/* ============================================
   amamriBoard - 회원 스타일시트
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:    #2563eb;
  --primary-dk: #1d4ed8;
  --danger:     #dc2626;
  --success:    #16a34a;
  --gray-50:    #f9fafb;
  --gray-100:   #f3f4f6;
  --gray-200:   #e5e7eb;
  --gray-400:   #9ca3af;
  --gray-600:   #4b5563;
  --gray-800:   #1f2937;
  --white:      #ffffff;
  --radius:     8px;
  --shadow-lg:  0 10px 25px rgba(0,0,0,.15);
  font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, '맑은 고딕', sans-serif;
}

body { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; }

/* ── Alert ── */
.alert {
  padding: 12px 16px; border-radius: var(--radius);
  margin-bottom: 16px; font-size: .875rem;
}
.alert-success { background: #dcfce7; color: #166534; border-left: 4px solid var(--success); }
.alert-error   { background: #fee2e2; color: #991b1b; border-left: 4px solid var(--danger); }
.alert-info    { background: #dbeafe; color: #1e40af; border-left: 4px solid var(--primary); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 11px 24px; border-radius: var(--radius); font-size: .95rem;
  font-weight: 600; cursor: pointer; text-decoration: none;
  border: none; transition: .2s; white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dk); transform: translateY(-1px); }
.btn-full { width: 100%; }

/* ── Form ── */
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: .875rem; font-weight: 600;
  color: var(--gray-600); margin-bottom: 6px;
}
.form-group input {
  width: 100%; padding: 11px 14px;
  border: 1.5px solid var(--gray-200); border-radius: var(--radius);
  font-size: .95rem; outline: none; transition: border-color .2s; background: var(--white);
}
.form-group input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.1); }
.form-group.has-error input { border-color: var(--danger); }
.field-error { display: block; color: var(--danger); font-size: .8rem; margin-top: 4px; }
.required { color: var(--danger); }

/* ── Login Page ── */
.login-page { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; }
.login-container {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 20px;
}
.login-box {
  background: var(--white); border-radius: 16px;
  padding: 48px 40px; width: 100%; max-width: 420px;
  box-shadow: var(--shadow-lg);
}
.login-logo { text-align: center; margin-bottom: 32px; }
.logo-icon  { font-size: 3rem; }
.login-logo h1 { font-size: 1.8rem; font-weight: 700; color: var(--gray-800); margin-top: 8px; }
.login-subtitle { color: var(--gray-400); font-size: .9rem; margin-top: 4px; }
.login-form .form-group { margin-bottom: 16px; }
.login-links {
  text-align: center; margin-top: 20px; font-size: .875rem; color: var(--gray-400);
}
.login-links a { color: var(--primary); font-weight: 600; text-decoration: none; margin-left: 4px; }
.login-links a:hover { text-decoration: underline; }

/* ── Signup Page ── */
.signup-page { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); min-height: 100vh; }
.signup-container {
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; padding: 40px 20px;
}
.signup-box {
  background: var(--white); border-radius: 16px;
  padding: 40px; width: 100%; max-width: 480px;
  box-shadow: var(--shadow-lg);
}
.signup-header {
  display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px;
}
.signup-header h2 { font-size: 1.4rem; font-weight: 700; color: var(--gray-800); }
.back-link { color: var(--gray-400); font-size: .875rem; text-decoration: none; }
.back-link:hover { color: var(--primary); }
.signup-form .form-group small { font-size: .78rem; color: var(--gray-400); font-weight: 400; }

/* ── Password toggle ── */
.pw-wrap { position: relative; }
.pw-wrap input { padding-right: 44px; }
.pw-toggle {
  position: absolute; right: 10px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; padding: 4px;
  color: var(--gray-400); display: flex; align-items: center;
}
.pw-toggle:hover { color: var(--gray-600); }
.eye-icon, .eye-off-icon { width: 18px; height: 18px; }