/* ============================================
   NEXABYTE — Minimal Matte Design System
   ============================================ */

/* ===== VARIABLES ===== */
:root {
    --black: #111111;
    --dark: #222222;
    --gray-900: #333333;
    --gray-700: #555555;
    --gray-500: #888888;
    --gray-400: #999999;
    --gray-300: #CCCCCC;
    --gray-200: #E5E5E5;
    --gray-100: #F5F5F5;
    --white: #FFFFFF;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --transition: all 0.2s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    color: var(--black);
    background: var(--white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }

/* ===== UTILITY ===== */
.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 96px 0;
}

.section-gray {
    background: var(--gray-100);
}

.text-white { color: var(--white); }
.text-light { color: var(--gray-300); }
.text-muted { color: var(--gray-500); }

/* ===== TYPOGRAPHY ===== */
.heading-2 {
    font-size: 36px;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.5px;
    color: var(--black);
}

.heading-3 {
    font-size: 22px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--black);
}

.heading-4 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.4;
    color: var(--black);
}

.text-body {
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-700);
}

.text-small {
    font-size: 14px;
    line-height: 1.6;
}

.label {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--gray-500);
    margin-bottom: 12px;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    font-size: 14px;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.btn-dark {
    background: var(--black);
    color: var(--white);
    border-color: var(--black);
}

.btn-dark:hover {
    background: var(--dark);
    opacity: 0.85;
}

.btn-ghost {
    background: transparent;
    color: var(--black);
    border-color: var(--gray-200);
}

.btn-ghost:hover {
    border-color: var(--black);
}

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

.btn-white:hover {
    opacity: 0.9;
}

.btn-ghost-white {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.3);
}

.btn-ghost-white:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
}

.btn-full {
    width: 100%;
    justify-content: center;
    padding: 14px 28px;
}

/* ===== TEXT LINK ===== */
.text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 15px;
    font-weight: 600;
    color: var(--black);
    margin-top: 24px;
}

.text-link:hover {
    gap: 10px;
}

.text-link svg {
    width: 16px;
    height: 16px;
}

/* ===== DIVIDERS ===== */
.divider hr {
    border: none;
    border-top: 1px solid var(--gray-200);
}

.divider-line {
    height: 1px;
    background: var(--gray-200);
    margin: 64px 0;
}

/* ===== NAVBAR ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    border-bottom-color: var(--gray-200);
}

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

.logo {
    font-size: 20px;
    font-weight: 800;
    color: var(--black);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-500);
    border-radius: 6px;
    transition: var(--transition);
}

.nav-link:hover { color: var(--black); }
.nav-link.active { color: var(--black); font-weight: 600; }

.nav-cta {
    padding: 8px 20px;
    background: var(--black);
    color: var(--white);
    font-size: 13px;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition);
}

.nav-cta:hover { opacity: 0.85; }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 6px;
    z-index: 1001;
    padding: 4px;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--black);
    transition: var(--transition);
    display: block;
}

.hamburger.active span:first-child {
    transform: rotate(45deg) translate(3px, 3px);
}

.hamburger.active span:last-child {
    transform: rotate(-45deg) translate(3px, -3px);
}

/* ===== HERO ===== */
.hero {
    padding: 180px 0 120px;
}

.hero-content {
    max-width: 680px;
}

.hero-label {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--gray-500);
    margin-bottom: 20px;
}

.hero-title {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1px;
    color: var(--black);
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 18px;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: 40px;
    max-width: 540px;
}

.hero-actions {
    display: flex;
    gap: 12px;
}

/* ===== SPLIT GRID ===== */
.split-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

/* ===== SECTION INTRO ===== */
.section-intro {
    margin-bottom: 56px;
}

.section-cta {
    margin-top: 48px;
    text-align: center;
}

/* ===== SERVICE CARDS (Home) ===== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--gray-200);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    overflow: hidden;
}

.service-card {
    background: var(--white);
    padding: 40px 36px;
    transition: var(--transition);
}

.service-card:hover {
    background: var(--gray-100);
}

.service-icon {
    margin-bottom: 20px;
    color: var(--black);
}

.service-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 1.5;
}

.service-card .heading-3 {
    margin-bottom: 10px;
}

.service-card .text-body {
    font-size: 15px;
}

/* ===== FEATURES LIST ===== */
.features-list {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

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

.feature-icon {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
}

.feature-icon svg {
    width: 18px;
    height: 18px;
    stroke-width: 1.5;
}

.feature-item .text-small {
    color: var(--gray-700);
    margin-top: 2px;
}

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.testimonial-card {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 32px;
}

.testimonial-stars {
    display: flex;
    gap: 2px;
    margin-bottom: 16px;
}

.star-filled {
    width: 16px;
    height: 16px;
    color: var(--black);
    fill: var(--black);
}

.testimonial-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--gray-700);
    margin-bottom: 24px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 40px;
    height: 40px;
    background: var(--black);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
}

.author-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--black);
}

.author-role {
    font-size: 13px;
    color: var(--gray-500);
}

/* ===== CTA SECTION ===== */
.cta-section {
    background: var(--black);
}

.cta-content {
    text-align: center;
    max-width: 520px;
    margin: 0 auto;
}

.cta-content .heading-2 {
    color: var(--white);
    margin-bottom: 12px;
}

.cta-content .text-body {
    color: var(--gray-400);
    margin-bottom: 32px;
}

.cta-actions {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== FOOTER ===== */
.footer {
    background: var(--gray-100);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--gray-200);
}

.footer-logo {
    font-size: 18px;
    font-weight: 800;
    color: var(--black);
    display: block;
    margin-bottom: 12px;
}

.footer-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gray-500);
    margin-bottom: 16px;
}

.footer-links li {
    margin-bottom: 8px;
}

.footer-links a,
.footer-links li {
    font-size: 14px;
    color: var(--gray-700);
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
}

.footer-socials {
    display: flex;
    gap: 16px;
}

.footer-socials a {
    color: var(--gray-500);
    transition: var(--transition);
}

.footer-socials a:hover {
    color: var(--black);
}

.footer-socials svg {
    width: 18px;
    height: 18px;
}

/* ===== PAGE HEADER (Inner Pages) ===== */
.page-header {
    padding: 140px 0 60px;
    border-bottom: 1px solid var(--gray-200);
}

.page-title {
    font-size: 44px;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--black);
    margin-bottom: 12px;
}

.page-subtitle {
    font-size: 18px;
    color: var(--gray-700);
    max-width: 520px;
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--gray-500);
    margin-bottom: 20px;
}

.breadcrumb a {
    color: var(--gray-500);
}

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

/* ===== TWO COL GRID ===== */
.two-col-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.info-card {
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 36px;
}

.info-icon {
    margin-bottom: 20px;
    color: var(--black);
}

.info-icon svg {
    width: 28px;
    height: 28px;
    stroke-width: 1.5;
}

.info-card .heading-3 {
    margin-bottom: 10px;
}

/* ===== NUMBERS ===== */
.numbers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    text-align: center;
}

.number-value {
    font-size: 44px;
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--black);
    line-height: 1;
    margin-bottom: 6px;
}

.number-label {
    font-size: 14px;
    color: var(--gray-500);
}

/* ===== TEAM ===== */
.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.team-card {
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 36px;
    text-align: center;
}

.team-avatar {
    width: 64px;
    height: 64px;
    background: var(--black);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    font-weight: 700;
    margin: 0 auto 16px;
}

.team-card .heading-4 {
    margin-bottom: 4px;
}

/* ===== SERVICE BLOCKS (Services Page) ===== */
.service-block {
    padding: 0;
}

.service-block-header {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    margin-bottom: 28px;
}

.service-block-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    border: 1px solid var(--gray-200);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
    margin-top: 4px;
}

.service-block-icon svg {
    width: 22px;
    height: 22px;
    stroke-width: 1.5;
}

.service-block-header .heading-2 {
    margin-bottom: 8px;
}

.service-block-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 28px;
    padding-left: 68px;
}

.feature-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--gray-100);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-900);
}

.feature-tag svg {
    width: 14px;
    height: 14px;
    stroke-width: 2;
}

.service-block .btn {
    margin-left: 68px;
}

/* ===== PROCESS ===== */
.process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.process-item {
    padding: 32px 24px;
    text-align: center;
}

.process-number {
    font-size: 40px;
    font-weight: 800;
    color: var(--gray-200);
    letter-spacing: -1px;
    line-height: 1;
    margin-bottom: 16px;
}

.process-item .heading-4 {
    margin-bottom: 8px;
}

.process-item .text-small {
    color: var(--gray-700);
}

/* ===== CONTACT PAGE ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 28px;
    padding-top: 8px;
}

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

.contact-item-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--black);
}

.contact-item-icon svg {
    width: 18px;
    height: 18px;
    stroke-width: 1.5;
}

.contact-item .heading-4 {
    margin-bottom: 2px;
}

.contact-item .text-body {
    font-size: 14px;
}

/* ===== CONTACT FORM ===== */
.contact-form-wrap {
    border: 1px solid var(--gray-200);
    border-radius: 8px;
    padding: 36px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    margin-bottom: 16px;
}

.form-row .form-group {
    margin-bottom: 0;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--black);
    margin-bottom: 6px;
}

.required {
    color: var(--gray-400);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 14px;
    border: 1px solid var(--gray-200);
    border-radius: 6px;
    font-family: var(--font);
    font-size: 14px;
    color: var(--black);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--gray-400);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-error {
    font-size: 12px;
    color: #DC2626;
    margin-top: 4px;
    display: none;
}

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

.form-group input.error,
.form-group textarea.error {
    border-color: #DC2626;
}

.form-success {
    display: none;
    text-align: center;
    padding: 40px 20px;
}

.form-success.show { display: block; }

.success-icon {
    margin-bottom: 20px;
    color: var(--black);
}

.success-icon svg {
    width: 48px;
    height: 48px;
    stroke-width: 1.5;
}

.form-success .heading-3 {
    margin-bottom: 8px;
}

.form-success .text-body {
    margin-bottom: 24px;
}

/* ===== MAP ===== */
.map-section {
    line-height: 0;
}

.map-section iframe {
    filter: grayscale(100%);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .hero-title { font-size: 42px; }
    .heading-2 { font-size: 30px; }
    .page-title { font-size: 36px; }

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

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

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

@media (max-width: 768px) {
    .hamburger { display: flex; }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 260px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 80px 24px 24px;
        border-left: 1px solid var(--gray-200);
        transition: all 0.3s ease;
        gap: 0;
    }

    .nav-links.active { right: 0; }

    .nav-link {
        width: 100%;
        padding: 12px 16px;
    }

    .nav-cta { display: none; }

    .hero { padding: 130px 0 80px; }
    .hero-title { font-size: 34px; }
    .hero-subtitle { font-size: 16px; }

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

    .hero-actions .btn {
        text-align: center;
        justify-content: center;
    }

    .section { padding: 64px 0; }
    .heading-2 { font-size: 26px; }
    .page-title { font-size: 30px; }
    .page-header { padding: 120px 0 48px; }

    .split-grid,
    .two-col-grid,
    .contact-grid,
    .services-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .testimonials-grid,
    .team-grid,
    .numbers-grid,
    .process-grid {
        grid-template-columns: 1fr;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

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

    .service-block-header {
        flex-direction: column;
    }

    .service-block-features {
        padding-left: 0;
    }

    .service-block .btn {
        margin-left: 0;
    }

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

@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero-title { font-size: 28px; }
    .heading-2 { font-size: 24px; }
    .page-title { font-size: 26px; }
    .contact-form-wrap { padding: 24px 20px; }
    .number-value { font-size: 36px; }
}