:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --bg: #f1f5f9;
  --card-bg: #ffffff;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #16a34a;
  --danger: #dc2626;
  --radius: 14px;
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }

body {
  background: linear-gradient(160deg, #eef2ff 0%, #f8fafc 60%);
  color: var(--text);
  padding: 24px 16px;
  line-height: 1.7;
  min-height: 100vh;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  background: var(--card-bg);
  padding: 36px 32px;
  border-radius: 20px;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.08);
}

h1 {
  text-align: center;
  color: #0f172a;
  margin-bottom: 8px;
  font-size: 1.5rem;
}
.subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 0.92rem;
  margin-bottom: 28px;
}

.progress-bar {
  height: 6px;
  background: #e2e8f0;
  border-radius: 999px;
  margin-bottom: 30px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--primary);
  width: 0%;
  transition: width 0.3s ease;
}

.form-group { margin-bottom: 22px; }
label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 0.95rem; color: #0f172a; }
.required-mark { color: var(--danger); }

input[type="text"], input[type="email"], select, textarea {
  width: 100%; padding: 13px 15px; border: 1.5px solid #cbd5e1; border-radius: 10px;
  font-size: 1rem; transition: border-color 0.2s, box-shadow 0.2s; background: #fbfcfe;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary); outline: none; box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
textarea { resize: vertical; min-height: 60px; }

.error-msg {
  color: var(--danger); font-size: 0.82rem; margin-top: 5px; display: none;
}
.form-group.invalid input,
.form-group.invalid select,
.form-group.invalid textarea { border-color: var(--danger); }
.form-group.invalid .error-msg { display: block; }

/* حقل مخفي لمكافحة الروبوتات */
.hp-field { position: absolute; left: -9999px; top: -9999px; opacity: 0; }

.notice-box {
  background-color: #eff6ff; border-right: 4px solid var(--primary);
  padding: 16px 18px; border-radius: 10px; margin: 26px 0; font-size: 0.88rem; color: #1e40af;
}

button.btn-submit {
  width: 100%; background-color: var(--primary); color: white; border: none;
  padding: 15px; font-size: 1.05rem; font-weight: bold; border-radius: 10px;
  cursor: pointer; transition: background 0.2s, transform 0.1s;
}
button.btn-submit:hover:not(:disabled) { background-color: var(--primary-hover); }
button.btn-submit:active:not(:disabled) { transform: scale(0.99); }
button:disabled { background-color: #94a3b8; cursor: not-allowed; }

.top-error {
  background: #fef2f2; border: 1px solid #fecaca; color: var(--danger);
  padding: 14px 16px; border-radius: 10px; margin-bottom: 20px; font-size: 0.9rem; display: none;
}

/* صفحة النجاح */
#success-screen, #duplicate-screen { display: none; text-align: center; }
.congrats-title { color: var(--accent); font-size: 1.7rem; margin-bottom: 15px; }
.offers-list { background: #f0fdf4; border: 1px solid #bbf7d0; padding: 16px 18px; border-radius: 12px; margin: 20px 0; text-align: right; }
.offers-list li { margin-bottom: 10px; font-weight: 600; list-style-position: inside; }

.coupon-box {
  background: #f1f5f9; border: 2px dashed var(--primary); padding: 18px; border-radius: 12px;
  margin: 20px 0; width: 100%;
}
.coupon-code { font-size: 2rem; font-weight: bold; letter-spacing: 4px; color: #0f172a; margin-bottom: 12px; display: block; }
.btn-copy { background: #334155; color: white; border: none; padding: 9px 18px; border-radius: 8px; cursor: pointer; font-size: 0.9rem; }
.btn-copy:hover { background: #1e293b; }

.gm-notice {
  font-size: 1.1rem; font-weight: bold; color: var(--danger); margin: 24px 0; line-height: 1.6;
  background: #fef2f2; padding: 14px; border-radius: 10px;
}

.instructions { text-align: right; background: #fff8f1; border: 1px solid #ffedd5; padding: 18px; border-radius: 12px; margin-bottom: 25px; }
.instructions h3 { color: #c2410c; margin-bottom: 10px; font-size: 1.05rem; }
.instructions ol { padding-right: 20px; }
.instructions li { margin-bottom: 6px; }

.btn-fb {
  display: inline-block; width: 100%; background-color: #1877f2; color: white; text-decoration: none;
  padding: 15px; font-weight: bold; font-size: 1.05rem; border-radius: 10px; text-align: center;
  transition: background 0.2s;
}
.btn-fb:hover { background-color: #166fe5; }

.duplicate-note { color: var(--muted); font-size: 0.9rem; margin: 12px 0 20px; }