/* ============================================
   diagnostico.css
   ============================================ */

:root {
  --blue-50: #e8f0fe;
  --blue-100: #c5d8fd;
  --blue-400: #4285f4;
  --blue-600: #1a73e8;
  --blue-700: #1557b0;
  --blue-900: #0d2b6b;
  --gray-50: #f8f9fa;
  --gray-100: #f1f3f4;
  --gray-200: #e8eaed;
  --gray-500: #5f6368;
  --gray-700: #3c4043;
  --gray-900: #202124;
  --white: #ffffff;
  --border: #dfe3e8;
  --text: #202124;
  --muted: #5f6368;
  --bg: #ffffff;
  --accent: #1a73e8;
  --accent-dark: #1557b0;
  --accent-light: rgba(26, 115, 232, 0.12);
  --error: #ef4444;
  --shadow: 0 30px 70px rgba(15, 23, 42, 0.08);
  --radius: 16px;
  --radius-sm: 10px;
  --font: 'Google Sans', 'Segoe UI', Arial, sans-serif;
  --font-body: 'Segoe UI', Arial, sans-serif;
}

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

body {
  font-family: var(--font);
  background: linear-gradient(180deg, #0d2b6b 0%, #1a73e8 36%, #1a73e8 100%);
  color: var(--gray-100);
}

/* ---- Hero ---- */
.diag-page {
  min-height: 100vh;
}

.diag-hero {
  background: linear-gradient(135deg, #1a73e8 0%, #0d2b6b 100%);
  min-height: 650px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4.25rem 1.75rem 6rem;
  position: relative;
  overflow: hidden;
}

.diag-hero::before {
  content: '';
  position: absolute;
  top: -140px;
  right: -100px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  pointer-events: none;
}
.diag-hero::after {
  content: '';
  position: absolute;
  bottom: -90px;
  left: 10%;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  pointer-events: none;
}

.diag-hero-badge {
  display: inline-flex;
  align-items: center;
  background: var(--blue-50);
  color: var(--blue-700);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1rem;
  position: relative;
}

.diag-hero-title {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  font-weight: 700;
  color: var(--white);
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
  position: relative;
}

.diag-highlight {
  background: linear-gradient(90deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.diag-hero-sub {
  color: rgba(255, 255, 255, 0.92);
  font-size: 1.02rem;
  line-height: 1.75;
  margin-bottom: 1.75rem;
  max-width: 520px;
  position: relative;
}

.diag-hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid var(--gray-200);
  position: relative;
}

.diag-stat {
  padding: 2.25rem 1.5rem;
  text-align: center;
  border-right: 1px solid var(--gray-200);
}

.diag-stat:last-child {
  border-right: none;
}

.diag-stat strong {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--blue-600);
  line-height: 1;
  margin-bottom: 0.35rem;
  letter-spacing: -0.03em;
}

.diag-stat span {
  font-size: 0.82rem;
  color: var(--gray-500);
  font-weight: 500;
}

/* ---- Section ---- */
.diag-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 3.5rem 1.75rem 4rem;
  background: transparent;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  box-shadow: none;
  margin-top: 0;
}

.diag-form-shell {
  width: 100%;
  max-width: 920px;
  margin: 2rem auto 0;
}

.diag-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.diag-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.diag-field-full {
  margin-bottom: 0.75rem;
}

.diag-form {
  padding: 1rem 1.25rem 1.25rem;
}

.diag-fieldset {
  border: none;
  padding: 0;
  margin: 0 0 1rem;
}

.diag-stepper {
  margin-bottom: 1rem;
}

.diag-stepper {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.8rem;
  margin-bottom: 1.5rem;
}

.diag-step-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem 0.9rem;
  text-align: center;
  transition:
    transform 0.25s ease,
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    background 0.25s ease;
  cursor: default;
}

.diag-step-item.active {
  border-color: var(--accent);
  background: linear-gradient(
    180deg,
    rgba(26, 115, 232, 0.08),
    rgba(255, 255, 255, 0.98)
  );
  box-shadow: 0 18px 35px rgba(26, 115, 232, 0.1);
  transform: translateY(-1px);
}

.diag-step-item span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  margin: 0 auto 0.45rem;
  border-radius: 999px;
  background: var(--gray-50);
  color: var(--accent);
  font-weight: 700;
}

.diag-step-item.active span {
  background: var(--accent);
  color: #fff;
}

.diag-step-item p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.diag-step {
  opacity: 0;
  transform: translateY(12px);
  max-height: 0;
  overflow: hidden;
  transition:
    opacity 0.35s ease,
    transform 0.35s ease,
    max-height 0.35s ease;
}

.diag-step.active {
  opacity: 1;
  transform: translateY(0);
  max-height: 1600px;
}

/* ---- Form Card ---- */
.diag-form-wrap {
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  box-shadow: 0 30px 70px rgba(15, 23, 42, 0.14);
  transition:
    transform 0.25s,
    box-shadow 0.25s,
    border-color 0.25s;
}

.diag-form-header {
  padding: 0;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
  margin-bottom: 0;
}

.diag-step-label {
  display: inline-flex;
  align-items: center;
  background: var(--blue-50);
  color: var(--blue-700);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.diag-form-header h2 {
  font-family: var(--font);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 0.35rem;
}

.diag-form {
  padding: 1.25rem 1.5rem 1.5rem;
}

/* ---- Fieldset ---- */
.diag-fieldset {
  border: none;
  padding: 0;
  margin: 0 0 1.25rem;
}

.diag-fieldset legend {
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--muted);
  padding: 0;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
}

.diag-fieldset legend::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ---- Row & Fields ---- */
.diag-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.95rem;
  margin-bottom: 0.95rem;
}

.diag-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.diag-field-full {
  margin-bottom: 1rem;
}

label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}

.req {
  color: var(--accent);
}

input,
select,
textarea {
  font-family: var(--font-body);
  font-size: 0.92rem;
  color: var(--text);
  background: var(--bg);
  border: 1.5px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 0.9rem;
  transition:
    border-color 0.18s,
    box-shadow 0.18s;
  outline: none;
  width: 100%;
}

input::placeholder,
textarea::placeholder {
  color: #9ca3af;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
  background: #fff;
}

input.invalid,
select.invalid,
textarea.invalid {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

select {
  cursor: pointer;
}

/* ---- Checkboxes ---- */
.diag-checkgroup {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.diag-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  border: 1.5px solid var(--border);
  border-radius: 20px;
  cursor: pointer;
  transition:
    border-color 0.18s,
    background 0.18s;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--muted);
  -webkit-user-select: none;
  user-select: none;
}

.diag-check:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.diag-check input[type='checkbox'] {
  display: none;
}

.diag-check:has(input:checked) {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- Error messages ---- */
.diag-error {
  font-size: 0.78rem;
  color: var(--error);
  min-height: 1rem;
}

/* ---- Form Footer ---- */
.diag-form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
  flex-wrap: wrap;
}

.diag-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hidden {
  display: none !important;
}

.diag-btn {
  font-family: var(--font);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--blue-700);
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  transition:
    background 0.18s,
    border-color 0.18s,
    transform 0.15s;
}

.diag-btn:hover {
  background: var(--gray-100);
  border-color: var(--accent);
}

.diag-next {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

.diag-next:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
}

.diag-privacy {
  font-size: 0.8rem;
  color: var(--muted);
  flex: 1;
}

.diag-submit {
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  background: var(--accent);
  border: none;
  border-radius: 10px;
  padding: 0.75rem 2rem;
  cursor: pointer;
  transition:
    background 0.18s,
    transform 0.15s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.diag-submit:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}
.diag-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-loader svg {
  width: 18px;
  height: 18px;
  animation: none;
}

/* ---- Success ---- */
.diag-success {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 3rem 2rem;
  text-align: center;
  animation: fadeUp 0.5s ease;
}

.diag-success-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 1.5rem;
}

.diag-success-icon svg {
  width: 100%;
  height: 100%;
}

.check-path {
  stroke-dasharray: 60;
  stroke-dashoffset: 60;
  animation: drawCheck 0.5s ease 0.2s forwards;
}

@keyframes drawCheck {
  to {
    stroke-dashoffset: 0;
  }
}

.diag-success h2 {
  font-family: var(--font);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.diag-success > p {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 440px;
  margin: 0 auto 1.5rem;
}

.diag-success-channels {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.diag-success-channel {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1.25rem;
  font-size: 1.5rem;
}

.diag-success-channel div {
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.diag-success-channel strong {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
}

.diag-success-channel small {
  font-size: 0.8rem;
  color: var(--muted);
}

.diag-success-note {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.diag-back-btn {
  display: inline-block;
  padding: 0.65rem 1.5rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  transition:
    border-color 0.18s,
    background 0.18s;
}

.diag-back-btn:hover {
  background: var(--bg);
  border-color: var(--accent);
  color: var(--accent);
}

/* ---- Responsive ---- */
@media (max-width: 640px) {
  .diag-hero {
    padding: 3rem 1.25rem 3.5rem;
  }
  .diag-hero-stats {
    gap: 1.25rem;
  }
  .diag-stat-divider {
    display: none;
  }
  .diag-form {
    padding: 1.25rem;
  }
  .diag-form-header {
    padding: 1.25rem 1.25rem 1rem;
  }
  .diag-row {
    grid-template-columns: 1fr;
  }
  .diag-form-footer {
    flex-direction: column;
    align-items: stretch;
  }
  .diag-submit {
    width: 100%;
    justify-content: center;
  }
  .diag-success {
    padding: 2rem 1.25rem;
  }
  .diag-success-channels {
    flex-direction: column;
    align-items: center;
  }
}