white);
    padding: 48px;
    border-radius: 4px;
    border: 1px solid var(--gray-200);
    transition: all 0.4s;
}

.solution-card:hover {
    transform: translateY(-8px);
    border-color: var(--black);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1);
}

.solution-icon {
    font-size: 56px;
    margin-bottom: 32px;
    filter: grayscale(100%);
}

.solution-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.solution-card p {
    color: var(--gray-600);
    line-height: 1.8;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.benefit-card {
    background: var(--gray-900);
    padding: 48px;
    border-radius: 4px;
    border: 1px solid var(--gray-800);
    position: relative;
    transition: all 0.4s;
}

.benefit-card:hover {
    transform: translateY(-8px);
    background: var(--gray-800);
    border-color: var(--white);
}

.benefit-card.featured {
    background: var(--white);
    color: var(--black);
    border-color: var(--white);
}

.benefit-card.featured p,
.benefit-card.featured .benefit-list li {
    color: var(--gray-600);
}

.benefit-badge {
    position: absolute;
    top: 24px;
    right: 24px;
    background: var(--black);
    color: var(--white);
    padding: 8px 16px;
    border-radius: 50px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.benefit-card.featured .benefit-badge {
    background: var(--gray-900);
}

.benefit-number {
    font-size: 96px;
    font-weight: 900;
    opacity: 0.05;
    line-height: 1;
    margin-bottom: 24px;
    letter-spacing: -4px;
}

.benefit-card h3 {
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -1px;
}

.benefit-card p {
    color: var(--gray-300);
    margin-bottom: 32px;
    line-height: 1.8;
}

.benefit-list {
    list-style: none;
}

.benefit-list li {
    padding: 12px 0;
    padding-left: 32px;
    position: relative;
    color: var(--gray-300);
}

.benefit-card.featured .benefit-list li::before {
    color: var(--black);
}

.benefit-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--white);
    font-weight: bold;
    font-size: 18px;
}

/* How It Works */
.steps-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 32px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.step-card {
    flex: 1;
    min-width: 260px;
    text-align: center;
    padding: 48px 32px;
    background: var(--white);
    border-radius: 4px;
    border: 1px solid var(--gray-200);
    transition: all 0.4s;
}

.step-card:hover {
    transform: translateY(-8px);
    border-color: var(--black);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.step-icon {
    font-size: 72px;
    margin-bottom: 24px;
    filter: grayscale(100%);
}

.step-number {
    display: inline-block;
    padding: 10px 24px;
    background: var(--black);
    color: var(--white);
    border-radius: 50px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.step-card h3 {
    font-size: 22px;
    margin-bottom: 16px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.step-card p {
    color: var(--gray-600);
    line-height: 1.8;
}

.step-arrow {
    font-size: 32px;
    color: var(--gray-400);
    font-weight: 300;
}

/* Industries Grid */
.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.industry-card {
    background: var(--white);
    padding: 48px 40px;
    border-radius: 4px;
    border: 1px solid var(--gray-200);
    transition: all 0.4s;
}

.industry-card:hover {
    transform: translateY(-8px);
    border-color: var(--black);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.industry-icon {
    font-size: 56px;
    margin-bottom: 24px;
    filter: grayscale(100%);
}

.industry-card h3 {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.industry-card p {
    color: var(--gray-600);
    line-height: 1.8;
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    background: var(--black);
    text-align: center;
    color: var(--white);
}

.cta-content h2 {
    font-size: clamp(36px, 4vw, 60px);
    font-weight: 900;
    margin-bottom: 24px;
    letter-spacing: -2px;
}

.cta-content p {
    font-size: 20px;
    margin-bottom: 48px;
    color: var(--gray-400);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

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

.cta-section .btn-primary:hover {
    background: var(--gray-100);
}

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 100px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 80px;
}

.footer-logo {
    margin-bottom: 24px;
}

.footer-logo img {
    height: 48px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-col p {
    color: var(--gray-400);
    line-height: 1.9;
    font-size: 15px;
}

.footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 14px;
}

.footer-col a {
    color: var(--gray-400);
    text-decoration: none;
    transition: color 0.3s;
    font-size: 15px;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid var(--gray-800);
    color: var(--gray-500);
    font-size: 14px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    overflow-y: auto;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
}

.modal-content {
    background: var(--white);
    padding: 60px;
    border-radius: 4px;
    max-width: 600px;
    width: 100%;
    position: relative;
    border: 1px solid var(--gray-200);
}

.close {
    position: absolute;
    top: 24px;
    right: 28px;
    font-size: 32px;
    cursor: pointer;
    color: var(--gray-400);
    transition: color 0.3s;
    font-weight: 300;
}

.close:hover {
    color: var(--black);
}

.modal-header {
    text-align: center;
    margin-bottom: 48px;
}

.modal-header h2 {
    font-size: 36px;
    font-weight: 900;
    margin-bottom: 16px;
    letter-spacing: -1px;
}

.modal-header p {
    color: var(--gray-600);
    font-size: 16px;
}

.contact-form .form-group {
    margin-bottom: 28px;
}

.contact-form label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--black);
    font-size: 14px;
    letter-spacing: 0.5px;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 16px 20px;
    border: 1px solid var(--gray-300);
    border-radius: 4px;
    font-size: 16px;
    transition: all 0.3s;
    font-family: inherit;
}

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

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

.submit-btn {
    width: 100%;
    padding: 20px;
    background: var(--black);
    color: var(--white);
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 16px;
    letter-spacing: 0.5px;
}

.submit-btn:hover {
    background: var(--gray-800);
    transform: translateY(-2px);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
    }

    .solution-grid,
    .benefits-grid,
    .industries-grid {
        grid-template-columns: 1fr;
    }

    .steps-container {
        flex-direction: column;
    }

    .step-arrow {
        transform: rotate(90deg);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

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

    .modal-content {
        padding: 40px 28px;
    }
}