/* ============================================================
   Matrix Technical Services — Main Stylesheet
   ============================================================ */

:root {
    --navy:       #0d1b2a;
    --navy-mid:   #112236;
    --navy-light: #1a3050;
    --blue:       #1e88e5;
    --blue-hover: #1565c0;
    --blue-light: #e3f2fd;
    --white:      #ffffff;
    --off-white:  #f5f7fa;
    --grey-light: #e8ecf0;
    --grey:       #9aa5b1;
    --text:       #1a1a2e;
    --text-light: #4a5568;
    --shadow:     0 4px 24px rgba(0,0,0,0.10);
    --shadow-md:  0 8px 32px rgba(0,0,0,0.14);
    --radius:     8px;
    --radius-lg:  14px;
    --transition: 0.22s ease;
    --font:       'Segoe UI', system-ui, -apple-system, sans-serif;
}

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

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

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--white);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; }

/* ---- Typography ------------------------------------------- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; color: var(--navy); }
h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.25rem; }
p  { color: var(--text-light); }

/* ---- Layout helpers --------------------------------------- */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.section    { padding: 80px 0; }
.section--alt { background: var(--off-white); }

.section-header { text-align: center; margin-bottom: 56px; }
.section-header p { max-width: 580px; margin: 12px auto 0; font-size: 1.05rem; }

.section-divider {
    display: block;
    width: 56px;
    height: 4px;
    background: var(--blue);
    border-radius: 2px;
    margin: 16px auto 0;
}

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--navy);
    box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

/* Logo */
.navbar__logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.navbar__logo-icon {
    width: 38px;
    height: 38px;
    background: var(--blue);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 900;
    color: var(--white);
    letter-spacing: -1px;
    flex-shrink: 0;
}

.navbar__logo-text {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
}

.navbar__logo-text span {
    display: block;
    font-size: 0.7rem;
    font-weight: 400;
    color: var(--grey);
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Nav links */
.navbar__nav { display: flex; align-items: center; gap: 4px; }

.navbar__link {
    color: #c8d6e5;
    font-size: 0.95rem;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius);
    transition: background var(--transition), color var(--transition);
    position: relative;
}

.navbar__link:hover,
.navbar__link.active {
    color: var(--white);
    background: var(--navy-light);
}

.navbar__link.active { color: var(--blue); }

/* Services dropdown */
.navbar__dropdown { position: relative; }

.navbar__dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.navbar__dropdown-toggle .chevron {
    width: 16px;
    height: 16px;
    transition: transform var(--transition);
    stroke: currentColor;
}

.navbar__dropdown:hover .chevron,
.navbar__dropdown.open .chevron { transform: rotate(180deg); }

.navbar__dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 210px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--grey-light);
    overflow: hidden;
    z-index: 100;
}

.navbar__dropdown:hover .navbar__dropdown-menu,
.navbar__dropdown.open .navbar__dropdown-menu { display: block; }

.navbar__dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    color: var(--text);
    font-size: 0.93rem;
    font-weight: 500;
    transition: background var(--transition), color var(--transition);
    border-bottom: 1px solid var(--grey-light);
}

.navbar__dropdown-menu a:last-child { border-bottom: none; }

.navbar__dropdown-menu a:hover {
    background: var(--blue-light);
    color: var(--blue);
}

.navbar__dropdown-menu .menu-icon {
    width: 18px;
    height: 18px;
    color: var(--blue);
    flex-shrink: 0;
}

/* Hamburger */
.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.navbar__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 50%, #0a2744 100%);
    color: var(--white);
    padding: 100px 0 110px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 20% 50%, rgba(30,136,229,0.18) 0%, transparent 60%),
        radial-gradient(circle at 80% 20%, rgba(30,136,229,0.10) 0%, transparent 50%);
    pointer-events: none;
}

/* Grid pattern overlay */
.hero::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
}

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

.hero__tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(30,136,229,0.15);
    border: 1px solid rgba(30,136,229,0.35);
    color: #90caf9;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 6px 14px;
    border-radius: 50px;
    margin-bottom: 24px;
}

.hero__title {
    color: var(--white);
    margin-bottom: 20px;
}

.hero__title .accent { color: var(--blue); }

.hero__subtitle {
    color: #b0c4d8;
    font-size: 1.15rem;
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 480px;
}

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

.hero__graphic {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__card-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    width: 100%;
    max-width: 380px;
}

.hero__mini-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    backdrop-filter: blur(4px);
    transition: transform var(--transition), border-color var(--transition);
}

.hero__mini-card:hover {
    transform: translateY(-3px);
    border-color: rgba(30,136,229,0.4);
}

.hero__mini-card svg {
    width: 28px;
    height: 28px;
    color: var(--blue);
    margin: 0 auto 8px;
}

.hero__mini-card span {
    display: block;
    color: #c8d6e5;
    font-size: 0.78rem;
    font-weight: 600;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 13px 28px;
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    border: 2px solid transparent;
    text-decoration: none;
    white-space: nowrap;
}

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

.btn--primary:hover {
    background: var(--blue-hover);
    border-color: var(--blue-hover);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(30,136,229,0.35);
}

.btn--outline {
    background: transparent;
    color: var(--white);
    border-color: rgba(255,255,255,0.35);
}

.btn--outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.6);
    color: var(--white);
    transform: translateY(-2px);
}

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

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

/* ============================================================
   WHY CHOOSE US
   ============================================================ */
.features { padding: 80px 0; background: var(--white); }

.features__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--grey-light);
    text-align: center;
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}

.feature-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--blue);
}

.feature-card__icon {
    width: 60px;
    height: 60px;
    background: var(--blue-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.feature-card__icon svg { width: 28px; height: 28px; color: var(--blue); }

.feature-card h3 { margin-bottom: 10px; color: var(--navy); }
.feature-card p  { font-size: 0.95rem; }

/* ============================================================
   SERVICES OVERVIEW (home page grid)
   ============================================================ */
.services-overview { padding: 80px 0; background: var(--off-white); }

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px 26px;
    border: 1px solid var(--grey-light);
    transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
    display: flex;
    flex-direction: column;
}

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

.service-card__icon {
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}

.service-card__icon svg { width: 24px; height: 24px; color: var(--blue); }

.service-card h3 { margin-bottom: 10px; font-size: 1.1rem; }
.service-card p  { font-size: 0.92rem; flex: 1; margin-bottom: 20px; }

.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--blue);
    font-size: 0.88rem;
    font-weight: 600;
    transition: gap var(--transition);
    margin-top: auto;
}

.service-card__link:hover { gap: 10px; }

.service-card__link svg { width: 14px; height: 14px; }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    padding: 72px 0;
    text-align: center;
}

.cta-band h2 { color: var(--white); margin-bottom: 14px; }
.cta-band p  { color: #b0c4d8; font-size: 1.05rem; max-width: 520px; margin: 0 auto 32px; }

/* ============================================================
   SERVICES PAGE
   ============================================================ */
.services-hero {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
    padding: 64px 0;
    text-align: center;
}

.services-hero h1 { color: var(--white); }
.services-hero p  { color: #b0c4d8; font-size: 1.05rem; max-width: 540px; margin: 14px auto 0; }

.services-nav {
    background: var(--white);
    border-bottom: 1px solid var(--grey-light);
    position: sticky;
    top: 68px;
    z-index: 50;
}

.services-nav__inner {
    display: flex;
    gap: 0;
    overflow-x: auto;
    scrollbar-width: none;
}

.services-nav__inner::-webkit-scrollbar { display: none; }

.services-nav__item {
    padding: 16px 22px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-light);
    white-space: nowrap;
    border-bottom: 3px solid transparent;
    transition: color var(--transition), border-color var(--transition);
    cursor: pointer;
    text-decoration: none;
    display: block;
}

.services-nav__item:hover,
.services-nav__item.active {
    color: var(--blue);
    border-bottom-color: var(--blue);
}

/* Service sections */
.service-section {
    padding: 80px 0;
    border-bottom: 1px solid var(--grey-light);
}

.service-section:last-child { border-bottom: none; }
.service-section:nth-child(even) { background: var(--off-white); }

.service-section__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.service-section:nth-child(even) .service-section__inner { direction: rtl; }
.service-section:nth-child(even) .service-section__inner > * { direction: ltr; }

.service-section__tag {
    display: inline-block;
    background: var(--blue-light);
    color: var(--blue);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 4px 12px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.service-section__content h2 { margin-bottom: 16px; }
.service-section__content p  { margin-bottom: 16px; font-size: 1rem; }

.service-section__list {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.service-section__list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.95rem;
    color: var(--text-light);
}

.service-section__list li::before {
    content: '';
    display: inline-block;
    width: 18px;
    height: 18px;
    background: var(--blue);
    border-radius: 50%;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
    background-size: 12px;
    background-position: center;
    background-repeat: no-repeat;
    flex-shrink: 0;
    margin-top: 2px;
}

.service-section__visual {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 100%);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
    position: relative;
    overflow: hidden;
}

.service-section__visual::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(30,136,229,0.07) 1px, transparent 1px),
        linear-gradient(90deg, rgba(30,136,229,0.07) 1px, transparent 1px);
    background-size: 30px 30px;
}

.service-section__visual svg {
    width: 80px;
    height: 80px;
    color: var(--blue);
    position: relative;
    z-index: 1;
    margin-bottom: 20px;
}

.service-section__visual-label {
    color: var(--white);
    font-size: 1.1rem;
    font-weight: 700;
    text-align: center;
    position: relative;
    z-index: 1;
}

.service-section__visual-sub {
    color: var(--grey);
    font-size: 0.85rem;
    text-align: center;
    position: relative;
    z-index: 1;
    margin-top: 6px;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-hero {
    background: linear-gradient(135deg, var(--navy) 0%, var(--navy-mid) 100%);
    padding: 64px 0;
    text-align: center;
}

.contact-hero h1 { color: var(--white); }
.contact-hero p  { color: #b0c4d8; font-size: 1.05rem; max-width: 500px; margin: 14px auto 0; }

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

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: 56px;
    align-items: start;
}

.contact-info h3 { margin-bottom: 24px; }

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 24px;
}

.contact-info-item__icon {
    width: 44px;
    height: 44px;
    background: var(--blue-light);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-info-item__icon svg { width: 20px; height: 20px; color: var(--blue); }

.contact-info-item h4 {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-light);
    margin-bottom: 4px;
}

.contact-info-item p { font-size: 0.95rem; color: var(--text); }

/* Contact form card */
.contact-form-card {
    background: var(--white);
    border: 1px solid var(--grey-light);
    border-radius: var(--radius-lg);
    padding: 44px 40px;
    box-shadow: var(--shadow);
}

.contact-form-card h3 { margin-bottom: 28px; }

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

.form-group { margin-bottom: 22px; }
.form-group label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 1.5px solid var(--grey-light);
    border-radius: var(--radius);
    font-family: var(--font);
    font-size: 0.95rem;
    color: var(--text);
    background: var(--white);
    transition: border-color var(--transition), box-shadow var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-color: var(--blue);
    box-shadow: 0 0 0 3px rgba(30,136,229,0.12);
}

.form-group textarea { min-height: 140px; resize: vertical; }

/* Alert messages */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 24px;
    font-size: 0.95rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert--success { background: #e8f5e9; color: #2e7d32; border: 1px solid #a5d6a7; }
.alert--error   { background: #ffebee; color: #c62828; border: 1px solid #ef9a9a; }
.alert svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--navy);
    color: #b0c4d8;
    padding: 56px 0 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 48px;
}

.footer__brand p { font-size: 0.9rem; line-height: 1.7; margin-top: 14px; max-width: 280px; }

.footer__logo-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 4px;
}

.footer__logo-icon {
    width: 34px;
    height: 34px;
    background: var(--blue);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    color: var(--white);
    font-size: 1rem;
    flex-shrink: 0;
}

.footer__logo-name {
    font-size: 0.97rem;
    font-weight: 700;
    color: var(--white);
}

.footer__col h4 {
    color: var(--white);
    font-size: 0.88rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 18px;
}

.footer__col ul { display: flex; flex-direction: column; gap: 10px; }

.footer__col ul li a {
    color: #8fa3b3;
    font-size: 0.9rem;
    transition: color var(--transition);
}

.footer__col ul li a:hover { color: var(--white); }

.footer__bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: #607080;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .hero__inner { grid-template-columns: 1fr; }
    .hero__graphic { display: none; }
    .footer__grid { grid-template-columns: 1fr 1fr; }
    .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .navbar__nav { display: none; }
    .navbar__nav.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 68px;
        left: 0;
        right: 0;
        background: var(--navy-mid);
        padding: 16px;
        gap: 4px;
        border-top: 1px solid rgba(255,255,255,0.08);
    }

    .navbar__toggle { display: flex; }

    .navbar__dropdown-menu {
        position: static;
        box-shadow: none;
        border: none;
        background: rgba(255,255,255,0.05);
        border-radius: var(--radius);
        margin-top: 4px;
    }

    .navbar__dropdown-menu a { color: #c8d6e5; border-bottom-color: rgba(255,255,255,0.07); }
    .navbar__dropdown-menu a:hover { background: rgba(30,136,229,0.15); color: #90caf9; }

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

    .service-section__inner { grid-template-columns: 1fr; }
    .service-section:nth-child(even) .service-section__inner { direction: ltr; }

    .footer__grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .contact-form-card { padding: 28px 20px; }
    .hero { padding: 64px 0 72px; }
    .section { padding: 56px 0; }
}

@media (max-width: 480px) {
    h1 { font-size: 1.8rem; }
    h2 { font-size: 1.5rem; }
    .btn { padding: 11px 20px; font-size: 0.9rem; }
    .hero__actions { flex-direction: column; }
    .hero__actions .btn { width: 100%; justify-content: center; }
}