/********** Melal Premium Design System — WCAG-aware tokens & components **********/

:root {
    /* Base palette (user-provided) */
    --color-ink: #0a0908;
    --color-slate: #22333b;
    --color-cream: #eae0d5;
    --color-sand: #c6ac8f;
    --color-earth: #5e503f;

    /* Accessible semantic colors */
    --color-bg: var(--color-cream);
    --color-surface: #f7f2ec;
    --color-surface-raised: #ffffff;
    --color-surface-sunken: #e0d6ca;
    --color-text: var(--color-ink);
    --color-text-secondary: #3d3429;
    --color-text-muted: #4f4538;
    --color-text-inverse: var(--color-cream);
    --color-text-inverse-muted: #d8cfc4;
    --color-border: rgba(10, 9, 8, 0.1);
    --color-border-strong: rgba(10, 9, 8, 0.18);
    --color-brand: var(--color-earth);
    --color-brand-dark: var(--color-slate);
    --color-accent: var(--color-sand);
    --color-focus: #22333b;

    /* Spacing scale (4px base) */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Typography */
    --font-display: 'Vazirmatn', system-ui, sans-serif;
    --font-body: 'Vazirmatn', system-ui, sans-serif;
    --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
    --text-sm: clamp(0.875rem, 0.84rem + 0.2vw, 0.9375rem);
    --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
    --text-lg: clamp(1.125rem, 1.05rem + 0.35vw, 1.25rem);
    --text-xl: clamp(1.35rem, 1.2rem + 0.6vw, 1.65rem);
    --text-2xl: clamp(1.65rem, 1.4rem + 1vw, 2.25rem);
    --text-3xl: clamp(2rem, 1.6rem + 1.6vw, 3rem);
    --text-4xl: clamp(2.5rem, 2rem + 2.2vw, 4rem);
    --leading-tight: 1.2;
    --leading-snug: 1.35;
    --leading-normal: 1.65;
    --leading-relaxed: 1.8;

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    /* Elevation */
    --shadow-xs: 0 1px 2px rgba(10, 9, 8, 0.05);
    --shadow-sm: 0 4px 16px rgba(10, 9, 8, 0.06);
    --shadow-md: 0 8px 32px rgba(10, 9, 8, 0.08);
    --shadow-lg: 0 20px 50px rgba(10, 9, 8, 0.12);
    --shadow-focus: 0 0 0 3px rgba(34, 51, 59, 0.28);

    /* Motion */
    --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
    --duration-fast: 180ms;
    --duration-normal: 320ms;

    /* Map legacy tokens */
    --palette-900: var(--color-ink);
    --palette-800: var(--color-slate);
    --palette-accent: var(--color-sand);
    --palette-600: var(--color-earth);
    --palette-400: var(--color-sand);
    --palette-100: var(--color-cream);
    --melal-bg: var(--color-bg);
    --melal-surface: var(--color-surface);
    --melal-surface-2: var(--color-surface-sunken);
    --melal-text: var(--color-text);
    --melal-text-muted: var(--color-text-muted);
    --melal-border: var(--color-border);
    --melal-border-strong: var(--color-border-strong);
    --bs-primary: var(--color-earth);
    --bs-body-bg: var(--color-bg);
    --bs-body-color: var(--color-text);
}

/* Skip link */
.skip-link {
    position: absolute;
    top: -100%;
    right: var(--space-4);
    z-index: 10001;
    padding: var(--space-3) var(--space-5);
    background: var(--color-slate);
    color: var(--color-text-inverse);
    font-weight: 600;
    font-size: var(--text-sm);
    border-radius: var(--radius-md);
    text-decoration: none;
    box-shadow: var(--shadow-md);
    transition: top var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
    top: var(--space-4);
    outline: none;
    box-shadow: var(--shadow-focus), var(--shadow-md);
}

/* Base refinements */
body {
    font-family: var(--font-body);
    font-size: var(--text-base);
    line-height: var(--leading-normal);
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

h1, .h1 { font-size: var(--text-3xl); line-height: var(--leading-tight); letter-spacing: -0.03em; }
h2, .h2 { font-size: var(--text-2xl); line-height: var(--leading-snug); letter-spacing: -0.025em; }
h3, .h3 { font-size: var(--text-xl); line-height: var(--leading-snug); }
h4, .h4 { font-size: var(--text-lg); }

.text-muted-custom {
    color: var(--color-text-muted) !important;
}

/* Focus — visible, consistent */
:focus-visible {
    outline: 2px solid var(--color-focus);
    outline-offset: 3px;
}

.btn:focus-visible {
    outline-offset: 4px;
    box-shadow: var(--shadow-focus);
}

/* Section header */
.section-header {
    margin-bottom: var(--space-12);
}

.section-header--center {
    text-align: center;
    max-width: 40rem;
    margin-inline: auto;
    margin-bottom: var(--space-12);
}

.section-header__title {
    margin: var(--space-3) 0 var(--space-4);
    font-size: var(--text-2xl);
    color: var(--color-text);
}

.section-header__desc {
    margin: 0;
    font-size: var(--text-lg);
    color: var(--color-text-muted);
    line-height: var(--leading-relaxed);
}

/* Section label — accessible on all contexts */
.section-label {
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-full);
    background: var(--color-slate);
    color: var(--color-text-inverse);
}

.cta-band .section-label {
    background: rgba(234, 224, 213, 0.15);
    color: var(--color-text-inverse);
    border: 1px solid rgba(234, 224, 213, 0.2);
}

/* Buttons — premium states */
.btn {
    font-size: var(--text-sm);
    font-weight: 600;
    letter-spacing: 0.01em;
    border-radius: var(--radius-full);
    min-height: 48px;
    padding: 0.8rem 1.6rem;
    transition:
        transform var(--duration-fast) var(--ease-out),
        box-shadow var(--duration-fast) var(--ease-out),
        background var(--duration-fast) var(--ease-out),
        color var(--duration-fast) var(--ease-out),
        border-color var(--duration-fast) var(--ease-out);
}

.btn-primary {
    color: var(--color-text-inverse) !important;
    background: var(--color-slate) !important;
    border: 1px solid transparent !important;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--color-ink) !important;
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-outline-primary {
    color: var(--color-brand) !important;
    border: 1.5px solid var(--color-brand) !important;
    background: transparent !important;
}

.btn-outline-primary:hover {
    color: var(--color-text-inverse) !important;
    background: var(--color-brand) !important;
    border-color: var(--color-brand) !important;
}

/* Hero ghost button — WCAG on dark overlay */
.btn-hero-ghost {
    color: var(--color-text-inverse) !important;
    border: 1.5px solid rgba(234, 224, 213, 0.65) !important;
    background: rgba(10, 9, 8, 0.25) !important;
    backdrop-filter: blur(8px);
}

.btn-hero-ghost:hover {
    color: var(--color-ink) !important;
    background: var(--color-cream) !important;
    border-color: var(--color-cream) !important;
}

/* CTA on dark band */
.cta-band .btn-outline-primary {
    color: var(--color-text-inverse) !important;
    border-color: rgba(234, 224, 213, 0.55) !important;
}

.cta-band .btn-outline-primary:hover {
    background: var(--color-cream) !important;
    color: var(--color-ink) !important;
    border-color: var(--color-cream) !important;
}

.cta-band .text-muted-custom {
    color: var(--color-text-inverse-muted) !important;
}

/* Navbar */
.melal-nav {
    background: rgba(247, 242, 236, 0.88) !important;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-xs);
}

.melal-nav.melal-nav--scrolled {
    background: rgba(247, 242, 236, 0.96) !important;
    box-shadow: var(--shadow-sm);
}

.melal-nav .navbar-nav .nav-link {
    color: var(--color-text-secondary) !important;
    font-size: var(--text-sm);
    font-weight: 500;
}

.melal-nav .navbar-nav .nav-link:hover,
.melal-nav .navbar-nav .nav-link.active {
    color: var(--color-text-inverse) !important;
    background: var(--color-slate);
}

/* Hero */
#header-carousel .carousel-caption p {
    color: var(--color-text-inverse-muted);
    font-size: var(--text-lg);
    line-height: var(--leading-relaxed);
    max-width: 36rem;
}

#header-carousel .carousel-caption .title h5 {
    color: var(--color-accent);
    font-size: var(--text-xs);
    letter-spacing: 0.2em;
}

#header-carousel .carousel-caption .title h1 {
    color: #ffffff;
    text-shadow: 0 2px 24px rgba(10, 9, 8, 0.35);
}

.hero-indicator {
    background: rgba(234, 224, 213, 0.35);
}

.hero-indicator.active,
.hero-indicator:hover {
    background: var(--color-cream);
}

/* Stats */
.stat-num {
    color: var(--color-slate);
    font-variant-numeric: tabular-nums;
}

.stat-label {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
}

.stats-bar__inner {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
}

.stat-item {
    background: transparent;
}

.stat-item:hover {
    background: var(--color-surface);
}

/* Feature list */
.feature-list .fa-check-circle {
    color: var(--color-brand) !important;
}

.feature-list .list-group-item {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
}

/* Premium service grid */
.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-8);
    }
}

.service-card {
    position: relative;
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xs);
    transition:
        transform var(--duration-normal) var(--ease-out),
        box-shadow var(--duration-normal) var(--ease-out),
        border-color var(--duration-normal) var(--ease-out);
}

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

.service-card__media {
    position: relative;
    aspect-ratio: 16 / 10;
    overflow: hidden;
}

.service-card__media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s var(--ease-out);
}

.service-card:hover .service-card__media img {
    transform: scale(1.04);
}

.service-card__index {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 700;
    letter-spacing: 0.08em;
    background: var(--color-slate);
    color: var(--color-text-inverse);
    border-radius: var(--radius-full);
}

.service-card__body {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.service-card__body h3 {
    margin-bottom: var(--space-3);
    color: var(--color-slate);
    font-size: var(--text-lg);
}

.service-card__body p {
    margin-bottom: var(--space-5);
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    line-height: var(--leading-relaxed);
    flex: 1;
}

.service-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-brand);
    text-decoration: none;
    transition: gap var(--duration-fast) var(--ease-out), color var(--duration-fast);
}

.service-card__link:hover {
    color: var(--color-slate);
    gap: var(--space-3);
}

/* Blog cards */
.blog-card {
    background: var(--color-surface-raised) !important;
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-xs);
    overflow: hidden;
}

.blog-card:hover {
    box-shadow: var(--shadow-md);
}

.blog-card h5,
.blog-card h5 a {
    color: var(--color-text) !important;
    font-size: var(--text-base);
    line-height: var(--leading-snug);
    text-decoration: none;
    transition: color var(--duration-fast);
}

.blog-card h5 a:hover {
    color: var(--color-brand) !important;
}

.blog-card .card-body {
    padding: var(--space-6);
}

/* Industry cards */
.industry-item {
    border-radius: var(--radius-lg);
    background: var(--color-surface-raised);
    box-shadow: var(--shadow-xs);
}

.industry-item .team-name {
    background: linear-gradient(0deg, rgba(10, 9, 8, 0.88) 0%, transparent 100%);
}

.industry-item .team-name h5 {
    color: #ffffff;
    font-weight: 600;
}

/* CTA band */
.cta-band {
    border-radius: var(--radius-xl);
    background: linear-gradient(145deg, var(--color-ink) 0%, var(--color-slate) 55%, #2d4450 100%);
    box-shadow: var(--shadow-lg);
}

.cta-band h2 {
    color: var(--color-text-inverse);
    font-size: var(--text-2xl);
}

/* Footer — accessible on dark */
.melal-footer {
    background: var(--color-ink) !important;
    color: var(--color-text-inverse-muted);
}

.melal-footer .text-muted-custom,
.melal-footer .footer-links a {
    color: var(--color-text-inverse-muted) !important;
}

.melal-footer h6.text-primary {
    color: var(--color-cream) !important;
    font-size: var(--text-sm);
    font-weight: 700;
    letter-spacing: 0.06em;
}

.melal-footer a.text-white,
.melal-footer .footer-links a:hover {
    color: var(--color-cream) !important;
}

.melal-footer .btn-outline-primary {
    color: var(--color-cream) !important;
    border-color: rgba(234, 224, 213, 0.4) !important;
}

.melal-footer .btn-outline-primary:hover {
    background: var(--color-cream) !important;
    color: var(--color-ink) !important;
}

.melal-footer .border-secondary {
    border-color: rgba(234, 224, 213, 0.12) !important;
}

/* FAB */
.fab-contact {
    background: var(--color-slate);
    box-shadow: var(--shadow-md);
}

.fab-contact:hover {
    background: var(--color-ink);
}

/* Back to top */
.back-to-top {
    background: var(--color-surface-raised);
    border-color: var(--color-border-strong) !important;
    color: var(--color-brand) !important;
    box-shadow: var(--shadow-sm);
}

.back-to-top:hover {
    background: var(--color-slate);
    color: var(--color-text-inverse) !important;
    border-color: var(--color-slate) !important;
}

/* Page header breadcrumb */
.page-header .breadcrumb-item.active {
    color: var(--color-cream) !important;
}

/* Forms */
.form-floating > .form-control {
    font-size: var(--text-base);
}

.form-floating > label {
    color: var(--color-text-muted);
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .service-card:hover,
    .btn-primary:hover,
    .btn-outline-primary:hover {
        transform: none;
    }

    .service-card:hover .service-card__media img {
        transform: none;
    }
}

.cta-band__desc {
    max-width: 32rem;
    margin-inline: auto;
}

.cta-band .section-header--center {
    max-width: 32rem;
    margin-inline: auto;
}

/* Customer logos */
.customer-carousel .customer-slide {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.customer-carousel .customer-slide:hover {
    border-color: var(--color-border-strong);
    box-shadow: var(--shadow-sm);
}

/* Blog listing (blogs.html) */
.blog-card-v2__title {
    color: var(--color-text) !important;
}

.blog-card-v2__link {
    color: var(--color-brand) !important;
}

.blog-card-v2__badge {
    background: var(--color-slate);
    color: var(--color-text-inverse);
}

.blog-filter-btn {
    color: var(--color-text-muted);
    border-color: var(--color-border-strong);
    background: var(--color-surface-raised);
}

.blog-filter-btn:hover,
.blog-filter-btn.active {
    background: var(--color-slate);
    color: var(--color-text-inverse);
    border-color: var(--color-slate);
}

/* Article typography */
.blog-article-content h2 {
    color: var(--color-slate);
}

.blog-nav-link span {
    color: var(--color-brand);
}

/* Contact & forms */
.contact-quick__icon {
    background: rgba(94, 80, 63, 0.1);
    color: var(--color-brand);
}

.contact-card {
    background: var(--color-surface-raised);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xs);
}

.section-services .service-item {
    display: none;
}