/* ═══════════════════════════════════════════════════════
   NETSA – Design System & Styles
   Trust & Authority | Industrial Grey + Safety Orange
   Typography: Lexend (headings) + Source Sans 3 (body)
   ═══════════════════════════════════════════════════════ */

/* ─── CSS Variables (Design Tokens) ─── */
:root {
    /* Colors */
    --color-primary: #004B87;
    --color-primary-dark: #00335c;
    --color-primary-light: #4d86b5;
    --color-secondary: #007CC0;
    --color-cta: #0056a3;
    --color-cta-hover: #003d75;
    --color-cta-light: #e6f2fa;
    --color-background: #F8FAFC;
    --color-background-alt: #F1F5F9;
    --color-surface: #FFFFFF;
    --color-text: #334155;
    --color-text-light: #64748B;
    --color-text-muted: #94A3B8;
    --color-heading: #0f172a;
    --color-border: #E2E8F0;
    --color-border-light: #F1F5F9;
    --color-success: #16A34A;
    --color-error: #DC2626;
    --color-dark: #0f172a;
    --color-dark-lighter: #1e293b;

    /* Typography */
    --font-heading: 'Lexend', sans-serif;
    --font-body: 'Source Sans 3', sans-serif;

    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 5rem;
    --space-5xl: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.05);

    /* Borders */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Layout */
    --container-max: 1200px;
    --header-height: 72px;
}

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

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

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

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
    color: var(--color-cta);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--color-heading);
    line-height: 1.3;
    font-weight: 600;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: clamp(1.25rem, 2.5vw, 1.5rem); }
h4 { font-size: 1.125rem; }

ul, ol { list-style: none; }

/* ─── Skip Link (Accessibility) ─── */
.skip-link {
    position: absolute;
    top: -100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-cta);
    color: #fff;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    z-index: 10000;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: var(--space-md);
    color: #fff;
}

/* ─── Container ─── */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* ─── Buttons ─── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.75rem;
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 600;
    line-height: 1;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn:focus-visible {
    outline: 3px solid var(--color-cta);
    outline-offset: 2px;
}

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

.btn--primary:hover {
    background: var(--color-cta-hover);
    border-color: var(--color-cta-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
}

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

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

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

.btn--outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
    transform: translateY(-1px);
}

.btn--lg {
    padding: 1rem 2.25rem;
    font-size: 1rem;
}

.btn--sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

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

/* ─── Top Bar ─── */
.top-bar {
    background: var(--color-dark);
    color: #fff;
    font-size: 0.8125rem;
    padding: 0.5rem 0;
}

.top-bar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.top-bar__contact {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.top-bar__link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.top-bar__link:hover {
    color: #fff;
}

.top-bar__social {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.top-bar__social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.top-bar__social-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

/* ─── Header ─── */
.header {
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
}

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

.header__logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    cursor: pointer;
}

.header__logo-image {
    max-height: 48px;
    width: auto;
    object-fit: contain;
}

.footer__logo {
    display: flex;
    text-decoration: none;
    cursor: pointer;
    margin-bottom: 1rem;
}

.footer__logo-image {
    max-height: 56px;
    width: auto;
    object-fit: contain;
}

/* Desktop Navigation */
.header__nav {
    display: none;
}

.header__menu {
    display: flex;
    align-items: center;
    gap: 0;
}

.header__link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0.5rem 1rem;
    font-family: var(--font-heading);
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-text);
    transition: color var(--transition-fast);
    position: relative;
    cursor: pointer;
}

.header__link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 1rem;
    right: 1rem;
    height: 2px;
    background: var(--color-cta);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.header__link:hover,
.header__link.active {
    color: var(--color-cta);
}

.header__link.active::after,
.header__link:hover::after {
    transform: scaleX(1);
}

/* Dropdown */
.header__dropdown {
    position: relative;
}

.header__dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    background: var(--color-surface);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--color-border);
    padding: var(--space-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all var(--transition-base);
    z-index: 100;
}

.header__dropdown:hover .header__dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.header__dropdown-menu li a {
    display: block;
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    color: var(--color-text);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.header__dropdown-menu li a:hover {
    background: var(--color-background);
    color: var(--color-cta);
    padding-left: 1.5rem;
}

/* Header Actions */
.header__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.header__cta {
    display: none;
}

/* Mobile Toggle */
.header__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 36px;
    height: 36px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.header__toggle-bar {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-heading);
    border-radius: 2px;
    transition: all var(--transition-base);
}

.header__toggle.is-active .header__toggle-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.header__toggle.is-active .header__toggle-bar:nth-child(2) {
    opacity: 0;
}

.header__toggle.is-active .header__toggle-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation */
.mobile-nav {
    background: var(--color-surface);
    border-top: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    z-index: 999;
    max-height: calc(100vh - var(--header-height) - 40px);
    overflow-y: auto;
}

.mobile-nav[hidden] {
    display: none;
}

.mobile-nav__menu {
    padding: var(--space-md) var(--space-lg) var(--space-lg);
}

.mobile-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.875rem 0;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border-light);
    transition: color var(--transition-fast);
    background: none;
    border-left: none;
    border-right: none;
    border-top: none;
    cursor: pointer;
    text-align: left;
}

.mobile-nav__link:hover,
.mobile-nav__link.active {
    color: var(--color-cta);
}

.mobile-nav__expand-btn svg {
    transition: transform var(--transition-base);
}

.mobile-nav__expand-btn[aria-expanded="true"] svg {
    transform: rotate(180deg);
}

.mobile-nav__submenu {
    padding-left: var(--space-md);
}

.mobile-nav__submenu[hidden] {
    display: none;
}

.mobile-nav__submenu li a {
    display: block;
    padding: 0.625rem 0;
    font-size: 0.9375rem;
    color: var(--color-text-light);
    border-bottom: 1px solid var(--color-border-light);
    cursor: pointer;
}

.mobile-nav__submenu li a:hover {
    color: var(--color-cta);
}

.mobile-nav__cta {
    margin-top: var(--space-md);
    width: 100%;
    justify-content: center;
}

/* ─── Page Header / Hero ─── */
.hero {
    position: relative;
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
    color: #fff;
    padding: var(--space-5xl) 0;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.hero__inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    background: rgba(249, 115, 22, 0.15);
    color: var(--color-cta);
    padding: 0.375rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
    font-family: var(--font-heading);
    margin-bottom: var(--space-md);
    border: 1px solid rgba(249, 115, 22, 0.25);
}

.hero__title {
    font-size: clamp(2.25rem, 6vw, 3.5rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.15;
    margin-bottom: var(--space-md);
}

.hero__title span {
    color: var(--color-cta);
}

.hero__subtitle {
    font-size: clamp(1.0625rem, 2.5vw, 1.25rem);
    color: rgba(255, 255, 255, 0.75);
    max-width: 540px;
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.hero__stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.hero__stat {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    backdrop-filter: blur(4px);
}

.hero__stat-number {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-cta);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.hero__stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

/* Page Hero (inner pages) */
.page-hero {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
    color: #fff;
    padding: var(--space-3xl) 0 var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.page-hero__inner {
    position: relative;
    z-index: 1;
}

.page-hero__title {
    color: #fff;
    margin-bottom: var(--space-sm);
}

.page-hero__subtitle {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.0625rem;
    max-width: 600px;
}

/* ─── Breadcrumb ─── */
.breadcrumb {
    padding: var(--space-md) 0;
    margin-bottom: var(--space-md);
}

.breadcrumb ol {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.25rem;
    font-size: 0.875rem;
}

.breadcrumb li {
    display: inline-flex;
    align-items: center;
    color: var(--color-text-muted);
}

.breadcrumb li:not(:last-child)::after {
    content: '/';
    margin-left: 0.5rem;
    color: var(--color-text-muted);
}

.breadcrumb li a {
    color: var(--color-text-light);
    cursor: pointer;
}

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

/* ─── Sections ─── */
.section {
    padding: var(--space-4xl) 0;
}

.section--alt {
    background: var(--color-background-alt);
}

.section--dark {
    background: var(--color-dark);
    color: #fff;
}

.section__header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto var(--space-2xl);
}

.section__label {
    display: inline-block;
    font-family: var(--font-heading);
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--color-cta);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-sm);
}

.section__title {
    margin-bottom: var(--space-md);
}

.section__subtitle {
    color: var(--color-text-light);
    font-size: 1.0625rem;
    line-height: 1.7;
}

/* ─── Cards ─── */
.card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    overflow: hidden;
    transition: all var(--transition-base);
    cursor: pointer;
}

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

.card__image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    background: var(--color-background-alt);
}

.card__body {
    padding: var(--space-lg);
}

.card__category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-cta);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
}

.card__title {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.card__text {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

.card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-cta);
    cursor: pointer;
    transition: gap var(--transition-fast);
}

.card__link:hover {
    color: var(--color-cta-hover);
    gap: 10px;
}

/* ─── Grid Layouts ─── */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

/* ─── Service Cards (Icon-based) ─── */
.service-card {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    cursor: pointer;
    text-align: center;
}

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

.service-card__icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--color-cta-light);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    color: var(--color-cta);
    transition: all var(--transition-base);
}

.service-card:hover .service-card__icon {
    background: var(--color-cta);
    color: #fff;
}

.service-card__title {
    font-size: 1.125rem;
    margin-bottom: var(--space-sm);
}

.service-card__text {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin-bottom: var(--space-md);
}

/* ─── Stats / Trust Strip ─── */
.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
}

.stat {
    text-align: center;
    padding: var(--space-lg);
}

.stat__number {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    color: var(--color-cta);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat__label {
    font-size: 0.9375rem;
    color: var(--color-text-light);
    font-weight: 500;
}

/* ─── Trust / Why NETSA Section ─── */
.trust-item {
    display: flex;
    gap: var(--space-md);
    padding: var(--space-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition-base);
}

.trust-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-cta);
}

.trust-item__icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-cta-light);
    border-radius: var(--radius-md);
    color: var(--color-cta);
}

.trust-item__content {
    flex: 1;
}

.trust-item__title {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.trust-item__text {
    color: var(--color-text-light);
    font-size: 0.9375rem;
    line-height: 1.5;
}

/* ─── CTA Band ─── */
.cta-band {
    background: linear-gradient(135deg, var(--color-dark) 0%, var(--color-dark-lighter) 100%);
    color: #fff;
    padding: var(--space-3xl) 0;
    position: relative;
    overflow: hidden;
}

.cta-band::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(249, 115, 22, 0.15) 0%, transparent 60%);
    border-radius: 50%;
    pointer-events: none;
}

.cta-band__inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--space-xl);
}

.cta-band__title {
    color: #fff;
    font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-band__text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 1.0625rem;
    max-width: 500px;
}

.cta-band__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

/* ─── Footer ─── */
.footer {
    background: var(--color-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--space-3xl) 0 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-xl);
    padding-bottom: var(--space-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
    display: inline-block;
    margin-bottom: var(--space-md);
    text-decoration: none;
    cursor: pointer;
}

.footer__logo-text {
    font-family: var(--font-heading);
    font-size: 1.75rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.05em;
}

.footer__desc {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: var(--space-lg);
}

.footer__social {
    display: flex;
    gap: var(--space-sm);
}

.footer__social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.footer__social-link:hover {
    background: var(--color-cta);
    color: #fff;
}

.footer__heading {
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: var(--space-md);
}

.footer__links li {
    margin-bottom: 0.5rem;
}

.footer__links li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9375rem;
    transition: color var(--transition-fast);
    cursor: pointer;
}

.footer__links li a:hover {
    color: var(--color-cta);
}

.footer__contact li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    margin-bottom: 0.75rem;
    font-size: 0.9375rem;
}

.footer__contact li svg {
    flex-shrink: 0;
    margin-top: 3px;
    color: var(--color-cta);
}

.footer__contact li a {
    color: rgba(255, 255, 255, 0.6);
    transition: color var(--transition-fast);
    cursor: pointer;
}

.footer__contact li a:hover {
    color: var(--color-cta);
}

.footer__bottom {
    padding: var(--space-lg) 0;
    text-align: center;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.4);
}

/* ─── FAQ Accordion ─── */
.accordion {}

.accordion__item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-md);
    overflow: hidden;
    transition: border-color var(--transition-fast);
}

.accordion__item.is-open {
    border-color: var(--color-cta);
}

.accordion__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-lg);
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-heading);
    text-align: left;
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.accordion__header:hover {
    color: var(--color-cta);
}

.accordion__icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    margin-left: var(--space-md);
    transition: transform var(--transition-base);
    color: var(--color-text-muted);
}

.accordion__item.is-open .accordion__icon {
    transform: rotate(180deg);
    color: var(--color-cta);
}

.accordion__body {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-slow);
}

.accordion__content {
    padding: 0 var(--space-lg) var(--space-lg);
    color: var(--color-text-light);
    line-height: 1.7;
    font-size: 0.9375rem;
}

/* ─── Form Styles ─── */
.form {}

.form__group {
    margin-bottom: var(--space-lg);
}

.form__label {
    display: block;
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-heading);
    margin-bottom: 0.375rem;
}

.form__input,
.form__select,
.form__textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(100, 116, 139, 0.15);
}

.form__input::placeholder,
.form__textarea::placeholder {
    color: var(--color-text-muted);
}

.form__textarea {
    resize: vertical;
    min-height: 140px;
}

.form__select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748B' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form__error {
    font-size: 0.8125rem;
    color: var(--color-error);
    margin-top: 0.25rem;
}

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

/* Alert / Feedback Messages */
.alert {
    padding: var(--space-md) var(--space-lg);
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    margin-bottom: var(--space-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
}

.alert--success {
    background: #F0FDF4;
    color: #166534;
    border: 1px solid #BBF7D0;
}

.alert--error {
    background: #FEF2F2;
    color: #991B1B;
    border: 1px solid #FECACA;
}

/* ─── About Page Specific ─── */
.about-intro {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

.about-intro__image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-background-alt);
    aspect-ratio: 16 / 10;
}

.about-intro__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.about-intro__content h2 {
    margin-bottom: var(--space-md);
}

.about-intro__content p {
    color: var(--color-text-light);
    margin-bottom: var(--space-md);
    line-height: 1.8;
}

/* ─── Detail Page Layouts ─── */
.detail {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

.detail__image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-background-alt);
    aspect-ratio: 16 / 10;
}

.detail__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.detail__content h2 {
    margin-bottom: var(--space-md);
}

.detail__content p {
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: var(--space-md);
}

.detail__features {
    list-style: none;
    padding: 0;
}

.detail__features li {
    display: flex;
    align-items: flex-start;
    gap: var(--space-sm);
    padding: 0.5rem 0;
    color: var(--color-text);
    font-size: 0.9375rem;
}

.detail__features li svg {
    flex-shrink: 0;
    color: var(--color-success);
    margin-top: 3px;
}

.detail__sidebar {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
}

.detail__sidebar h3 {
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--color-border);
}

/* ─── Tags / Badges ─── */
.tag {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--color-background-alt);
    color: var(--color-text-light);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 500;
    margin: 0.125rem;
}

.tag--primary {
    background: var(--color-cta-light);
    color: var(--color-cta);
}

/* ─── Contact Page ─── */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-2xl);
}

.contact-info__item {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.contact-info__icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-cta-light);
    border-radius: var(--radius-md);
    color: var(--color-cta);
}

.contact-info__content h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-info__content p,
.contact-info__content a {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

.contact-info__content a:hover {
    color: var(--color-cta);
}

.contact-map {
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: var(--space-lg);
    border: 1px solid var(--color-border);
}

.contact-map iframe {
    width: 100%;
    height: 300px;
    border: none;
}

/* ─── Placeholder Image ─── */
.placeholder-image {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-background-alt) 0%, var(--color-border) 100%);
    color: var(--color-text-muted);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 500;
    min-height: 200px;
}

/* ─── Process Steps ─── */
.process {
    counter-reset: step;
}

.process__item {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    counter-increment: step;
}

.process__number {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--color-cta);
    color: #fff;
    border-radius: var(--radius-full);
    font-family: var(--font-heading);
    font-size: 0.875rem;
    font-weight: 700;
}

.process__content h4 {
    margin-bottom: 0.25rem;
}

.process__content p {
    color: var(--color-text-light);
    font-size: 0.9375rem;
}

/* ─── Project Detail Meta ─── */
.project-meta {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.project-meta__item {
    padding: var(--space-md);
    background: var(--color-background-alt);
    border-radius: var(--radius-md);
}

.project-meta__label {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 0.125rem;
}

.project-meta__value {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-heading);
}

/* ─── 404 Page ─── */
.error-page {
    text-align: center;
    padding: var(--space-5xl) 0;
}

.error-page__code {
    font-family: var(--font-heading);
    font-size: 6rem;
    font-weight: 700;
    color: var(--color-border);
    line-height: 1;
}

.error-page__title {
    margin: var(--space-md) 0;
}

.error-page__text {
    color: var(--color-text-light);
    margin-bottom: var(--space-xl);
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ═══════════════════════════════════════════════════════ */

/* Tablet (768px+) */
@media (min-width: 768px) {
    .grid--2 { grid-template-columns: repeat(2, 1fr); }
    .grid--3 { grid-template-columns: repeat(2, 1fr); }
    .grid--4 { grid-template-columns: repeat(2, 1fr); }

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

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

    .footer__grid {
        grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    }

    .about-intro {
        grid-template-columns: 1fr 1fr;
    }

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

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

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

/* Desktop (1024px+) */
@media (min-width: 1024px) {
    .header__nav { display: block; }
    .header__cta { display: inline-flex; }
    .header__toggle { display: none; }

    .grid--3 { grid-template-columns: repeat(3, 1fr); }
    .grid--4 { grid-template-columns: repeat(3, 1fr); }

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

    .cta-band__inner {
        flex-direction: row;
        text-align: left;
    }

    .cta-band__actions {
        flex-shrink: 0;
    }
}

/* Large Desktop (1440px+) */
@media (min-width: 1440px) {
    .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* Small mobile adjustments */
@media (max-width: 480px) {
    .top-bar__contact {
        flex-direction: column;
        gap: 0.25rem;
    }

    .top-bar__social {
        display: none;
    }

    .hero {
        padding: var(--space-3xl) 0;
    }

    .hero__actions {
        flex-direction: column;
    }

    .hero__actions .btn {
        width: 100%;
    }

    .cta-band__actions {
        flex-direction: column;
        width: 100%;
    }

    .cta-band__actions .btn {
        width: 100%;
    }
}

/* ─── Animations (scroll reveal) ─── */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

@media (prefers-reduced-motion: reduce) {
    .fade-in {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* ─── Utility Classes ─── */
.text-center { text-align: center; }
.text-cta { color: var(--color-cta); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

/* ─── Modern Lang Dropdown ─── */
.lang-dropdown {
    position: relative;
    display: inline-block;
}

.lang-dropdown__toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background-color: var(--color-background-alt);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: all 0.2s ease;
}

.lang-dropdown__toggle:hover {
    background-color: var(--color-surface);
    border-color: var(--color-primary-light);
}

.lang-dropdown__flag {
    width: 20px;
    height: 15px;
    border-radius: 2px;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 1px rgba(0,0,0,0.1);
}

.lang-dropdown__flag svg {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.lang-dropdown__icon {
    transition: transform 0.2s ease;
}

.lang-dropdown:hover .lang-dropdown__icon {
    transform: rotate(180deg);
}

.lang-dropdown__menu {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    min-width: 140px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.2s ease;
    z-index: 100;
    list-style: none;
    padding: 8px 0;
    margin-bottom: 0;
}

.lang-dropdown:hover .lang-dropdown__menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown__menu li {
    margin: 0;
    padding: 0;
}

.lang-dropdown__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background-color 0.2s ease;
}

.lang-dropdown__item:hover {
    background-color: var(--color-background-alt);
    color: var(--color-primary);
}

.lang-dropdown__item.is-active {
    background-color: var(--color-background);
    color: var(--color-primary);
    font-weight: 700;
}