/**
 * CADMasters V2 — International Engineering Consultancy Presentation Layer
 * Deep Engineering Blue · Professional Grey · Engineering Cyan
 * Loaded after engineering-ui.css — enhances without breaking CMS/Theme Manager.
 */

:root {
    /* ── Enterprise design tokens (canonical) ── */
    --brand-primary: #0B3D91;
    --brand-primary-light: #1e4fa8;
    --brand-secondary: #00AEEF;
    --brand-secondary-soft: rgba(0, 174, 239, 0.12);

    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-inverse: #ffffff;

    --surface-default: #ffffff;
    --surface-muted: #f1f5f9;
    --surface-elevated: #ffffff;
    --surface-overlay: rgba(15, 23, 42, 0.04);

    --border-color: rgba(15, 23, 42, 0.08);
    --border-color-strong: rgba(15, 23, 42, 0.14);

    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 1rem;
    --radius-pill: 999px;

    --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
    --shadow-md: 0 4px 16px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 8px 32px rgba(15, 23, 42, 0.12);

    --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;

    --transition-fast: 0.15s ease;
    --transition-base: 0.28s ease;

    --container-sm: 640px;
    --container-md: 768px;
    --container-lg: 1024px;
    --container-xl: 1280px;
    --container-2xl: 1440px;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;

    --status-success: #198754;
    --status-warning: #997404;
    --status-danger: #dc3545;
    --status-info: #055160;
    --status-neutral: #495057;

    /* ── V2 aliases (backward compatible) ── */
    --cm-v2-blue: var(--brand-primary);
    --cm-v2-blue-light: var(--brand-primary-light);
    --cm-v2-grey: var(--text-secondary);
    --cm-v2-grey-light: var(--surface-muted);
    --cm-v2-cyan: var(--brand-secondary);
    --cm-v2-cyan-soft: var(--brand-secondary-soft);
    --cm-v2-shadow-soft: var(--shadow-sm);
    --cm-v2-shadow-card: var(--shadow-md);
    --cm-v2-radius: var(--radius-md);
    --cm-v2-radius-lg: var(--radius-lg);
    --cm-v2-section-gap: clamp(4.5rem, 9vw, 7rem);
}

/* ── Enhanced section rhythm ── */
.cm-engineering-ui .section-block {
    padding: var(--cm-v2-section-gap) 0;
}

.cm-engineering-ui .section-header__label {
    color: var(--cm-v2-cyan);
    font-size: 0.8125rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
}

.cm-engineering-ui .section-header__title {
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    line-height: 1.15;
    margin-bottom: 1rem;
}

.cm-engineering-ui .section-header__description {
    color: var(--cm-v2-grey);
    font-size: 1.0625rem;
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
}

.cm-engineering-ui .section-header--start .section-header__description {
    margin-left: 0;
}

/* ── Premium cards V2 ── */
.cm-engineering-ui .cm-card {
    border: 1px solid rgba(15, 23, 42, 0.06);
    border-radius: var(--cm-v2-radius-lg);
    box-shadow: var(--cm-v2-shadow-soft);
    transition: transform var(--cm-transition, 0.28s ease), box-shadow var(--cm-transition, 0.28s ease);
    overflow: hidden;
    background: #fff;
}

.cm-engineering-ui .cm-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--cm-v2-shadow-card);
}

.cm-engineering-ui .cm-card .card-link {
    color: var(--cm-v2-blue);
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.cm-engineering-ui .cm-card .card-link:hover {
    color: var(--cm-v2-cyan);
}

/* ── CTA band ── */
.cm-engineering-ui .cta-band {
    background: linear-gradient(135deg, var(--cm-v2-blue) 0%, var(--cm-v2-blue-light) 100%);
    color: #fff;
    padding: clamp(3rem, 6vw, 5rem) 0;
    position: relative;
    overflow: hidden;
}

.cm-engineering-ui .cta-band::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 80% 20%, var(--cm-v2-cyan-soft) 0%, transparent 50%);
    pointer-events: none;
}

.cm-engineering-ui .cta-band h2,
.cm-engineering-ui .cta-band p {
    color: #fff;
    position: relative;
}

/* ── FAQ accordion ── */
.cm-faq {
    max-width: 48rem;
    margin: 0 auto;
}

.cm-faq__item {
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: var(--cm-v2-radius);
    margin-bottom: 0.75rem;
    background: #fff;
    overflow: hidden;
}

.cm-faq__question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.125rem 1.25rem;
    background: none;
    border: none;
    text-align: left;
    font-weight: 600;
    color: var(--cm-charcoal, #0f172a);
    cursor: pointer;
    font-size: 1rem;
}

.cm-faq__question::after {
    content: '+';
    font-size: 1.25rem;
    color: var(--cm-v2-cyan);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.cm-faq__item.is-open .cm-faq__question::after {
    content: '−';
}

.cm-faq__answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.25rem;
    color: var(--cm-v2-grey);
    line-height: 1.65;
}

.cm-faq__item.is-open .cm-faq__answer {
    max-height: 24rem;
    padding: 0 1.25rem 1.125rem;
}

/* ── Timeline ── */
.cm-timeline {
    position: relative;
    padding-left: 2rem;
    max-width: 42rem;
}

.cm-timeline::before {
    content: '';
    position: absolute;
    left: 0.4375rem;
    top: 0.5rem;
    bottom: 0.5rem;
    width: 2px;
    background: linear-gradient(180deg, var(--cm-v2-cyan), var(--cm-v2-blue));
    border-radius: 1px;
}

.cm-timeline__item {
    position: relative;
    padding-bottom: 2rem;
}

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

.cm-timeline__marker {
    position: absolute;
    left: -1.625rem;
    top: 0.35rem;
    width: 0.875rem;
    height: 0.875rem;
    border-radius: 50%;
    background: var(--cm-v2-cyan);
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px var(--cm-v2-cyan-soft);
}

.cm-timeline__year {
    font-size: 0.8125rem;
    font-weight: 700;
    color: var(--cm-v2-cyan);
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.cm-timeline__title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--cm-charcoal, #0f172a);
    margin-bottom: 0.35rem;
}

.cm-timeline__text {
    color: var(--cm-v2-grey);
    font-size: 0.9375rem;
    margin: 0;
}

/* ── Statistics strip ── */
.cm-stats-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(10rem, 1fr));
    gap: 1.5rem;
}

.cm-stats-strip__item {
    text-align: center;
    padding: 1.5rem 1rem;
    background: #fff;
    border-radius: var(--cm-v2-radius-lg);
    border: 1px solid rgba(15, 23, 42, 0.06);
    box-shadow: var(--cm-v2-shadow-soft);
}

.cm-stats-strip__value {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 800;
    color: var(--cm-v2-blue);
    line-height: 1.1;
}

.cm-stats-strip__label {
    font-size: 0.875rem;
    color: var(--cm-v2-grey);
    margin-top: 0.35rem;
}

/* ── Trust bar / page chrome ── */
.cm-trust-bar {
    background: var(--cm-v2-grey-light);
    border-bottom: 1px solid rgba(15, 23, 42, 0.06);
    padding: 0.5rem 0;
    font-size: 0.8125rem;
    color: var(--cm-v2-grey);
}

/* ── Premium full-bleed hero (V2) ── */
.cm-engineering-ui .hero-section.cms-hero.hero-section--full {
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full.has-bg-image {
    background-color: var(--cm-v2-blue);
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full .hero-label {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--cm-v2-cyan);
    margin-bottom: 1.25rem;
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full .hero-label::before {
    content: '';
    display: inline-block;
    width: 2.5rem;
    height: 2px;
    background: linear-gradient(90deg, var(--cm-v2-cyan), transparent);
    flex-shrink: 0;
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full .hero-title,
.cm-engineering-ui .hero-section.cms-hero.hero-section--full .hero-content h1 {
    font-size: var(--hero-title-size, var(--hero-heading-size, var(--hero-heading-size-base, clamp(2.25rem, 5vw, 3.5rem))));
    font-weight: var(--hero-heading-weight, 700);
    line-height: var(--hero-heading-line-height, 1.15);
    letter-spacing: -0.02em;
    max-width: 16ch;
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full .hero-description,
.cm-engineering-ui .hero-section.cms-hero.hero-section--full .hero-content .lead {
    font-size: var(--hero-subtitle-size, var(--hero-subtitle-size-base, clamp(1rem, 2vw, 1.25rem)));
    line-height: 1.65;
    max-width: 38rem;
    opacity: 0.92;
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full .hero-actions {
    margin-top: 2.25rem;
    gap: 1rem;
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full .hero-actions .btn-cta {
    box-shadow: 0 4px 20px rgba(0, 174, 239, 0.25);
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full.has-bg-image::before {
    background: linear-gradient(
        105deg,
        rgba(11, 42, 74, 0.92) 0%,
        rgba(11, 61, 145, 0.72) 45%,
        rgba(11, 61, 145, 0.35) 100%
    );
}

.cm-engineering-ui .hero-section.cms-hero.hero-section--full.hero-has-overlay.has-bg-image::before {
    background: linear-gradient(
        105deg,
        rgba(11, 42, 74, 0.88) 0%,
        rgba(0, 0, 0, 0.55) 100%
    );
    opacity: 1;
}

@media (max-width: 767.98px) {
    .cm-engineering-ui .section-header__title {
        font-size: 1.5rem;
    }
}

/* ── V2 card grid sections ── */
.cm-engineering-ui .cm-v2-card-grid .card.cm-card {
    min-height: 100%;
}

.cm-engineering-ui .cm-v2-card-grid .card-title {
    color: var(--cm-charcoal, #0f172a);
}

.cm-engineering-ui .cm-v2-card-grid .card-text {
    line-height: 1.65;
}

.cm-engineering-ui .cm-v2-stack-badges .cm-v2-stack-badge {
    transition: transform var(--cm-transition, 0.28s ease), box-shadow var(--cm-transition, 0.28s ease);
}

.cm-engineering-ui .cm-v2-stack-badges a.cm-v2-stack-badge:hover {
    transform: translateY(-2px);
    box-shadow: var(--cm-v2-shadow-soft);
}

.cm-engineering-ui .cm-v2-quality-badges .cm-v2-quality-badge {
    transition: transform var(--cm-transition, 0.28s ease), box-shadow var(--cm-transition, 0.28s ease);
}

.cm-engineering-ui .cm-v2-quality-badges .cm-v2-quality-badge:hover {
    transform: translateY(-2px);
    box-shadow: var(--cm-v2-shadow-soft);
}

.cm-engineering-ui .quality-badge__media {
    width: 2rem;
    height: 2rem;
}

.cm-engineering-ui .quality-badge__image {
    max-height: 2rem;
    width: auto;
}