/* =====================================================
   NEXZEN VENTURES FZ-LLC — STYLES
   Industrial Blue / Steel Gray / White
   Mobile-first, CSS Grid + Flexbox
   ===================================================== */

/* ---------- THEME TOKENS ---------- */
:root {
    /* Brand palette */
    --color-primary: #0b3d91;
    --color-primary-dark: #082c69;
    --color-primary-light: #1c5dc7;
    --color-accent: #f5a623;
    --color-accent-dark: #d48817;

    --color-steel: #4a5566;
    --color-steel-light: #6b7785;
    --color-steel-dark: #2c333d;

    --color-bg: #ffffff;
    --color-bg-alt: #f4f6fa;
    --color-bg-dark: #0d1626;
    --color-surface: #ffffff;
    --color-border: #e2e6ee;

    --color-text: #1a2332;
    --color-text-muted: #5b6675;
    --color-text-inverse: #ffffff;

    --color-success: #1f9d55;
    --color-error: #d6334b;

    /* Typography */
    --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-heading: "Poppins", "Inter", system-ui, sans-serif;

    --fs-xs: 0.8125rem;
    --fs-sm: 0.9375rem;
    --fs-base: 1rem;
    --fs-md: 1.125rem;
    --fs-lg: 1.25rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.5rem;
    --fs-4xl: 3.25rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-7: 3rem;
    --space-8: 4rem;
    --space-9: 6rem;

    /* Layout */
    --container: 1200px;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-pill: 999px;

    /* Effects */
    --shadow-sm: 0 1px 2px rgba(13, 22, 38, 0.06);
    --shadow-md: 0 8px 24px rgba(13, 22, 38, 0.08);
    --shadow-lg: 0 20px 50px rgba(11, 61, 145, 0.18);
    --shadow-xl: 0 30px 80px rgba(11, 61, 145, 0.22);

    --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 480ms cubic-bezier(0.4, 0, 0.2, 1);

    --header-h: 92px;
}

/* ---------- RESET ---------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    scroll-padding-top: var(--header-h);
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: var(--fs-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

button,
input,
textarea,
select {
    font: inherit;
    color: inherit;
}

button {
    cursor: pointer;
    border: 0;
    background: transparent;
}

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

a:hover {
    color: var(--color-primary-light);
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1,
h2,
h3,
h4,
h5 {
    font-family: var(--font-heading);
    margin: 0 0 var(--space-4);
    line-height: 1.2;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

p {
    margin: 0 0 var(--space-4);
    color: var(--color-text-muted);
}

::selection {
    background: var(--color-primary);
    color: #fff;
}

/* ---------- ACCESSIBILITY ---------- */
.skip-link {
    position: absolute;
    top: -100px;
    left: var(--space-4);
    background: var(--color-primary);
    color: #fff;
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-sm);
    z-index: 1000;
    transition: top var(--transition);
}

.skip-link:focus {
    top: var(--space-4);
}

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
    border-radius: 4px;
}

/* ---------- LAYOUT ---------- */
.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--space-5);
}

.section {
    padding: var(--space-8) 0;
}

.section__header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-7);
}

.section__eyebrow {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--fs-xs);
    color: var(--color-primary);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    margin: 0 0 var(--space-3);
    padding: var(--space-1) var(--space-3);
    background: rgba(11, 61, 145, 0.08);
    border-radius: var(--radius-pill);
}

.section__title {
    font-size: var(--fs-2xl);
    font-weight: 700;
    margin-bottom: var(--space-4);
}

.section__lead {
    font-size: var(--fs-md);
    color: var(--color-text-muted);
    margin-bottom: 0;
}

.text-accent {
    background: linear-gradient(135deg, var(--color-accent), #ffd47a);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.95rem 1.85rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--fs-sm);
    letter-spacing: 0.02em;
    border-radius: var(--radius-pill);
    border: 2px solid transparent;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
    text-align: center;
    white-space: nowrap;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    color: #fff;
    box-shadow: 0 8px 22px rgba(11, 61, 145, 0.35);
}

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 28px rgba(11, 61, 145, 0.45);
    color: #fff;
}

.btn--ghost {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.4);
}

.btn--ghost:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    color: #fff;
}

.btn--block {
    width: 100%;
}

/* ---------- HEADER ---------- */
.site-header {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    border-bottom: 1px solid transparent;
    transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.97);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

.header__inner {
    height: var(--header-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-5);
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    color: var(--color-text);
    font-family: var(--font-heading);
}

.brand:hover {
    color: var(--color-primary);
}

.brand__logo {
    width: auto;
    height: 64px;
    max-width: 220px;
    object-fit: contain;
    filter: drop-shadow(0 2px 6px rgba(11, 61, 145, 0.18));
    transition: transform var(--transition), filter var(--transition);
}

.brand:hover .brand__logo {
    transform: scale(1.05);
    filter: drop-shadow(0 4px 12px rgba(11, 61, 145, 0.35));
}

.brand__text {
    display: flex;
    flex-direction: column;
    line-height: 1.05;
}

.brand__name {
    font-weight: 700;
    font-size: var(--fs-lg);
    color: inherit;
    letter-spacing: -0.01em;
}

.brand__sub {
    font-size: var(--fs-xs);
    color: var(--color-steel-light);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-weight: 600;
    margin-top: 2px;
}

@media (min-width: 768px) {
    .brand__logo {
        height: 46px;
        max-width: 280px;
    }
    .brand__name {
        font-size: var(--fs-xl);
    }
}

/* Footer logo — solid white tile so the transparent mark is fully visible on the dark navy footer */
.brand--footer .brand__logo {
    width: auto;
    height: 96px;
    max-width: 320px;
    background: #ffffff;
    border-radius: var(--radius-md);
    padding: 14px 22px;
    box-shadow:
        0 10px 28px rgba(0, 0, 0, 0.45),
        0 0 0 1px rgba(255, 255, 255, 0.18);
    filter: none;
    transition: transform var(--transition), box-shadow var(--transition);
}

.brand--footer:hover .brand__logo {
    transform: translateY(-2px) scale(1.02);
    box-shadow:
        0 14px 36px rgba(0, 0, 0, 0.55),
        0 0 0 2px rgba(245, 166, 35, 0.55);
}

.brand--footer .brand__name {
    font-size: var(--fs-xl);
}

/* ---------- NAVIGATION ---------- */
.nav {
    display: flex;
    align-items: center;
}

.nav__toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
    gap: 5px;
    z-index: 110;
    transition: background var(--transition);
}

.nav__toggle:hover {
    background: var(--color-bg-alt);
}

.nav__bar {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--color-text);
    border-radius: 2px;
    transition: transform var(--transition), opacity var(--transition);
    transform-origin: center;
}

.nav__toggle[aria-expanded="true"] .nav__bar:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__bar:nth-child(2) {
    opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__bar:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

.nav__menu {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    background: #fff;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: var(--space-6) var(--space-5);
    gap: var(--space-2);
    transform: translateX(100%);
    transition: transform var(--transition-slow);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
}

.nav__menu.is-open {
    transform: translateX(0);
}

.nav__link {
    display: block;
    padding: var(--space-4);
    color: var(--color-text);
    font-weight: 500;
    font-size: var(--fs-md);
    border-radius: var(--radius-md);
    transition: background var(--transition), color var(--transition);
}

.nav__link:hover,
.nav__link.is-active {
    background: var(--color-bg-alt);
    color: var(--color-primary);
}

.nav__link--cta {
    margin-top: var(--space-3);
    background: var(--color-primary);
    color: #fff;
    text-align: center;
    border-radius: var(--radius-pill);
}

.nav__link--cta:hover,
.nav__link--cta.is-active {
    background: var(--color-primary-dark);
    color: #fff;
}

body.nav-open {
    overflow: hidden;
}

/* ---------- HERO ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    color: #fff;
    padding-top: calc(var(--header-h) + var(--space-6));
    padding-bottom: var(--space-8);
    overflow: hidden;
    background:
        linear-gradient(135deg, rgba(8, 22, 50, 0.85) 0%, rgba(11, 61, 145, 0.78) 60%, rgba(28, 93, 199, 0.6) 100%),
        radial-gradient(ellipse at top right, rgba(245, 166, 35, 0.25), transparent 60%),
        url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1600 900'%3E%3Cdefs%3E%3ClinearGradient id='g' x1='0' x2='1' y1='0' y2='1'%3E%3Cstop offset='0' stop-color='%23142a4a'/%3E%3Cstop offset='1' stop-color='%23071226'/%3E%3C/linearGradient%3E%3C/defs%3E%3Crect width='1600' height='900' fill='url(%23g)'/%3E%3Cg fill='none' stroke='%231f3a6b' stroke-width='2' opacity='.45'%3E%3Cpath d='M0 720 L400 540 L800 660 L1200 480 L1600 600'/%3E%3Cpath d='M0 800 L500 640 L900 760 L1300 580 L1600 700'/%3E%3C/g%3E%3Cg fill='%23ffffff' opacity='.04'%3E%3Crect x='100' y='620' width='80' height='180'/%3E%3Crect x='220' y='560' width='90' height='240'/%3E%3Crect x='350' y='600' width='70' height='200'/%3E%3Crect x='1100' y='520' width='100' height='280'/%3E%3Crect x='1240' y='580' width='80' height='220'/%3E%3Crect x='1360' y='540' width='110' height='260'/%3E%3C/g%3E%3C/svg%3E") center/cover no-repeat;
}

.hero__overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, transparent 60%, rgba(8, 22, 50, 0.6) 100%),
        repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.02) 0 1px, transparent 1px 80px);
    pointer-events: none;
}

.hero__inner {
    position: relative;
    text-align: center;
    max-width: 920px;
}

.hero__eyebrow {
    display: inline-block;
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.3em;
    text-transform: uppercase;
    font-size: var(--fs-xs);
    padding: var(--space-2) var(--space-4);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-pill);
    color: rgba(255, 255, 255, 0.9);
    margin: 0 0 var(--space-5);
}

.hero__title {
    font-size: var(--fs-3xl);
    font-weight: 800;
    line-height: 1.1;
    color: #fff;
    margin-bottom: var(--space-5);
}

.hero__subtitle {
    font-size: var(--fs-md);
    max-width: 720px;
    margin: 0 auto var(--space-6);
    color: rgba(255, 255, 255, 0.85);
}

.hero__subtitle strong {
    color: #fff;
    font-weight: 600;
}

.hero__cta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    max-width: 720px;
    margin: 0 auto;
    padding: var(--space-5);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.hero__stats li {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat__value {
    font-family: var(--font-heading);
    font-size: var(--fs-2xl);
    font-weight: 800;
    color: #fff;
    display: inline-block;
}

.stat__suffix {
    font-family: var(--font-heading);
    font-size: var(--fs-2xl);
    font-weight: 800;
    color: var(--color-accent);
    margin-left: 2px;
}

.stat__label {
    display: block;
    margin-top: var(--space-1);
    font-size: var(--fs-xs);
    color: rgba(255, 255, 255, 0.7);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.hero__scroll {
    position: absolute;
    bottom: var(--space-5);
    left: 50%;
    transform: translateX(-50%);
    width: 26px;
    height: 44px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: 14px;
    display: none;
}

.hero__scroll span {
    position: absolute;
    top: 8px;
    left: 50%;
    width: 3px;
    height: 8px;
    background: #fff;
    border-radius: 2px;
    transform: translateX(-50%);
    animation: scroll-hint 1.6s infinite;
}

@keyframes scroll-hint {
    0% { opacity: 1; transform: translate(-50%, 0); }
    50% { opacity: 0.2; transform: translate(-50%, 12px); }
    100% { opacity: 0; transform: translate(-50%, 12px); }
}

/* ---------- ABOUT ---------- */
.about {
    background: var(--color-bg);
}

.about__grid {
    display: grid;
    gap: var(--space-7);
}

.features {
    display: grid;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.features li {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: border-color var(--transition), transform var(--transition);
}

.features li:hover {
    border-color: var(--color-primary-light);
    transform: translateY(-3px);
}

.feature__icon {
    flex: 0 0 48px;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    display: grid;
    place-items: center;
}

.feature__icon svg {
    width: 22px;
    height: 22px;
}

.features h3 {
    font-size: var(--fs-md);
    margin-bottom: var(--space-1);
}

.features p {
    font-size: var(--fs-sm);
    margin: 0;
}

.about__visual {
    display: grid;
    gap: var(--space-4);
    align-content: start;
}

.about__card {
    position: relative;
    padding: var(--space-5);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition);
}

.about__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.about__card::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 4px;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
}

.about__card-num {
    font-family: var(--font-heading);
    font-size: var(--fs-xl);
    font-weight: 700;
    color: var(--color-primary);
    opacity: 0.4;
}

.about__card h4 {
    font-size: var(--fs-lg);
    margin: var(--space-2) 0;
}

.about__card p {
    margin: 0;
    font-size: var(--fs-sm);
}

/* ---------- PRODUCTS ---------- */
.products {
    background: var(--color-bg-alt);
    position: relative;
}

.products::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at top left, rgba(11, 61, 145, 0.06), transparent 60%),
        radial-gradient(ellipse at bottom right, rgba(245, 166, 35, 0.06), transparent 60%);
    pointer-events: none;
}

.products > .container {
    position: relative;
}

.filters {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    margin-bottom: var(--space-7);
}

.filter {
    padding: 0.65rem 1.4rem;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--fs-sm);
    color: var(--color-steel);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-pill);
    transition: all var(--transition);
}

.filter:hover {
    color: var(--color-primary);
    border-color: var(--color-primary-light);
}

.filter.is-active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
    box-shadow: 0 6px 18px rgba(11, 61, 145, 0.3);
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
}

.product-card {
    position: relative;
    padding: var(--space-6);
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    overflow: hidden;
    isolation: isolate;
}

.product-card::before {
    content: "";
    position: absolute;
    inset: auto -20% -40% auto;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(11, 61, 145, 0.12), transparent 70%);
    z-index: -1;
    transition: transform var(--transition-slow);
}

.product-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-primary-light);
    box-shadow: var(--shadow-md);
}

.product-card:hover::before {
    transform: scale(1.4);
}

.product-card.is-hidden {
    display: none;
}

.product-card__icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(11, 61, 145, 0.1), rgba(28, 93, 199, 0.15));
    color: var(--color-primary);
    display: grid;
    place-items: center;
    margin-bottom: var(--space-4);
    transition: background var(--transition), color var(--transition);
}

.product-card:hover .product-card__icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
}

.product-card__icon svg {
    width: 28px;
    height: 28px;
}

.product-card h3 {
    font-size: var(--fs-lg);
    margin-bottom: var(--space-2);
}

.product-card p {
    font-size: var(--fs-sm);
    margin: 0 0 var(--space-4);
}

.product-card__tag {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: var(--fs-xs);
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(11, 61, 145, 0.08);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ---------- SERVICES ---------- */
.services {
    background: var(--color-bg-dark);
    color: #fff;
}

.services .section__title,
.services h3 {
    color: #fff;
}

.services .section__lead,
.services p {
    color: rgba(255, 255, 255, 0.75);
}

.services .section__eyebrow {
    background: rgba(245, 166, 35, 0.15);
    color: var(--color-accent);
}

.service-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

.service-card {
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    transition: background var(--transition), transform var(--transition), border-color var(--transition);
}

.service-card:hover {
    background: rgba(255, 255, 255, 0.07);
    border-color: var(--color-accent);
    transform: translateY(-4px);
}

.service-card__num {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: var(--fs-xl);
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: var(--space-3);
}

.service-card h3 {
    font-size: var(--fs-lg);
    margin-bottom: var(--space-3);
}

.service-card p {
    margin: 0;
    font-size: var(--fs-sm);
}

/* ---------- CONTACT ---------- */
.contact {
    background: var(--color-bg);
}

.contact__grid {
    display: grid;
    gap: var(--space-7);
}

.contact__cards {
    display: grid;
    gap: var(--space-3);
    margin-top: var(--space-6);
}

.contact__card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    transition: border-color var(--transition), transform var(--transition);
}

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

.contact__icon {
    flex: 0 0 44px;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
    color: #fff;
    display: grid;
    place-items: center;
}

.contact__icon svg {
    width: 20px;
    height: 20px;
}

.contact__card h4 {
    font-size: var(--fs-sm);
    margin: 0 0 var(--space-1);
    color: var(--color-steel);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.contact__card p {
    font-size: var(--fs-base);
    color: var(--color-text);
    margin: 0;
}

.contact__card a {
    color: var(--color-text);
}

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

/* Contact form */
.contact__form {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    box-shadow: var(--shadow-md);
    align-self: start;
}

.contact__form h3 {
    font-size: var(--fs-xl);
    margin-bottom: var(--space-5);
}

.form-row {
    display: grid;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.form-field {
    display: flex;
    flex-direction: column;
    margin-bottom: var(--space-4);
}

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

.form-field label {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: var(--fs-xs);
    margin-bottom: var(--space-2);
    color: var(--color-steel-dark);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.form-field input,
.form-field textarea {
    padding: 0.85rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg);
    transition: border-color var(--transition), box-shadow var(--transition);
    font-family: var(--font-body);
    font-size: var(--fs-base);
    color: var(--color-text);
    resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
    outline: 0;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(11, 61, 145, 0.12);
}

.form-field.has-error input,
.form-field.has-error textarea {
    border-color: var(--color-error);
    box-shadow: 0 0 0 4px rgba(214, 51, 75, 0.12);
}

.form-error {
    font-size: var(--fs-xs);
    color: var(--color-error);
    margin-top: var(--space-1);
    min-height: 1em;
}

.form-status {
    margin: var(--space-4) 0 0;
    text-align: center;
    font-size: var(--fs-sm);
    font-weight: 500;
}

.form-status.is-success {
    color: var(--color-success);
}

.form-status.is-error {
    color: var(--color-error);
}

/* ---------- FOOTER ---------- */
.site-footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding-top: var(--space-8);
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    padding-bottom: var(--space-7);
}

.footer__brand p {
    margin: var(--space-4) 0 0;
    font-size: var(--fs-sm);
    max-width: 360px;
    color: rgba(255, 255, 255, 0.65);
}

.brand--footer .brand__name {
    color: #fff;
}

.brand--footer .brand__sub {
    color: rgba(255, 255, 255, 0.6);
}

.footer__col h4 {
    color: #fff;
    font-size: var(--fs-sm);
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: var(--space-4);
}

.footer__col ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.footer__col a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--fs-sm);
    transition: color var(--transition);
}

.footer__col a:hover {
    color: var(--color-accent);
}

.footer__col li {
    font-size: var(--fs-sm);
}

.footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding: var(--space-4) 0;
}

.footer__bottom-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    text-align: center;
}

.footer__bottom p {
    margin: 0;
    color: rgba(255, 255, 255, 0.55);
    font-size: var(--fs-xs);
}

.footer__bottom a {
    color: var(--color-accent);
}

/* ---------- BACK TO TOP ---------- */
.back-to-top {
    position: fixed;
    right: var(--space-5);
    bottom: var(--space-5);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-primary);
    color: #fff;
    display: grid;
    place-items: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transform: translateY(20px) scale(0.85);
    pointer-events: none;
    transition: opacity var(--transition), transform var(--transition), background var(--transition);
    z-index: 90;
}

.back-to-top.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-3px) scale(1);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* ---------- REVEAL ANIMATION ---------- */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 700ms ease, transform 700ms ease;
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---------- BREAKPOINTS ---------- */

/* Tablet (768px - 1024px) */
@media (min-width: 768px) {
    .container {
        padding-inline: var(--space-6);
    }

    .section {
        padding: var(--space-9) 0;
    }

    .hero__title {
        font-size: var(--fs-4xl);
    }

    .hero__subtitle {
        font-size: var(--fs-lg);
    }

    .hero__stats {
        grid-template-columns: repeat(4, 1fr);
    }

    .hero__scroll {
        display: block;
    }

    .section__title {
        font-size: var(--fs-3xl);
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-6);
    }

    .service-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-5);
    }

    .form-row {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-5);
    }

    .footer__grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
        gap: var(--space-7);
    }

    .footer__bottom-inner {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }

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

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

    .about__card--3 {
        grid-column: 1 / -1;
    }
}

/* Desktop (>1024px) */
@media (min-width: 1024px) {
    .nav__toggle {
        display: none;
    }

    .nav__menu {
        position: static;
        flex-direction: row;
        background: transparent;
        padding: 0;
        gap: var(--space-1);
        transform: none;
        box-shadow: none;
        overflow: visible;
        align-items: center;
    }

    .nav__link {
        padding: var(--space-2) var(--space-4);
        font-size: var(--fs-sm);
        position: relative;
    }

    .nav__link:not(.nav__link--cta)::after {
        content: "";
        position: absolute;
        bottom: 4px;
        left: 50%;
        transform: translateX(-50%) scaleX(0);
        height: 2px;
        width: 24px;
        background: var(--color-primary);
        border-radius: 2px;
        transition: transform var(--transition);
    }

    .nav__link:not(.nav__link--cta):hover::after,
    .nav__link:not(.nav__link--cta).is-active::after {
        transform: translateX(-50%) scaleX(1);
    }

    .nav__link:hover,
    .nav__link.is-active {
        background: transparent;
    }

    .nav__link--cta {
        margin-top: 0;
        margin-left: var(--space-3);
        padding: 0.65rem 1.4rem;
    }

    .hero__title {
        font-size: 4.25rem;
    }

    .product-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .service-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .about__grid {
        grid-template-columns: 1.2fr 1fr;
        align-items: center;
        gap: var(--space-8);
    }

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

    .contact__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }

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

@media (min-width: 1280px) {
    .product-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}