/* ============================================================
   ENNETTE INTERNATIONAL LTD
   Light Corporate One-Page Website — Hong Kong
   Colors: Ink #1C2B3A | Blue #2B7BC4 | Sky #6FB4E5 | Soft #F6FAFD
   Fonts:  Montserrat (headings) + Open Sans (body)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800&family=Open+Sans:wght@300;400;500;600&display=swap');

/* ---- RESET & BASE ---- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --ink: #1C2B3A;
    --muted: #667C93;
    --blue: #2B7BC4;
    --blue-dark: #1F5E9B;
    --sky: #6FB4E5;
    --tint: #E9F2FA;
    --soft: #F6FAFD;
    --white: #FFFFFF;
    --border: #E3EBF3;
    --shadow-sm: 0 2px 10px rgba(28, 43, 58, 0.05);
    --shadow: 0 6px 24px rgba(28, 43, 58, 0.07);
    --shadow-lg: 0 14px 40px rgba(28, 43, 58, 0.10);
    --radius: 14px;
    --transition: 0.28s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Open Sans', sans-serif;
    color: var(--ink);
    background: var(--white);
    line-height: 1.7;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

img,
svg {
    max-width: 100%;
    display: block;
}

ul {
    list-style: none;
}

.container {
    width: 90%;
    max-width: 1160px;
    margin: 0 auto;
}

/* ---- BUTTONS ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 13px 30px;
    border-radius: 50px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: all var(--transition);
    border: 1.5px solid transparent;
}

.btn-primary {
    background: var(--blue);
    color: var(--white);
}

.btn-primary:hover {
    background: var(--blue-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(43, 123, 196, 0.25);
}

.btn-light {
    background: var(--white);
    color: var(--blue);
    border-color: var(--border);
}

.btn-light:hover {
    border-color: var(--blue);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* ---- SECTION HELPERS ---- */
.section {
    padding: 92px 0;
}

.section-soft {
    background: var(--soft);
}

.section-eyebrow {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.74rem;
    letter-spacing: 2.4px;
    text-transform: uppercase;
    color: var(--blue);
    margin-bottom: 12px;
    text-align: center;
}

.section-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: clamp(1.7rem, 3.4vw, 2.5rem);
    line-height: 1.25;
    color: var(--ink);
    margin-bottom: 16px;
    letter-spacing: -0.3px;
    text-align: center;
}

.section-subtitle {
    text-align: center;
    color: var(--muted);
    max-width: 660px;
    margin: 0 auto 52px;
    font-size: 1rem;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
}

#navbar.scrolled {
    background: rgba(255, 255, 255, 0.97);
    padding: 10px 0;
    border-bottom-color: var(--border);
    box-shadow: 0 2px 18px rgba(28, 43, 58, 0.06);
}

.nav-container {
    width: 90%;
    max-width: 1160px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 11px;
}

.nav-mark {
    width: 40px;
    height: 40px;
    border-radius: 11px;
    background: var(--blue);
    display: grid;
    place-items: center;
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    color: #fff;
    font-size: 1.15rem;
    flex: none;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-main {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.08rem;
    letter-spacing: 0.6px;
    color: var(--ink);
}

.brand-sub {
    font-size: 0.62rem;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: var(--muted);
    font-weight: 600;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 3px;
}

.nav-link {
    display: block;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.87rem;
    color: var(--muted);
    padding: 9px 15px;
    border-radius: 50px;
    transition: all var(--transition);
}

.nav-link:hover {
    color: var(--blue);
    background: var(--tint);
}

.nav-link.active {
    color: var(--blue);
    background: var(--tint);
}

.nav-link.contact-btn {
    background: var(--blue);
    color: var(--white);
    margin-left: 8px;
}

.nav-link.contact-btn:hover,
.nav-link.contact-btn.active {
    background: var(--blue-dark);
    color: var(--white);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2.5px;
    border-radius: 2px;
    background: var(--ink);
    transition: all var(--transition);
}

/* ============================================================
   HERO  (centred, no illustration)
   ============================================================ */
.hero {
    background: linear-gradient(170deg, var(--soft) 0%, var(--tint) 55%, #DCEBF8 100%);
    position: relative;
    overflow: hidden;
    padding: 170px 0 104px;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    top: -200px;
    right: -140px;
    background: radial-gradient(circle, rgba(111, 180, 229, 0.28) 0%, transparent 70%);
}

.hero::after {
    content: '';
    position: absolute;
    width: 380px;
    height: 380px;
    border-radius: 50%;
    bottom: -180px;
    left: -120px;
    background: radial-gradient(circle, rgba(43, 123, 196, 0.14) 0%, transparent 70%);
}

.hero-inner {
    position: relative;
    z-index: 2;
    max-width: 820px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--white);
    border: 1px solid var(--border);
    color: var(--blue);
    padding: 7px 17px;
    border-radius: 50px;
    font-family: 'Montserrat', sans-serif;
    font-size: 0.73rem;
    font-weight: 600;
    letter-spacing: 1.3px;
    text-transform: uppercase;
    margin-bottom: 26px;
    box-shadow: var(--shadow-sm);
}

.hero-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    font-size: clamp(2rem, 4.8vw, 3.4rem);
    line-height: 1.15;
    color: var(--ink);
    letter-spacing: -0.8px;
    margin-bottom: 22px;
}

.hero-highlight {
    color: var(--blue);
}

.hero-desc {
    color: var(--muted);
    font-size: 1.06rem;
    max-width: 640px;
    margin: 0 auto 34px;
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 13px;
    justify-content: center;
}

/* ============================================================
   ABOUT  (centred, no side card)
   ============================================================ */
.about-intro {
    max-width: 800px;
    margin: 0 auto 46px;
    text-align: center;
}

.about-text {
    color: var(--muted);
    font-size: 1.01rem;
    margin-bottom: 16px;
}

.about-text:last-child {
    margin-bottom: 0;
}

.about-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.about-detail {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px 22px;
    text-align: center;
    transition: all var(--transition);
}

.about-detail:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--sky);
}

.about-detail i {
    width: 48px;
    height: 48px;
    margin: 0 auto 15px;
    border-radius: 13px;
    background: var(--tint);
    color: var(--blue);
    display: grid;
    place-items: center;
    font-size: 1.1rem;
    transition: all var(--transition);
}

.about-detail:hover i {
    background: var(--blue);
    color: var(--white);
}

.about-detail h5 {
    font-family: 'Montserrat', sans-serif;
    font-size: 0.94rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 6px;
}

.about-detail p {
    font-size: 0.88rem;
    color: var(--muted);
    line-height: 1.6;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
    gap: 24px;
}

.service-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 28px;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--blue);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--sky);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 58px;
    height: 58px;
    border-radius: 15px;
    background: var(--tint);
    color: var(--blue);
    display: grid;
    place-items: center;
    font-size: 1.35rem;
    margin-bottom: 20px;
    transition: all var(--transition);
}

.service-card:hover .service-icon {
    background: var(--blue);
    color: var(--white);
}

.service-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--ink);
    margin-bottom: 9px;
}

.service-card>p {
    color: var(--muted);
    font-size: 0.93rem;
    margin-bottom: 18px;
}

.service-list {
    border-top: 1px solid var(--border);
    padding-top: 6px;
}

.service-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 0.91rem;
    color: var(--ink);
    font-weight: 500;
}

.service-list li i {
    color: var(--sky);
    font-size: 0.68rem;
}

/* ============================================================
   CONTACT  (info only)
   ============================================================ */
.contact-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 22px;
}

.contact-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 32px 26px;
    text-align: center;
    transition: all var(--transition);
}

.contact-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--sky);
}

.cc-icon {
    width: 54px;
    height: 54px;
    margin: 0 auto 16px;
    border-radius: 14px;
    background: var(--tint);
    color: var(--blue);
    display: grid;
    place-items: center;
    font-size: 1.2rem;
    transition: all var(--transition);
}

.contact-card:hover .cc-icon {
    background: var(--blue);
    color: var(--white);
}

.contact-card h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--ink);
    margin-bottom: 8px;
    letter-spacing: 0.3px;
}

.contact-card p {
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.65;
}

.contact-card .email-text {
    color: var(--blue);
    font-weight: 600;
    word-break: break-word;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
    background: var(--soft);
    border-top: 1px solid var(--border);
    padding: 56px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr 1.2fr;
    gap: 42px;
    padding-bottom: 38px;
}

.footer-brand-row {
    display: flex;
    align-items: center;
    gap: 11px;
    margin-bottom: 14px;
}

.footer-tagline {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--blue);
    margin-bottom: 12px;
}

.footer-copy {
    font-size: 0.84rem;
    color: var(--muted);
}

.footer h5 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 0.78rem;
    letter-spacing: 1.8px;
    text-transform: uppercase;
    color: var(--ink);
    margin-bottom: 18px;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links li span {
    font-size: 0.91rem;
    color: var(--muted);
}

.footer-contact p {
    display: flex;
    gap: 11px;
    margin-bottom: 12px;
    font-size: 0.9rem;
    color: var(--muted);
    line-height: 1.6;
}

.footer-contact i {
    color: var(--blue);
    margin-top: 6px;
    flex: none;
}

.footer-bottom {
    border-top: 1px solid var(--border);
    padding: 20px 0;
    text-align: center;
    font-size: 0.82rem;
    color: var(--muted);
}

/* ---- BACK TO TOP ---- */
#backToTop {
    position: fixed;
    bottom: 26px;
    right: 26px;
    z-index: 900;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: none;
    background: var(--blue);
    color: var(--white);
    font-size: 0.95rem;
    cursor: pointer;
    box-shadow: 0 8px 22px rgba(43, 123, 196, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all var(--transition);
}

#backToTop.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#backToTop:hover {
    background: var(--blue-dark);
    transform: translateY(-3px);
}

/* ---- SCROLL REVEAL ---- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 991px) {
    .section {
        padding: 72px 0;
    }

    .hero {
        padding: 148px 0 84px;
    }

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

@media (max-width: 820px) {
    .nav-toggle {
        display: flex;
    }

    .nav-links {
        position: absolute;
        top: 100%;
        left: 5%;
        right: 5%;
        flex-direction: column;
        align-items: stretch;
        gap: 3px;
        background: var(--white);
        border: 1px solid var(--border);
        border-radius: var(--radius);
        box-shadow: var(--shadow-lg);
        padding: 0 12px;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        pointer-events: none;
        transition: all var(--transition);
    }

    .nav-links.open {
        max-height: 420px;
        opacity: 1;
        pointer-events: auto;
        padding: 12px;
    }

    .nav-link {
        text-align: center;
    }

    .nav-link.contact-btn {
        margin-left: 0;
        margin-top: 4px;
    }
}

@media (max-width: 620px) {
    .section {
        padding: 58px 0;
    }

    .hero {
        padding: 132px 0 72px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-ctas .btn {
        width: 100%;
        justify-content: center;
    }

    .service-card,
    .contact-card,
    .about-detail {
        padding: 26px 22px;
    }
}

/* ---- ACCESSIBILITY ---- */
:focus-visible {
    outline: 3px solid var(--sky);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        transition-duration: 0.001ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}