/* MAD - Mobile Athlete Data Collection
 * Responsive styles for registration form
 * Light/Dark theme support with ATA brand colours
 */

/* ============================================
   CSS CUSTOM PROPERTIES (Theme Variables)
   ============================================ */

/* Light Theme (Default) */
:root {
  /* Background colours */
  --color-bg-page: #FFFFFF;
  --color-bg-surface: #F4F6F8;
  --color-bg-muted: #f9f9f9;

  /* Text colours */
  --color-text-main: #131B1E;
  --color-text-secondary: #555555;
  --color-text-muted: #666666;

  /* Primary brand (ATA Teal) */
  --color-primary: #44BBB7;
  --color-primary-hover: #3AA5A1;
  --color-primary-foreground: #FFFFFF;

  /* Semantic colours */
  --color-error: #cc0000;
  --color-success: #155724;
  --color-success-bg: #d4edda;
  --color-success-border: #c3e6cb;
  --color-info: #004085;
  --color-info-bg: #cce5ff;
  --color-info-border: #b8daff;
  --color-error-bg: #f8d7da;
  --color-error-border: #f5c6cb;

  /* Border colours */
  --color-border: #cccccc;
  --color-border-light: #dddddd;
  --color-border-focus: var(--color-primary);

  /* Focus state */
  --color-focus-ring: var(--color-primary);

  /* Shadows */
  --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.1);

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
}

/* Dark Theme Override */
[data-theme='dark'] {
  /* Background colours */
  --color-bg-page: #131B1E;
  --color-bg-surface: #1C2629;
  --color-bg-muted: #232d31;

  /* Text colours */
  --color-text-main: #FFFFFF;
  --color-text-secondary: #A6A9AA;
  --color-text-muted: #888D8F;

  /* Primary brand (lighter teal for dark bg) */
  --color-primary: #44BBB7;
  --color-primary-hover: #5FCFCB;

  /* Semantic colours (adjusted for dark bg) */
  --color-success: #90EE90;
  --color-success-bg: #1a3d1a;
  --color-success-border: #2d5a2d;
  --color-info: #87CEEB;
  --color-info-bg: #1a2d3d;
  --color-info-border: #2d4a5a;
  --color-error: #ff6b6b;
  --color-error-bg: #3d1a1a;
  --color-error-border: #5a2d2d;

  /* Border colours */
  --color-border: #3a4245;
  --color-border-light: #4a5255;

  /* Shadows */
  --shadow-card: 0 2px 4px rgba(0, 0, 0, 0.3);
}

/* ============================================
   BASE RESET AND TYPOGRAPHY
   ============================================ */

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text-main);
  background-color: var(--color-bg-page);
  padding: var(--spacing-md);
}

h1 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  color: var(--color-text-main);
}

/* ============================================
   FORM LAYOUT
   ============================================ */

form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--color-bg-surface);
  padding: var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

fieldset {
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

legend {
  font-weight: 600;
  padding: 0 var(--spacing-sm);
  color: var(--color-text-main);
}

/* ============================================
   FORM CONTROLS
   ============================================ */

label {
  display: block;
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-xs);
  font-weight: 500;
  color: var(--color-text-main);
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  color: var(--color-text-main);
  background-color: var(--color-bg-surface);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-color: var(--color-border-focus);
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Checkbox styling */
input[type="checkbox"] {
  width: auto;
  margin-right: var(--spacing-sm);
  accent-color: var(--color-primary);
}

input[type="checkbox"] + label {
  display: inline;
  font-weight: normal;
}

/* Required field indicator */
input[aria-required="true"],
select[aria-required="true"],
textarea[aria-required="true"] {
  border-left: 3px solid var(--color-error);
}

/* ============================================
   SUBMIT BUTTON
   ============================================ */

button[type="submit"] {
  display: block;
  width: 100%;
  padding: var(--spacing-md);
  background-color: var(--color-primary);
  color: var(--color-primary-foreground);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: var(--spacing-md);
}

button[type="submit"]:hover {
  background-color: var(--color-primary-hover);
}

button[type="submit"]:focus,
button[type="submit"]:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Loading state */
button.loading {
  opacity: 0.7;
  cursor: wait;
}

/* ============================================
   TEXT ELEMENTS
   ============================================ */

/* Required field indicator text */
.required {
  color: var(--color-error);
  font-weight: 600;
}

/* Section notes */
.section-note {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-sm);
}

.guardian-statement {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-md);
  padding: 0.75rem;
  background-color: var(--color-bg-muted);
  border-left: 3px solid var(--color-primary);
}

/* ============================================
   CHECKBOX GROUPS
   ============================================ */

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
}

.checkbox-group input[type="checkbox"] {
  margin-top: var(--spacing-xs);
  min-width: 20px;
  min-height: 20px;
}

.checkbox-group label {
  display: inline;
  margin: 0;
  font-weight: normal;
  color: var(--color-text-main);
}

/* ============================================
   ERROR STATES
   ============================================ */

.field-error {
  border-color: var(--color-error) !important;
  border-left-width: 3px;
}

.error-message {
  display: block;
  color: var(--color-error);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
}

/* ============================================
   FORM STATUS MESSAGES
   ============================================ */

.form-status {
  padding: var(--spacing-md);
  border-radius: var(--radius-sm);
  margin-top: var(--spacing-md);
  display: none;
}

.form-status.success {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}

.form-status.error {
  background-color: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid var(--color-error-border);
}

.form-status.info {
  background-color: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid var(--color-info-border);
}

/* ============================================
   DISCOVERY FORM LINK
   ============================================ */

.discovery-link {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-primary-foreground) !important;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  font-weight: 600;
  margin: var(--spacing-sm) 0;
}

.discovery-link:hover {
  background-color: var(--color-primary-hover);
}

.discovery-note {
  display: block;
  font-size: 0.875rem;
  margin-top: var(--spacing-sm);
  opacity: 0.9;
}

/* ============================================
   ATHLETE BANNER (Discovery Form)
   ============================================ */

.athlete-banner {
  background-color: var(--color-info-bg);
  border: 1px solid var(--color-info-border);
  border-radius: var(--radius-sm);
  padding: 0.75rem var(--spacing-md);
  margin-bottom: var(--spacing-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.athlete-banner p {
  margin: 0;
  color: var(--color-info);
}

.athlete-banner strong {
  color: var(--color-primary);
}

/* ============================================
   CONTACT INFO (Consent section)
   ============================================ */

.contact-info {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: var(--spacing-md);
}

.contact-info a {
  color: var(--color-primary);
}

/* ============================================
   TEXTAREA
   ============================================ */

textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  resize: vertical;
  min-height: 60px;
  color: var(--color-text-main);
  background-color: var(--color-bg-surface);
}

textarea:focus,
textarea:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
  border-color: var(--color-border-focus);
}

textarea[aria-required="true"] {
  border-left: 3px solid var(--color-error);
}

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

@media (max-width: 480px) {
  body {
    padding: var(--spacing-sm);
  }

  form {
    padding: var(--spacing-md);
  }

  fieldset {
    padding: 0.75rem;
  }

  .athlete-banner {
    margin-left: var(--spacing-sm);
    margin-right: var(--spacing-sm);
  }
}