@charset "utf-8";

/* =================================================================
   3@1 PROPERTIES — BUSINESS SIGNUP STYLESHEET
   ================================================================= */

/* ---------- 1. Design Tokens ---------- */
:root {
  /* Brand Palette */
  --color-navy-900: #001237;
  --color-navy-800: #0B1E49;
  --color-teal-600: #0B5D59;
  --color-teal-700: #073F3D;
  --color-gold-500: #D4B90E;
  --color-gold-600: #B39B0C;
  --color-sand-100: #F6F1E7;
  --color-sand-200: #EDE4D2;

  /* Neutrals */
  --color-white: #FFFFFF;
  --color-ink: #1A2036;
  --color-body: #454C61;
  --color-muted: #6B7185;
  --color-border: #DDE1EA;
  --color-surface: #F8F9FC;

  /* Feedback */
  --color-success-bg: #E8F5E9;
  --color-success-text: #1B5E20;
  --color-success-border: #A5D6A7;
  --color-error: #C0392B;

  /* Typography */
  --font-primary: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  --fs-xs: clamp(0.7813rem, 0.76rem + 0.11vw, 0.85rem);
  --fs-sm: clamp(0.875rem, 0.85rem + 0.13vw, 0.95rem);
  --fs-base: clamp(1rem, 0.97rem + 0.15vw, 1.0625rem);
  --fs-md: clamp(1.125rem, 1.06rem + 0.28vw, 1.3125rem);
  --fs-lg: clamp(1.375rem, 1.25rem + 0.55vw, 1.75rem);

  /* Elevation & Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 999px;
  --shadow-card: 0 18px 40px -12px rgba(0, 18, 55, 0.12);
  --shadow-focus: 0 0 0 3px rgba(11, 93, 89, 0.25);

  /* Transitions */
  --t-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- 2. CSS Reset ---------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-height: 100vh;
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  line-height: 1.5;
  color: var(--color-body);
  background: var(--color-sand-100);
  background-image: 
    radial-gradient(circle at 10% 10%, rgba(11, 93, 89, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 90% 90%, rgba(0, 18, 55, 0.06) 0%, transparent 50%);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.25rem, 3vw, 3rem) 1rem;
}

[hidden] {
  display: none !important;
}

/* ---------- 3. Layout Container ---------- */
.page-container {
  width: 100%;
  max-width: 48rem; /* 768px */
  margin-inline: auto;
}

.signup-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-sand-200);
  padding: clamp(1.75rem, 4vw, 3rem);
}

/* ---------- 4. Card Header ---------- */
.signup-card__header {
  text-align: center;
  margin-bottom: clamp(1.75rem, 3vw, 2.5rem);
  padding-bottom: clamp(1.25rem, 2vw, 1.75rem);
  border-bottom: 1px solid var(--color-sand-200);
}

.signup-card__logo-link {
  display: inline-block;
  margin-bottom: 1.25rem;
  transition: transform var(--t-fast);
}

.signup-card__logo-link:hover {
  transform: scale(1.03);
}

.signup-card__logo {
  height: auto;
  max-width: 170px;
}

.signup-card__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  color: var(--color-navy-900);
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

.signup-card__subtitle {
  font-size: var(--fs-sm);
  color: var(--color-muted);
  max-width: 42ch;
  margin-inline: auto;
}

/* ---------- 5. Success Message ---------- */
.success-card {
  background-color: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 2rem;
  animation: fadeIn 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

.success-card__icon-wrap {
  display: inline-grid;
  place-items: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-full);
  background: var(--color-success-border);
  color: var(--color-success-text);
  margin-bottom: 0.75rem;
}

.success-card__icon {
  width: 1.5rem;
  height: 1.5rem;
}

.success-card__title {
  font-size: var(--fs-md);
  font-weight: var(--fw-bold);
  color: var(--color-success-text);
  margin-bottom: 0.35rem;
}

.success-card__desc {
  font-size: var(--fs-sm);
  color: var(--color-success-text);
  max-width: 50ch;
  margin-inline: auto;
}

/* ---------- 6. Form & Inputs ---------- */
.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .form-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem 1.25rem;
  }

  .form-group--full {
    grid-column: span 2;
  }
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-navy-900);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}

.form-required {
  color: var(--color-error);
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--fs-sm);
  color: var(--color-ink);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color var(--t-fast), box-shadow var(--t-fast), background-color var(--t-fast);
  appearance: none;
}

.form-control::placeholder {
  color: var(--color-muted);
  opacity: 0.7;
}

.form-control:hover {
  border-color: var(--color-teal-600);
  background-color: var(--color-white);
}

.form-control:focus-visible {
  outline: none;
  border-color: var(--color-teal-600);
  background-color: var(--color-white);
  box-shadow: var(--shadow-focus);
}

/* Custom Select Dropdown Arrow */
.select-wrapper {
  position: relative;
}

.select-icon {
  position: absolute;
  right: 1rem;
  top: 50%;
  transform: translateY(-50%);
  width: 1.15rem;
  height: 1.15rem;
  color: var(--color-teal-600);
  pointer-events: none;
}

/* Custom File Upload Dropzone */
.file-dropzone {
  position: relative;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  padding: 1.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--t-fast), background-color var(--t-fast);
}

.file-dropzone:hover,
.file-dropzone:focus-within {
  border-color: var(--color-teal-600);
  background-color: color-mix(in srgb, var(--color-teal-600) 4%, white);
}

.file-dropzone__input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.file-dropzone__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
}

.file-dropzone__icon {
  width: 2.25rem;
  height: 2.25rem;
  color: var(--color-teal-600);
  margin-bottom: 0.5rem;
}

.file-dropzone__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-navy-900);
  margin-bottom: 0.15rem;
}

.file-dropzone__hint {
  font-size: var(--fs-xs);
  color: var(--color-muted);
}

/* ---------- 7. Submit Button ---------- */
.form-submit-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  margin-top: 2rem;
  padding: 1rem 1.75rem;
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-navy-900);
  background-color: var(--color-gold-500);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(212, 185, 14, 0.25);
  transition: transform var(--t-fast), background-color var(--t-fast), box-shadow var(--t-fast);
}

.form-submit-btn:hover {
  background-color: var(--color-gold-600);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(212, 185, 14, 0.35);
}

.form-submit-btn:active {
  transform: translateY(0);
}

.form-submit-btn:focus-visible {
  outline: 3px solid var(--color-navy-900);
  outline-offset: 3px;
}

.btn-icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}