/* Design system dùng chung cho toàn bộ site - theo màu thương hiệu Sonnet
   (cam #f7931e -> đỏ #e6252c, logo hình lục giác chữ S/nút play).
   Sửa 1 chỗ ở đây là đổi màu toàn site - đừng rải màu cứng vào từng trang. */

:root {
  --brand-orange: #f7931e;
  --brand-red: #e6252c;
  --brand-gradient: linear-gradient(135deg, var(--brand-orange), var(--brand-red));

  --bg: #0f0f12;
  --bg-elevated: #17171b;
  --card: #1c1c21;
  --card-hover: #242429;
  --border: #2c2c33;
  --text: #f5f5f7;
  --text-muted: #9a9aa5;
  --text-faint: #6b6b75;

  --ok: #37d67a;
  --err: #ff5a5a;
  --warn: #ffb648;

  --radius: 14px;
  --radius-sm: 10px;
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.25);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

/* ---- Thanh header có logo ---- */
.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 16px;
}
.header-brand img { width: 32px; height: 32px; }
.header-brand .ten {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: 0.02em;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---- Nút bấm chính ---- */
.btn-brand {
  background: var(--brand-gradient);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 14px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
}
.btn-brand:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-brand:active:not(:disabled) { filter: brightness(0.92); }

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
}

/* ---- Form fields ---- */
label {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  margin: 16px 0 6px;
  font-weight: 600;
}
input, select, textarea {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px;
  color: var(--text);
  font-size: 15px;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--brand-orange);
}
textarea { resize: vertical; min-height: 90px; }

.honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* ---- Thẻ / card ---- */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow-card);
}

/* ---- Thông báo ---- */
.thong-bao {
  margin-top: 16px;
  padding: 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  display: none;
}
.thong-bao.loi { background: rgba(255, 90, 90, 0.12); color: var(--err); display: block; }
.thong-bao.thanh-cong { background: rgba(55, 214, 122, 0.12); color: var(--ok); display: block; }
.thong-bao.canh-bao { background: rgba(255, 182, 72, 0.12); color: var(--warn); display: block; }

.an { display: none !important; }

/* ---- Badge trạng thái (dùng ở trang quản trị) ---- */
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}
.badge.cho-xu-ly { background: rgba(255, 182, 72, 0.15); color: var(--warn); }
.badge.da-gui { background: rgba(55, 214, 122, 0.15); color: var(--ok); }
.badge.dang-xu-ly { background: rgba(90, 160, 255, 0.15); color: #5aa0ff; }

/* ---- Wrapper chuẩn cho trang form 1 cột ---- */
.wrap {
  width: 100%;
  max-width: 460px;
  margin: 0 auto;
  padding: 0 16px 48px;
}

.progress-bar {
  height: 4px;
  background: var(--border);
  border-radius: 999px;
  overflow: hidden;
  margin: 16px 0;
}
.progress-bar .fill {
  height: 100%;
  background: var(--brand-gradient);
  transition: width 0.25s ease;
}