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

:root {
    --primary: #4F46E5;
    --primary-dark: #3730A3;
    --primary-light: #818CF8;
    --dark: #0F172A;
    --dark-light: #1E293B;
    --gray: #64748B;
    --gray-light: #E2E8F0;
    --white: #FFFFFF;
    --bg-light: #F8FAFC;
    --gradient: linear-gradient(135deg, var(--primary) 0%, #7C3AED 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.3s;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(79, 70, 229, 0.5);
}

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

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

.btn-nav {
    padding: 10px 24px;
    background: var(--gradient);
    color: var(--white);
    border-radius: 8px;
}

.btn-large {
    padding: 18px 40px;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: all 0.3s ease;
    background: transparent;
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
}

.logo-disrupt {
    color: var(--white);
}

.logo-solution {
    color: var(--primary-light);
}

.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color 0.3s;
}

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

.lang-switcher {
    display: flex;
    gap: 6px;
    align-items: center;
    margin-left: 8px;
    padding-left: 16px;
    border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.lang-link {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: 4px;
    color: rgba(255, 255, 255, 0.5) !important;
    transition: all 0.3s;
}

.lang-link:hover {
    color: var(--white) !important;
    background: rgba(255, 255, 255, 0.1);
}

.lang-link.active {
    color: var(--white) !important;
    background: var(--primary);
}

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

.nav-toggle span {
    width: 26px;
    height: 2.5px;
    background: var(--white);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #0F172A 0%, #1a1145 50%, #0F172A 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 750px;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1.15;
    margin-bottom: 24px;
}

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

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
    line-height: 1.7;
    max-width: 600px;
}

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

/* ===== SECTION HEADERS ===== */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--dark);
}

.section-header p {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== SERVICES ===== */
.services {
    padding: 100px 0;
    background: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--white);
    padding: 40px 32px;
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid var(--gray-light);
}

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-light);
}

.service-icon {
    width: 56px;
    height: 56px;
    margin-bottom: 24px;
    color: var(--primary);
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.service-card p {
    color: var(--gray);
    line-height: 1.7;
    font-size: 0.95rem;
}

/* ===== SERVICE CARD FEATURED ===== */
.service-card.featured {
    border-color: var(--primary-light);
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.03) 0%, rgba(124, 58, 237, 0.06) 100%);
    position: relative;
}

.service-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: var(--gradient);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== DETAIL SECTIONS ===== */
.detail-section {
    padding: 100px 0;
}

.detail-section:nth-child(odd) {
    background: var(--bg-light);
}

.detail-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.detail-reverse .detail-grid {
    direction: rtl;
}

.detail-reverse .detail-grid > * {
    direction: ltr;
}

.detail-tag {
    display: inline-block;
    background: var(--gradient);
    color: var(--white);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 16px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 20px;
}

.detail-content h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--dark);
    line-height: 1.2;
}

.detail-content > p {
    color: var(--gray);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.detail-list {
    list-style: none;
    margin-bottom: 32px;
}

.detail-list li {
    position: relative;
    padding-left: 28px;
    margin-bottom: 12px;
    color: var(--dark);
    font-size: 0.95rem;
    line-height: 1.6;
}

.detail-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 16px;
    height: 16px;
    background: var(--gradient);
    border-radius: 50%;
    opacity: 0.8;
}

.detail-list li::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 13px;
    width: 6px;
    height: 3px;
    border-left: 2px solid var(--white);
    border-bottom: 2px solid var(--white);
    transform: rotate(-45deg);
}

.detail-image img {
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
    width: 100%;
    object-fit: cover;
    aspect-ratio: 4/3;
}

/* ===== ABOUT ===== */
.about {
    padding: 100px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-image img {
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.about-content h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 24px;
}

.about-content p {
    color: var(--gray);
    margin-bottom: 16px;
    line-height: 1.7;
    font-size: 1.05rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--gray-light);
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray);
}

/* ===== WHY US ===== */
.why-us {
    padding: 100px 0;
    background: var(--dark);
}

.why-us .section-header h2 {
    color: var(--white);
}

.why-us .section-header p {
    color: rgba(255, 255, 255, 0.6);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.feature {
    padding: 32px;
    border-radius: 16px;
    background: var(--dark-light);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s;
}

.feature:hover {
    border-color: var(--primary-light);
    transform: translateY(-4px);
}

.feature-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.feature h3 {
    color: var(--white);
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ===== ENGAGEMENT ===== */
.engagement {
    padding: 100px 0;
    background: var(--bg-light);
}

.engagement-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.engagement-card {
    background: var(--white);
    padding: 36px 28px;
    border-radius: 16px;
    border: 1px solid var(--gray-light);
    text-align: center;
    transition: all 0.3s ease;
}

.engagement-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--primary-light);
}

.engagement-icon {
    width: 52px;
    height: 52px;
    margin: 0 auto 20px;
    color: var(--primary);
}

.engagement-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.engagement-card p {
    color: var(--gray);
    font-size: 0.92rem;
    line-height: 1.7;
}

.engagement-promise {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.engagement-promise blockquote {
    font-size: 1.15rem;
    font-style: italic;
    color: var(--dark);
    line-height: 1.8;
    padding: 32px 40px;
    background: var(--white);
    border-left: 4px solid var(--primary);
    border-radius: 0 12px 12px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

/* ===== CTA BANNER ===== */
.cta-banner {
    padding: 80px 0;
    background: var(--gradient);
    text-align: center;
}

.cta-banner h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 16px;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.85);
    font-size: 1.1rem;
    margin-bottom: 32px;
}

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

.cta-banner .btn-primary:hover {
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.3);
}

/* ===== CONTACT ===== */
.contact {
    padding: 100px 0;
    background: var(--bg-light);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

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

.contact-item svg {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--primary);
    margin-top: 4px;
}

.contact-item h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--gray);
    margin-bottom: 4px;
}

.contact-item a,
.contact-item p {
    font-size: 1.05rem;
    color: var(--dark);
    font-weight: 500;
}

.contact-item a:hover {
    color: var(--primary);
}

.contact-image {
    margin-top: 8px;
}

.contact-image img {
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

/* ===== FORM ===== */
.contact-form {
    background: var(--white);
    padding: 40px;
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.06);
}

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

.form-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-group select,
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1.5px solid var(--gray-light);
    border-radius: 10px;
    font-family: inherit;
    font-size: 1rem;
    color: var(--dark);
    transition: border-color 0.3s;
    background: var(--bg-light);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748B' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group textarea {
    resize: vertical;
}

.form-message {
    margin-top: 16px;
    padding: 14px 20px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 500;
    display: none;
    text-align: center;
}

.form-message.success {
    display: block;
    background: #ECFDF5;
    color: #065F46;
    border: 1px solid #A7F3D0;
}

.form-message.error {
    display: block;
    background: #FEF2F2;
    color: #991B1B;
    border: 1px solid #FECACA;
}

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.5);
    margin-top: 16px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 20px;
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    transition: color 0.3s;
}

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

.footer-contact p,
.footer-contact a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    margin-bottom: 8px;
    display: block;
}

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

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.85rem;
}

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

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

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

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

/* ===== RESPONSIVE — MOBILE ===== */
@media (max-width: 768px) {
    .detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .detail-reverse .detail-grid {
        direction: ltr;
    }

    .detail-section {
        padding: 60px 0;
    }

    .detail-content h2 {
        font-size: 1.6rem;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(15, 23, 42, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
    }

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

    .lang-switcher {
        border-left: none;
        margin-left: 0;
        padding-left: 0;
        justify-content: center;
        padding-top: 8px;
        border-top: 1px solid rgba(255, 255, 255, 0.1);
    }

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

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

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

    .hero-buttons .btn {
        text-align: center;
    }

    .section-header h2,
    .about-content h2,
    .cta-banner h2 {
        font-size: 1.75rem;
    }

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

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

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

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

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

    .engagement-promise blockquote {
        padding: 24px 20px;
        font-size: 1rem;
    }

    .engagement {
        padding: 60px 0;
    }

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

    .contact-form {
        padding: 28px 20px;
    }

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

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

    .about-stats {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .stat {
        display: flex;
        align-items: center;
        gap: 12px;
        text-align: left;
    }
}