/* ============================================================
   PHUONG YEN - Premium Bird's Nest
   Color palette taken from the logo: warm gold on ivory/white.
   ============================================================ */
:root{
    --gold-50:  #fff8e6;
    --gold-100: #faecc4;
    --gold-200: #f1d68a;
    --gold-300: #e8c264;
    --gold-400: #d9a93f;
    --gold-500: #c69225;     /* main */
    --gold-600: #a8761b;
    --gold-700: #875c14;
    --gold-800: #5e3f0b;
    --ivory:    #fffdf7;
    --cream:    #faf6ec;
    --ink:      #2d2418;
    --ink-soft: #5a4f3e;
    --muted:    #8a8170;
    --line:     #ecdfc4;
    --danger:   #c0392b;
    --success:  #27ae60;
    --info:     #2980b9;
    --warning:  #d68910;
    --shadow:   0 6px 20px rgba(122, 92, 20, .08);
    --shadow-lg:0 20px 50px rgba(122, 92, 20, .14);
    --radius:   14px;
    --radius-sm:8px;
    --font-display:'Playfair Display','Times New Roman',serif;
    --font-body:'Inter','Segoe UI','Helvetica Neue',Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    background:var(--ivory);
    color:var(--ink);
    font-family:var(--font-body);
    font-size:16px;
    line-height:1.6;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--gold-600);text-decoration:none;transition:color .2s}
a:hover{color:var(--gold-800)}
h1,h2,h3,h4{font-family:var(--font-display);color:var(--ink);font-weight:700;letter-spacing:.2px;margin:0 0 .6em}
h1{font-size:2.6rem;line-height:1.2}
h2{font-size:2rem;line-height:1.25}
h3{font-size:1.4rem}
.container{max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-tight{padding:48px 0}
.section-title{text-align:center;margin-bottom:42px}
.section-title h2{margin-bottom:8px}
.section-title .accent{display:inline-block;width:56px;height:3px;background:linear-gradient(90deg,var(--gold-300),var(--gold-500));border-radius:3px;margin-top:8px}
.section-title p{color:var(--ink-soft);max-width:680px;margin:6px auto 0}

/* ====== Buttons ====== */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 22px;font-weight:600;font-size:.95rem;border-radius:999px;
    border:1px solid transparent;cursor:pointer;transition:.2s all;
    text-decoration:none;line-height:1;
}
.btn-primary{background:linear-gradient(135deg,var(--gold-500),var(--gold-700));color:#fff;box-shadow:0 6px 18px rgba(168,118,27,.30)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(168,118,27,.36);color:#fff}
.btn-outline{background:transparent;border-color:var(--gold-500);color:var(--gold-700)}
.btn-outline:hover{background:var(--gold-500);color:#fff}
.btn-ghost{background:var(--cream);color:var(--ink)}
.btn-ghost:hover{background:var(--gold-100)}
.btn-sm{padding:7px 14px;font-size:.85rem}
.btn-block{display:flex;width:100%}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}

/* ====== Top bar ====== */
.topbar{background:var(--gold-700);color:#fff8e6;font-size:.85rem;padding:6px 0}
.topbar .row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.topbar a{color:#fff8e6}
.lang-switch{display:flex;gap:6px;align-items:center}
.lang-switch a{
    padding:2px 8px;border-radius:4px;font-size:.78rem;letter-spacing:.5px;
    background:rgba(255,255,255,.08);text-transform:uppercase;
}
.lang-switch a.active{background:var(--gold-500);color:#fff}

/* ====== Header ====== */
.header{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50}
.header .row{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--font-display);color:var(--ink);font-size:1.4rem;font-weight:700}
.brand img{width:54px;height:54px}
.brand small{display:block;font-family:var(--font-body);font-size:.7rem;color:var(--gold-600);letter-spacing:2px;text-transform:uppercase}
.nav{display:flex;gap:6px;align-items:center}
.nav a{padding:8px 14px;color:var(--ink);font-weight:500;border-radius:8px;position:relative}
.nav a:hover{color:var(--gold-700);background:var(--gold-50)}
.nav a.active{color:var(--gold-700)}
.nav a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--gold-500);border-radius:2px}
.header-actions{display:flex;align-items:center;gap:8px}
.icon-btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    width:42px;height:42px;border-radius:50%;background:var(--cream);color:var(--ink);
    border:none;cursor:pointer;position:relative;transition:.2s;
}
.icon-btn:hover{background:var(--gold-100)}
.icon-btn .badge{
    position:absolute;top:-2px;right:-2px;min-width:18px;height:18px;font-size:11px;
    background:var(--gold-500);color:#fff;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 4px
}
.menu-toggle{display:none}

/* ====== Hero ====== */
.hero{
    position:relative;background:
        radial-gradient(1200px 600px at 80% -10%, var(--gold-100), transparent 60%),
        radial-gradient(800px 500px at -10% 110%, var(--gold-50), transparent 60%),
        var(--ivory);
    overflow:hidden;padding:90px 0 100px;
}
.hero::before{content:"";position:absolute;inset:0;background-image:
    radial-gradient(circle at 20% 30%, rgba(198,146,37,.06) 1px, transparent 2px),
    radial-gradient(circle at 80% 70%, rgba(198,146,37,.04) 1px, transparent 2px);
    background-size:40px 40px,60px 60px;pointer-events:none}
.hero .row{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;position:relative}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;background:#fff;border:1px solid var(--gold-200);color:var(--gold-700);border-radius:999px;font-size:.8rem;font-weight:600;letter-spacing:.6px;text-transform:uppercase;margin-bottom:18px}
.hero h1{font-size:3.4rem;line-height:1.1;margin-bottom:18px}
.hero h1 span{
    background:linear-gradient(135deg,var(--gold-500),var(--gold-700));
    -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero p.lead{font-size:1.1rem;color:var(--ink-soft);margin-bottom:28px;max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-stats{display:flex;gap:24px;margin-top:36px;flex-wrap:wrap}
.hero-stat{}
.hero-stat .n{font-family:var(--font-display);font-size:1.8rem;color:var(--gold-700);font-weight:700}
.hero-stat .l{font-size:.82rem;color:var(--muted);text-transform:uppercase;letter-spacing:1.2px}
.hero-visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:420px}
.hero-card{
    position:relative;width:100%;max-width:460px;aspect-ratio:1;border-radius:50%;
    background:radial-gradient(circle at 30% 30%, #fff, var(--cream) 60%, var(--gold-100));
    box-shadow:var(--shadow-lg);display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.hero-card::after{content:"";position:absolute;inset:14px;border-radius:50%;border:2px dashed rgba(198,146,37,.35)}
.hero-card img{width:80%;height:auto;filter:drop-shadow(0 10px 30px rgba(168,118,27,.25))}
.hero-badge{
    position:absolute;background:#fff;border-radius:14px;box-shadow:var(--shadow);padding:14px 18px;
    display:flex;align-items:center;gap:10px;font-size:.85rem;font-weight:600;color:var(--ink);
}
.hero-badge .ico{width:38px;height:38px;border-radius:50%;background:var(--gold-100);color:var(--gold-700);display:grid;place-items:center;font-size:18px}
.hero-badge.tl{top:8%;left:-4%}
.hero-badge.br{bottom:8%;right:-4%}

/* ====== Features / Why us ====== */
.features{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature{padding:28px 22px;border-radius:var(--radius);background:var(--cream);text-align:center;transition:.3s}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.feature .ico{width:60px;height:60px;border-radius:50%;background:#fff;color:var(--gold-600);display:grid;place-items:center;margin:0 auto 14px;font-size:26px;box-shadow:var(--shadow)}
.feature h4{font-family:var(--font-display);margin-bottom:6px}
.feature p{color:var(--ink-soft);font-size:.92rem;margin:0}

/* ====== Product card ====== */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-card{
    background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
    transition:.3s;position:relative;display:flex;flex-direction:column;
}
.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:var(--gold-200)}
.product-card .thumb{aspect-ratio:1;background:var(--cream);overflow:hidden;position:relative}
.product-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.5s}
.product-card:hover .thumb img{transform:scale(1.06)}
.product-card .body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1}
.product-card h3{font-size:1rem;font-family:var(--font-body);font-weight:600;margin:0;line-height:1.4}
.product-card h3 a{color:var(--ink)}
.product-card h3 a:hover{color:var(--gold-700)}
.product-card .cat{color:var(--muted);font-size:.78rem;letter-spacing:.5px;text-transform:uppercase}
.product-card .prices{display:flex;align-items:baseline;gap:8px;margin-top:auto;padding-top:6px}
.product-card .price{font-family:var(--font-display);color:var(--gold-700);font-weight:700;font-size:1.1rem}
.product-card .price-old{font-size:.82rem;color:var(--muted);text-decoration:line-through}
.product-card .btn-row{display:flex;gap:8px;padding:0 18px 18px}
.product-card .btn-row .btn{flex:1}
.badge-sale,.badge-featured{position:absolute;top:12px;left:12px;background:var(--danger);color:#fff;padding:4px 10px;border-radius:999px;font-size:.7rem;font-weight:700;letter-spacing:.6px;text-transform:uppercase}
.badge-featured{background:var(--gold-600);left:auto;right:12px}

/* ====== Banner CTA ====== */
.cta-band{
    background:linear-gradient(135deg,var(--gold-700),var(--gold-500));color:#fff8e6;
    padding:46px 0;border-radius:var(--radius);margin:48px 0;text-align:center;position:relative;overflow:hidden;
}
.cta-band h2{color:#fff;margin-bottom:8px}
.cta-band p{margin:0 0 20px;opacity:.92}
.cta-band .btn-primary{background:#fff;color:var(--gold-700)}
.cta-band .btn-primary:hover{background:var(--gold-50);color:var(--gold-800)}

/* ====== Blog cards ====== */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.blog-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s;display:flex;flex-direction:column}
.blog-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.blog-card .thumb{aspect-ratio:16/9;background:var(--cream);overflow:hidden}
.blog-card .thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
.blog-card:hover .thumb img{transform:scale(1.05)}
.blog-card .body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}
.blog-card .date{color:var(--muted);font-size:.8rem}
.blog-card h3{font-size:1.1rem;margin:0 0 6px}
.blog-card h3 a{color:var(--ink)}
.blog-card h3 a:hover{color:var(--gold-700)}
.blog-card p{color:var(--ink-soft);font-size:.92rem;margin:0;flex:1}
.blog-card .more{margin-top:8px;color:var(--gold-600);font-weight:600;font-size:.9rem}

/* ====== Footer ====== */
.footer{background:#1a140a;color:#d6c79f;padding:60px 0 24px;margin-top:64px}
.footer h4{color:#fff;font-family:var(--font-display);margin-bottom:14px;font-size:1.05rem}
.footer .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer a{color:#d6c79f}
.footer a:hover{color:var(--gold-300)}
.footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.footer .brand{color:#fff}
.footer .brand small{color:var(--gold-300)}
.footer .social{display:flex;gap:10px;margin-top:12px}
.footer .social a{width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center}
.footer .social a:hover{background:var(--gold-600)}
.footer .copy{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.08);text-align:center;font-size:.85rem;color:#8a7c5b}
.newsletter-form{display:flex;gap:8px;margin-top:10px}
.newsletter-form input{flex:1;border:none;border-radius:999px;padding:10px 14px;color:var(--ink)}

/* ====== Form ====== */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-weight:600;font-size:.9rem;color:var(--ink);margin-bottom:6px}
.form-control{
    width:100%;padding:11px 14px;border:1px solid var(--line);border-radius:10px;
    background:#fff;color:var(--ink);font-size:.95rem;font-family:inherit;transition:.2s;
}
.form-control:focus{outline:none;border-color:var(--gold-400);box-shadow:0 0 0 4px var(--gold-50)}
textarea.form-control{min-height:120px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-help{font-size:.82rem;color:var(--muted);margin-top:4px}
.required{color:var(--danger)}

/* ====== Alerts ====== */
.alert{padding:12px 16px;border-radius:10px;margin-bottom:18px;font-size:.92rem}
.alert-success{background:#e8f8ef;color:#1e6b3d;border:1px solid #b8e2c8}
.alert-error,.alert-danger{background:#fdecea;color:#8b1f17;border:1px solid #f1c2bd}
.alert-info{background:#e7f1fa;color:#1a4e75;border:1px solid #bcd8ee}
.alert-warning{background:#fff5e6;color:#7a4900;border:1px solid #f5d49a}

/* ====== Breadcrumb ====== */
.breadcrumb{padding:18px 0;font-size:.88rem;color:var(--muted)}
.breadcrumb a{color:var(--gold-600)}
.breadcrumb .sep{margin:0 8px;color:var(--muted)}

/* ====== Page header (banner with title) ====== */
.page-header{
    background:linear-gradient(180deg,var(--cream),var(--ivory));border-bottom:1px solid var(--line);
    padding:46px 0 36px;text-align:center;
}
.page-header h1{margin:0 0 8px}
.page-header p{color:var(--ink-soft);margin:0}

/* ====== Product detail ====== */
.product-detail{display:grid;grid-template-columns:1fr 1fr;gap:42px}
.product-detail .gallery{background:var(--cream);border-radius:var(--radius);padding:18px;display:flex;align-items:center;justify-content:center}
.product-detail .gallery img{width:100%;border-radius:10px}
.product-detail h1{margin-bottom:12px}
.product-detail .price-block{display:flex;align-items:baseline;gap:14px;margin:12px 0 18px}
.product-detail .price-block .price{font-family:var(--font-display);font-size:2rem;color:var(--gold-700);font-weight:700}
.product-detail .price-block .price-old{font-size:1rem;color:var(--muted);text-decoration:line-through}
.product-meta{display:flex;flex-direction:column;gap:8px;padding:14px;background:var(--cream);border-radius:10px;font-size:.9rem;margin:18px 0}
.product-meta div span:first-child{color:var(--muted);min-width:120px;display:inline-block}
.qty-input{display:inline-flex;align-items:center;border:1px solid var(--line);border-radius:999px;overflow:hidden}
.qty-input button{width:36px;height:36px;background:transparent;border:none;cursor:pointer;font-size:1.1rem;color:var(--ink)}
.qty-input input{width:50px;text-align:center;border:none;font-weight:600;background:transparent}

/* ====== Cart table ====== */
.cart-table{width:100%;border-collapse:collapse}
.cart-table th,.cart-table td{padding:14px;border-bottom:1px solid var(--line);text-align:left}
.cart-table th{font-weight:600;color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.5px}
.cart-row{display:flex;align-items:center;gap:14px}
.cart-row img{width:64px;height:64px;border-radius:10px;object-fit:cover;background:var(--cream)}

/* ====== Cart summary ====== */
.cart-layout{display:grid;grid-template-columns:1.5fr 1fr;gap:28px;align-items:start}
.summary-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);position:sticky;top:90px}
.summary-card .line{display:flex;justify-content:space-between;padding:8px 0;font-size:.95rem}
.summary-card .line.total{font-size:1.15rem;font-weight:700;border-top:1px solid var(--line);padding-top:14px;margin-top:8px;color:var(--gold-700)}

/* ====== Admin ====== */
.admin-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh;background:var(--ivory)}
.admin-side{background:#1a140a;color:#d6c79f;padding:20px 0;position:sticky;top:0;height:100vh;overflow-y:auto}
.admin-side .brand{padding:0 20px 16px;border-bottom:1px solid rgba(255,255,255,.08);color:#fff}
.admin-side .brand img{width:40px;height:40px}
.admin-side nav{padding:14px 0;display:flex;flex-direction:column;gap:2px}
.admin-side nav a{display:flex;align-items:center;gap:10px;padding:11px 22px;color:#cfbf94;font-size:.92rem;border-left:3px solid transparent}
.admin-side nav a:hover{background:rgba(255,255,255,.04);color:#fff}
.admin-side nav a.active{background:linear-gradient(90deg,rgba(198,146,37,.22),transparent);color:#fff;border-left-color:var(--gold-500)}
.admin-side nav .sec{padding:18px 22px 6px;font-size:.72rem;color:#8a7c5b;text-transform:uppercase;letter-spacing:1px}
.admin-main{padding:24px 32px}
.admin-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.admin-bar h1{font-size:1.5rem;margin:0}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);margin-bottom:24px}
.card h2{font-size:1.1rem;margin-bottom:14px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:24px}
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;display:flex;justify-content:space-between;align-items:center;box-shadow:var(--shadow)}
.stat .label{color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.5px}
.stat .value{font-family:var(--font-display);color:var(--gold-700);font-size:1.7rem;font-weight:700;margin-top:4px}
.stat .ico{width:48px;height:48px;border-radius:12px;background:var(--gold-100);color:var(--gold-700);display:grid;place-items:center;font-size:22px}
table.data{width:100%;border-collapse:collapse;background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line)}
table.data th,table.data td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);font-size:.92rem}
table.data thead{background:var(--cream)}
table.data th{font-weight:600;color:var(--ink-soft);text-transform:uppercase;font-size:.78rem;letter-spacing:.5px}
table.data tr:hover{background:var(--gold-50)}
.status-pill{display:inline-block;padding:3px 10px;border-radius:999px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.status-pending{background:#fdf3e1;color:#8a5a00}
.status-confirmed{background:#e1ecfd;color:#1a4e75}
.status-processing{background:#fdf6e1;color:#6c4d00}
.status-shipping{background:#e1f4fd;color:#10547b}
.status-completed{background:#e6f7eb;color:#1e6b3d}
.status-cancelled{background:#fae3e1;color:#8a1f17}
.actions{display:flex;gap:6px}
.actions a,.actions button{padding:6px 10px;font-size:.82rem;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--ink-soft);cursor:pointer}
.actions a:hover{background:var(--gold-50);color:var(--gold-700)}

/* ====== Login & register ====== */
.auth-shell{
    min-height:100vh;display:grid;grid-template-columns:1fr 1fr;
    background:linear-gradient(135deg,var(--cream),var(--ivory));
}
.auth-side{
    background:linear-gradient(135deg,var(--gold-600),var(--gold-800));
    color:#fff8e6;padding:48px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden;
}
.auth-side::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 20% 20%, rgba(255,255,255,.06) 1px, transparent 2px);background-size:30px 30px;pointer-events:none}
.auth-side .brand{color:#fff;font-size:1.6rem}
.auth-side .brand small{color:#fffdf0;letter-spacing:3px}
.auth-side h1{color:#fff;font-size:2.2rem;margin-top:30px}
.auth-side p{opacity:.9}
.auth-form{display:flex;align-items:center;justify-content:center;padding:48px}
.auth-form form{background:#fff;border-radius:var(--radius);padding:36px;width:100%;max-width:420px;box-shadow:var(--shadow-lg)}

/* ====== Responsive ====== */
@media (max-width: 991px){
    .hero h1{font-size:2.4rem}
    .hero .row, .product-detail, .cart-layout, .auth-shell{grid-template-columns:1fr}
    .feature-grid{grid-template-columns:repeat(2,1fr)}
    .product-grid{grid-template-columns:repeat(3,1fr)}
    .blog-grid{grid-template-columns:repeat(2,1fr)}
    .footer .grid{grid-template-columns:repeat(2,1fr)}
    .stat-grid{grid-template-columns:repeat(2,1fr)}
    .admin-shell{grid-template-columns:1fr}
    .admin-side{position:relative;height:auto}
    .auth-side{display:none}
}
@media (max-width: 640px){
    h1{font-size:2rem}
    h2{font-size:1.5rem}
    .product-grid{grid-template-columns:repeat(2,1fr)}
    .blog-grid{grid-template-columns:1fr}
    .form-row{grid-template-columns:1fr}
    .nav{display:none;position:fixed;inset:64px 0 0;background:#fff;flex-direction:column;align-items:stretch;padding:16px;border-top:1px solid var(--line);overflow-y:auto}
    .nav.open{display:flex}
    .menu-toggle{display:inline-flex}
    .feature-grid{grid-template-columns:1fr}
}