/* ==========================================================================
   UROVIDYA 5.0 — shared design system
   Used by index.html (registration) and all legal pages for a consistent look.
   ========================================================================== */

:root {
  --color-pink: #ec1e79;
  --color-pink-dark: #c9106a;
  --color-purple: #6a2c91;
  --color-purple-deep: #3d2472;
  --color-blue: #1477c6;
  --color-blue-deep: #123a8a;
  --color-white: #ffffff;
  --color-ink: #221933;
  --color-ink-soft: #4a3f5c;

  --gradient-page: linear-gradient(135deg, var(--color-pink) 0%, var(--color-purple) 42%, var(--color-purple-deep) 58%, var(--color-blue) 100%);
  --gradient-pill: linear-gradient(90deg, var(--color-pink) 0%, var(--color-purple-deep) 100%);
  --gradient-banner: linear-gradient(90deg, var(--color-blue) 0%, var(--color-purple) 55%, var(--color-pink) 100%);
  --gradient-brand-text: linear-gradient(90deg, var(--color-blue) 0%, var(--color-purple) 55%, var(--color-pink) 100%);

  --radius-card: 28px;
  --radius-field: 14px;
  --radius-pill: 999px;

  --shadow-card: 0 30px 60px -20px rgba(20, 10, 40, 0.45);
  --shadow-pill: 0 10px 24px -8px rgba(105, 20, 90, 0.55);

  --font-body: "Poppins", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-display: "Playfair Display", "Georgia", serif;
}

* {
  box-sizing: border-box;
}

.brand-strip {
  width: 100%;
  background: var(--color-white);
  display: flex;
  justify-content: center;
  padding: clamp(6px, 1.2vw, 14px) clamp(10px, 3vw, 32px);
}

.brand-strip img {
  display: block;
  width: auto;
  max-width: 100%;
  height: clamp(24px, 4.5vw, 56px);
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--gradient-page);
  background-attachment: fixed;
  display: flex;
  flex-direction: column;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
  display: block;
}

/* --------------------------------------------------------------------
   Registration page layout
   -------------------------------------------------------------------- */

.page {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: clamp(16px, 4vw, 48px);
}

.container {
  width: 100%;
  max-width: 1240px;
  display: flex;
  align-items: stretch;
  gap: clamp(20px, 3vw, 56px);
  flex: 1;
}

/* ---------- Left info card ---------- */

.info-card {
  flex: 1 1 54%;
  background: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: clamp(20px, 3vw, 40px) clamp(20px, 3.5vw, 48px);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: clamp(18px, 2.5vw, 28px);
}

.info-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: clamp(14px, 2vw, 22px);
  border-bottom: 1px solid #d8d4de;
  position: relative;
}

.info-card__header::before {
  content: "";
}

.logo {
  height: clamp(48px, 6vw, 78px);
  width: auto;
  object-fit: contain;
}

.collab-text {
  flex: 1;
  text-align: center;
  font-size: clamp(0.7rem, 1.3vw, 0.95rem);
  color: var(--color-ink);
  padding: 0 8px;
}

.welcome {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 2vw, 22px);
}

.welcome h1 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-style: italic;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
  color: var(--color-ink);
}

.flourish {
  width: clamp(40px, 6vw, 72px);
  height: 14px;
  flex-shrink: 0;
  background: no-repeat center / contain;
  opacity: 0.85;
}

.flourish--left {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 20'%3E%3Cpath d='M2 10 C 20 -2, 35 18, 52 8 C 62 2, 70 10, 78 8' stroke='%236a2c91' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3Ccircle cx='90' cy='8' r='3' fill='%23ec1e79'/%3E%3C/svg%3E");
  transform: scaleX(-1);
}

.flourish--right {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 100 20'%3E%3Cpath d='M2 10 C 20 -2, 35 18, 52 8 C 62 2, 70 10, 78 8' stroke='%236a2c91' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3Ccircle cx='90' cy='8' r='3' fill='%23ec1e79'/%3E%3C/svg%3E");
}

.event-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(4px, 1.5vw, 12px) 0;
}

.event-logo img {
  max-height: clamp(140px, 22vw, 240px);
  width: auto;
}

/* Fallback wordmark used only if assets/urovidya-logo.png is missing */
.event-logo__fallback {
  text-align: center;
  line-height: 1;
}

.event-logo__fallback .uro {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  background: var(--gradient-brand-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.event-logo__fallback .vidya {
  display: block;
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 700;
  color: var(--color-purple);
}

.event-logo__fallback .version {
  font-size: 0.4em;
  vertical-align: sub;
  color: var(--color-purple);
}

.tagline-banner {
  background: var(--gradient-banner);
  border-radius: 18px;
  padding: clamp(14px, 2.2vw, 22px) clamp(16px, 3vw, 28px);
  text-align: center;
}

.tagline-banner p {
  margin: 0;
  color: var(--color-white);
  font-weight: 700;
  font-size: clamp(0.95rem, 2vw, 1.3rem);
  line-height: 1.5;
}

/* ---------- Right form card ---------- */

.form-panel {
  flex: 1 1 42%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.form-card {
  position: relative;
  width: 100%;
  border: 1.5px solid rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-card);
  padding: clamp(38px, 5vw, 56px) clamp(20px, 3vw, 34px) clamp(34px, 4vw, 48px);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(12px, 1.8vw, 18px);
}

.pill-btn {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(1rem, 1.6vw, 1.25rem);
  color: var(--color-white);
  background: var(--gradient-pill);
  border: 2px solid rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-pill);
  padding: clamp(10px, 1.6vw, 15px) clamp(28px, 4vw, 44px);
  box-shadow: var(--shadow-pill);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
}

.pill-btn .chevron {
  font-weight: 700;
}

.pill-btn--top {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50%);
}

.pill-btn--bottom {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translate(-50%, 50%);
  width: calc(100% - 90px);
  justify-content: center;
}

.form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: clamp(12px, 1.8vw, 18px);
  margin-top: clamp(6px, 1vw, 10px);
  margin-bottom: clamp(10px, 1.5vw, 16px);
}

.field {
  width: 100%;
}

.field input,
.field select {
  width: 100%;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-ink);
  background: var(--color-white);
  border: none;
  border-radius: var(--radius-field);
  padding: clamp(12px, 1.6vw, 16px) clamp(16px, 2vw, 20px);
  outline: none;
  box-shadow: 0 4px 10px -4px rgba(20, 10, 40, 0.35);
  appearance: none;
}

.field input::placeholder {
  color: #8a8394;
}

.field input:focus,
.field select:focus {
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.85);
}

.field--select {
  position: relative;
}

.field--select::after {
  content: "";
  position: absolute;
  right: clamp(16px, 2vw, 20px);
  top: 50%;
  width: 10px;
  height: 10px;
  border: 2px solid var(--color-purple);
  border-top: none;
  border-left: none;
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}

.field select {
  cursor: pointer;
}

.field select:invalid {
  color: #8a8394;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-white);
  font-size: 0.95rem;
  cursor: pointer;
  user-select: none;
}

.checkbox input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.checkbox__box {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  background: var(--color-white);
  border: 1px solid rgba(255, 255, 255, 0.9);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.checkbox__box::after {
  content: "";
  width: 11px;
  height: 6px;
  border-left: 2px solid var(--color-purple);
  border-bottom: 2px solid var(--color-purple);
  transform: rotate(-45deg) translateY(-1px);
  opacity: 0;
}

.checkbox input:checked + .checkbox__box::after {
  opacity: 1;
}

.fee-note {
  text-align: center;
  color: var(--color-white);
  font-size: 0.85rem;
  opacity: 0.92;
}

.form-status {
  min-height: 1.2em;
  text-align: center;
  color: var(--color-white);
  font-size: 0.85rem;
  margin: 0;
}

.form-status.error {
  color: #ffd7e6;
  font-weight: 600;
}

/* --------------------------------------------------------------------
   Footer (shared across all pages)
   -------------------------------------------------------------------- */

.site-footer {
  width: 100%;
  padding: 20px clamp(16px, 4vw, 48px) 28px;
  text-align: center;
  color: rgba(255, 255, 255, 0.92);
  font-size: 0.8rem;
}

.site-footer nav {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 18px;
}

.site-footer a {
  color: var(--color-white);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.site-footer a:hover {
  opacity: 0.8;
}

.site-footer p {
  margin: 0 0 2px;
}

/* --------------------------------------------------------------------
   Legal / static content pages
   -------------------------------------------------------------------- */

.legal-page {
  flex: 1;
  display: flex;
  justify-content: center;
  padding: clamp(20px, 4vw, 56px) clamp(16px, 4vw, 24px);
}

.legal-card {
  width: 100%;
  max-width: 860px;
  background: var(--color-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: clamp(24px, 5vw, 56px);
}

.legal-card a.back-link {
  display: inline-block;
  margin-bottom: 20px;
  color: var(--color-purple);
  font-weight: 600;
  text-decoration: none;
}

.legal-card a.back-link:hover {
  text-decoration: underline;
}

.legal-card h1 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  color: var(--color-ink);
  margin-bottom: 4px;
}

.legal-card .updated {
  color: var(--color-ink-soft);
  font-size: 0.85rem;
  margin-bottom: 28px;
}

.legal-card h2 {
  font-size: 1.15rem;
  color: var(--color-purple-deep);
  margin-top: 28px;
  margin-bottom: 8px;
}

.legal-card p,
.legal-card li {
  color: var(--color-ink-soft);
  line-height: 1.7;
  font-size: 0.95rem;
}

.legal-card ul {
  padding-left: 22px;
}

.legal-card table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.9rem;
}

.legal-card th,
.legal-card td {
  border: 1px solid #e2dfe6;
  padding: 8px 10px;
  text-align: left;
  color: var(--color-ink-soft);
}

.legal-card .entity-block {
  background: #f7f4fa;
  border-radius: 14px;
  padding: 16px 20px;
  margin: 16px 0;
}

.legal-card .entity-block p {
  margin: 4px 0;
}

/* --------------------------------------------------------------------
   Responsive breakpoints
   -------------------------------------------------------------------- */

@media (max-width: 900px) {
  .container {
    flex-direction: column;
  }

  .container {
    align-items: normal;
  }

  .info-card,
  .form-panel {
    flex: 0 1 auto;
    width: 100%;
  }

  .form-card {
    margin-top: 24px;
  }

  .pill-btn--bottom {
    width: calc(100% - 60px);
  }
}

@media (max-width: 480px) {
  .info-card__header {
    flex-wrap: wrap;
    gap: 10px;
  }

  .collab-text {
    order: 3;
    flex-basis: 100%;
  }

  .welcome {
    gap: 8px;
  }

  .flourish {
    width: 32px;
  }

  .pill-btn--top {
    padding: 10px 26px;
    font-size: 0.95rem;
  }
}