/* =====================================================
   LANDING QUÀ TRUNG THU DOANH NGHIỆP — STYLE
   Palette: navy #0c1b2d | gold #cc8e08 | cream #f6ebc6
   ===================================================== */

:root {
    --navy:       #0c1b2d;
    --navy-2:     #12253c;
    --gold:       #cc8e08;
    --gold-light: #e2b971;
    --cream:      #f6ebc6;
    --ivory:      #fefdf2;
    --ink:        #4c4949;
    --font-serif: 'Playfair Display', 'Times New Roman', serif;
    --font-sans:  'Be Vietnam Pro', system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-sans);
    color: var(--ink);
    background: var(--navy);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

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

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.center    { text-align: center; }

/* ---------- Typography ---------- */
.sec-title {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: clamp(30px, 4.2vw, 50px);
    line-height: 1.2;
    color: var(--gold);
    text-transform: capitalize;
    margin-bottom: 22px;
}
.sec-kicker {
    font-size: 14px;
    letter-spacing: 4px;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
}
.sec-desc {
    font-size: 16px;
    max-width: 720px;
}
.center.sec-desc, .sec-desc.center { margin-left: auto; margin-right: auto; }
.section-navy  { background: var(--navy);  color: var(--cream); }
.section-navy .sec-desc { color: var(--cream); }
.section-cream { background: var(--ivory); }
.section-white { background: #fff; }

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 13px 34px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 1.5px;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
    font-family: var(--font-sans);
}
.btn:hover { transform: translateY(-2px); }
.btn-gold {
    background: linear-gradient(135deg, var(--gold-light), var(--gold));
    color: var(--navy);
    box-shadow: 0 6px 18px rgba(204, 142, 8, .35);
}
.btn-gold:hover { box-shadow: 0 10px 26px rgba(204, 142, 8, .5); }
.btn-outline {
    background: transparent;
    color: var(--gold);
    border: 1.5px solid var(--gold);
}
.btn-outline:hover { background: var(--gold); color: #fff; }
.btn-lg { padding: 16px 46px; font-size: 15px; }

/* =====================================================
   HERO
   ===================================================== */
.hero {
    position: relative;
    background:
        radial-gradient(1100px 500px at 85% -10%, #1d3a5c 0%, transparent 60%),
        linear-gradient(180deg, #0a1626 0%, var(--navy) 65%, #0e2036 100%);
    color: var(--cream);
    overflow: hidden;
    padding: 60px 0 80px;
}
.hero-stars, .final-cta .hero-stars {
    position: absolute; inset: 0; pointer-events: none;
    background-image:
        radial-gradient(1.5px 1.5px at 12% 22%, rgba(246,235,198,.9) 50%, transparent 51%),
        radial-gradient(1px 1px at 28% 60%, rgba(246,235,198,.6) 50%, transparent 51%),
        radial-gradient(2px 2px at 45% 15%, rgba(226,185,113,.8) 50%, transparent 51%),
        radial-gradient(1px 1px at 62% 40%, rgba(246,235,198,.5) 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 78% 70%, rgba(246,235,198,.7) 50%, transparent 51%),
        radial-gradient(1px 1px at 90% 30%, rgba(246,235,198,.6) 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 8% 80%, rgba(226,185,113,.6) 50%, transparent 51%);
}
.hero-moon {
    position: absolute;
    top: -70px; right: 14%;
    width: 240px; height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle at 38% 38%, #fdf6d8 0%, #f0dfa2 45%, #d8bd72 100%);
    box-shadow: 0 0 90px 30px rgba(240, 223, 162, .35);
    opacity: .95;
}
.hero-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 48px;
    align-items: start;
}
.hero-frame {
    border: 1.5px solid var(--gold);
    border-radius: 18px;
    padding: 28px 34px;
    display: inline-block;
    background: rgba(12, 27, 45, .55);
    backdrop-filter: blur(2px);
}
.hero-kicker {
    letter-spacing: 5px;
    font-size: 13px;
    color: var(--gold-light);
    text-transform: uppercase;
    margin-bottom: 8px;
}
.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(30px, 3.6vw, 44px);
    font-weight: 700;
    color: var(--cream);
    line-height: 1.25;
}
.hero-sub { margin-top: 10px; font-size: 15px; color: var(--gold-light); }

.hero-products {
    position: relative;
    display: flex;
    gap: 24px;
    margin-top: 36px;
    align-items: flex-end;
}
.hero-box { border-radius: 14px; box-shadow: 0 24px 50px rgba(0,0,0,.45); }
.hero-box-1 { width: 46%; }
.hero-box-2 { width: 40%; transform: translateY(-14px) rotate(1.5deg); }

.hero-stats {
    display: flex;
    align-items: center;
    gap: 28px;
    margin-top: 40px;
}
.stat { display: flex; align-items: center; gap: 14px; }
.stat-num {
    font-family: var(--font-serif);
    font-size: 46px;
    color: var(--gold);
    font-weight: 700;
    line-height: 1;
}
.stat-num sup { font-size: 22px; }
.stat-label { font-size: 13px; letter-spacing: 1px; text-transform: uppercase; color: var(--cream); }
.stat-divider { width: 1px; height: 46px; background: rgba(204,142,8,.5); }

/* ---------- Form card ---------- */
.hero-form-card {
    background: linear-gradient(170deg, rgba(18,37,60,.95), rgba(12,27,45,.98));
    border: 1.5px solid var(--gold);
    border-radius: 20px;
    padding: 30px 28px;
    box-shadow: 0 24px 60px rgba(0,0,0,.5);
}
.form-title {
    font-family: var(--font-serif);
    font-size: 24px;
    color: var(--gold);
    text-align: center;
    line-height: 1.35;
    margin-bottom: 8px;
}
.form-discount {
    text-align: center;
    color: var(--cream);
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 18px;
}
.form-discount strong { color: var(--gold); font-size: 30px; font-family: var(--font-serif); }
.lead-form { display: flex; flex-direction: column; gap: 12px; }
.lead-form input,
.lead-form select,
.lead-form textarea {
    width: 100%;
    padding: 12px 18px;
    background: transparent;
    border: 1px solid rgba(204, 142, 8, .75);
    border-radius: 999px;
    color: var(--cream);
    font-family: var(--font-sans);
    font-size: 14px;
    outline: none;
    transition: border-color .2s, box-shadow .2s;
}
.lead-form textarea { border-radius: 18px; resize: vertical; min-height: 58px; }
.lead-form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--gold) 50%), linear-gradient(135deg, var(--gold) 50%, transparent 50%); background-position: calc(100% - 22px) 55%, calc(100% - 16px) 55%; background-size: 6px 6px; background-repeat: no-repeat; }
.lead-form select option { background: var(--navy); color: var(--cream); }
.lead-form input::placeholder, .lead-form textarea::placeholder { color: rgba(246,235,198,.65); }
.lead-form input:focus, .lead-form select:focus, .lead-form textarea:focus {
    border-color: var(--gold-light);
    box-shadow: 0 0 0 3px rgba(204,142,8,.18);
}
.lead-form .btn { margin-top: 4px; }
.hp-field { position: absolute !important; left: -9999px !important; opacity: 0; height: 0; padding: 0 !important; border: 0 !important; }
.form-msg { font-size: 14px; text-align: center; min-height: 20px; }
.form-msg.ok  { color: #7ee2a0; }
.form-msg.err { color: #ff9d9d; }

/* =====================================================
   INTRO
   ===================================================== */
.intro { padding: 90px 0; }
.intro-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}
.intro-pillars {
    display: flex;
    gap: 40px;
    margin-top: 40px;
}
.pillar h3 {
    font-family: var(--font-serif);
    font-size: 19px;
    font-weight: 600;
    color: var(--gold-light);
    line-height: 1.4;
}
.pillar-line { display: block; width: 42px; height: 2px; background: var(--gold); margin-bottom: 12px; }
.arch-frame {
    border: 1.5px solid var(--gold);
    border-radius: 200px 200px 18px 18px;
    padding: 14px;
    background: rgba(246,235,198,.04);
}
.arch-frame img { border-radius: 190px 190px 12px 12px; }

/* =====================================================
   WHY
   ===================================================== */
.why { padding: 90px 0; }
.why-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    margin-top: 46px;
}
.why-card {
    background: linear-gradient(180deg, var(--navy-2), var(--navy));
    border: 1px solid rgba(204,142,8,.4);
    border-radius: 130px 130px 16px 16px;
    padding: 48px 22px 34px;
    text-align: center;
    color: var(--cream);
    transition: transform .25s ease, box-shadow .25s ease;
}
.why-card:hover { transform: translateY(-8px); box-shadow: 0 18px 40px rgba(12,27,45,.28); }
.why-icon { font-size: 30px; color: var(--gold); margin-bottom: 14px; }
.why-card h3 {
    font-family: var(--font-serif);
    color: var(--gold);
    font-size: 19px;
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1.4;
    margin-bottom: 12px;
}
.why-card p { font-size: 13.5px; color: rgba(246,235,198,.85); }

/* =====================================================
   COLLECTIONS
   ===================================================== */
.collections { padding: 90px 0; }
.collection {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
    align-items: center;
    margin-top: 70px;
}
.collection.rev .collection-img { order: 2; }
.collection-img img {
    border-radius: 16px;
    box-shadow: 0 22px 48px rgba(12,27,45,.22);
}
.collection-info h3 {
    font-family: var(--font-serif);
    font-size: clamp(28px, 3.4vw, 44px);
    color: var(--gold);
    line-height: 1.2;
    margin-bottom: 18px;
}
.collection-info p { margin-bottom: 26px; font-size: 15.5px; }

/* =====================================================
   CUSTOM DESIGN
   ===================================================== */
.custom { padding: 90px 0; }
.custom-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
    margin-top: 46px;
}
.custom-item {
    text-align: center;
    padding: 30px 16px;
    border: 1px solid rgba(204,142,8,.35);
    border-radius: 14px;
    background: #fff;
    transition: transform .25s ease, box-shadow .25s ease;
}
.custom-item:hover { transform: translateY(-6px); box-shadow: 0 14px 32px rgba(12,27,45,.12); }
.custom-icon { font-size: 34px; margin-bottom: 12px; }
.custom-item h3 {
    font-family: var(--font-serif);
    font-size: 16px;
    color: var(--ink);
    text-transform: uppercase;
    letter-spacing: 1px;
    line-height: 1.5;
}

/* =====================================================
   FLAVORS
   ===================================================== */
.flavors { padding: 90px 0; }
.flavor-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 52px 40px;
    margin: 56px 0;
}
.flavor { text-align: center; }
.flavor-img {
    width: 190px; height: 190px;
    margin: 0 auto 22px;
    border-radius: 50%;
    overflow: hidden;
    border: 1.5px solid rgba(204,142,8,.45);
    padding: 8px;
    transition: transform .25s ease;
}
.flavor:hover .flavor-img { transform: scale(1.05); }
.flavor-img img { border-radius: 50%; width: 100%; height: 100%; object-fit: cover; }
.flavor h3 {
    font-family: var(--font-serif);
    font-size: 22px;
    color: var(--gold);
    line-height: 1.3;
    margin-bottom: 10px;
    text-transform: capitalize;
}
.flavor p { font-size: 14px; max-width: 280px; margin: 0 auto; }

/* =====================================================
   GALLERY
   ===================================================== */
.gallery { padding: 80px 0; }
.gallery-track {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    margin-top: 40px;
}
.gallery-item img {
    border-radius: 12px;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    box-shadow: 0 10px 26px rgba(12,27,45,.14);
    transition: transform .25s ease;
}
.gallery-item:hover img { transform: scale(1.03); }

/* =====================================================
   FINAL CTA
   ===================================================== */
.final-cta { position: relative; padding: 90px 0; overflow: hidden; }
.cta-grid {
    position: relative;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 60px;
    align-items: center;
}
.cta-badge {
    display: inline-flex;
    align-items: center;
    gap: 16px;
    margin-top: 30px;
    border: 1.5px solid var(--gold);
    border-radius: 999px;
    padding: 14px 30px;
}
.cta-badge-num {
    font-family: var(--font-serif);
    font-size: 52px;
    font-weight: 700;
    color: var(--gold);
    line-height: 1;
}
.cta-badge-label { font-size: 13px; letter-spacing: 2px; color: var(--cream); }

/* =====================================================
   FOOTER
   ===================================================== */
.footer {
    background: #081422;
    color: rgba(246,235,198,.85);
    padding: 56px 0 40px;
    font-size: 14px;
    text-align: center;
}
.footer-brand {
    font-family: var(--font-serif);
    color: var(--gold);
    font-size: 24px;
    margin-bottom: 16px;
}
.footer p { margin: 6px 0; }
.footer a { color: var(--gold-light); text-decoration: none; }
.footer a:hover { text-decoration: underline; }
.footer-line { border: 0; border-top: 1px solid rgba(204,142,8,.3); margin: 22px auto; max-width: 640px; }
.footer-small { font-size: 12.5px; opacity: .75; max-width: 760px; margin: 0 auto; }

/* ---------- Floating contact ---------- */
.float-contact {
    position: fixed;
    right: 18px; bottom: 22px;
    display: flex; flex-direction: column; gap: 10px;
    z-index: 50;
}
.float-btn {
    display: flex; align-items: center; justify-content: center;
    width: 54px; height: 54px;
    border-radius: 50%;
    text-decoration: none;
    font-size: 13px; font-weight: 700;
    box-shadow: 0 8px 20px rgba(0,0,0,.3);
    animation: pulse 2s infinite;
}
.float-phone { background: var(--gold); font-size: 22px; }
.float-zalo  { background: #0068ff; color: #fff; }
@keyframes pulse {
    0%   { box-shadow: 0 0 0 0 rgba(204,142,8,.45); }
    70%  { box-shadow: 0 0 0 14px rgba(204,142,8,0); }
    100% { box-shadow: 0 0 0 0 rgba(204,142,8,0); }
}

/* ---------- Reveal animation ---------- */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible { opacity: 1; transform: none; }

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 960px) {
    .hero-grid, .intro-grid, .cta-grid { grid-template-columns: 1fr; }
    .hero-moon { right: -40px; width: 170px; height: 170px; }
    .why-grid { grid-template-columns: repeat(2, 1fr); }
    .custom-grid { grid-template-columns: repeat(2, 1fr); }
    .flavor-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
    .collection { grid-template-columns: 1fr; gap: 26px; margin-top: 54px; }
    .collection.rev .collection-img { order: 0; }
    .gallery-track { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
    .why-grid, .custom-grid, .flavor-grid { grid-template-columns: 1fr; }
    .gallery-track { grid-template-columns: 1fr; }
    .hero { padding: 40px 0 60px; }
    .hero-frame { padding: 20px; }
    .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; }
    .stat-divider { display: none; }
    .flavor-img { width: 160px; height: 160px; }
}