/* === Header === */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    height: var(--header-height);
    background-color: oklch(12% 0.05 250 / 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid oklch(100% 0 0 / 0.06);
    transition: background-color var(--duration-normal);
}

.header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-md);
}

.header__logo {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text-on-dark);
    white-space: nowrap;
    cursor: pointer;
}

.header__logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.header__logo-accent {
    color: var(--color-accent);
}

/* === Navigation === */

.nav {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav__link {
    font-family: var(--font-body);
    font-weight: 500;
    font-size: var(--text-sm);
    color: var(--color-text-on-dark-muted);
    transition: color var(--duration-fast) var(--ease-out-quad);
    padding-block: var(--space-2xs);
    position: relative;
    cursor: pointer;
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-teal-500));
    transition: width var(--duration-normal) var(--ease-out-expo);
}

.nav__link:hover,
.nav__link--active {
    color: var(--color-text-on-dark);
}

.nav__link:hover::after,
.nav__link--active::after {
    width: 100%;
}

/* === Language Toggle === */

.lang-toggle {
    display: flex;
    gap: var(--space-2xs);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
}

.lang-toggle__btn {
    padding: var(--space-2xs) var(--space-xs);
    border: 1px solid oklch(100% 0 0 / 0.15);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text-on-dark-muted);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-quad);
}

.lang-toggle__btn:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.lang-toggle__btn--active {
    background-color: var(--color-accent);
    border-color: var(--color-accent);
    color: var(--color-white);
}

/* === Mobile Menu Toggle === */

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--color-text-on-dark);
    cursor: pointer;
    padding: var(--space-xs);
}

@media (max-width: 767px) {
    .nav {
        display: none;
        position: fixed;
        top: var(--header-height);
        left: 0;
        right: 0;
        flex-direction: column;
        background-color: oklch(12% 0.05 250 / 0.95);
        backdrop-filter: blur(16px);
        padding: var(--space-lg) var(--space-md);
        border-bottom: 1px solid oklch(100% 0 0 / 0.06);
    }

    .nav--open {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }
}

/* === Footer === */

.footer {
    background-color: var(--color-bg-darker);
    color: var(--color-text-on-dark);
    padding-block: var(--space-xl);
    border-top: 1px solid var(--color-border-on-dark);
}

.footer__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-lg);
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-md);
}

.footer__info {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer__company {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: var(--text-lg);
}

.footer__text {
    font-size: var(--text-sm);
    color: var(--color-text-on-dark-muted);
}

.footer__link {
    color: var(--color-accent);
    transition: color var(--duration-fast);
}

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

@media (max-width: 767px) {
    .footer__inner {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* === Service Card (Dark Theme) === */

.card {
    background: oklch(20% 0.04 250 / 0.6);
    border: 1px solid oklch(100% 0 0 / 0.06);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    transition: transform var(--duration-normal) var(--ease-out-expo),
                box-shadow var(--duration-normal) var(--ease-out-expo),
                border-color var(--duration-normal);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-teal-500));
    opacity: 0;
    transition: opacity var(--duration-normal);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: oklch(100% 0 0 / 0.1);
}

.card:hover::before {
    opacity: 1;
}

.card__icon {
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
    line-height: 1;
}

.card__icon svg {
    display: block;
}

.card__title {
    font-family: var(--font-heading);
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-xs);
    color: var(--color-text-on-dark);
}

.card__description {
    font-size: var(--text-sm);
    color: var(--color-text-on-dark-muted);
    line-height: 1.6;
}

/* Light section cards */
.section--light .card {
    background: var(--color-white);
    border-color: var(--color-border);
}

.section--light .card__title {
    color: var(--color-text-primary);
}

.section--light .card__description {
    color: var(--color-text-secondary);
}

/* === CTA Button === */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-family: var(--font-body);
    font-weight: 600;
    font-size: var(--text-base);
    padding: var(--space-sm) var(--space-xl);
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out-quad);
    text-decoration: none;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-accent), var(--color-orange-400));
    color: var(--color-white);
    box-shadow: var(--shadow-glow-orange);
}

.btn--primary:hover {
    background: linear-gradient(135deg, var(--color-accent-hover), var(--color-orange-300));
    transform: translateY(-1px);
}

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

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

/* === Hero Section === */

.hero {
    background: var(--gradient-hero);
    color: var(--color-text-on-dark);
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--header-height);
}

.hero__glow {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, oklch(65% 0.15 45 / 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 30%, oklch(55% 0.1 195 / 0.04) 0%, transparent 50%);
    pointer-events: none;
}

.hero__content {
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--space-md);
    position: relative;
    z-index: 1;
}

.hero h1,
.hero h2,
.hero h3 {
    color: var(--color-text-on-dark);
}

.hero__headline {
    font-size: var(--text-hero);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-lg);
}

.hero__headline-accent {
    background: linear-gradient(135deg, var(--color-orange-400), var(--color-orange-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__tagline {
    font-family: var(--font-mono);
    font-size: var(--text-lg);
    color: var(--color-text-on-dark-muted);
    margin-bottom: var(--space-xl);
    max-width: 600px;
}

/* === Section Header === */

.section-header {
    margin-bottom: var(--space-xl);
}

.section-header__title {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    letter-spacing: -0.02em;
}

.section-header__subtitle {
    font-size: var(--text-lg);
    max-width: 600px;
}

/* Dark section subtitle color */
.section--dark .section-header__subtitle,
.section--dark-teal .section-header__subtitle {
    color: var(--color-text-on-dark-muted);
}

.section--light .section-header__subtitle {
    color: var(--color-text-secondary);
}

/* Accent underline for section titles */
.section-header__title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-teal-500));
    margin-top: var(--space-sm);
    border-radius: 2px;
}

.text-center .section-header__title::after {
    margin-inline: auto;
}

/* === Tech Badge === */

.tech-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-md);
    background: oklch(20% 0.04 250 / 0.5);
    border: 1px solid oklch(100% 0 0 / 0.06);
    border-radius: var(--radius-md);
    text-align: center;
    transition: border-color var(--duration-fast),
                transform var(--duration-fast);
}

.tech-badge:hover {
    border-color: var(--color-teal-500);
    transform: translateY(-2px);
}

.tech-badge__name {
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-on-dark);
}

.tech-badge__category {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-teal-400);
}

/* === Service Detail Block === */

.svc-detail {
    padding: var(--space-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    background: var(--color-white);
    transition: box-shadow var(--duration-normal);
}

.svc-detail:hover {
    box-shadow: var(--shadow-md);
}

.svc-detail__header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.svc-detail__icon {
    color: var(--color-accent);
}

.svc-detail__title {
    font-size: var(--text-xl);
    font-weight: 600;
}

.svc-detail__desc {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.svc-detail__badge {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--color-teal-600);
    margin-bottom: var(--space-sm);
}

.svc-detail__list {
    display: grid;
    gap: var(--space-xs);
    padding-left: var(--space-md);
    list-style: disc;
}

.svc-detail__list li {
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    line-height: 1.6;
}

/* === Divider === */

.divider {
    width: 100%;
    height: 1px;
    background: linear-gradient(90deg, transparent, oklch(100% 0 0 / 0.08), transparent);
}