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

html,
body {
  height: 100%;
}

body {
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: radial-gradient(circle at top, #e5f0ff 0, #f3f4f6 45%, #f9fafb 100%);
  color: #111827;
}

/* ===== PAGE LAYOUT ===== */

.page-root {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* HEADER ATAS */

.page-header {
  padding: 0.85rem 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  background-color: rgba(15, 23, 42, 0.98);
  color: #e5e7eb;
  box-shadow: 0 8px 24px rgba(15, 23, 42, 0.5);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.brand-text h1 {
  font-size: 1.05rem;
  font-weight: 600;
}

.brand-text p {
  font-size: 0.78rem;
  color: #9ca3af;
}

.header-meta {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  text-align: right;
}

.meta-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #9ca3af;
}

.meta-value {
  font-size: 0.85rem;
  font-weight: 500;
}

/* ===== MAIN CONTENT ===== */

.page-main {
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 1.5rem auto 2rem;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* KARTU UTAMA & INFO */

.form-card,
.info-card {
  background-color: #ffffff;
  border-radius: 1rem;
  padding: 1.25rem 1.4rem;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.08);
  border: 1px solid #e5e7eb;
}

.form-card {
  border-top: 4px solid #2563eb;
}

.form-card h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.3rem;
}

.form-subtitle {
  font-size: 0.9rem;
  color: #4b5563;
  margin-bottom: 0.9rem;
}

/* FORM */

.atlet-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* Grid untuk field-field */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.85rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
}

.form-field-full {
  grid-column: 1 / -1;
}

.form-field label {
  font-size: 0.8rem;
  color: #4b5563;
}

.form-field input,
.form-field select {
  padding: 0.45rem 0.6rem;
  border-radius: 0.55rem;
  border: 1px solid #d1d5db;
  font-size: 0.85rem;
  background-color: #ffffff;
}

.form-field input::placeholder {
  color: #9ca3af;
  font-size: 0.82rem;
}

.form-field input:focus,
.form-field select:focus {
  outline: 2px solid #2563eb;
  outline-offset: 1px;
  border-color: #2563eb;
}

.form-actions {
  margin-top: 0.15rem;
  display: flex;
  justify-content: flex-end;
}

.btn-primary {
  border: none;
  outline: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 0.55rem 1.35rem;
  font-size: 0.9rem;
  font-weight: 500;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #f9fafb;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.45);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.15s ease;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 11px 26px rgba(37, 99, 235, 0.55);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.4);
}

.form-message {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  padding: 0.5rem 0.7rem;
  border-radius: 0.6rem;
}

.form-message.success {
  background-color: #dcfce7;
  color: #166534;
}

.form-message.error {
  background-color: #fee2e2;
  color: #b91c1c;
}

.form-note {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: #6b7280;
}

/* KARTU INFO */

.info-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.info-card ol {
  margin-left: 1.1rem;
  margin-top: 0.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.9rem;
  color: #4b5563;
}

.info-card code {
  padding: 0.08rem 0.3rem;
  border-radius: 0.3rem;
  background-color: #f3f4f6;
  font-size: 0.8rem;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 900px) {
  .page-main {
    margin-top: 1.25rem;
    padding-inline: 1.1rem;
  }
}

@media (max-width: 640px) {
  .page-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .meta-item {
    text-align: left;
  }

  .form-grid {
    grid-template-columns: minmax(0, 1fr); /* jadi 1 kolom di HP */
  }

  .form-card,
  .info-card {
    padding-inline: 1.05rem;
  }
}