/* ============================================================
   City2Day — Hotel Management & Self Check-In
   Design System CSS  (RTL/LTR ready — logical properties)
   Brand: Deep Royal Blue #1E3C96 · Sky Blue #1EA5F0
   ============================================================ */

:root {
    /* ---- Brand palette ---- */
    --c2d-blue-900: #0F1F5C;
    --c2d-blue-800: #1E2D96;
    --c2d-blue-700: #1E3C96;   /* PRIMARY */
    --c2d-blue-600: #2350B8;
    --c2d-blue-500: #1EA5F0;   /* ACCENT  */
    --c2d-blue-400: #5BBFF5;
    --c2d-blue-100: #E8F4FD;
    --c2d-blue-50:  #EBF3FD;
    --c2d-ink:      #16213D;
    --c2d-slate:    #5D6B8A;
    --c2d-slate-300:#9AA6BF;
    --c2d-line:     #DCE6F5;
    --c2d-line-strong: #C3D3EC;
    --c2d-cloud:    #F5F8FD;
    --c2d-white:    #FFFFFF;
    --c2d-success:  #1E9E6A;
    --c2d-success-tint: #E6F6EE;
    --c2d-error:    #D64545;
    --c2d-error-tint: #FBE7E7;
    --c2d-warning:  #E0A100;
    --c2d-warning-tint: #FBF1D6;
    --c2d-star:     #F6A609;
    --c2d-whatsapp: #25D366;

    --c2d-gradient: linear-gradient(135deg, #1E3C96 0%, #1EA5F0 100%);
    --c2d-gradient-dark: linear-gradient(160deg, #0F1F5C 0%, #1E3C96 100%);

    /* ---- Semantic aliases ---- */
    --primary:        var(--c2d-blue-700);
    --primary-hover:  var(--c2d-blue-600);
    --accent:         var(--c2d-blue-500);
    --accent-hover:   var(--c2d-blue-400);
    --text-strong:    var(--c2d-ink);
    --text-primary:   var(--c2d-blue-700);
    --text-secondary: var(--c2d-slate);
    --text-muted:     var(--c2d-slate-300);
    --surface-page:   var(--c2d-cloud);
    --surface-card:   var(--c2d-white);
    --surface-tint:   var(--c2d-blue-50);
    --surface-calm:   var(--c2d-blue-100);
    --surface-dark:   var(--c2d-blue-900);
    --border-default: var(--c2d-line);

    /* ---- Type ---- */
    --font-base: 'Cairo', 'Segoe UI', Tahoma, sans-serif;
    --fs-display: clamp(1.9rem, 4.2vw, 3.1rem);
    --fs-h2:      clamp(1.45rem, 3vw, 2.1rem);
    --fs-h3:      clamp(1.15rem, 2.2vw, 1.45rem);
    --fs-body:    1rem;
    --fs-small:   .875rem;

    /* ---- Shape & elevation ---- */
    --radius-btn:  12px;
    --radius-card: 18px;
    --radius-pill: 999px;
    --shadow-xs:   0 2px 6px rgba(30, 60, 150, .06);
    --shadow-sm:   0 6px 16px rgba(30, 60, 150, .10);
    --shadow-soft: 0 14px 35px rgba(30, 60, 150, .14);
    --shadow-lg:   0 24px 60px rgba(15, 31, 92, .22);
    --focus-ring:  0 0 0 3px rgba(30, 165, 240, .30);

    /* ---- Spacing & layout ---- */
    --space-xs: .5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3.5rem;
    --space-xl: 5.5rem;
    --header-h: 72px;
    --container-max: 1200px;

    /* ---- Motion ---- */
    --ease-out: cubic-bezier(.22, .61, .36, 1);
    --dur-fast: 160ms;
    --dur-med:  260ms;
    --dur-slow: 420ms;
}

[lang="en"] body,
body.lang-en {
    --font-base: 'Montserrat', 'Segoe UI', Arial, sans-serif;
}

/* ============ Base ============ */
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-base);
    font-size: var(--fs-body);
    line-height: 1.7;
    color: var(--text-strong);
    background-color: var(--surface-page);
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 { font-weight: 700; color: var(--text-strong); line-height: 1.35; }

a { color: var(--accent); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--primary); }

img, video { max-width: 100%; height: auto; }

::selection { background: var(--c2d-blue-500); color: #fff; }

/* ============ Utilities ============ */
.text-accent  { color: var(--accent) !important; }
.text-primary-c2d { color: var(--primary) !important; }
.bg-tint { background-color: var(--surface-tint); }
.bg-calm { background-color: var(--surface-calm); }
.bg-cloud { background-color: var(--surface-page); }

.section { padding-block: var(--space-xl); }
.section-sm { padding-block: var(--space-lg); }

.section-head { max-width: 720px; margin-inline: auto; text-align: center; margin-block-end: var(--space-lg); }
.section-head .overline {
    display: inline-block;
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--accent);
    background: var(--surface-tint);
    border: 1px solid var(--c2d-line);
    border-radius: var(--radius-pill);
    padding: .3rem 1rem;
    margin-block-end: .9rem;
}
.section-head h2 { font-size: var(--fs-h2); font-weight: 800; margin-block-end: .6rem; }
.section-head p  { color: var(--text-secondary); margin-block-end: 0; }

/* ============ Buttons ============ */
.btn-c2d {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    font-family: var(--font-base);
    font-weight: 700;
    font-size: 1rem;
    padding: .72rem 1.7rem;
    border-radius: var(--radius-btn);
    border: 0;
    background-image: var(--c2d-gradient);
    color: #fff;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) var(--ease-out),
                filter var(--dur-fast) var(--ease-out);
    cursor: pointer;
    text-decoration: none;
}
.btn-c2d:hover  { color: #fff; filter: brightness(1.07); transform: translateY(-1px); box-shadow: var(--shadow-soft); }
.btn-c2d:active { transform: translateY(0); }
.btn-c2d:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.btn-c2d-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    font-family: var(--font-base);
    font-weight: 700;
    font-size: 1rem;
    padding: .66rem 1.6rem;
    border-radius: var(--radius-btn);
    border: 1.5px solid var(--accent);
    color: var(--primary);
    background: transparent;
    transition: background-color var(--dur-fast) var(--ease-out),
                transform var(--dur-fast) var(--ease-out);
    cursor: pointer;
    text-decoration: none;
}
.btn-c2d-outline:hover { background-color: var(--surface-tint); color: var(--primary); transform: translateY(-1px); }
.btn-c2d-outline:focus-visible { outline: none; box-shadow: var(--focus-ring); }

.btn-c2d-light {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    font-weight: 700;
    padding: .72rem 1.7rem;
    border-radius: var(--radius-btn);
    border: 0;
    background: #fff;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
    text-decoration: none;
}
.btn-c2d-light:hover { color: var(--primary); transform: translateY(-1px); box-shadow: var(--shadow-soft); }

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    font-weight: 700;
    padding: .66rem 1.6rem;
    border-radius: var(--radius-btn);
    border: 0;
    background: var(--c2d-whatsapp);
    color: #fff;
    transition: filter var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
    text-decoration: none;
}
.btn-whatsapp:hover { color: #fff; filter: brightness(1.06); transform: translateY(-1px); }

/* ============ Header ============ */
.c2d-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(255, 255, 255, .92);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-block-end: 1px solid transparent;
    transition: box-shadow var(--dur-med) var(--ease-out), border-color var(--dur-med) var(--ease-out);
}
.c2d-header.is-scrolled { border-color: var(--c2d-line); box-shadow: var(--shadow-xs); }

.c2d-header .navbar { min-height: var(--header-h); padding-block: .55rem; }
.c2d-header .navbar-brand img { height: 44px; width: auto; }

.c2d-header .nav-link {
    font-weight: 600;
    color: var(--text-strong);
    padding: .45rem 1rem !important;
    border-radius: var(--radius-pill);
    white-space: nowrap;
    transition: background-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
body.lang-en .c2d-header .nav-link { font-size: .88rem; padding: .45rem .75rem !important; }
.c2d-header .nav-link:hover { color: var(--primary); background-color: var(--surface-tint); }
.c2d-header .nav-link.active { color: var(--primary); background-color: var(--surface-tint); }

.lang-switch {
    font-weight: 700;
    font-size: .85rem;
    color: var(--primary);
    border: 1.5px solid var(--c2d-line-strong);
    border-radius: var(--radius-pill);
    padding: .32rem .95rem;
    transition: border-color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}
.lang-switch:hover { border-color: var(--accent); background: var(--surface-tint); color: var(--primary); }

/* Offcanvas mobile nav */
.offcanvas-c2d .offcanvas-header { border-block-end: 1px solid var(--c2d-line); }
.offcanvas-c2d .nav-link { font-weight: 700; font-size: 1.05rem; padding: .8rem 1rem; border-radius: var(--radius-btn); color: var(--text-strong); }
.offcanvas-c2d .nav-link:hover, .offcanvas-c2d .nav-link.active { background: var(--surface-tint); color: var(--primary); }

/* ============ Hero ============ */
.hero {
    position: relative;
    isolation: isolate;
    background-color: var(--c2d-blue-900);
    background-image: var(--c2d-gradient-dark);
    color: #fff;
    overflow: hidden;
}
.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background:
        radial-gradient(720px 420px at 82% 8%, rgba(30, 165, 240, .35), transparent 65%),
        radial-gradient(560px 380px at 8% 95%, rgba(30, 165, 240, .16), transparent 60%);
}
.hero-pad { padding-block: clamp(3.2rem, 7vw, 6rem); }
.hero h1 {
    color: #fff;
    font-size: var(--fs-display);
    font-weight: 800;
    line-height: 1.3;
    margin-block-end: 1rem;
}
.hero h1 .hl { color: var(--c2d-blue-400); }
.hero .lead-c2d {
    color: rgba(255, 255, 255, .85);
    font-size: clamp(1rem, 1.6vw, 1.15rem);
    max-width: 560px;
    margin-block-end: 1.7rem;
}
.hero .hero-badges { display: flex; flex-wrap: wrap; gap: .6rem; margin-block-start: 1.6rem; }
.hero .hero-badge {
    font-size: .82rem;
    font-weight: 600;
    color: #fff;
    background: rgba(255, 255, 255, .10);
    border: 1px solid rgba(255, 255, 255, .22);
    border-radius: var(--radius-pill);
    padding: .32rem .9rem;
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
}
.hero-media { position: relative; }
.hero-media img, .hero-media video {
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-lg);
}
.hero-media .glow {
    position: absolute;
    inset: 10% 6% 4% 6%;
    background: radial-gradient(closest-side, rgba(30, 165, 240, .45), transparent);
    filter: blur(30px);
    z-index: -1;
}

/* Inner-page hero (smaller) */
.hero-inner .hero-pad { padding-block: clamp(2.6rem, 5vw, 4rem); }
.breadcrumb-c2d { --bs-breadcrumb-divider-color: rgba(255,255,255,.5); margin-block-end: .9rem; }
.breadcrumb-c2d .breadcrumb-item, .breadcrumb-c2d a { color: rgba(255, 255, 255, .75); font-size: .85rem; font-weight: 600; }
.breadcrumb-c2d a:hover { color: #fff; }
.breadcrumb-c2d .active { color: #fff; }

/* ============ Stats ============ */
.stats-band { background: var(--surface-card); border-block: 1px solid var(--c2d-line); }
.stat-box { text-align: center; padding: 1.6rem .8rem; }
.stat-box .stat-num {
    font-size: clamp(1.7rem, 3.4vw, 2.5rem);
    font-weight: 800;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
    line-height: 1.15;
    direction: ltr; /* keeps "245+" order correct in RTL */
}
.stat-box .stat-num .plus { color: var(--accent); }
.stat-box .stat-label { color: var(--text-secondary); font-weight: 600; margin-block-start: .15rem; }

/* ============ Cards ============ */
.card-c2d {
    background: var(--surface-card);
    border: 1px solid var(--c2d-line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-xs);
    transition: transform var(--dur-med) var(--ease-out), box-shadow var(--dur-med) var(--ease-out);
    height: 100%;
}
.card-c2d:hover { transform: translateY(-3px); box-shadow: var(--shadow-soft); }
.card-c2d .card-body { padding: 1.6rem; }

.icon-chip {
    width: 54px;
    height: 54px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--surface-tint);
    color: var(--accent);
    margin-block-end: 1rem;
    flex: 0 0 auto;
}
.icon-chip svg { width: 26px; height: 26px; }
.icon-chip-grad { background-image: var(--c2d-gradient); color: #fff; }

.feature-card h3, .feature-card h4 { font-size: 1.08rem; font-weight: 700; margin-block-end: .45rem; }
.feature-card p { color: var(--text-secondary); font-size: .93rem; margin-block-end: 0; }

/* Service cards (home) */
.service-card { overflow: hidden; display: flex; flex-direction: column; }
.service-card .service-media { position: relative; aspect-ratio: 16 / 10; overflow: hidden; background: var(--surface-tint); }
.service-card .service-media img { width: 100%; height: 100%; object-fit: cover; transition: transform var(--dur-slow) var(--ease-out); }
.service-card:hover .service-media img { transform: scale(1.045); }
.service-card .card-body { display: flex; flex-direction: column; flex: 1 1 auto; }
.service-card .card-body .mt-link { margin-block-start: auto; padding-block-start: 1rem; font-weight: 700; }
.arrow-link { display: inline-flex; align-items: center; gap: .4rem; font-weight: 700; color: var(--accent); }
.arrow-link svg { transition: transform var(--dur-fast) var(--ease-out); }
.arrow-link:hover svg { transform: translateX(-4px); }
[dir="ltr"] .arrow-link:hover svg { transform: translateX(4px); }

/* ============ Steps / Timeline ============ */
.step-card { position: relative; padding: 1.5rem; }
.step-num {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-pill);
    background-image: var(--c2d-gradient);
    color: #fff;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: var(--shadow-sm);
    margin-block-end: .9rem;
    font-variant-numeric: tabular-nums;
}
.step-card h3 { font-size: 1.05rem; }
.step-card p { color: var(--text-secondary); font-size: .92rem; margin-block-end: 0; }

/* ============ Checklist ============ */
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { display: flex; align-items: flex-start; gap: .7rem; padding-block: .45rem; color: var(--text-secondary); }
.check-list li strong { color: var(--text-strong); }
.check-list .ck {
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    margin-block-start: .22rem;
    border-radius: 50%;
    background: var(--c2d-success-tint);
    color: var(--c2d-success);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.check-list .ck svg { width: 13px; height: 13px; }

/* ============ Media / video ============ */
.media-frame {
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--c2d-line);
    background: #000;
}
.media-frame img, .media-frame video { display: block; width: 100%; height: auto; }

/* YouTube lite embed (loads iframe on click only) */
.yt-lite {
    position: relative;
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--c2d-blue-900);
    background-size: cover;
    background-position: center;
    border-radius: var(--radius-card);
    overflow: hidden;
    cursor: pointer;
    border: 0;
    box-shadow: var(--shadow-soft);
}
.yt-lite::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(15, 31, 92, .08), rgba(15, 31, 92, .38));
    transition: background var(--dur-med) var(--ease-out);
}
.yt-lite:hover::after { background: linear-gradient(180deg, rgba(15, 31, 92, .0), rgba(15, 31, 92, .25)); }
.yt-lite .yt-play {
    position: absolute;
    inset: 0;
    margin: auto;
    width: 76px;
    height: 76px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    box-shadow: var(--shadow-soft);
    transition: transform var(--dur-fast) var(--ease-out);
}
.yt-lite:hover .yt-play { transform: scale(1.07); }
.yt-lite .yt-play svg { width: 30px; height: 30px; color: var(--primary); margin-left: 4px; }
.yt-lite iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; z-index: 3; }
.yt-vertical { aspect-ratio: 9 / 16; max-width: 360px; margin-inline: auto; }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.gallery-grid .g-item { border-radius: var(--radius-card); overflow: hidden; border: 1px solid var(--c2d-line); box-shadow: var(--shadow-xs); }
.gallery-grid .g-item img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; transition: transform var(--dur-slow) var(--ease-out); }
.gallery-grid .g-item:hover img { transform: scale(1.05); }
@media (max-width: 767.98px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); gap: .7rem; } }

/* ============ Integrations ============ */
.integration-card { text-align: center; padding: 1.5rem 1rem; }
.integration-card .int-logo {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-block-end: .9rem;
}
.integration-card .int-logo img { max-height: 60px; width: auto; }
.integration-card h4 { font-size: .98rem; font-weight: 700; margin-block-end: .3rem; }
.integration-card p { font-size: .85rem; color: var(--text-secondary); margin-block-end: 0; }

/* ============ FAQ ============ */
.faq-acc .accordion-item {
    border: 1px solid var(--c2d-line);
    border-radius: var(--radius-card) !important;
    margin-block-end: .9rem;
    overflow: hidden;
    background: var(--surface-card);
    box-shadow: var(--shadow-xs);
}
.faq-acc .accordion-button {
    font-family: var(--font-base);
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-strong);
    background: var(--surface-card);
    padding: 1.05rem 1.3rem;
    box-shadow: none;
}
.faq-acc .accordion-button:not(.collapsed) { color: var(--primary); background: var(--surface-tint); }
.faq-acc .accordion-button:focus { box-shadow: var(--focus-ring); }
.faq-acc .accordion-body { color: var(--text-secondary); padding: 1.1rem 1.3rem; }

/* ============ Forms ============ */
.form-c2d .form-label { font-weight: 700; font-size: .9rem; margin-block-end: .35rem; }
.form-c2d .form-control, .form-c2d .form-select {
    font-family: var(--font-base);
    border: 1.5px solid var(--c2d-line-strong);
    border-radius: var(--radius-btn);
    padding: .68rem .95rem;
    color: var(--text-strong);
    background-color: #fff;
    transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.form-c2d .form-control::placeholder { color: var(--text-muted); }
.form-c2d .form-control:focus, .form-c2d .form-select:focus {
    border-color: var(--accent);
    box-shadow: var(--focus-ring);
    outline: none;
}
.contact-info-card { padding: 1.5rem; }
.contact-info-card .ci-row { display: flex; align-items: flex-start; gap: .9rem; padding-block: .7rem; }
.contact-info-card .ci-row + .ci-row { border-block-start: 1px dashed var(--c2d-line); }
.contact-info-card .ci-label { font-size: .82rem; color: var(--text-secondary); font-weight: 600; margin-block-end: .1rem; }
.contact-info-card .ci-value { font-weight: 700; color: var(--text-strong); }
.contact-info-card .ci-value a { color: var(--text-strong); }
.contact-info-card .ci-value a:hover { color: var(--accent); }
.dir-ltr { direction: ltr; unicode-bidi: embed; }

/* ============ CTA band ============ */
.cta-band {
    position: relative;
    isolation: isolate;
    background-image: var(--c2d-gradient);
    border-radius: var(--radius-card);
    color: #fff;
    padding: clamp(2rem, 4.5vw, 3.4rem);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
}
.cta-band::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: radial-gradient(420px 260px at 85% 20%, rgba(255, 255, 255, .16), transparent 60%);
}
.cta-band h2 { color: #fff; font-weight: 800; font-size: var(--fs-h2); }
.cta-band p { color: rgba(255, 255, 255, .85); }

/* ============ Prose (Terms / Privacy) ============ */
.prose { max-width: 820px; margin-inline: auto; }
.prose h2 { font-size: 1.28rem; font-weight: 800; color: var(--primary); margin-block: 2.1rem .7rem; }
.prose h3 { font-size: 1.08rem; font-weight: 700; margin-block: 1.5rem .5rem; }
.prose p, .prose li { color: var(--text-secondary); }
.prose ul { padding-inline-start: 1.2rem; }
.prose .doc-meta { font-size: .85rem; color: var(--text-muted); }

/* ============ Footer ============ */
.c2d-footer { background-color: var(--surface-dark); color: rgba(255, 255, 255, .78); }
.c2d-footer .footer-main { padding-block: var(--space-lg) var(--space-md); }
.c2d-footer h6 {
    color: #fff;
    font-weight: 700;
    font-size: .95rem;
    margin-block-end: 1.1rem;
}
.c2d-footer ul { list-style: none; padding: 0; margin: 0; }
.c2d-footer ul li { margin-block-end: .55rem; }
.c2d-footer a { color: rgba(255, 255, 255, .72); transition: color var(--dur-fast) var(--ease-out); }
.c2d-footer a:hover { color: var(--c2d-blue-400); }
.c2d-footer .footer-brand img { height: 42px; width: auto; margin-block-end: 1rem; }
.c2d-footer .footer-about { font-size: .9rem; color: rgba(255, 255, 255, .62); max-width: 300px; }
.c2d-footer .social-row { display: flex; gap: .6rem; margin-block-start: 1.1rem; }
.c2d-footer .social-link {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: rgba(255, 255, 255, .08);
    border: 1px solid rgba(255, 255, 255, .14);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    transition: background-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.c2d-footer .social-link:hover { background: var(--c2d-blue-500); color: #fff; transform: translateY(-2px); }
.c2d-footer .social-link svg { width: 17px; height: 17px; }
.c2d-footer .footer-bottom {
    border-block-start: 1px solid rgba(255, 255, 255, .12);
    padding-block: 1.1rem;
    font-size: .85rem;
    color: rgba(255, 255, 255, .55);
}
.c2d-footer .footer-bottom a { color: rgba(255, 255, 255, .65); }
.c2d-footer .footer-bottom a:hover { color: #fff; }

/* ============ Back to top ============ */
.back-top {
    position: fixed;
    inset-inline-end: 1.2rem;
    inset-block-end: 1.2rem;
    width: 44px;
    height: 44px;
    border-radius: var(--radius-btn);
    background-image: var(--c2d-gradient);
    color: #fff;
    border: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: opacity var(--dur-med) var(--ease-out), transform var(--dur-med) var(--ease-out), visibility var(--dur-med);
    z-index: 1020;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }

/* ============ 404 ============ */
.nf-code {
    font-size: clamp(5rem, 16vw, 9rem);
    font-weight: 800;
    line-height: 1;
    background-image: var(--c2d-gradient);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ============ Reveal animations ============ */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); will-change: opacity, transform; }
.reveal.in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: .08s; }
.reveal-d2 { transition-delay: .16s; }
.reveal-d3 { transition-delay: .24s; }
.reveal-d4 { transition-delay: .32s; }

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .card-c2d, .btn-c2d, .service-card .service-media img, .gallery-grid .g-item img { transition: none; }
    *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}

/* ============ Responsive tweaks ============ */
@media (max-width: 991.98px) {
    :root { --space-xl: 4rem; }
    .hero-media { margin-block-start: 2.2rem; }
}
@media (max-width: 575.98px) {
    :root { --space-xl: 3.2rem; }
    .c2d-header .navbar-brand img { height: 38px; }
    .btn-c2d, .btn-c2d-outline { width: 100%; }
    .hero .d-flex.gap-3 { flex-direction: column; }
}