@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@500&display=swap");

:root {
  --bg: #f0f8ff;
  --bg-soft: #e3eef9;
  --surface: #ffffff;

  --ink: #0d1117;
  --ink-soft: #4b5663;
  --placeholder: #8c99a6;

  --line: #cad8e6;
  --line-dark: #aebdca;

  --accent: #ff8c00;
  --accent-hover: #df7800;
  --accent-deep: #b96100;
  --accent-soft: rgba(255, 140, 0, 0.18);

  --success-bg: #e9f8ee;
  --success-text: #176b39;
  --success-line: #abdcbc;

  --error-bg: #fff0eb;
  --error-text: #a53b26;
  --error-line: #efb6a9;

  --dark: #06080c;

  --font-display: "Space Grotesk", Arial, Helvetica, sans-serif;

  --font-body: "Inter", Arial, Helvetica, sans-serif;

  --font-mono: "JetBrains Mono", monospace;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 28px;

  --shadow-soft: 0 12px 35px rgba(13, 17, 23, 0.09);

  --shadow-strong: 0 24px 65px rgba(13, 17, 23, 0.15);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;

  background:
    radial-gradient(
      circle at 12% 15%,
      rgba(255, 140, 0, 0.11),
      transparent 34%
    ),
    radial-gradient(
      circle at 88% 85%,
      rgba(33, 105, 178, 0.09),
      transparent 36%
    ),
    var(--bg);

  color: var(--ink);

  font-family: var(--font-body);
  line-height: 1.5;
}

main {
  min-height: 100vh;
}

button,
input,
select {
  font: inherit;
}

/* =========================================================
   PAGE CONTAINERS
   ========================================================= */

#registration-section,
#login-form {
  min-height: 100vh;

  display: flex;
  align-items: center;
  justify-content: center;

  padding: 3rem 1.25rem;
}

/* =========================================================
   FORM CARDS
   ========================================================= */

#registration-form,
#login-form-element {
  width: min(680px, 100%);

  display: flex;
  flex-direction: column;

  padding: 2.5rem;

  background-color: var(--surface);

  border: 1px solid var(--line);
  border-radius: var(--radius-lg);

  box-shadow: var(--shadow-soft);

  transition:
    box-shadow 0.25s ease,
    transform 0.25s ease;
}

#login-form-element {
  width: min(440px, 100%);
}

#registration-form:hover,
#login-form-element:hover {
  box-shadow: var(--shadow-strong);
}

/* =========================================================
   BRAND AREA
   ========================================================= */

.form-brand {
  display: flex;
  align-items: center;

  gap: 0.75rem;

  margin-bottom: 1.75rem;
}

.brand-mark {
  width: 48px;
  height: 48px;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  flex-shrink: 0;

  padding: 4px;

  background-color: var(--dark);

  border-radius: 50%;
}

.brand-mark img {
  display: block;

  width: 40px;
  height: 40px;

  object-fit: contain;

  border-radius: 50%;
}

.brand-name {
  color: var(--ink);

  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
}

/* =========================================================
   HEADINGS
   ========================================================= */

#registration-form h1,
#login-form-element h1 {
  margin: 0 0 0.5rem;

  color: var(--ink);

  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  font-weight: 700;
  line-height: 1.15;

  letter-spacing: -0.035em;
}

.form-sub {
  max-width: 600px;

  margin: 0 0 1.75rem;

  color: var(--ink-soft);

  font-size: 0.98rem;
  line-height: 1.65;
}

/* =========================================================
   FORM FEEDBACK
   ========================================================= */

.form-feedback {
  margin: 0 0 1.4rem;

  padding: 0.9rem 1rem;

  border: 1px solid var(--error-line);
  border-radius: var(--radius-sm);

  background-color: var(--error-bg);
  color: var(--error-text);

  font-size: 0.9rem;
  font-weight: 500;
}

.form-feedback.error {
  border-color: var(--error-line);

  background-color: var(--error-bg);
  color: var(--error-text);
}

.form-feedback.success {
  border-color: var(--success-line);

  background-color: var(--success-bg);
  color: var(--success-text);
}

/* =========================================================
   GRID AND FIELDS
   ========================================================= */

.field-grid {
  display: grid;

  grid-template-columns: repeat(2, minmax(0, 1fr));

  gap: 0 1.25rem;
}

.field {
  min-width: 0;

  display: flex;
  flex-direction: column;

  margin-bottom: 1.15rem;
}

#registration-form label,
#login-form-element label {
  display: inline-block;

  margin-bottom: 0.45rem;

  color: var(--accent-deep);

  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;

  letter-spacing: 0.075em;
  text-transform: uppercase;
}

/* =========================================================
   INPUTS AND SELECTS
   ========================================================= */

#registration-form input[type="text"],
#registration-form input[type="email"],
#registration-form input[type="tel"],
#registration-form input[type="number"],
#registration-form input[type="password"],
#registration-form select,
#login-form-element input[type="text"],
#login-form-element input[type="email"],
#login-form-element input[type="tel"],
#login-form-element input[type="number"],
#login-form-element input[type="password"],
#login-form-element select {
  width: 100%;
  min-width: 0;
  height: 48px;

  padding: 0 0.95rem;

  border: 1.5px solid var(--line);
  border-radius: var(--radius-sm);

  outline: none;

  background-color: #f8fbfe;
  color: var(--ink);

  font-family: var(--font-body);
  font-size: 0.96rem;

  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    background-color 0.2s ease;
}

#registration-form input::placeholder,
#login-form-element input::placeholder {
  color: var(--placeholder);

  opacity: 1;
}

#registration-form select,
#login-form-element select {
  cursor: pointer;
}

#registration-form input:hover,
#registration-form select:hover,
#login-form-element input:hover,
#login-form-element select:hover {
  border-color: var(--line-dark);
}

#registration-form input:focus,
#registration-form select:focus,
#login-form-element input:focus,
#login-form-element select:focus {
  border-color: var(--accent);

  background-color: #ffffff;

  box-shadow: 0 0 0 4px var(--accent-soft);
}

#registration-form input:disabled,
#registration-form select:disabled,
#registration-form button:disabled,
#login-form-element input:disabled,
#login-form-element select:disabled,
#login-form-element button:disabled {
  cursor: not-allowed;

  opacity: 0.65;
}

/* =========================================================
   FIELD ERRORS
   ========================================================= */

.field-error {
  min-height: 1.15rem;

  display: block;

  margin-top: 0.35rem;

  color: #bd3626;

  font-size: 0.78rem;
  line-height: 1.35;
}

/* =========================================================
   RADIO GROUP
   ========================================================= */

fieldset.radio-group {
  min-width: 0;

  display: flex;
  align-items: center;
  flex-wrap: wrap;

  gap: 1rem 1.75rem;

  margin: 0;
  padding: 1rem 1.1rem 1.05rem;

  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);

  background-color: #f8fbfe;
}

fieldset.radio-group legend {
  padding: 0 0.45rem;

  color: var(--accent-deep);

  font-family: var(--font-mono);
  font-size: 0.72rem;

  letter-spacing: 0.075em;
  text-transform: uppercase;
}

#registration-form .radio-option {
  display: inline-flex;
  align-items: center;

  gap: 0.55rem;

  margin: 0;

  color: var(--ink);

  font-family: var(--font-body);
  font-size: 0.95rem;

  letter-spacing: 0;
  text-transform: none;

  cursor: pointer;
}

.radio-option input[type="radio"] {
  width: 18px;
  height: 18px;

  flex-shrink: 0;

  margin: 0;

  accent-color: var(--accent);

  cursor: pointer;
}

/* =========================================================
   MEMBERSHIP NOTICE
   ========================================================= */

.membership-notice {
  margin-top: 1.25rem;

  padding: 1rem 1.1rem;

  border: 1px solid #f0c583;
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);

  background-color: #fff8ec;
}

.membership-notice p {
  margin: 0;

  color: #704514;

  font-size: 0.92rem;
  line-height: 1.55;
}

.membership-notice strong {
  color: var(--accent-deep);
}

/* =========================================================
   BUTTONS
   ========================================================= */

.form-actions {
  display: grid;

  grid-template-columns: minmax(0, 1fr) auto;

  align-items: center;

  gap: 0.8rem;

  margin-top: 1.4rem;
}

.btn-submit,
.btn-reset {
  min-height: 50px;

  border-radius: 999px;

  font-family: var(--font-display);
  font-weight: 600;

  transition:
    background-color 0.2s ease,
    color 0.2s ease,
    border-color 0.2s ease,
    transform 0.2s ease,
    box-shadow 0.2s ease;
}

.btn-submit {
  width: 100%;

  padding: 0 1.5rem;

  border: none;

  background-color: var(--accent);
  color: var(--dark);

  cursor: pointer;

  font-size: 1rem;
}

.btn-submit:hover:not(:disabled) {
  background-color: var(--accent-hover);
  color: #ffffff;

  transform: translateY(-2px);

  box-shadow: 0 10px 22px rgba(199, 106, 0, 0.24);
}

.btn-submit:active:not(:disabled) {
  transform: translateY(0);
}

.btn-reset {
  padding: 0 1.35rem;

  border: 1.5px solid var(--line);

  background-color: transparent;
  color: var(--ink-soft);

  cursor: pointer;

  font-size: 0.95rem;
}

.btn-reset:hover:not(:disabled) {
  border-color: var(--accent-deep);

  background-color: #fff8ed;
  color: var(--accent-deep);
}

#login-form-element > .btn-submit {
  width: 100%;

  margin-top: 0.35rem;
}

/* =========================================================
   LINKS
   ========================================================= */

.reset-link {
  display: block;

  margin-top: 1rem;

  color: var(--ink-soft);

  text-align: center;
  font-size: 0.86rem;
  text-decoration: none;
}

.reset-link:hover {
  color: var(--accent-deep);

  text-decoration: underline;
}

.switch-link {
  margin: 1.6rem 0 0;
  padding-top: 1.35rem;

  border-top: 1px solid var(--line);

  color: var(--ink-soft);

  text-align: center;
  font-size: 0.9rem;
}

.switch-link a {
  color: var(--accent-deep);

  font-weight: 600;
  text-decoration: none;
}

.switch-link a:hover {
  text-decoration: underline;
}

/* =========================================================
   TABLET
   ========================================================= */

@media (max-width: 700px) {
  #registration-section,
  #login-form {
    padding: 2rem 1rem;
  }

  #registration-form,
  #login-form-element {
    padding: 2rem 1.5rem;

    border-radius: 22px;
  }

  .field-grid {
    grid-template-columns: 1fr;

    gap: 0;
  }
}

/* =========================================================
   MOBILE
   ========================================================= */

@media (max-width: 480px) {
  #registration-section,
  #login-form {
    align-items: flex-start;

    padding: 1rem 0.75rem 2rem;
  }

  #registration-form,
  #login-form-element {
    padding: 1.5rem 1.1rem;

    border-radius: 18px;
  }

  .form-brand {
    margin-bottom: 1.35rem;
  }

  .brand-mark {
    width: 44px;
    height: 44px;
  }

  .brand-mark img {
    width: 36px;
    height: 36px;
  }

  #registration-form h1,
  #login-form-element h1 {
    font-size: 1.75rem;
  }

  .form-sub {
    margin-bottom: 1.35rem;

    font-size: 0.92rem;
  }

  fieldset.radio-group {
    align-items: flex-start;
    flex-direction: column;

    gap: 0.75rem;
  }

  .form-actions {
    grid-template-columns: 1fr;
  }

  .btn-reset {
    width: 100%;
  }
}