/* ============================================
   APLab — Professional Wind Energy Website
   Colors: #0B5394 (primary), #38761D (green),
           #6FA8DC (accent), #F4F8FB (light bg)
   ============================================ */

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

:root {
    --color-primary:    #0B5394;
    --color-primary-dark: #083d6e;
    --color-green:      #38761D;
    --color-green-dark: #2a5916;
    --color-accent:     #6FA8DC;
    --color-accent-light: #a8cceb;
    --color-bg:         #FFFFFF;
    --color-bg-alt:     #F4F8FB;
    --color-bg-dark:    #0a1628;
    --color-text:       #1a2332;
    --color-text-light: #4a5568;
    --color-text-muted: #718096;
    --color-border:     #e2e8f0;
    --color-error:      #c0392b;
    --color-success:    #38761D;
    --font-family:      -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --container-max:    1140px;
    --header-height:    72px;
    --radius:           8px;
    --radius-lg:        12px;
    --shadow-sm:        0 1px 3px rgba(0,0,0,0.08);
    --shadow-md:        0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg:        0 8px 30px rgba(0,0,0,0.12);
    --transition:       0.2s ease;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

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

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

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

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

ul, ol {
    list-style: none;
}

/* --- Container --- */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Section Title --- */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

/* ============================================
   Header
   ============================================ */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: box-shadow var(--transition);
}

.site-header.scrolled {
    box-shadow: var(--shadow-md);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    z-index: 1001;
}

.logo-svg {
    height: 36px;
    width: auto;
}

/* Nav */
.nav__list {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav__link {
    display: inline-block;
    padding: 8px 16px;
    font-size: 0.938rem;
    font-weight: 500;
    color: var(--color-text);
    border-radius: var(--radius);
    transition: all var(--transition);
}

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

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

.nav__link--lang {
    color: var(--color-primary);
    border: 1.5px solid var(--color-primary);
    font-weight: 600;
    font-size: 0.85rem;
    padding: 6px 14px;
    border-radius: 20px;
    margin-left: 8px;
}

.nav__link--lang:hover {
    background: var(--color-primary);
    color: #fff;
}

/* Hamburger */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.nav-toggle__bar {
    display: block;
    width: 24px;
    height: 2.5px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
    opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============================================
   Hero Section (Home)
   ============================================ */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, rgba(11,83,148,0.85) 0%, rgba(8,61,110,0.9) 40%, rgba(10,79,140,0.85) 70%, rgba(56,118,29,0.8) 100%),
                url('/assets/images/hero-bg.jpg') center/cover no-repeat;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(111, 168, 220, 0.15) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(56, 118, 29, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.hero__content {
    max-width: 680px;
    position: relative;
    z-index: 1;
}

.hero__title {
    font-size: 3.25rem;
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.hero__subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    opacity: 0.9;
    margin-bottom: 2.5rem;
    max-width: 560px;
}

/* --- Page Hero (Patent / Contact) --- */
.page-hero {
    padding: 140px 0 60px;
    background: linear-gradient(135deg, #0B5394 0%, #083d6e 100%);
    color: #fff;
}

.page-hero--services {
    background: linear-gradient(135deg, rgba(11,83,148,0.88) 0%, rgba(8,61,110,0.92) 100%),
                url('/assets/images/services-page-hero.jpg') center/cover no-repeat;
}

.page-hero__title {
    font-size: 2.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.15;
}

.page-hero__intro {
    font-size: 1.125rem;
    line-height: 1.7;
    opacity: 0.9;
    max-width: 640px;
}

.page-hero--contact {
    text-align: center;
}

.page-hero--contact .page-hero__intro {
    margin: 0 auto;
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-family);
    font-weight: 600;
    font-size: 0.938rem;
    padding: 12px 28px;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    line-height: 1.4;
}

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

.btn--primary:hover {
    background: var(--color-primary-dark);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

.btn--secondary:hover {
    background: var(--color-primary);
    color: #fff;
    transform: translateY(-1px);
}

.btn--lg {
    padding: 14px 36px;
    font-size: 1rem;
}

.btn--full {
    width: 100%;
    justify-content: center;
}

.hero .btn--primary {
    background: #fff;
    color: var(--color-primary);
}

.hero .btn--primary:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary-dark);
}

.btn__icon {
    flex-shrink: 0;
}

/* ============================================
   Value Propositions (Home)
   ============================================ */
.values {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.values .section-title {
    text-align: center;
    margin-bottom: 3rem;
}

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

.value-card {
    background: #fff;
    padding: 36px 28px;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid var(--color-border);
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.value-card__icon {
    margin-bottom: 1.25rem;
}

.value-card__title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.value-card__text {
    font-size: 0.938rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* ============================================
   About Section (Home)
   ============================================ */
.about {
    padding: 80px 0;
}

.about__content {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.about__text {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

/* ============================================
   Services Page
   ============================================ */
.services-grid-section {
    padding: 80px 0;
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 2rem;
}

.service-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--card-color, var(--color-primary));
    transition: all 0.3s ease;
    overflow: hidden;
}

.service-card__image {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.service-card__body {
    padding: 24px 28px 28px;
}

.service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-top-color: var(--card-color, var(--color-primary));
}

.service-card__header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 0.75rem;
}

.service-card__icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--card-color, var(--color-primary)) 8%, transparent);
    color: var(--card-color, var(--color-primary));
}

.service-card__title {
    font-size: 1.0625rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.4;
    padding-top: 4px;
}

.service-card__text {
    font-size: 0.875rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

/* --- Services Featured (Wind Turbine) --- */
.services-featured {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.services-featured__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.services-featured__media {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: #000;
}

.services-featured__video {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
}

.services-featured__label {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-green);
    margin-bottom: 0.75rem;
}

.services-featured__heading {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
}

.services-featured__text {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.75;
    margin-bottom: 2rem;
}

.video-wrapper {
    margin: 1.5rem auto 0;
    max-width: 760px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: #000;
}

.video-player {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* --- Services CTA --- */
.services-cta-section {
    padding: 80px 0;
}

.services-cta-block {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    box-shadow: var(--shadow-sm);
}

.services-cta-block__title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 1.5rem;
    line-height: 1.4;
}

/* ============================================
   Examples (Home)
   ============================================ */
.examples {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.examples .section-title {
    text-align: center;
    margin-bottom: 2rem;
}

.examples__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 2rem;
}

.example-card {
    background: #fff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
    overflow: hidden;
}

.example-card__image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.example-card__body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.example-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.example-card__icon {
    flex-shrink: 0;
}

.example-card__title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-primary);
    line-height: 1.3;
}

.example-card__text {
    font-size: 0.938rem;
    color: var(--color-text-light);
    line-height: 1.65;
}

.examples__cta {
    margin-top: 3rem;
    text-align: center;
}

.about__text--highlight {
    font-weight: 500;
    color: var(--color-primary);
    margin-top: 0.5rem;
}

/* ============================================
   Contact Page
   ============================================ */
.contact-form-section {
    padding: 60px 0 80px;
}

.contact-form-wrapper {
    max-width: 640px;
    margin: 0 auto;
}

/* Alerts */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    border-radius: var(--radius);
    margin-bottom: 2rem;
}

.alert svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.alert--success {
    background: #f0f9f0;
    border: 1px solid #c6e6c6;
    color: var(--color-success);
}

.alert--error {
    background: #fdf2f2;
    border: 1px solid #f5c6c6;
    color: var(--color-error);
}

.alert ul {
    list-style: disc;
    padding-left: 1rem;
}

.alert li {
    margin-bottom: 4px;
}

/* Form */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 0.938rem;
    font-weight: 500;
    color: var(--color-text);
}

.required {
    color: var(--color-error);
}

.form-input {
    font-family: var(--font-family);
    font-size: 0.938rem;
    padding: 12px 16px;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius);
    background: #fff;
    color: var(--color-text);
    transition: border-color var(--transition), box-shadow var(--transition);
    width: 100%;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(11, 83, 148, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

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

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

.form-required-note {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Honeypot — visually hidden */
.form-honey {
    position: absolute;
    left: -9999px;
    opacity: 0;
    height: 0;
    overflow: hidden;
}

.form-input.invalid {
    border-color: var(--color-error);
}

/* ============================================
   404 Page
   ============================================ */
.error-page {
    padding: 160px 0 100px;
    text-align: center;
    min-height: 60vh;
    display: flex;
    align-items: center;
}

.error-page__content {
    width: 100%;
}

.error-page__code {
    font-size: 8rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    opacity: 0.3;
}

.error-page__title {
    font-size: 2rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.error-page__text {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

/* ============================================
   Footer
   ============================================ */
.site-footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 0;
}

.footer__inner {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
    height: 28px;
    width: auto;
    margin-bottom: 12px;
}

.footer__tagline {
    font-size: 0.875rem;
    opacity: 0.7;
    max-width: 280px;
}

.footer__nav ul {
    display: flex;
    gap: 24px;
}

.footer__nav a {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.938rem;
    transition: color var(--transition);
}

.footer__nav a:hover {
    color: #fff;
}

.footer__bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 0.85rem;
    opacity: 0.5;
}

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

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

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: #fff;
        box-shadow: var(--shadow-lg);
        padding: 100px 32px 40px;
        transition: right 0.3s ease;
        z-index: 999;
    }

    .nav.is-open {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        align-items: flex-start;
        gap: 4px;
    }

    .nav__link {
        display: block;
        width: 100%;
        padding: 12px 16px;
        font-size: 1rem;
    }

    .nav__link--lang {
        margin-left: 0;
        margin-top: 16px;
        text-align: center;
        display: block;
        width: auto;
    }

    /* Hero */
    .hero {
        padding: 120px 0 70px;
    }

    .hero__title {
        font-size: 2.25rem;
    }

    .hero__subtitle {
        font-size: 1.0625rem;
    }

    /* Page Hero */
    .page-hero {
        padding: 110px 0 40px;
    }

    .page-hero__title {
        font-size: 2rem;
    }

    /* Values */
    .values {
        padding: 60px 0;
    }

    .values__grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    /* Services */
    .services__grid {
        grid-template-columns: 1fr;
    }

    /* Examples */
    .examples__grid {
        grid-template-columns: 1fr;
    }

    /* Featured */
    .services-featured__inner {
        grid-template-columns: 1fr;
    }

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

    /* Section title */
    .section-title {
        font-size: 1.625rem;
    }

    /* Footer */
    .footer__inner {
        flex-direction: column;
        gap: 32px;
    }

    .footer__nav ul {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 1.875rem;
    }

    .btn--lg {
        padding: 12px 24px;
        font-size: 0.938rem;
    }

    .error-page__code {
        font-size: 5rem;
    }
}

/* ============================================
   Technology Page (Wind Turbine Blades)
   ============================================ */

/* --- Tech Hero --- */
.tech-hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, rgba(11,83,148,0.9) 0%, rgba(8,61,110,0.92) 50%, rgba(56,118,29,0.85) 100%),
                url('/assets/images/hero-bg.jpg') center/cover no-repeat;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.tech-hero__content {
    max-width: 680px;
    position: relative;
    z-index: 1;
}

.tech-hero__badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(4px);
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: 20px;
    padding: 6px 18px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 1.25rem;
}

.tech-hero__title {
    font-size: 3.25rem;
    font-weight: 700;
    line-height: 1.12;
    margin-bottom: 1.25rem;
    letter-spacing: -0.02em;
}

.tech-hero__subtitle {
    font-size: 1.2rem;
    line-height: 1.65;
    opacity: 0.9;
    margin-bottom: 2.5rem;
    max-width: 560px;
}

.tech-hero .btn--primary {
    background: #fff;
    color: var(--color-primary);
}

.tech-hero .btn--primary:hover {
    background: var(--color-bg-alt);
    color: var(--color-primary-dark);
}

/* --- Tech Story --- */
.tech-story {
    padding: 80px 0;
}

.tech-story__inner {
    display: grid;
    grid-template-columns: 1.4fr 1fr;
    gap: 60px;
    align-items: center;
}

.tech-story__paragraph {
    font-size: 1.0625rem;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 1.25rem;
}

.tech-story__paragraph--highlight {
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 0;
}

.tech-story__visual {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.tech-stat {
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: 24px 28px;
    display: flex;
    align-items: baseline;
    gap: 16px;
}

.tech-stat__number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
    flex-shrink: 0;
}

.tech-stat__label {
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-weight: 500;
}

/* --- Tech Advantages --- */
.tech-advantages {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.tech-adv__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.tech-adv-card {
    background: #fff;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    border-top: 3px solid var(--adv-color, var(--color-primary));
    padding: 32px 28px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.tech-adv-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.tech-adv-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    background: color-mix(in srgb, var(--adv-color, var(--color-primary)) 8%, transparent);
    color: var(--adv-color, var(--color-primary));
    margin-bottom: 1rem;
}

.tech-adv-card__title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.75rem;
}

.tech-adv-card__list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.tech-adv-card__list li {
    font-size: 0.9rem;
    color: var(--color-text-light);
    line-height: 1.6;
    padding-left: 20px;
    position: relative;
}

.tech-adv-card__list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--adv-color, var(--color-primary));
    opacity: 0.4;
}

/* --- Tech Video --- */
.tech-video {
    padding: 60px 0 80px;
}

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

/* --- Tech Progress / Timeline --- */
.tech-progress {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

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

.tech-timeline {
    margin-top: 1.5rem;
    position: relative;
    padding-left: 28px;
}

.tech-timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: var(--color-primary);
    opacity: 0.2;
    border-radius: 1px;
}

.tech-timeline--next::before {
    background: var(--color-green);
}

.tech-timeline__item {
    position: relative;
    padding-bottom: 20px;
}

.tech-timeline__item:last-child {
    padding-bottom: 0;
}

.tech-timeline__dot {
    position: absolute;
    left: -28px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-primary);
    border: 3px solid var(--color-bg-alt);
    box-shadow: 0 0 0 2px var(--color-primary);
}

.tech-timeline--next .tech-timeline__dot {
    background: var(--color-green);
    box-shadow: 0 0 0 2px var(--color-green);
}

.tech-timeline__text {
    font-size: 0.95rem;
    color: var(--color-text-light);
    line-height: 1.6;
}

/* --- Tech CTA --- */
.tech-cta-section {
    padding: 80px 0;
}

/* --- Tech responsive --- */
@media (max-width: 1024px) {
    .tech-adv__grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .tech-hero {
        padding: 120px 0 70px;
    }

    .tech-hero__title {
        font-size: 2.25rem;
    }

    .tech-hero__subtitle {
        font-size: 1.0625rem;
    }

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

    .tech-story__visual {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 12px;
    }

    .tech-stat {
        flex: 1;
        min-width: 140px;
        flex-direction: column;
        gap: 4px;
        text-align: center;
        padding: 20px 16px;
    }

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

/* --- Overlay for mobile nav --- */
.nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 998;
}

.nav-overlay.is-active {
    display: block;
}

/* --- Animations --- */
@media (prefers-reduced-motion: no-preference) {
    .value-card,
    .service-card,
    .example-card,
    .tech-adv-card {
        opacity: 0;
        transform: translateY(20px);
        animation: fadeInUp 0.5s ease forwards;
    }

    .value-card:nth-child(2) { animation-delay: 0.1s; }
    .value-card:nth-child(3) { animation-delay: 0.2s; }

    .service-card:nth-child(2) { animation-delay: 0.1s; }
    .service-card:nth-child(3) { animation-delay: 0.15s; }
    .service-card:nth-child(4) { animation-delay: 0.2s; }
    .service-card:nth-child(5) { animation-delay: 0.25s; }
    .service-card:nth-child(6) { animation-delay: 0.3s; }

    .example-card:nth-child(2) { animation-delay: 0.1s; }
    .example-card:nth-child(3) { animation-delay: 0.2s; }

    .tech-adv-card:nth-child(2) { animation-delay: 0.1s; }
    .tech-adv-card:nth-child(3) { animation-delay: 0.2s; }
    .tech-adv-card:nth-child(4) { animation-delay: 0.3s; }
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}