/* ==============================================================================
   WADESH POLYTECHNIC — MAINTENANCE DESIGN SYSTEM
   Theme: Academic Excellence, Trustworthy, Modern, Institutional
   Light Theme Focus, WCAG AA Compliant, Zero-Dependency Vanilla CSS
   ============================================================================== */

/* --- CSS Reset & Box Sizing --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* --- Design Tokens & CSS Custom Properties --- */
:root {
  /* Color Palette - Core Institutional Navy & Gold */
  --poly-navy-950: #060e1a;
  --poly-navy-900: #0a192f;
  --poly-navy-800: #10243e;
  --poly-navy-700: #1b3558;
  --poly-navy-600: #264a78;

  --poly-blue-600: #1d4ed8;
  --poly-blue-500: #2563eb;
  --poly-blue-400: #3b82f6;
  --poly-blue-100: #dbeafe;
  --poly-blue-50:  #eff6ff;

  --poly-gold-600: #b45309;
  --poly-gold-500: #d97706;
  --poly-gold-400: #f59e0b;
  --poly-gold-300: #fcd34d;
  --poly-gold-100: #fef3c7;
  --poly-gold-50:  #fffbeb;

  --status-amber: #f59e0b;
  --status-amber-glow: rgba(245, 158, 11, 0.4);

  /* Clean Institutional Surface Tokens */
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --bg-card-hover: #f8fafc;
  --border-card: rgba(203, 213, 225, 0.85);
  --border-subtle: rgba(226, 232, 240, 0.9);
  --text-primary: #0a192f;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --shadow-card: 0 10px 30px -5px rgba(15, 23, 42, 0.07), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --shadow-elevated: 0 20px 35px -8px rgba(15, 23, 42, 0.1), 0 8px 16px -4px rgba(15, 23, 42, 0.05);

  --badge-bg: var(--poly-gold-50);
  --badge-border: rgba(217, 119, 6, 0.35);
  --badge-text: #92400e;
  --input-bg: #ffffff;
  --input-border: #cbd5e1;
  --input-focus-glow: rgba(37, 99, 235, 0.2);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Layout & Spacing */
  --container-max-w: 960px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Base Body & Background Styling --- */
html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Subtle Institutional Background Atmosphere */
.bg-decor {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-decor-grid {
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(to right, rgba(37, 99, 235, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(37, 99, 235, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse at 50% 15%, black 45%, transparent 85%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 15%, black 45%, transparent 85%);
}

.bg-glow-sphere-top {
  position: absolute;
  top: -140px;
  left: 50%;
  transform: translateX(-50%);
  width: 680px;
  height: 440px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.12) 0%, rgba(245, 158, 11, 0.08) 55%, transparent 75%);
  filter: blur(60px);
}

.bg-glow-sphere-bottom {
  position: absolute;
  bottom: -80px;
  right: -50px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(217, 119, 6, 0.08) 0%, transparent 70%);
  filter: blur(50px);
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--poly-gold-500);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1.5rem;
  background: var(--poly-blue-600);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  z-index: 9999;
  text-decoration: none;
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 1rem;
}

/* --- Header / Top Bar --- */
.site-header {
  position: relative;
  z-index: 10;
  width: 100%;
  padding: 1.25rem 1.5rem;
}

.header-container {
  max-width: var(--container-max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-anchor {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
  color: var(--text-primary);
}

.header-logo-img {
  width: 46px;
  height: 46px;
  object-fit: contain;
  border-radius: var(--radius-full);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
  background: #ffffff;
  padding: 2px;
}

.brand-title-wrap {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
}

.brand-subtitle {
  font-size: 0.725rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--poly-gold-600);
}

/* Status Pill */
.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-full);
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.pulse-dot {
  position: relative;
  width: 9px;
  height: 9px;
  border-radius: var(--radius-full);
  background-color: var(--status-amber);
}

.pulse-dot::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: var(--radius-full);
  background-color: var(--status-amber);
  opacity: 0.6;
  animation: radar-pulse 2s cubic-bezier(0.24, 0, 0.38, 1) infinite;
}

@keyframes radar-pulse {
  0% { transform: scale(0.9); opacity: 0.8; }
  70% { transform: scale(2.4); opacity: 0; }
  100% { transform: scale(2.4); opacity: 0; }
}

/* --- Main Layout --- */
.main-wrapper {
  position: relative;
  z-index: 1;
  flex: 1;
  width: 100%;
  max-width: var(--container-max-w);
  margin: 0 auto;
  padding: 1.5rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

/* --- Hero Section --- */
.hero-section {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 1rem;
}

.hero-seal-container {
  position: relative;
  margin-bottom: 1.75rem;
}

.hero-seal-aura {
  position: absolute;
  inset: -12px;
  border-radius: var(--radius-full);
  background: radial-gradient(circle, rgba(245, 158, 11, 0.25) 0%, rgba(37, 99, 235, 0.15) 60%, transparent 80%);
  filter: blur(14px);
}

.hero-logo-img {
  position: relative;
  width: 110px;
  height: 110px;
  object-fit: contain;
  border-radius: var(--radius-full);
  background: #ffffff;
  padding: 3px;
  box-shadow: 0 10px 28px rgba(10, 25, 47, 0.14), 0 0 0 3px rgba(217, 119, 6, 0.25);
}

.hero-notice-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-full);
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2rem, 4.5vw, 3.1rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.18;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}

.hero-title-accent {
  background: linear-gradient(135deg, var(--poly-blue-600) 0%, var(--poly-navy-900) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.hero-description {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 660px;
  margin-bottom: 2rem;
}

/* Urgent Alert Box */
.urgent-alert-box {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-left: 4px solid var(--poly-gold-500);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.35rem;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  text-align: left;
  max-width: 680px;
  box-shadow: var(--shadow-card);
}

.urgent-alert-box svg {
  color: var(--poly-gold-500);
  flex-shrink: 0;
  margin-top: 2px;
}

.urgent-alert-text {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.urgent-alert-text strong {
  color: var(--text-primary);
}

/* --- Email Notification Signup Card --- */
.notify-section {
  max-width: 620px;
  width: 100%;
  margin: 0 auto;
}

.notify-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2.25rem 2rem;
  box-shadow: var(--shadow-card);
  text-align: center;
}

.notify-icon-circle {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: rgba(37, 99, 235, 0.1);
  color: var(--poly-blue-600);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.notify-title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.notify-subtext {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.75rem;
}

.notify-form {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  max-width: 480px;
  margin: 0 auto;
}

.notify-input-group {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

@media (min-width: 580px) {
  .notify-input-group {
    flex-direction: row;
  }
}

.notify-input {
  flex: 1;
  padding: 0.875rem 1.15rem;
  font-family: inherit;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-primary);
  transition: var(--transition-smooth);
}

.notify-input::placeholder {
  color: var(--text-muted);
}

.notify-input:focus {
  outline: none;
  border-color: var(--poly-gold-500);
  box-shadow: 0 0 0 3px var(--input-focus-glow);
}

.notify-submit-btn {
  padding: 0.875rem 1.75rem;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, var(--poly-blue-600) 0%, var(--poly-navy-900) 100%);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(29, 78, 216, 0.25);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: var(--transition-smooth);
  white-space: nowrap;
}

.notify-submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(29, 78, 216, 0.35);
}

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

.notify-submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

.btn-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}
.is-loading .btn-spinner {
  display: inline-block;
}
.is-loading .btn-text {
  opacity: 0.8;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Form Feedback */
.form-feedback {
  margin-top: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  line-height: 1.4;
  display: none;
  text-align: left;
}

.form-feedback.is-visible {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.form-feedback.feedback-success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #065f46;
}

.form-feedback.feedback-error {
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #991b1b;
}

.privacy-note {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
}

/* --- Official Registrar Contact Card (Centered & Prominent) --- */
.contact-section {
  width: 100%;
}

.section-head {
  text-align: center;
  max-width: 580px;
  margin: 0 auto 1.75rem;
}

.section-tag {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--poly-gold-600);
  margin-bottom: 0.35rem;
  display: block;
}

.section-title {
  font-size: clamp(1.4rem, 3vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.section-subtitle {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.single-contact-wrapper {
  max-width: 580px;
  margin: 0 auto;
}

.contact-card {
  background: #ffffff;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: var(--transition-smooth);
}

.contact-card:hover {
  transform: translateY(-2px);
  border-color: var(--poly-gold-400);
  box-shadow: var(--shadow-elevated);
}

.contact-card-top {
  margin-bottom: 1.5rem;
}

.contact-icon-wrapper {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  background: rgba(217, 119, 6, 0.12);
  color: var(--poly-gold-600);
}

.contact-card-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.4rem;
}

.contact-card-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.contact-action-link {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  background: rgba(30, 58, 138, 0.04);
  border: 1px solid var(--border-card);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.contact-action-link:hover {
  background: var(--poly-gold-500);
  border-color: var(--poly-gold-500);
  color: #ffffff;
}

.contact-action-link svg {
  width: 18px;
  height: 18px;
  transition: transform 0.2s ease;
}

.contact-action-link:hover svg {
  transform: translateX(4px);
}

/* --- Footer --- */
.site-footer {
  position: relative;
  z-index: 10;
  width: 100%;
  border-top: 1px solid var(--border-card);
  background: #ffffff;
  padding: 2.25rem 1.5rem;
  margin-top: auto;
}

.footer-container {
  max-width: var(--container-max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
}

@media (min-width: 640px) {
  .footer-container {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.footer-motto {
  font-size: 0.8125rem;
  font-style: italic;
  font-weight: 600;
  color: var(--poly-gold-600);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

@media (min-width: 640px) {
  .footer-meta {
    align-items: flex-end;
  }
}

.footer-location {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.footer-location svg {
  width: 14px;
  height: 14px;
  color: var(--poly-gold-600);
}

/* --- Restored Banner --- */
.restored-banner {
  display: none;
  position: sticky;
  top: 0;
  z-index: 999;
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: #ffffff;
  padding: 0.85rem 1.5rem;
  text-align: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.restored-banner.is-active {
  display: block;
}

.restored-banner a {
  color: #ffffff;
  text-decoration: underline;
  margin-left: 0.5rem;
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}