/* =====================================================
   CU ĐƠ NÚI HỒNG — Premium Design System v2.0
   cudonuihong.vn
   ===================================================== */

/* ── 1. Design Tokens ─────────────────────────────── */
:root {
    /* Brand Colors */
    --logo-white:          #FFFFFF;
    --logo-cream:          #FFE6CD;
    --logo-cream-light:    #FFF8F0;
    --logo-gold:           #F4C81A;
    --logo-gold-dark:      #D4A900;
    --logo-gold-deep:      #8B6914;
    --logo-red:            #EC1721;
    --logo-burgundy:       #AA1D27;
    --logo-burgundy-dark:  #7E1119;
    --logo-ink:            #2F1719;
    --logo-ink-soft:       #5C3A3D;
    --logo-green-zalo:     #0068FF;

    /* Semantic */
    --color-primary:       var(--logo-burgundy);
    --color-accent:        var(--logo-gold);
    --color-bg:            var(--logo-cream-light);
    --color-text:          var(--logo-ink);
    --color-muted:         #7a6468;

    /* Shadows */
    --shadow-sm:   0 2px 8px rgba(47,23,25,.08);
    --shadow-md:   0 6px 24px rgba(47,23,25,.12);
    --shadow-lg:   0 16px 48px rgba(47,23,25,.16);
    --shadow-gold: 0 8px 32px rgba(244,200,26,.25);

    /* Radius */
    --radius-sm:  8px;
    --radius-md:  16px;
    --radius-lg:  24px;
    --radius-xl:  36px;

    /* Transitions */
    --transition: all .3s cubic-bezier(.4,0,.2,1);
}

/* ── 2. Base Reset & Body ─────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

body {
    font-family: 'Be Vietnam Pro', sans-serif;
    color: var(--logo-ink);
    background: var(--logo-cream-light);
    overflow-x: hidden;
}

/* CRITICAL BUG FIX: Remove restrictive max-width on form elements */
input,
select,
textarea {
    /* Removed: max-width: 280px — this was breaking all forms on mobile */
    font-family: inherit;
}

.body-content {
    margin-top: 15px;
    padding-left: 15px;
    padding-right: 15px;
}

.dl-horizontal dt { white-space: normal; }

/* ── 3. Typography ────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-weight: 700;
    line-height: 1.25;
}

.section-eyebrow {
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .15em;
    text-transform: uppercase;
    color: var(--logo-gold-deep);
    display: block;
    margin-bottom: .5rem;
}

.section-title {
    font-size: clamp(1.6rem, 4vw, 2.25rem);
    font-weight: 800;
    color: var(--logo-ink);
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1rem;
    color: var(--color-muted);
    max-width: 560px;
    margin: 0 auto 2rem;
}

/* ── 4. Color Utilities ───────────────────────────── */
a { color: var(--logo-burgundy); text-decoration: none; }
a:hover { color: var(--logo-red); }

.text-cudo,
.text-primary    { color: var(--logo-burgundy) !important; }
.text-warning    { color: var(--logo-gold) !important; }
.text-danger     { color: var(--logo-red) !important; }
.text-gold-deep  { color: var(--logo-gold-deep) !important; }
.text-muted-cudo { color: var(--logo-ink-soft) !important; }

.bg-cudo,
.bg-primary  { background-color: var(--logo-burgundy) !important; }
.bg-warning  { background-color: var(--logo-gold) !important; }
.bg-danger   { background-color: var(--logo-red) !important; }
.bg-cream    { background-color: var(--logo-cream-light) !important; }
.bg-light    { background-color: rgba(255,230,205,.35) !important; }

.border-warning { border-color: var(--logo-gold) !important; }
.border-primary { border-color: var(--logo-burgundy) !important; }
.border-danger  { border-color: var(--logo-red) !important; }

/* ── 5. Announcement Bar ──────────────────────────── */
.announcement-bar {
    background: linear-gradient(90deg, var(--logo-burgundy-dark) 0%, var(--logo-burgundy) 50%, var(--logo-burgundy-dark) 100%);
    color: #fff;
    font-size: .8rem;
    font-weight: 600;
    padding: 8px 0;
    text-align: center;
    letter-spacing: .02em;
}
.announcement-bar span {
    padding: 0 1rem;
    opacity: .85;
}
.announcement-bar .sep {
    color: var(--logo-gold);
    opacity: 1;
}

/* ── 6. Navbar ────────────────────────────────────── */
.navbar {
    border-bottom: 3px solid var(--logo-gold);
    background: #fff !important;
    backdrop-filter: blur(8px);
}

.navbar-brand,
.navbar-brand:hover { color: var(--logo-burgundy) !important; }

.navbar-brand-text {
    font-size: 1.05rem;
    font-weight: 800;
    color: var(--logo-burgundy);
    line-height: 1.2;
}
.navbar-brand-text span {
    display: block;
    font-size: .72rem;
    font-weight: 500;
    color: var(--logo-ink-soft);
    padding-top: 3px;
}

.nav-link {
    color: var(--logo-ink);
    font-weight: 600;
    position: relative;
    padding: .5rem .75rem !important;
}
.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0; left: .75rem; right: .75rem;
    height: 2px;
    background: var(--logo-gold);
    border-radius: 2px;
    transform: scaleX(0);
    transition: transform .25s ease;
}
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }
.nav-link:hover,
.nav-link:focus,
.nav-link.active { color: var(--logo-red) !important; }

/* ── 7. Buttons ───────────────────────────────────── */
.btn { font-weight: 600; letter-spacing: .01em; transition: var(--transition); }

.btn-cudo,
.btn-primary {
    --bs-btn-color: #fff;
    --bs-btn-bg: var(--logo-burgundy);
    --bs-btn-border-color: var(--logo-burgundy);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--logo-burgundy-dark);
    --bs-btn-hover-border-color: var(--logo-burgundy-dark);
    background-color: var(--logo-burgundy) !important;
    border-color: var(--logo-burgundy) !important;
}
.btn-cudo:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.btn-warning {
    --bs-btn-color: var(--logo-ink);
    --bs-btn-bg: var(--logo-gold);
    --bs-btn-border-color: var(--logo-gold);
    --bs-btn-hover-color: var(--logo-white);
    --bs-btn-hover-bg: var(--logo-red);
    --bs-btn-hover-border-color: var(--logo-red);
}
.btn-warning:hover { transform: translateY(-2px); box-shadow: var(--shadow-gold); }

.btn-danger {
    --bs-btn-color: #fff;
    --bs-btn-bg: var(--logo-red);
    --bs-btn-border-color: var(--logo-red);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--logo-burgundy);
    --bs-btn-hover-border-color: var(--logo-burgundy);
}
.btn-danger:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(236,23,33,.35); }

.btn-outline-warning {
    --bs-btn-color: var(--logo-burgundy);
    --bs-btn-border-color: var(--logo-gold);
    --bs-btn-hover-color: var(--logo-ink);
    --bs-btn-hover-bg: var(--logo-gold);
    --bs-btn-hover-border-color: var(--logo-gold);
}
.btn-outline-primary {
    --bs-btn-color: var(--logo-burgundy);
    --bs-btn-border-color: var(--logo-burgundy);
    --bs-btn-hover-color: #fff;
    --bs-btn-hover-bg: var(--logo-burgundy);
    --bs-btn-hover-border-color: var(--logo-burgundy);
}

/* Pulse animation for primary CTA */
@keyframes pulse-cta {
    0%   { box-shadow: 0 0 0 0 rgba(170,29,39,.4); }
    70%  { box-shadow: 0 0 0 12px rgba(170,29,39,0); }
    100% { box-shadow: 0 0 0 0 rgba(170,29,39,0); }
}
.btn-pulse { animation: pulse-cta 2s infinite; }

@keyframes pulse-zalo {
    0%   { box-shadow: 0 0 0 0 rgba(0,104,255,.45); }
    70%  { box-shadow: 0 0 0 14px rgba(0,104,255,0); }
    100% { box-shadow: 0 0 0 0 rgba(0,104,255,0); }
}
.btn-zalo-pulse { animation: pulse-zalo 2s infinite; }

/* ── 8. Hero Section ──────────────────────────────── */
.hero-banner {
    position: relative;
    min-height: 560px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, var(--logo-burgundy-dark) 0%, var(--logo-burgundy) 60%, #c0392b 100%);
}

.hero-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 70% 50%, rgba(244,200,26,.12) 0%, transparent 70%),
        radial-gradient(ellipse 60% 80% at 30% 80%, rgba(0,0,0,.25) 0%, transparent 60%);
    pointer-events: none;
}

.hero-pattern {
    position: absolute;
    inset: 0;
    background-image:
        repeating-linear-gradient(45deg, rgba(255,255,255,.03) 0px, rgba(255,255,255,.03) 1px, transparent 1px, transparent 50px),
        repeating-linear-gradient(-45deg, rgba(255,255,255,.03) 0px, rgba(255,255,255,.03) 1px, transparent 1px, transparent 50px);
    pointer-events: none;
}

.hero-content { position: relative; z-index: 2; }

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    background: rgba(244,200,26,.15);
    border: 1px solid rgba(244,200,26,.4);
    color: var(--logo-gold);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
    padding: .35rem .9rem;
    border-radius: 100px;
    margin-bottom: 1.25rem;
    backdrop-filter: blur(4px);
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 900;
    color: #fff;
    line-height: 1.12;
    margin-bottom: 1.25rem;
    text-shadow: 0 2px 16px rgba(0,0,0,.3);
}
.hero-title .highlight {
    color: var(--logo-gold);
    position: relative;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: rgba(255,255,255,.85);
    line-height: 1.65;
    margin-bottom: 2rem;
    font-weight: 400;
    max-width: 520px;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    margin-bottom: 2rem;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    background: rgba(255,255,255,.12);
    border: 1px solid rgba(255,255,255,.2);
    color: rgba(255,255,255,.9);
    font-size: .78rem;
    font-weight: 600;
    padding: .3rem .75rem;
    border-radius: 100px;
    backdrop-filter: blur(4px);
}
.hero-badge i { color: var(--logo-gold); font-size: .85rem; }

.hero-cta-group {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: center;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,.15);
    flex-wrap: wrap;
}
.hero-stat-num {
    font-size: 1.75rem;
    font-weight: 900;
    color: var(--logo-gold);
    line-height: 1;
}
.hero-stat-label {
    font-size: .78rem;
    color: rgba(255,255,255,.7);
    margin-top: .25rem;
}

/* Hero image mockup */
.hero-product-img {
    position: relative;
    z-index: 2;
    animation: float 4s ease-in-out infinite;
    filter: drop-shadow(0 24px 48px rgba(0,0,0,.4));
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-14px); }
}

.hero-glow {
    position: absolute;
    width: 400px; height: 400px;
    background: radial-gradient(ellipse, rgba(244,200,26,.25) 0%, transparent 70%);
    border-radius: 50%;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

/* ── 9. Social Proof Bar ──────────────────────────── */
.social-proof-bar {
    background: #fff;
    border-top: 3px solid var(--logo-gold);
    border-bottom: 1px solid rgba(170,29,39,.08);
    padding: 14px 0;
    box-shadow: var(--shadow-sm);
}
.social-proof-item {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .88rem;
    font-weight: 600;
    color: var(--logo-ink);
    padding: 4px 0;
}
.social-proof-item i { color: var(--logo-burgundy); font-size: 1.1rem; }
.social-proof-item strong { color: var(--logo-burgundy); }
.social-proof-divider {
    width: 1px; height: 32px;
    background: rgba(170,29,39,.15);
}

/* ── 10. Section Styles ────────────────────────────── */
.section { padding: 72px 0; }
.section-sm { padding: 48px 0; }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header.left { text-align: left; }

.divider-gold {
    width: 60px; height: 4px;
    background: linear-gradient(90deg, var(--logo-gold), var(--logo-red));
    border-radius: 2px;
    margin: 1rem auto 1.5rem;
}
.divider-gold.left { margin-left: 0; }

/* ── 11. Product Cards ─────────────────────────────── */
.product-card {
    border: 1px solid rgba(170,29,39,.08) !important;
    transition: var(--transition);
    border-radius: var(--radius-md) !important;
    overflow: hidden;
    background: #fff;
}
.product-card:hover {
    box-shadow: 0 20px 48px rgba(170,29,39,.16) !important;
    transform: translateY(-8px);
    border-color: rgba(170,29,39,.2) !important;
}

.product-card .card-img-top {
    transition: transform .5s cubic-bezier(.4,0,.2,1);
}
.product-card:hover .card-img-top {
    transform: scale(1.06);
}

.badge-bestseller {
    background: linear-gradient(135deg, var(--logo-gold), var(--logo-gold-dark));
    color: var(--logo-ink);
    font-size: .7rem;
    font-weight: 800;
    letter-spacing: .05em;
    padding: .3rem .65rem;
    border-radius: 100px;
}

/* ── 12. Combo/Bundle Cards ────────────────────────── */
.combo-card {
    background: #fff;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
}
.combo-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-6px);
}
.combo-card.featured::before {
    content: '🏆 PHỔ BIẾN NHẤT';
    position: absolute;
    top: 0; left: 0; right: 0;
    background: linear-gradient(90deg, var(--logo-burgundy), var(--logo-red));
    color: #fff;
    font-size: .72rem;
    font-weight: 800;
    letter-spacing: .1em;
    text-align: center;
    padding: 6px;
    z-index: 1;
}
.combo-card.featured { border: 2px solid var(--logo-burgundy); }

.combo-header {
    padding: 2rem 1.75rem 1.25rem;
    background: linear-gradient(135deg, var(--logo-cream-light), #fff);
    border-bottom: 1px solid rgba(170,29,39,.08);
    text-align: center;
}
.combo-icon {
    width: 72px; height: 72px;
    background: linear-gradient(135deg, var(--logo-gold), var(--logo-gold-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.75rem;
    box-shadow: var(--shadow-gold);
}
.combo-name {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--logo-burgundy);
    margin-bottom: .25rem;
}
.combo-tagline {
    font-size: .82rem;
    color: var(--color-muted);
    font-weight: 500;
}
.combo-body { padding: 1.5rem 1.75rem; }
.combo-items {
    list-style: none;
    padding: 0; margin: 0 0 1.25rem;
}
.combo-items li {
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .88rem;
    color: var(--logo-ink);
    padding: .35rem 0;
    border-bottom: 1px dashed rgba(170,29,39,.08);
}
.combo-items li:last-child { border-bottom: 0; }
.combo-items li i { color: var(--logo-burgundy); font-size: .95rem; flex-shrink: 0; }
.combo-price-row {
    display: flex;
    align-items: baseline;
    gap: .75rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}
.combo-price {
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--logo-red);
    line-height: 1;
}
.combo-price-old {
    font-size: .95rem;
    color: var(--color-muted);
    text-decoration: line-through;
}
.combo-save {
    font-size: .72rem;
    font-weight: 800;
    background: var(--logo-gold);
    color: var(--logo-ink);
    padding: .2rem .5rem;
    border-radius: 100px;
}
.combo-footer { padding: 0 1.75rem 1.75rem; }

/* ── 13. Brand Story Section ───────────────────────── */
.story-section {
    background: linear-gradient(135deg, var(--logo-ink) 0%, var(--logo-burgundy-dark) 100%);
    position: relative;
    overflow: hidden;
}
.story-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}
.story-content { position: relative; z-index: 1; }

.story-quote {
    font-size: clamp(1.25rem, 3vw, 1.85rem);
    font-style: italic;
    color: rgba(255,255,255,.9);
    line-height: 1.55;
    border-left: 4px solid var(--logo-gold);
    padding-left: 1.5rem;
    margin: 2rem 0;
}

.story-highlight {
    display: inline-block;
    background: rgba(244,200,26,.15);
    border: 1px solid rgba(244,200,26,.3);
    color: var(--logo-gold);
    font-size: .8rem;
    font-weight: 700;
    letter-spacing: .08em;
    padding: .3rem .8rem;
    border-radius: 100px;
    margin-bottom: 1rem;
}

/* ── 14. Process Steps ─────────────────────────────── */
.process-step {
    position: relative;
    text-align: center;
    padding: 2rem 1.5rem;
}
.process-step::after {
    content: '';
    position: absolute;
    top: 36px; right: -50%;
    width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--logo-gold), rgba(244,200,26,.1));
    z-index: 0;
}
.process-step:last-child::after { display: none; }

.process-number {
    width: 72px; height: 72px;
    background: linear-gradient(135deg, var(--logo-burgundy), var(--logo-red));
    color: #fff;
    border-radius: 50%;
    font-size: 1.5rem;
    font-weight: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.25rem;
    position: relative;
    z-index: 1;
    box-shadow: 0 8px 24px rgba(170,29,39,.3);
}
.process-icon {
    font-size: 1.6rem;
}
.process-title {
    font-weight: 800;
    color: var(--logo-burgundy);
    margin-bottom: .5rem;
    font-size: 1rem;
}
.process-desc {
    font-size: .85rem;
    color: var(--color-muted);
    line-height: 1.55;
}

/* ── 15. Testimonials ──────────────────────────────── */
.testimonial-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(170,29,39,.06);
    transition: var(--transition);
    position: relative;
}
.testimonial-card::before {
    content: '"';
    position: absolute;
    top: 1rem; right: 1.5rem;
    font-size: 5rem;
    color: rgba(244,200,26,.25);
    font-family: Georgia, serif;
    line-height: 1;
}
.testimonial-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}
.testimonial-avatar {
    width: 52px; height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--logo-burgundy), var(--logo-red));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: #fff;
    font-weight: 800;
    flex-shrink: 0;
    border: 2px solid var(--logo-gold);
}
.testimonial-name {
    font-weight: 800;
    font-size: .95rem;
    color: var(--logo-ink);
    margin-bottom: .1rem;
}
.testimonial-location {
    font-size: .78rem;
    color: var(--color-muted);
}
.testimonial-stars { color: var(--logo-gold); font-size: .85rem; margin-bottom: .75rem; }
.testimonial-text {
    font-size: .9rem;
    color: var(--logo-ink-soft);
    line-height: 1.65;
    font-style: italic;
}
.testimonial-tag {
    display: inline-block;
    background: rgba(244,200,26,.15);
    color: var(--logo-gold-deep);
    font-size: .72rem;
    font-weight: 700;
    padding: .2rem .6rem;
    border-radius: 100px;
    margin-top: .75rem;
}

/* ── 16. Trust Badges ──────────────────────────────── */
.trust-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 1.75rem 1.25rem;
    background: #fff;
    border-radius: var(--radius-md);
    border: 1px solid rgba(170,29,39,.07);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    height: 100%;
}
.trust-badge:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--logo-gold);
}
.trust-badge-icon {
    width: 68px; height: 68px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--logo-cream-light), #fff);
    border: 2px solid rgba(244,200,26,.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-gold);
}
.trust-badge h6 {
    font-weight: 800;
    color: var(--logo-burgundy);
    margin-bottom: .4rem;
    font-size: .92rem;
}
.trust-badge p {
    font-size: .8rem;
    color: var(--color-muted);
    margin: 0;
    line-height: 1.5;
}

/* ── 17. Feature Icons (Homepage) ──────────────────── */
.feature-icon-wrap {
    width: 80px; height: 80px;
    background: linear-gradient(135deg, rgba(244,200,26,.2), rgba(244,200,26,.05));
    border: 2px solid rgba(244,200,26,.25);
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1rem;
    transition: var(--transition);
}
.feature-icon-wrap:hover {
    background: linear-gradient(135deg, var(--logo-gold), var(--logo-gold-dark));
    border-color: var(--logo-gold);
    transform: scale(1.08) rotate(-3deg);
}

/* ── 18. Zalo CTA Section ──────────────────────────── */
.zalo-cta-section {
    background: linear-gradient(135deg, #0068FF 0%, #0050CC 100%);
    border-radius: var(--radius-xl);
    padding: 3rem 2.5rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}
.zalo-cta-section::before {
    content: '';
    position: absolute;
    width: 300px; height: 300px;
    background: rgba(255,255,255,.07);
    border-radius: 50%;
    top: -100px; right: -80px;
}
.zalo-cta-section::after {
    content: '';
    position: absolute;
    width: 200px; height: 200px;
    background: rgba(255,255,255,.05);
    border-radius: 50%;
    bottom: -60px; left: -60px;
}
.zalo-cta-content { position: relative; z-index: 1; }

/* ── 19. Product Detail – Urgency ─────────────────── */
.urgency-bar {
    background: linear-gradient(90deg, rgba(236,23,33,.08), rgba(170,29,39,.06));
    border: 1px solid rgba(170,29,39,.15);
    border-radius: var(--radius-sm);
    padding: .75rem 1rem;
    display: flex;
    align-items: center;
    gap: .6rem;
    font-size: .88rem;
    color: var(--logo-burgundy);
    font-weight: 600;
    margin-bottom: 1rem;
}
.urgency-bar i { color: var(--logo-red); }

.sold-count {
    background: rgba(244,200,26,.12);
    border: 1px solid rgba(244,200,26,.25);
    border-radius: var(--radius-sm);
    padding: .5rem 1rem;
    font-size: .84rem;
    color: var(--logo-gold-deep);
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}

/* ── 20. Quick Buy Actions ─────────────────────────── */
.quick-buy-actions {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: .5rem;
}
.quick-buy-actions .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: .5rem .625rem;
    line-height: 1.15;
    white-space: normal;
}
@media (max-width: 360px) {
    .quick-buy-actions { grid-template-columns: 1fr; }
}

.quick-buy-modal .form-control,
.quick-buy-modal .form-select,
.quick-buy-modal textarea { max-width: none; }
.quick-buy-modal .modal-header { border-bottom-color: rgba(170,29,39,.12); }

/* ── 21. Product Tabs ──────────────────────────────── */
.product-tabs .nav-tabs {
    border-bottom: 2px solid rgba(170,29,39,.1);
    gap: .25rem;
}
.product-tabs .nav-link {
    color: var(--color-muted);
    font-weight: 700;
    font-size: .88rem;
    border: none;
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    padding: .65rem 1.25rem;
}
.product-tabs .nav-link:hover { color: var(--logo-burgundy); background: rgba(170,29,39,.04); }
.product-tabs .nav-link.active {
    color: var(--logo-burgundy) !important;
    background: #fff;
    border-bottom: 3px solid var(--logo-burgundy);
}
.product-tabs .tab-content { padding: 1.5rem 0; }

/* ── 22. Upsell Section ────────────────────────────── */
.upsell-card {
    background: linear-gradient(135deg, var(--logo-cream-light), #fff);
    border: 2px solid rgba(244,200,26,.3);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    transition: var(--transition);
}
.upsell-card:hover {
    border-color: var(--logo-gold);
    box-shadow: var(--shadow-gold);
}

/* ── 23. Floating Zalo Button ──────────────────────── */
.float-zalo {
    position: fixed;
    bottom: 90px;
    right: 20px;
    z-index: 9990;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .4rem;
}
.float-zalo-btn {
    width: 58px; height: 58px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0093FF, #0068FF);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.65rem;
    box-shadow: 0 6px 24px rgba(0,104,255,.45);
    text-decoration: none;
    transition: var(--transition);
    animation: pulse-zalo 2.5s infinite;
    border: 3px solid #fff;
}
.float-zalo-btn:hover {
    transform: scale(1.12);
    color: #fff;
    box-shadow: 0 10px 32px rgba(0,104,255,.55);
    animation: none;
}
.float-zalo-label {
    background: rgba(0,0,0,.75);
    color: #fff;
    font-size: .68rem;
    font-weight: 700;
    padding: .2rem .55rem;
    border-radius: 100px;
    white-space: nowrap;
    letter-spacing: .04em;
}

/* Floating phone button */
.float-phone {
    position: fixed;
    bottom: 160px;
    right: 20px;
    z-index: 9990;
}
.float-phone-btn {
    width: 50px; height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--logo-burgundy), var(--logo-red));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    box-shadow: 0 6px 20px rgba(170,29,39,.4);
    text-decoration: none;
    transition: var(--transition);
    border: 3px solid #fff;
    animation: pulse-cta 2.5s infinite;
}
.float-phone-btn:hover {
    transform: scale(1.1);
    color: #fff;
    animation: none;
}

/* Scroll to top */
.scroll-top {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9990;
    width: 42px; height: 42px;
    border-radius: 50%;
    background: rgba(47,23,25,.8);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}
.scroll-top.visible { opacity: 1; transform: translateY(0); }
.scroll-top:hover { background: var(--logo-burgundy); }

/* ── 24. Mobile Sticky Bottom Bar ──────────────────── */
.mobile-sticky-bar {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 9980;
    display: none;
    background: #fff;
    border-top: 2px solid var(--logo-gold);
    box-shadow: 0 -4px 20px rgba(0,0,0,.12);
    padding: 8px 12px;
    gap: 8px;
    align-items: stretch;
}
.mobile-sticky-bar .msb-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    padding: 8px 6px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    font-size: .7rem;
    font-weight: 700;
    line-height: 1.2;
    border: none;
    cursor: pointer;
    min-height: 52px;
    transition: var(--transition);
}
.mobile-sticky-bar .msb-btn i { font-size: 1.15rem; }
.msb-call { background: linear-gradient(135deg, var(--logo-burgundy), var(--logo-red)); color: #fff !important; }
.msb-zalo { background: linear-gradient(135deg, #0093FF, #0068FF); color: #fff !important; }
.msb-order { background: linear-gradient(135deg, var(--logo-gold), var(--logo-gold-dark)); color: var(--logo-ink) !important; }

@media (max-width: 768px) {
    .mobile-sticky-bar { display: flex; }
    body { padding-bottom: 76px; }
    .float-zalo { bottom: 100px; right: 14px; }
    .float-phone { bottom: 170px; right: 14px; }
    .scroll-top { bottom: 82px; right: 14px; }
}
@media (max-width: 576px) {
    .hero-banner { min-height: 460px; }
    .hero-title { font-size: 1.85rem; }
    .combo-card { margin-bottom: 1rem; }
}

/* ── 25. Forms ─────────────────────────────────────── */
.form-control:focus,
.form-select:focus {
    border-color: var(--logo-gold);
    box-shadow: 0 0 0 .25rem rgba(244,200,26,.25);
}

/* ── 26. Cards ─────────────────────────────────────── */
.card { border-color: rgba(170,29,39,.08); border-radius: var(--radius-md); }
.card-header.bg-warning,
.card-header.bg-primary { border-bottom: 3px solid rgba(170,29,39,.2) !important; }

/* ── 27. Navbar Utilities ──────────────────────────── */
.dropdown-menu {
    border-top: 3px solid var(--logo-gold) !important;
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    box-shadow: var(--shadow-md);
}
.badge.bg-danger { color: #fff; }
.hover-white:hover { color: white !important; padding-left: 5px; transition: .2s; }

/* ── 28. Footer ────────────────────────────────────── */
footer.bg-dark {
    background: linear-gradient(135deg, var(--logo-burgundy-dark), var(--logo-burgundy)) !important;
}
footer .text-muted { color: rgba(255,255,255,.72) !important; }
footer .footer-link {
    color: rgba(255,255,255,.75);
    text-decoration: none;
    font-size: .88rem;
    transition: var(--transition);
    display: block;
    padding: .2rem 0;
}
footer .footer-link:hover { color: var(--logo-gold) !important; padding-left: 6px; }
footer .footer-title {
    font-weight: 800;
    font-size: .95rem;
    color: var(--logo-gold);
    margin-bottom: 1rem;
    letter-spacing: .02em;
}
footer .contact-item {
    display: flex;
    align-items: flex-start;
    gap: .6rem;
    color: rgba(255,255,255,.82);
    font-size: .88rem;
    margin-bottom: .6rem;
}
footer .contact-item i { color: var(--logo-gold); margin-top: .15rem; flex-shrink: 0; }
footer .social-btn {
    width: 38px; height: 38px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .95rem;
    color: #fff;
    text-decoration: none;
    transition: var(--transition);
}
footer .social-btn:hover { transform: translateY(-3px); color: var(--logo-gold); }

/* ── 29. Sidebar (Admin) ───────────────────────────── */
.sidebar .nav-link:hover {
    color: var(--logo-red) !important;
    background-color: rgba(255,230,205,.55) !important;
}
.sidebar .nav-link.active {
    color: #fff !important;
    background-color: var(--logo-burgundy) !important;
}
.admin-navbar,
header.navbar {
    background: linear-gradient(90deg, var(--logo-burgundy-dark), var(--logo-burgundy)) !important;
}
header.navbar .navbar-brand,
header.navbar .navbar-brand:hover { color: #fff !important; }

/* ── 30. Scroll Reveal Animations ─────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .65s cubic-bezier(.4,0,.2,1), transform .65s cubic-bezier(.4,0,.2,1);
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}
.reveal-delay-1 { transition-delay: .1s; }
.reveal-delay-2 { transition-delay: .2s; }
.reveal-delay-3 { transition-delay: .3s; }
.reveal-delay-4 { transition-delay: .4s; }

/* ── 31. Misc Utilities ────────────────────────────── */
.text-shadow { text-shadow: 0 2px 8px rgba(0,0,0,.25); }
.rounded-xl { border-radius: var(--radius-xl) !important; }
.rounded-lg-cudo { border-radius: var(--radius-lg) !important; }
.img-cover { object-fit: cover; }
.overflow-hidden { overflow: hidden; }
.gap-cudo { gap: 1rem; }
.bg-gradient-warm {
    background: linear-gradient(135deg, var(--logo-cream-light) 0%, #fff3e8 50%, #fff 100%);
}

/* Stats counter */
.stat-counter {
    font-size: 2rem;
    font-weight: 900;
    color: var(--logo-burgundy);
    line-height: 1;
}

/* Ribbon for featured products */
.ribbon {
    position: absolute;
    top: 12px; left: -6px;
    background: linear-gradient(90deg, var(--logo-red), var(--logo-burgundy));
    color: #fff;
    font-size: .68rem;
    font-weight: 800;
    padding: .25rem .75rem .25rem .6rem;
    border-radius: 0 4px 4px 0;
    letter-spacing: .05em;
    box-shadow: 0 2px 8px rgba(0,0,0,.2);
}
.ribbon::before {
    content: '';
    position: absolute;
    left: 0; bottom: -6px;
    border: 3px solid var(--logo-burgundy-dark);
    border-left-color: transparent;
    border-bottom-color: transparent;
}

/* Separator with text */
.text-separator {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--color-muted);
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .06em;
}
.text-separator::before,
.text-separator::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(170,29,39,.1);
}

/* Progress bar shipping */
.shipping-progress {
    height: 6px;
    border-radius: 3px;
    background: rgba(244,200,26,.2);
    overflow: hidden;
    margin: .35rem 0;
}
.shipping-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--logo-gold), var(--logo-red));
    border-radius: 3px;
    transition: width 1s ease;
}