/* ============================================================
   AA&C Home Improvement & Maintenance
   Navy Blue + White — Portfolio Edition
   ============================================================ */


/* ============================================================
   1. Design Tokens
   ============================================================ */
:root {
    /* ── Navy blue palette (primary) ── */
    --navy:           #0D1B2A;   /* deepest bg               */
    --navy-mid:       #152234;   /* alternate section bg     */
    --navy-card:      #1B2B3E;   /* card / panel surface     */
    --navy-deep:      #071321;   /* footer / darkest         */

    /* Legacy aliases so nothing breaks */
    --bg:             #0D1B2A;
    --bg-alt:         #152234;
    --charcoal:       #0D1B2A;
    --charcoal-mid:   #152234;
    --charcoal-card:  #1B2B3E;
    --charcoal-deep:  #071321;
    --navy-border:    rgba(255, 255, 255, 0.10);

    /* ── Accent — ocean / sky blue ── */
    --accent:         #4A9EDB;
    --accent-hover:   #357BBD;
    --accent-glow:    rgba(74, 158, 219, 0.28);

    /* Legacy gold → blue mapping */
    --gold:           #4A9EDB;
    --gold-light:     #68B4E8;
    --gold-bg:        rgba(74, 158, 219, 0.10);
    --gold-border:    rgba(74, 158, 219, 0.28);

    /* ── Text ── */
    --text:           #E8EDF2;
    --text-muted:     #8D99AE;
    --text-hero:      #FFFFFF;

    /* ── Borders ── */
    --border:         rgba(255, 255, 255, 0.10);
    --border-strong:  rgba(255, 255, 255, 0.18);

    /* ── Typography ── */
    --font-heading:   'Oswald', 'Arial Narrow', Arial, sans-serif;
    --font-body:      'Inter', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;

    /* ── Radii ── */
    --radius-sm:      4px;
    --radius-md:      8px;
    --radius-lg:      14px;
    --header-h:       70px;

    /* ── Shadows ── */
    --shadow-sm:      0 2px 12px rgba(0, 0, 0, 0.30);
    --shadow-md:      0 6px 30px rgba(0, 0, 0, 0.38);
    --shadow-lg:      0 14px 50px rgba(0, 0, 0, 0.50);
    --shadow-blue:    0 8px 30px rgba(74, 158, 219, 0.28);

    --ease: 0.24s ease;
}


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

html { scroll-behavior: smooth; font-size: 16px; }

/*
   Navy-tinted texture: AAC Office.jpg at ~12% visibility
   under an 88% navy overlay — acts as subtle depth, not a photo.
*/
body {
    font-family: var(--font-body);
    color: var(--text);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;

    background-color: var(--navy);
    background-image:
        linear-gradient(rgba(7, 19, 33, 0.88), rgba(7, 19, 33, 0.88)),
        url('../images/AAC Office.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center center;
    background-repeat: no-repeat;
}

img  { max-width: 100%; height: auto; display: block; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }
p    { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

section { padding: 100px 5%; }
section[id] { scroll-margin-top: var(--header-h); }


/* ============================================================
   3. Typography
   ============================================================ */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.12;
    margin-bottom: 1rem;
}

h1 { font-size: clamp(2.8rem, 7vw, 5.2rem);    font-weight: 800; text-transform: uppercase; letter-spacing: -0.01em; }
h2 { font-size: clamp(2rem, 4.5vw, 3rem);       font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; }
h3 { font-size: clamp(1.05rem, 2.4vw, 1.3rem);  font-weight: 600; letter-spacing: 0.02em; }
h4 { font-size: clamp(0.95rem, 2vw, 1.15rem);   font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; }


/* ============================================================
   4. Scroll-Reveal Animations
   ============================================================ */
[data-reveal] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.62s ease, transform 0.62s ease;
}

[data-reveal].revealed { opacity: 1; transform: none; }

[data-reveal][data-delay="1"] { transition-delay: 0.10s; }
[data-reveal][data-delay="2"] { transition-delay: 0.20s; }
[data-reveal][data-delay="3"] { transition-delay: 0.32s; }
[data-reveal][data-delay="4"] { transition-delay: 0.44s; }
[data-reveal][data-delay="5"] { transition-delay: 0.56s; }
[data-reveal][data-delay="6"] { transition-delay: 0.68s; }
[data-reveal][data-delay="7"] { transition-delay: 0.80s; }


/* ============================================================
   5. Utilities
   ============================================================ */
.section-header { text-align: center; margin-bottom: 4rem; }

/* White accent rule above every section title */
.section-header::before {
    content: '';
    display: block;
    width: 44px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    margin: 0 auto 1.4rem;
    opacity: 0.55;
}

/* White-to-blue gradient title */
.section-header h2 {
    margin-bottom: 0.65rem;
    background: linear-gradient(130deg, #ffffff 30%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-sub {
    color: var(--text-muted);
    font-size: 1rem;
    font-family: var(--font-body);
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    margin: 0 auto;
    max-width: 560px;
    line-height: 1.70;
}

.section-cta { display: flex; justify-content: center; margin-top: 3.5rem; }


/* ============================================================
   6. Buttons
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 14px 34px;
    background-color: var(--accent);
    color: #fff;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: 0.80rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    border-radius: var(--radius-sm);
    border: 2px solid var(--accent);
    cursor: pointer;
    transition: background-color var(--ease), border-color var(--ease),
                transform var(--ease), box-shadow var(--ease);
    white-space: nowrap;
}

.btn:hover, .btn:focus-visible {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-3px);
    box-shadow: var(--shadow-blue);
    outline: none;
}

.btn--outline {
    background-color: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.45);
}

.btn--outline:hover, .btn--outline:focus-visible {
    background-color: rgba(255, 255, 255, 0.10);
    border-color: #fff;
    color: #fff;
}

/* Hero primary CTA */
.btn--hero {
    font-size: 0.88rem;
    padding: 18px 44px;
    letter-spacing: 0.14em;
    box-shadow: var(--shadow-blue), 0 4px 24px rgba(0, 0, 0, 0.30);
}

.btn--hero:hover, .btn--hero:focus-visible {
    box-shadow: 0 12px 42px rgba(74, 158, 219, 0.45), 0 6px 28px rgba(0, 0, 0, 0.32);
}

/* Hero ghost link */
.hero-link {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    color: rgba(255, 255, 255, 0.72);
    font-family: var(--font-body);
    font-size: 0.80rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    padding: 18px 4px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.25);
    transition: color var(--ease), border-color var(--ease);
}

.hero-link:hover { color: var(--accent); border-color: var(--accent); }
.hero-link i { font-size: 0.75rem; transition: transform var(--ease); }
.hero-link:hover i { transform: translateX(4px); }

/* Submit */
.btn--submit { width: 100%; padding: 16px; font-size: 0.88rem; border: none; }
.btn--submit:disabled { opacity: 0.36; cursor: not-allowed; transform: none !important; box-shadow: none !important; }


/* ============================================================
   7. Header & Navigation
   ============================================================ */
#site-header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    height: var(--header-h);
    padding: 0 5%;
    background-color: rgba(7, 19, 33, 0.82);
    backdrop-filter: blur(22px);
    -webkit-backdrop-filter: blur(22px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: height var(--ease), background-color var(--ease), box-shadow var(--ease);
}

/* Subtle white top strip (no orange) */
#site-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: rgba(255, 255, 255, 0.25);
}

#site-header.header--scrolled {
    height: 56px;
    background-color: rgba(5, 14, 24, 0.97);
    box-shadow: 0 1px 0 var(--border), 0 6px 28px rgba(0, 0, 0, 0.45);
}

.nav-container {
    height: 100%;
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}

.nav-logo img { height: 72px; transition: height var(--ease); }
#site-header.header--scrolled .nav-logo img { height: 52px; }

/* Mobile nav */
.nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0;
    width: 100%;
    background-color: rgba(5, 14, 24, 0.98);
    backdrop-filter: blur(20px);
    padding: 1.5rem 5% 2rem;
    gap: 0;
    border-bottom: 2px solid var(--accent);
    box-shadow: 0 14px 44px rgba(0, 0, 0, 0.55);
}

.nav-links--open { display: flex; }

.nav-link {
    display: block;
    padding: 0.9rem 0;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.88rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.10em;
    transition: color var(--ease), padding-left var(--ease);
}

.nav-link:hover, .nav-link:focus-visible {
    color: #fff; padding-left: 6px; outline: none;
}

.nav-link--cta {
    color: #fff;
    background: var(--accent);
    padding: 0.65rem 1.4rem;
    border-radius: var(--radius-sm);
    border-bottom: none;
    margin-top: 1.25rem;
    display: inline-block;
    transition: background-color var(--ease);
}

.nav-link--cta:hover { color: #fff; background: var(--accent-hover); padding-left: 1.4rem; }

.nav-lang-item { padding: 0.8rem 0; border-bottom: 1px solid var(--border); }

.lang-toggle {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 6px 14px;
    background: rgba(74, 158, 219, 0.10);
    border: 1.5px solid rgba(74, 158, 219, 0.28);
    border-radius: 100px;
    color: var(--accent);
    font-family: var(--font-body); font-weight: 700; font-size: 0.78rem; letter-spacing: 0.07em;
    cursor: pointer;
    transition: background var(--ease), color var(--ease), border-color var(--ease);
    white-space: nowrap;
}

.lang-toggle:hover, .lang-toggle:focus-visible {
    background: var(--accent); color: #fff; border-color: var(--accent); outline: none;
}

@media (min-width: 768px) { .nav-lang-item { padding: 0; border-bottom: none; } }

.nav-toggle {
    display: flex; flex-direction: column; justify-content: center;
    gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; z-index: 1100;
}

.hamburger-line {
    display: block; width: 24px; height: 2px;
    background: var(--text); border-radius: 2px;
    transition: transform var(--ease), opacity var(--ease);
}


/* ============================================================
   8. Hero Section
   ============================================================ */
#hero {
    position: relative;
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center; text-align: center;
    padding: calc(var(--header-h) + 80px) 5% 120px;
    background-image: url('../images/MCBridge.jpg');
    background-size: cover;
    background-position: center 38%;
    background-attachment: scroll;
    overflow: hidden;
}

#hero::before {
    content: '';
    position: absolute; inset: 0;
    background: linear-gradient(
        165deg,
        rgba(5, 14, 26, 0.88) 0%,
        rgba(13, 27, 42, 0.78) 50%,
        rgba(5, 14, 26, 0.92) 100%
    );
    z-index: 0;
}

#hero::after {
    content: '';
    position: absolute; bottom: 0; left: 0; right: 0;
    height: 180px;
    background: linear-gradient(to bottom, transparent, var(--navy));
    z-index: 0;
}

.hero-content { position: relative; z-index: 1; max-width: 880px; margin: 0 auto; }

.hero-eyebrow {
    display: inline-flex; align-items: center; gap: 0.5rem;
    font-family: var(--font-body); font-size: 0.72rem; font-weight: 700;
    letter-spacing: 0.20em; text-transform: uppercase;
    color: rgba(255, 255, 255, 0.80);
    margin-bottom: 2.25rem; padding: 7px 24px;
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.08);
}

.hero-content h1 {
    color: #fff; margin-bottom: 1.5rem;
    text-shadow: 0 4px 32px rgba(0, 0, 0, 0.55); line-height: 1.05;
}

.hero-content h1 em { font-style: normal; color: var(--accent); }

.hero-sub {
    font-size: 1.05rem; color: rgba(232, 237, 242, 0.75);
    max-width: 520px; margin: 0 auto 3.25rem;
    line-height: 1.75; font-weight: 400;
}

.hero-cta-group {
    display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 1.75rem;
}


/* ============================================================
   9. About Section
   ============================================================ */
#about { background-color: rgba(13, 27, 42, 0.85); }

.about-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }

/* Cards with white left border for lightness */
.about-card {
    background: var(--navy-card);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    border-left: 4px solid rgba(255, 255, 255, 0.55);
    padding: 2.25rem 2rem;
    box-shadow: var(--shadow-sm);
    position: relative; overflow: hidden;
    transition: transform var(--ease), box-shadow var(--ease), border-left-color var(--ease);
}

.about-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md), 0 0 0 1px rgba(74, 158, 219, 0.22);
    border-left-color: var(--accent);
}

.card-heading { color: #fff; margin-bottom: 1rem; }
.about-card > p { color: var(--text-muted); font-size: 0.96rem; line-height: 1.72; }

.founder-photo-wrap {
    width: 140px; height: 185px;
    border-radius: var(--radius-md); overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.55);
    box-shadow: var(--shadow-md); margin: 0 auto 1.5rem;
    transition: border-color var(--ease);
}

.about-card:hover .founder-photo-wrap { border-color: var(--accent); }
.founder-photo-wrap img { width: 100%; height: 100%; object-fit: cover; object-position: center 60%; }

.founder-name-badge { text-align: center; margin-bottom: 1.5rem; }
.founder-name-badge h3 { color: #fff; font-size: 1.15rem; margin-bottom: 0.3rem; }

.founder-title {
    font-family: var(--font-body); font-size: 0.78rem; font-weight: 700;
    color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase;
}

.card-icon-bg {
    position: absolute; top: 18px; right: 22px;
    font-size: 4.5rem; color: #fff; opacity: 0.04;
    pointer-events: none; user-select: none;
}

.trust-badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.5rem; }

.trust-badge {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-family: var(--font-body); font-size: 0.72rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.07em;
    color: rgba(255, 255, 255, 0.75);
    padding: 5px 14px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.06);
}

.values-list { display: flex; flex-direction: column; gap: 1.5rem; margin-top: 1rem; }
.values-list li { display: flex; align-items: flex-start; gap: 1.1rem; }

.value-icon {
    display: flex; align-items: center; justify-content: center;
    width: 40px; height: 40px; min-width: 40px;
    background: var(--accent); color: #fff;
    border-radius: var(--radius-sm); font-size: 0.88rem;
    box-shadow: var(--shadow-sm); flex-shrink: 0;
}

.values-list li strong {
    display: block; color: #fff;
    font-family: var(--font-body); font-size: 0.92rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.28rem;
}

.values-list li p { color: var(--text-muted); font-size: 0.91rem; margin: 0; line-height: 1.58; }


/* ============================================================
   10. Services Section
   ============================================================ */
#services { background-color: rgba(21, 34, 52, 0.88); }

#services .section-header h2 { background: none; -webkit-text-fill-color: #fff; color: #fff; }
#services .section-sub { color: rgba(255, 255, 255, 0.50); }

.services-description {
    text-align: center; max-width: 680px;
    margin: -1.5rem auto 3.25rem;
    color: rgba(255, 255, 255, 0.44); font-size: 0.97rem; line-height: 1.78;
}

.services-grid {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 1px; background: var(--border);
    border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden;
}

.service-card {
    background: var(--navy-card);
    padding: 2.25rem 1.75rem; text-align: center;
    display: flex; flex-direction: column; align-items: center;
    position: relative; cursor: default;
    transition: background var(--ease);
}

/* White underline sweep on hover */
.service-card::before {
    content: ''; position: absolute; bottom: 0; left: 50%;
    transform: translateX(-50%); width: 0; height: 2px;
    background: rgba(255, 255, 255, 0.55); transition: width 0.38s ease;
}

.service-card:hover::before { width: 100%; }
.service-card:hover { background: rgba(255, 255, 255, 0.04); }

.service-card__icon {
    width: 60px; height: 60px; min-height: 60px;
    border-radius: var(--radius-sm);
    background: rgba(74, 158, 219, 0.10);
    border: 1px solid rgba(74, 158, 219, 0.20);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.35rem; color: var(--accent); margin-bottom: 1.25rem;
    transition: background var(--ease), transform var(--ease), box-shadow var(--ease), color var(--ease);
}

.service-card:hover .service-card__icon {
    background: var(--accent); color: #fff;
    transform: translateY(-5px); box-shadow: var(--shadow-blue);
}

.service-card h3 {
    color: #fff; margin-bottom: 0.5rem;
    font-family: var(--font-body); font-weight: 700; font-size: 0.92rem;
    text-transform: uppercase; letter-spacing: 0.07em;
}

.service-card p { color: rgba(255, 255, 255, 0.44); font-size: 0.88rem; margin: 0; line-height: 1.62; }

.services-cta { display: flex; flex-direction: column; align-items: center; gap: 1rem; margin-top: 3.5rem; }

#services .btn { background: #fff; color: var(--navy); border-color: #fff; }
#services .btn:hover, #services .btn:focus-visible {
    background: rgba(255,255,255,0.90); border-color: rgba(255,255,255,0.90); color: var(--navy);
}

#services .btn--outline {
    background: transparent; color: rgba(255,255,255,0.75); border-color: rgba(255,255,255,0.25); box-shadow: none;
}

#services .btn--outline:hover, #services .btn--outline:focus-visible {
    background: rgba(255,255,255,0.08); color: #fff; border-color: rgba(255,255,255,0.55);
}


/* ============================================================
   11. Work Gallery — Filterable
   ============================================================ */
#work { background-color: rgba(13, 27, 42, 0.85); }

/* Filter Bar */
.gallery-filters {
    display: flex; flex-wrap: wrap; gap: 0.5rem;
    justify-content: center; margin-bottom: 2.5rem;
}

.filter-btn {
    padding: 8px 18px;
    font-family: var(--font-body); font-size: 0.74rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.10em;
    color: rgba(255, 255, 255, 0.52);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background var(--ease), color var(--ease), border-color var(--ease), box-shadow var(--ease);
    white-space: nowrap;
}

.filter-btn:hover {
    color: #fff; background: rgba(74, 158, 219, 0.14); border-color: rgba(74, 158, 219, 0.40);
}

.filter-btn.active {
    color: #fff; background: var(--accent); border-color: var(--accent);
    box-shadow: 0 4px 16px rgba(74, 158, 219, 0.30);
}

/* Gallery Grid */
.work-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }

/* Smooth filter transitions */
.gallery-item {
    border-radius: var(--radius-sm); overflow: hidden;
    aspect-ratio: 1 / 1; background: var(--border);
    cursor: zoom-in; position: relative;
    transition: opacity 0.30s ease, transform 0.30s ease, box-shadow 0.28s ease;
}

/* White border glow on hover */
.gallery-item:hover {
    transform: scale(1.04);
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.70), var(--shadow-md);
    z-index: 2;
}

/* Blue overlay on hover */
.gallery-item::after {
    content: '\f00e';
    font-family: 'Font Awesome 6 Free'; font-weight: 900;
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.6rem; color: #fff;
    background: rgba(13, 27, 42, 0.72);
    opacity: 0;
    transition: opacity 0.30s ease;
    pointer-events: none;
}

.gallery-item:hover::after { opacity: 1; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.48s ease; }
.gallery-item:hover img { transform: scale(1.08); }


/* ============================================================
   12. Lightbox Modal
   ============================================================ */
.lightbox {
    position: fixed; inset: 0; z-index: 2000;
    display: flex; align-items: center; justify-content: center;
    background: rgba(5, 14, 26, 0.96);
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    padding: 1.5rem;
    animation: lb-fade-in 0.22s ease forwards;
}

@keyframes lb-fade-in { from { opacity: 0; } to { opacity: 1; } }

.lightbox[hidden] { display: none; }

.lightbox__inner {
    position: relative; max-width: min(90vw, 1100px); max-height: 90vh;
    display: flex; align-items: center; justify-content: center;
}

.lightbox__inner img {
    max-width: 100%; max-height: 85vh;
    border-radius: var(--radius-md);
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.80);
    object-fit: contain;
    transition: opacity 0.20s ease; display: block;
}

.lightbox__close {
    position: fixed; top: 1.25rem; right: 1.5rem;
    width: 44px; height: 44px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-sm); color: #fff;
    font-size: 1.15rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background var(--ease), transform var(--ease);
    z-index: 2010;
}

.lightbox__close:hover { background: rgba(255,255,255,0.22); transform: scale(1.10); }

.lightbox__prev,
.lightbox__next {
    position: fixed; top: 50%; transform: translateY(-50%);
    width: 48px; height: 48px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm); color: #fff;
    font-size: 1.1rem; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background var(--ease), border-color var(--ease);
    z-index: 2010;
}

.lightbox__prev { left: 1.25rem; }
.lightbox__next { right: 1.25rem; }

.lightbox__prev:hover, .lightbox__next:hover {
    background: rgba(74, 158, 219, 0.60); border-color: var(--accent);
}

.lightbox__counter {
    position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
    font-family: var(--font-body); font-size: 0.75rem; font-weight: 600; letter-spacing: 0.10em;
    color: rgba(255, 255, 255, 0.55);
    background: rgba(0, 0, 0, 0.45); padding: 5px 16px;
    border-radius: 100px; border: 1px solid rgba(255,255,255,0.12);
    z-index: 2010; white-space: nowrap;
}


/* ============================================================
   13. Videos Section
   ============================================================ */
#videos { background-color: rgba(21, 34, 52, 0.88); }

#videos .section-header h2 { background: none; -webkit-text-fill-color: #fff; color: #fff; }
#videos .section-sub { color: rgba(255, 255, 255, 0.46); }

.video-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; max-width: 1100px; margin: 0 auto; }

.video-card {
    background: var(--navy-card);
    border-radius: var(--radius-lg); border: 1px solid var(--border);
    overflow: hidden; box-shadow: var(--shadow-md);
    transition: transform var(--ease), box-shadow var(--ease), border-color var(--ease);
}

.video-card:hover {
    transform: translateY(-5px); box-shadow: var(--shadow-lg);
    border-color: rgba(255, 255, 255, 0.25);
}

.video-wrap { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #000; }
.video-wrap video { width: 100%; height: 100%; object-fit: contain; display: block; }
.video-caption { padding: 1rem 1.25rem; font-size: 0.87rem; color: rgba(255,255,255,0.38); margin: 0; border-top: 1px solid var(--border); }

#videos .video-card { background: var(--navy-card); border-color: var(--border); }
#videos .video-caption { color: rgba(255,255,255,0.38); border-top-color: var(--border); }


/* ============================================================
   14. Trust Strip
   ============================================================ */
.trust-strip {
    display: grid; grid-template-columns: repeat(2, 1fr);
    gap: 1px; background: var(--border);
    border: 1px solid var(--border); border-radius: var(--radius-lg);
    overflow: hidden; margin-bottom: 3.5rem;
}

.trust-strip__item {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 0.3rem; padding: 1.5rem 1rem;
    background: var(--navy-card); text-align: center;
    transition: background var(--ease);
}

.trust-strip__item:hover { background: rgba(255, 255, 255, 0.06); }

.trust-strip__item i { font-size: 1.5rem; color: #fff; margin-bottom: 0.4rem; opacity: 0.80; }

.trust-strip__item span {
    font-family: var(--font-heading); font-size: 0.95rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.06em; color: #fff;
}

.trust-strip__item small { font-family: var(--font-body); font-size: 0.72rem; color: var(--text-muted); letter-spacing: 0.03em; }


/* ============================================================
   15. Contact Section
   ============================================================ */
#contact { background-color: rgba(13, 27, 42, 0.85); }

.contact-container { display: grid; grid-template-columns: 1fr; gap: 3rem; }

.contact-logo img { height: 58px; margin-bottom: 2rem; }

.contact-details { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2rem; }
.contact-details li { display: flex; align-items: center; gap: 1rem; font-size: 0.97rem; color: var(--text-muted); }
.contact-details i { width: 20px; text-align: center; color: rgba(255,255,255,0.60); flex-shrink: 0; font-size: 1rem; }
.contact-details a { transition: color var(--ease); }
.contact-details a:hover { color: #fff; text-decoration: underline; }

.socials { margin-top: 2rem; }
.socials h3 {
    font-family: var(--font-body); font-size: 0.72rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.14em; color: var(--text-muted); margin-bottom: 1rem;
}

.social-icons { display: flex; gap: 1rem; align-items: center; }
.social-icons img {
    width: 36px; height: 36px; border-radius: var(--radius-sm);
    transition: opacity var(--ease), transform var(--ease), box-shadow var(--ease);
}

.social-icons a:hover img {
    opacity: 0.80; transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(74, 158, 219, 0.30);
}

/* Form */
.contact-form form {
    background: var(--navy-card); padding: 2.5rem 2rem;
    border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-md);
}

.form-group { margin-bottom: 1.5rem; }

.form-group label {
    display: flex; align-items: center; justify-content: space-between;
    font-family: var(--font-body); font-weight: 600; font-size: 0.75rem;
    text-transform: uppercase; letter-spacing: 0.10em; color: var(--text-muted); margin-bottom: 0.55rem;
}

.word-count { font-weight: 400; text-transform: none; letter-spacing: 0; font-size: 0.75rem; color: var(--text-muted); }

.form-group input, .form-group textarea {
    width: 100%; padding: 13px 16px;
    background: rgba(21, 34, 52, 0.70);
    border: 1.5px solid var(--border-strong);
    border-radius: var(--radius-sm); color: var(--text);
    font-family: var(--font-body); font-size: 0.97rem; line-height: 1.5;
    -webkit-appearance: none;
    transition: border-color var(--ease), background var(--ease), box-shadow var(--ease);
}

.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(141, 153, 174, 0.55); }

.form-group input:focus, .form-group textarea:focus {
    outline: none; border-color: rgba(255,255,255,0.60);
    background: rgba(21, 34, 52, 0.90);
    box-shadow: 0 0 0 3px rgba(74, 158, 219, 0.14);
}

.form-group textarea { resize: vertical; min-height: 130px; }

.input-valid { border-color: #34C759 !important; box-shadow: 0 0 0 2px rgba(52, 199, 89, 0.14) !important; }
.input-error { border-color: #FF3B30 !important; background: rgba(255, 59, 48, 0.04) !important; }

.form-error {
    background: rgba(255, 59, 48, 0.07); border: 1px solid rgba(255, 59, 48, 0.28);
    border-radius: var(--radius-sm); padding: 12px 16px;
    color: #FF6B6B; font-size: 0.87rem; line-height: 1.72; margin-bottom: 1.25rem;
}

.file-upload-optional { font-weight: 400; font-size: 0.72rem; text-transform: none; letter-spacing: 0; color: var(--text-muted); opacity: 0.72; }

.file-upload-area {
    display: flex; align-items: center; gap: 0.85rem; padding: 16px;
    background: rgba(21, 34, 52, 0.70); border: 1.5px dashed var(--border-strong);
    border-radius: var(--radius-sm); cursor: pointer; color: var(--text-muted);
    font-size: 0.93rem; font-family: var(--font-body); font-weight: 400;
    text-transform: none; letter-spacing: 0;
    transition: border-color var(--ease), background var(--ease), color var(--ease);
}

.file-upload-area:hover { border-color: rgba(255,255,255,0.55); background: rgba(255,255,255,0.04); color: var(--text); }
.file-upload-area i { color: rgba(255,255,255,0.60); font-size: 1.15rem; flex-shrink: 0; }
.file-upload-area input[type="file"] { display: none; }

.file-list { margin-top: 0.6rem; display: flex; flex-wrap: wrap; gap: 0.4rem; }

.file-chip {
    display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.76rem;
    background: rgba(74, 158, 219, 0.10); color: var(--accent);
    border: 1px solid rgba(74, 158, 219, 0.26); border-radius: var(--radius-sm); padding: 4px 12px;
}

.file-chip i { font-size: 0.73rem; }
.file-error { color: #FF6B6B; font-size: 0.84rem; margin: 0.25rem 0 0; }

.form-success {
    background: var(--navy-card); border-radius: var(--radius-lg);
    border: 1px solid rgba(52, 199, 89, 0.22);
    padding: 3rem 2rem; text-align: center; box-shadow: var(--shadow-md);
}

.form-success i { font-size: 3rem; color: #34C759; margin-bottom: 1rem; display: block; }
.form-success h3 { color: #fff; font-size: 1.5rem; margin-bottom: 0.75rem; }
.form-success p { color: var(--text-muted); margin-bottom: 0.5rem; }
.form-success a { color: var(--accent); text-decoration: underline; }
.form-success__sub { font-size: 0.9rem; margin-top: 1rem; }


/* ============================================================
   16. Service Area Strip
   ============================================================ */
#service-area { background-color: rgba(21, 34, 52, 0.88); text-align: center; }

#service-area .section-header h2 { background: none; -webkit-text-fill-color: #fff; color: #fff; }
#service-area .section-sub { color: rgba(255, 255, 255, 0.44); }

.service-area-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 0.55rem; max-width: 860px; margin: 0 auto; }

.area-tag {
    display: inline-block; padding: 6px 16px;
    font-family: var(--font-body); font-size: 0.73rem; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.06em;
    color: rgba(255, 255, 255, 0.52);
    background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-sm);
    transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.area-tag:hover { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.35); }


/* ============================================================
   17. Footer
   ============================================================ */
footer {
    background: var(--navy-deep); padding: 3rem 5% 2rem;
    border-top: 2px solid rgba(255, 255, 255, 0.18);
}

.footer-content {
    display: flex; flex-direction: column; align-items: center; gap: 0.5rem; text-align: center;
}

.footer-content p { margin: 0; font-size: 0.84rem; color: rgba(255, 255, 255, 0.38); }
.footer-content strong { color: rgba(255, 255, 255, 0.65); }
.footer-link { color: rgba(255, 255, 255, 0.50); transition: color var(--ease); }
.footer-link:hover { color: #fff; }

.footer-badges {
    display: flex; flex-wrap: wrap; justify-content: center; gap: 0.75rem;
    margin-top: 1.25rem; padding-top: 1.25rem;
    border-top: 1px solid rgba(255,255,255,0.10); width: 100%;
}

.footer-badge {
    display: inline-flex; align-items: center; gap: 0.45rem;
    font-family: var(--font-body); font-size: 0.72rem; font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.07em;
    color: rgba(255, 255, 255, 0.48);
    padding: 6px 14px;
    border: 1px solid rgba(255, 255, 255, 0.10);
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.04);
}

.footer-badge i { color: rgba(255, 255, 255, 0.65); font-size: 0.85rem; }


/* ============================================================
   18. Back to Top Button
   ============================================================ */
#back-to-top {
    position: fixed; bottom: 28px; right: 28px;
    width: 44px; height: 44px;
    background: rgba(255,255,255,0.12); color: #fff;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: var(--radius-sm);
    display: flex; align-items: center; justify-content: center;
    font-size: 0.95rem; box-shadow: var(--shadow-sm);
    z-index: 999; opacity: 0; pointer-events: none;
    transform: translateY(12px);
    transition: opacity var(--ease), transform var(--ease), background-color var(--ease);
}

#back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }
#back-to-top:hover { background: rgba(255,255,255,0.22); transform: translateY(-3px); }


/* ============================================================
   19. Mobile Floating CTA Bar
   ============================================================ */
.mobile-cta-bar {
    position: fixed; bottom: 0; left: 0; width: 100%; display: flex; z-index: 997;
    box-shadow: 0 -1px 0 var(--border), 0 -6px 24px rgba(0,0,0,0.30);
    transform: translateY(0); transition: transform var(--ease), opacity var(--ease);
}

.mobile-cta-bar--hidden { transform: translateY(100%); opacity: 0; pointer-events: none; }

.mobile-cta-bar__btn {
    flex: 1; display: flex; align-items: center; justify-content: center; gap: 0.5rem;
    padding: 16px 10px; font-family: var(--font-body); font-weight: 700;
    font-size: 0.84rem; letter-spacing: 0.07em; text-transform: uppercase;
    transition: filter var(--ease);
}

.mobile-cta-bar__btn:active { filter: brightness(0.88); }
.mobile-cta-bar__call { background: var(--navy-card); color: var(--text); border-top: 1px solid var(--border); }
.mobile-cta-bar__estimate { background: var(--accent); color: #fff; }
.mobile-cta-bar__btn i { font-size: 1rem; }

@media (max-width: 767px) {
    body { padding-bottom: 58px; }
    #back-to-top { bottom: calc(58px + 16px); }
}

@media (min-width: 768px) { .mobile-cta-bar { display: none; } }


/* ============================================================
   20. Responsive — Tablet (768px+)
   ============================================================ */
@media (min-width: 768px) {

    .nav-toggle { display: none; }

    .nav-links {
        display: flex !important; flex-direction: row; position: static; width: auto;
        background: transparent; backdrop-filter: none; -webkit-backdrop-filter: none;
        padding: 0; gap: 2rem; border-bottom: none; box-shadow: none; align-items: center;
    }

    .nav-link { padding: 0; border-bottom: none; font-size: 0.82rem; position: relative; }

    .nav-link::after {
        content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
        height: 2px; background: rgba(255,255,255,0.60);
        transform: scaleX(0); transition: transform var(--ease); transform-origin: left center;
    }

    .nav-link:hover::after, .nav-link:focus-visible::after { transform: scaleX(1); }
    .nav-link:hover { padding-left: 0; }
    .nav-link--cta { margin-top: 0; padding: 0.5rem 1.2rem; }
    .nav-link--cta::after { display: none; }

    .about-grid { grid-template-columns: 1fr 1fr; }
    .about-card--values { grid-column: 1 / -1; }
    .services-grid { grid-template-columns: repeat(3, 1fr); }
    .services-cta { flex-direction: row; justify-content: center; }
    .filter-btn { padding: 9px 20px; font-size: 0.76rem; }
    .work-gallery { grid-template-columns: repeat(3, 1fr); gap: 10px; }
    .video-grid { grid-template-columns: repeat(2, 1fr); }
    .trust-strip { grid-template-columns: repeat(4, 1fr); }
    .contact-container { grid-template-columns: 1fr 1.6fr; align-items: start; }
    .contact-form form { padding: 2.75rem; }
}


/* ============================================================
   21. Responsive — Desktop (1024px+)
   ============================================================ */
@media (min-width: 1024px) {
    #hero { background-attachment: fixed; }
    .about-grid { grid-template-columns: 1.1fr 0.9fr 1fr; }
    .about-card--values { grid-column: auto; }
    .services-grid { grid-template-columns: repeat(4, 1fr); }
    .work-gallery { grid-template-columns: repeat(4, 1fr); }
    .video-grid { grid-template-columns: repeat(3, 1fr); }
    .lightbox__prev { left: 2rem; }
    .lightbox__next { right: 2rem; }
}


/* ============================================================
   22. Large Desktop (1280px+)
   ============================================================ */
@media (min-width: 1280px) {
    section { padding: 112px 8%; }
    .work-gallery { gap: 12px; }
}


/* ============================================================
   23. Accessibility — Reduced Motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
    #hero, body { background-attachment: scroll; }
    [data-reveal] { opacity: 1; transform: none; }
    .lightbox { animation: none; }
}