/* ===== Pickleball Phase 2 - Shared CSS ===== */
/* Marker: PICKLE_CSS_V1 | DNA: Lora + Source Sans 3, blue gradient, pickleball yellow accent */

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Source Sans 3', 'Segoe UI', sans-serif; background: #f8f9fa; color: #1a1a1a; line-height: 1.6; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* ===== Variables ===== */
:root {
  --c-primary: #2563eb;
  --c-primary-light: #3b82f6;
  --c-primary-bg: #eff6ff;
  --c-yellow: #fbbf24;       /* pickleball ball yellow */
  --c-yellow-bg: #fef3c7;
  --c-green: #059669;        /* court green */
  --c-green-bg: #ecfdf5;
  --c-red: #dc2626;
  --c-red-bg: #fef2f2;
  --c-purple: #7c3aed;
  --c-text: #1a2b49;
  --c-text-2: #4a5568;
  --c-text-3: #6b7c93;
  --c-text-4: #999;
  --c-border: #e8eaed;
  --c-border-2: #d0d5dd;
  --c-bg: #f8f9fa;
  --c-card: #fff;
  --gradient-primary: linear-gradient(135deg, #3b82f6, #2563eb);
  --gradient-pickle: linear-gradient(135deg, #fbbf24, #f59e0b);
  --gradient-hero: linear-gradient(135deg, #1e3a8a 0%, #2563eb 50%, #3b82f6 100%);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
}

/* ===== Layout ===== */
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* ===== Top bar ===== */
.topbar { background: #fff; border-bottom: 1px solid var(--c-border); position: sticky; top: 0; z-index: 100; box-shadow: var(--shadow-sm); }
.topbar-inner { display: flex; align-items: center; gap: 16px; padding: 14px 24px; max-width: 1280px; margin: 0 auto; }
.topbar-logo { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.topbar-logo img { width: 36px; height: 36px; object-fit: contain; border-radius: 6px; }
.topbar-title { font-family: 'Lora', Georgia, serif; font-size: 1.05rem; font-weight: 700; color: var(--c-text); }
.topbar-sub { font-size: 0.72rem; color: var(--c-text-3); }
.topbar-nav { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.topbar-nav a { padding: 8px 14px; color: var(--c-text-2); font-size: 0.9rem; font-weight: 500; border-radius: 7px; transition: all 0.15s; }
.topbar-nav a:hover { background: var(--c-primary-bg); color: var(--c-primary); }
.topbar-nav a.active { background: var(--c-primary-bg); color: var(--c-primary); font-weight: 600; }
.topbar-cta { padding: 8px 16px !important; background: var(--gradient-primary); color: #fff !important; box-shadow: 0 2px 8px rgba(59,130,246,0.25); }
.topbar-cta:hover { background: var(--gradient-primary) !important; color: #fff !important; transform: translateY(-1px); }

/* ===== Hero ===== */
.hero { background: var(--gradient-hero); color: #fff; padding: 64px 0 80px; position: relative; overflow: hidden; }
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(251,191,36,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(59,130,246,0.3) 0%, transparent 50%);
  pointer-events: none;
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px; pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; }
.hero-eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; background: rgba(251,191,36,0.15); border: 1px solid rgba(251,191,36,0.4); border-radius: 100px; font-size: 0.78rem; font-weight: 600; color: #fde68a; margin-bottom: 20px; letter-spacing: 0.5px; text-transform: uppercase; }
.hero h1 { font-family: 'Lora', Georgia, serif; font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 700; line-height: 1.15; margin-bottom: 16px; max-width: 800px; }
.hero h1 .accent { background: var(--gradient-pickle); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero p.lead { font-size: 1.1rem; color: rgba(255,255,255,0.85); max-width: 640px; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ===== Buttons ===== */
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 22px; border-radius: 8px; font-size: 0.92rem; font-weight: 600; border: none; cursor: pointer; transition: all 0.18s; font-family: inherit; line-height: 1; white-space: nowrap; }
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--gradient-primary); color: #fff; box-shadow: 0 4px 14px rgba(59,130,246,0.3); }
.btn-primary:hover { box-shadow: 0 6px 20px rgba(59,130,246,0.4); }
.btn-secondary { background: #fff; color: var(--c-text); border: 1px solid var(--c-border); }
.btn-secondary:hover { background: var(--c-bg); border-color: var(--c-border-2); }
.btn-yellow { background: var(--gradient-pickle); color: #78350f; box-shadow: 0 4px 14px rgba(251,191,36,0.4); }
.btn-yellow:hover { box-shadow: 0 6px 20px rgba(251,191,36,0.5); }
.btn-ghost { background: rgba(255,255,255,0.1); color: #fff; border: 1px solid rgba(255,255,255,0.25); }
.btn-ghost:hover { background: rgba(255,255,255,0.15); }
.btn-sm { padding: 7px 14px; font-size: 0.84rem; }
.btn-lg { padding: 14px 28px; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }
.btn-danger { background: var(--c-red); color: #fff; }

/* ===== Stats grid ===== */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-top: -40px; position: relative; z-index: 2; }
.stat-card { background: #fff; padding: 24px 20px; border-radius: 12px; box-shadow: var(--shadow-md); border: 1px solid var(--c-border); }
.stat-num { font-family: 'Lora', Georgia, serif; font-size: 2.4rem; font-weight: 700; color: var(--c-primary); line-height: 1; }
.stat-num.yellow { color: var(--c-yellow); }
.stat-num.green { color: var(--c-green); }
.stat-label { font-size: 0.84rem; color: var(--c-text-3); margin-top: 6px; font-weight: 500; }

/* ===== Section ===== */
section { padding: 56px 0; }
.section-head { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 28px; flex-wrap: wrap; }
.section-title { font-family: 'Lora', Georgia, serif; font-size: 1.7rem; font-weight: 700; color: var(--c-text); }
.section-sub { color: var(--c-text-3); font-size: 0.92rem; margin-top: 4px; }
.section-link { color: var(--c-primary); font-weight: 600; font-size: 0.9rem; }
.section-link:hover { text-decoration: underline; }

/* ===== Cards ===== */
.card { background: #fff; border: 1px solid var(--c-border); border-radius: 12px; padding: 20px; transition: all 0.2s; }
.card:hover { border-color: var(--c-border-2); box-shadow: var(--shadow-md); transform: translateY(-2px); }

/* ===== VĐV grid card ===== */
.vdv-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.vdv-card { background: #fff; border: 1px solid var(--c-border); border-radius: 12px; overflow: hidden; transition: all 0.22s; cursor: pointer; }
.vdv-card:hover { border-color: var(--c-primary-light); box-shadow: var(--shadow-md); transform: translateY(-2px); }
.vdv-photo { aspect-ratio: 1; background: var(--c-bg); position: relative; display: flex; align-items: center; justify-content: center; overflow: hidden; }
.vdv-photo img { width: 100%; height: 100%; object-fit: cover; }
.vdv-photo-placeholder { font-family: 'Lora', Georgia, serif; font-size: 2.5rem; font-weight: 700; color: var(--c-primary); background: linear-gradient(135deg, #dbeafe, #bfdbfe); width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.vdv-trinh-pill { position: absolute; top: 10px; right: 10px; background: rgba(255,255,255,0.95); backdrop-filter: blur(6px); padding: 4px 10px; border-radius: 100px; font-weight: 700; font-size: 0.85rem; color: var(--c-primary); box-shadow: var(--shadow-sm); }
.vdv-trinh-pill.high { background: var(--gradient-pickle); color: #78350f; }
.vdv-info { padding: 14px 16px; }
.vdv-name { font-family: 'Lora', Georgia, serif; font-size: 1rem; font-weight: 600; color: var(--c-text); line-height: 1.3; margin-bottom: 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.vdv-meta { display: flex; align-items: center; gap: 8px; font-size: 0.78rem; color: var(--c-text-3); flex-wrap: wrap; }
.vdv-meta .gt { padding: 2px 8px; border-radius: 4px; font-weight: 600; }
.vdv-meta .gt-Nam { background: #dbeafe; color: #1e40af; }
.vdv-meta .gt-Nu { background: #fce7f3; color: #be185d; }

/* ===== Giải đấu card ===== */
.giai-card { background: #fff; border: 1px solid var(--c-border); border-radius: 12px; overflow: hidden; transition: all 0.2s; }
.giai-card:hover { border-color: var(--c-border-2); box-shadow: var(--shadow-md); }
.giai-banner { aspect-ratio: 16/6; background: var(--gradient-hero); position: relative; }
.giai-banner::after { content: '🏆'; position: absolute; right: 24px; top: 50%; transform: translateY(-50%); font-size: 4rem; opacity: 0.4; }
.giai-status { position: absolute; top: 14px; left: 14px; padding: 4px 12px; border-radius: 100px; font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px; }
.giai-status.mo { background: var(--c-green-bg); color: var(--c-green); }
.giai-status.dong { background: var(--c-red-bg); color: var(--c-red); }
.giai-status.ket_thuc { background: #f3f4f6; color: #6b7280; }
.giai-info { padding: 18px 20px; }
.giai-title { font-family: 'Lora', Georgia, serif; font-size: 1.15rem; font-weight: 700; color: var(--c-text); margin-bottom: 8px; }
.giai-meta { display: flex; gap: 16px; font-size: 0.85rem; color: var(--c-text-3); flex-wrap: wrap; margin-bottom: 14px; }

/* ===== Forms ===== */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.86rem; font-weight: 600; color: var(--c-text); margin-bottom: 6px; }
.form-input, .form-select { width: 100%; padding: 10px 14px; border: 1px solid var(--c-border); border-radius: 8px; font-size: 0.95rem; font-family: inherit; transition: all 0.15s; background: #fff; }
.form-input:focus, .form-select:focus { outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px rgba(59,130,246,0.15); }
.form-help { font-size: 0.78rem; color: var(--c-text-3); margin-top: 4px; }
.form-error { color: var(--c-red); font-size: 0.84rem; margin-top: 4px; }

/* ===== Search bar ===== */
.searchbox { display: flex; gap: 8px; background: #fff; border: 1px solid var(--c-border); border-radius: 12px; padding: 6px; box-shadow: var(--shadow-sm); }
.searchbox .form-input { border: none; flex: 1; padding: 10px 14px; }
.searchbox .form-input:focus { box-shadow: none; }
.searchbox .btn { padding: 10px 22px; }

/* ===== Filters ===== */
.filters { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr auto; gap: 10px; background: #fff; border: 1px solid var(--c-border); border-radius: 12px; padding: 14px; margin-bottom: 24px; }
.filters .form-input, .filters .form-select { padding: 9px 12px; font-size: 0.88rem; }
@media (max-width: 768px) { .filters { grid-template-columns: 1fr 1fr; } }

/* ===== Alert ===== */
.alert { padding: 12px 16px; border-radius: 8px; margin-bottom: 16px; font-size: 0.92rem; border: 1px solid; }
.alert-success { background: var(--c-green-bg); color: var(--c-green); border-color: #a7f3d0; }
.alert-error { background: var(--c-red-bg); color: var(--c-red); border-color: #fecaca; }
.alert-info { background: var(--c-primary-bg); color: var(--c-primary); border-color: #bfdbfe; }
.alert-warn { background: var(--c-yellow-bg); color: #92400e; border-color: #fde68a; }

/* ===== Badge ===== */
.badge { display: inline-block; padding: 3px 10px; border-radius: 4px; font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.badge-blue { background: var(--c-primary-bg); color: var(--c-primary); }
.badge-yellow { background: var(--c-yellow-bg); color: #92400e; }
.badge-green { background: var(--c-green-bg); color: var(--c-green); }
.badge-red { background: var(--c-red-bg); color: var(--c-red); }
.badge-purple { background: #ede9fe; color: var(--c-purple); }

/* ===== Table ===== */
.tbl { width: 100%; border-collapse: collapse; background: #fff; border-radius: 12px; overflow: hidden; box-shadow: var(--shadow-sm); }
.tbl th, .tbl td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--c-border); }
.tbl th { background: #f9fafb; font-size: 0.82rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; color: var(--c-text-3); }
.tbl tbody tr:hover { background: var(--c-bg); }
.tbl tbody tr:last-child td { border-bottom: none; }

/* ===== Pagination ===== */
.pagination { display: flex; justify-content: center; align-items: center; gap: 6px; margin-top: 24px; }
.pagination a, .pagination span { padding: 8px 14px; border-radius: 7px; border: 1px solid var(--c-border); background: #fff; color: var(--c-text-2); font-size: 0.88rem; font-weight: 500; }
.pagination a:hover { background: var(--c-primary-bg); color: var(--c-primary); border-color: var(--c-primary); }
.pagination .current { background: var(--c-primary); color: #fff; border-color: var(--c-primary); }

/* ===== Page header ===== */
.page-head { background: #fff; border-bottom: 1px solid var(--c-border); padding: 32px 0 24px; }
.page-head .container { display: flex; align-items: center; gap: 14px; }
.page-icon { width: 48px; height: 48px; background: var(--c-primary-bg); color: var(--c-primary); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.6rem; flex-shrink: 0; }
.page-head h1 { font-family: 'Lora', Georgia, serif; font-size: 1.5rem; font-weight: 700; color: var(--c-text); }
.page-head .breadcrumb { font-size: 0.84rem; color: var(--c-text-3); margin-top: 2px; }
.page-head .breadcrumb a { color: var(--c-primary); }
.page-head .breadcrumb a:hover { text-decoration: underline; }

/* ===== Footer ===== */
.footer { background: #f0f3f7; border-top: 1px solid #e0e5ec; padding: 32px 0; margin-top: 64px; color: var(--c-text-3); font-size: 0.88rem; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-left strong { color: var(--c-text); font-family: 'Lora', Georgia, serif; }
.footer-right { display: flex; gap: 24px; }
.footer-right a { color: var(--c-text-3); }
.footer-right a:hover { color: var(--c-primary); }

/* ===== Empty state ===== */
.empty { text-align: center; padding: 48px 24px; color: var(--c-text-3); }
.empty-icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.5; }
.empty h3 { font-family: 'Lora', Georgia, serif; font-size: 1.2rem; color: var(--c-text); margin-bottom: 6px; }

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .topbar-nav a:not(.topbar-cta) { display: none; }
  .hero { padding: 40px 0 60px; }
  section { padding: 40px 0; }
  .stats-grid { margin-top: -30px; }
  .footer-inner { flex-direction: column; text-align: center; }
}