/* ============================================================
   CBN Birthday Card – Elegant Tech Theme Stylesheet
   Celebrant: Mrs. Omoyemen A. Jide-Samuel
   Director, Information Technology Department, CBN
   Palette: Deep Forest Green (#0a3d2e), Rich Gold (#c9a84c),
            Tech Teal (#00c2a8), Ivory (#faf8f3)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400;1,600&family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400;1,500&family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@300;400&display=swap');

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

:root {
  --green-deep:   #0a3d2e;
  --green-mid:    #145c44;
  --green-light:  #1e7a5c;
  --gold:         #c9a84c;
  --gold-light:   #e2c97e;
  --gold-pale:    #f5e9c8;
  --teal:         #00c2a8;
  --teal-dim:     rgba(0,194,168,0.15);
  --teal-glow:    rgba(0,194,168,0.35);
  --ivory:        #faf8f3;
  --text-dark:    #1a1a1a;
  --text-mid:     #3d3d3d;
  --text-light:   #6b6b6b;
  --border-gold:  rgba(201,168,76,0.4);
  --border-teal:  rgba(0,194,168,0.3);
  --shadow:       0 8px 40px rgba(10,61,46,0.18);
  --shadow-card:  0 20px 70px rgba(10,61,46,0.25);
}

html { scroll-behavior: smooth; }

body {
  min-height: 100vh;
  /* Deep tech-night gradient with green undertone */
  background: linear-gradient(155deg, #050f0b 0%, #071a12 25%, #0a3d2e 55%, #081e16 80%, #030d09 100%);
  font-family: 'Inter', sans-serif;
  color: var(--text-dark);
  overflow-x: hidden;
}

/* ── Particle canvas (circuit + floating dots) ── */
#particles-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

/* ── Page wrapper ── */
.page-wrapper {
  position: relative;
  z-index: 1;
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

/* ── CBN Header badge ── */
.cbn-header {
  text-align: center;
  margin-bottom: 36px;
}

.cbn-badge {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: rgba(0,194,168,0.07);
  border: 1px solid rgba(0,194,168,0.25);
  border-radius: 60px;
  padding: 10px 24px;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 20px rgba(0,194,168,0.08);
}

.cbn-logo {
  width: 44px;
  height: 44px;
  object-fit: contain;
  border-radius: 50%;
  background: #fff;
  padding: 3px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.25);
  flex-shrink: 0;
}

.cbn-badge-text {
  text-align: left;
}

.cbn-badge-text span {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--teal);
}

.cbn-badge-text strong {
  display: block;
  font-family: 'Playfair Display', serif;
  font-size: 13px;
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* ── Main Birthday Card ── */
.birthday-card {
  background: var(--ivory);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(0,194,168,0.12);
  position: relative;
}

/* Decorative top border stripe — green | teal | gold | teal | green */
.card-stripe {
  height: 6px;
  background: linear-gradient(
    90deg,
    var(--green-deep) 0%,
    var(--teal) 30%,
    var(--gold) 50%,
    var(--teal) 70%,
    var(--green-deep) 100%
  );
}

/* Card inner padding */
.card-body {
  padding: 56px 64px 50px;
  position: relative;
}

/* Subtle grid overlay on card body */
.card-body::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,194,168,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,194,168,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

@media (max-width: 640px) {
  .card-body { padding: 40px 28px 36px; }
}

/* ── Occasion label ── */
.occasion-label {
  text-align: center;
  margin-bottom: 18px;
}

.occasion-label span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--teal);
  border: 1px solid var(--border-teal);
  border-radius: 3px;
  padding: 5px 18px;
  display: inline-block;
  background: rgba(0,194,168,0.05);
}

/* ── Circuit bar ornament ── */
.circuit-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin: 0 auto 24px;
  width: fit-content;
}

.circuit-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--teal), transparent);
  opacity: 0.5;
}

.circuit-node {
  width: 8px;
  height: 8px;
  border: 1.5px solid var(--teal);
  border-radius: 50%;
  background: rgba(0,194,168,0.15);
  flex-shrink: 0;
}

.circuit-node.pulse {
  width: 12px;
  height: 12px;
  background: var(--teal);
  border-color: var(--teal);
  box-shadow: 0 0 10px var(--teal-glow);
  animation: nodePulse 2.4s ease-in-out infinite;
}

@keyframes nodePulse {
  0%, 100% { box-shadow: 0 0 6px var(--teal-glow); transform: scale(1); }
  50%       { box-shadow: 0 0 18px var(--teal-glow); transform: scale(1.25); }
}

@media (max-width: 480px) {
  .circuit-line { width: 30px; }
}

/* ── Celebrant photo ── */
.celebrant-photo-wrap {
  position: relative;
  display: inline-block;
  margin-bottom: 24px;
}

.celebrant-photo-ring {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  padding: 4px;
  background: linear-gradient(135deg, var(--teal), var(--gold), var(--green-mid));
  box-shadow:
    0 0 0 6px rgba(0,194,168,0.1),
    0 0 30px rgba(0,194,168,0.25),
    0 8px 32px rgba(10,61,46,0.3);
  animation: photoGlow 3.5s ease-in-out infinite;
}

@keyframes photoGlow {
  0%, 100% { box-shadow: 0 0 0 6px rgba(0,194,168,0.1), 0 0 24px rgba(0,194,168,0.2), 0 8px 32px rgba(10,61,46,0.3); }
  50%       { box-shadow: 0 0 0 8px rgba(0,194,168,0.18), 0 0 40px rgba(0,194,168,0.35), 0 8px 32px rgba(10,61,46,0.35); }
}

.celebrant-photo {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  display: block;
  border: 3px solid var(--ivory);
}

/* Small IT badge overlaid on bottom-right of photo */
.celebrant-photo-badge {
  position: absolute;
  bottom: 4px;
  right: 4px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--green-deep), var(--green-mid));
  border: 2px solid var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal);
  font-size: 15px;
  box-shadow: 0 2px 10px rgba(0,194,168,0.4);
}

/* ── Celebrant info ── */
.celebrant-block {
  text-align: center;
  margin: 0 0 36px;
}

.happy-birthday-text {
  font-family: 'Playfair Display', serif;
  font-size: clamp(24px, 5vw, 38px);
  font-weight: 700;
  color: var(--green-deep);
  line-height: 1.15;
  margin-bottom: 6px;
}

.celebrant-name {
  font-family: 'Playfair Display', serif;
  font-size: clamp(26px, 5.5vw, 46px);
  font-weight: 700;
  color: var(--gold);
  line-height: 1.1;
  margin: 6px 0 12px;
  letter-spacing: -0.5px;
}

.celebrant-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(14px, 2.5vw, 17px);
  font-weight: 500;
  color: var(--text-mid);
  font-style: italic;
  line-height: 1.6;
  letter-spacing: 0.3px;
}

.birthday-date-line {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 400;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--teal);
}

.birthday-date-line::before,
.birthday-date-line::after {
  content: '';
  display: block;
  width: 36px;
  height: 1px;
  background: var(--teal);
  opacity: 0.5;
}

/* ── Gold/teal horizontal rule ── */
.gold-rule {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-gold) 30%, var(--border-teal) 50%, var(--border-gold) 70%, transparent);
  margin: 36px 0;
}

/* ── Card message ── */
.card-message {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(16px, 2.4vw, 19px);
  line-height: 1.85;
  color: var(--text-mid);
  text-align: justify;
  hyphens: auto;
  position: relative;
  z-index: 1;
}

.card-message .drop-cap::first-letter {
  font-size: 3.8em;
  font-weight: 700;
  color: var(--green-deep);
  float: left;
  line-height: 0.75;
  margin-right: 6px;
  margin-top: 8px;
  font-family: 'Playfair Display', serif;
}

.card-message p + p { margin-top: 20px; }

/* Inline tech highlight — teal underline for key phrases */
.card-message .tech-highlight {
  color: var(--green-deep);
  font-weight: 600;
  border-bottom: 1px solid var(--teal);
  padding-bottom: 1px;
}

.card-closing {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(16px, 2.4vw, 18px);
  font-weight: 600;
  color: var(--green-deep);
  margin-top: 18px;
  text-align: center;
  position: relative;
  z-index: 1;
}

/* ── IT Director badge ribbon ── */
.it-ribbon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 28px auto 0;
  padding: 12px 24px;
  background: linear-gradient(135deg, rgba(10,61,46,0.06), rgba(0,194,168,0.06));
  border: 1px solid var(--border-teal);
  border-radius: 3px;
  max-width: 480px;
}

.it-ribbon-icon {
  font-size: 22px;
  color: var(--teal);
  flex-shrink: 0;
}

.it-ribbon-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 1.5px;
  color: var(--green-mid);
  text-transform: uppercase;
}

/* ── Signatures Section ── */
.signatures-section {
  background: linear-gradient(160deg, #f0ede6 0%, var(--ivory) 100%);
  border-top: 1px solid var(--border-gold);
  padding: 50px 64px 60px;
  position: relative;
}

/* Subtle circuit watermark on signatures section */
.signatures-section::before {
  content: '</>';
  position: absolute;
  bottom: 20px;
  right: 30px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 80px;
  color: rgba(0,194,168,0.05);
  pointer-events: none;
  line-height: 1;
  font-weight: 300;
}

@media (max-width: 640px) {
  .signatures-section { padding: 36px 28px 44px; }
}

.section-heading {
  text-align: center;
  margin-bottom: 40px;
}

.section-heading h2 {
  font-family: 'Playfair Display', serif;
  font-size: clamp(18px, 3.5vw, 26px);
  font-weight: 700;
  color: var(--green-deep);
  margin-bottom: 8px;
}

.section-heading p {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: var(--text-light);
  letter-spacing: 0.3px;
}

/* ── Signature cards grid ── */
.signatures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}

.sig-card {
  background: #fff;
  border: 1px solid var(--border-gold);
  border-radius: 3px;
  padding: 22px 20px 18px;
  position: relative;
  box-shadow: 0 4px 18px rgba(10,61,46,0.07);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  animation: fadeInUp 0.5s ease forwards;
  overflow: hidden;
}

/* Tiny teal circuit dot watermark on each card */
.sig-card::after {
  content: '◦';
  position: absolute;
  bottom: 8px;
  right: 10px;
  font-size: 18px;
  color: var(--teal);
  opacity: 0.15;
}

.sig-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(10,61,46,0.13), 0 0 0 1px rgba(0,194,168,0.15);
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

.sig-card-accent {
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(180deg, var(--teal), var(--gold));
  border-radius: 3px 0 0 3px;
}

.sig-card-quote {
  font-size: 32px;
  color: var(--gold-pale);
  font-family: 'Playfair Display', serif;
  line-height: 1;
  margin-bottom: 6px;
}

.sig-card-message {
  font-family: 'Cormorant Garamond', serif;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-mid);
  font-style: italic;
  margin-bottom: 16px;
}

.sig-card-divider {
  border: none;
  border-top: 1px solid #ece8df;
  margin-bottom: 12px;
}

.sig-card-name {
  font-family: 'Playfair Display', serif;
  font-size: 14px;
  font-weight: 700;
  color: var(--green-deep);
}

.sig-card-role {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--text-light);
  margin-top: 2px;
  letter-spacing: 0.2px;
}

.sig-card-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: #aaa;
  margin-top: 6px;
}

.sig-card-reaction {
  font-size: 18px;
  margin-top: 8px;
  line-height: 1;
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 50px 20px;
  color: var(--text-light);
  grid-column: 1 / -1;
}

.empty-state .empty-icon { font-size: 48px; margin-bottom: 12px; opacity: 0.3; }

.empty-state p {
  font-family: 'Cormorant Garamond', serif;
  font-size: 17px;
  font-style: italic;
}

/* ── CTA Button ── */
.cta-wrap { text-align: center; }

.btn-sign {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, var(--green-deep) 0%, var(--green-mid) 100%);
  color: var(--teal);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: 1px solid rgba(0,194,168,0.3);
  border-radius: 3px;
  padding: 16px 36px;
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(10,61,46,0.35), 0 0 0 1px rgba(0,194,168,0.1);
  transition: all 0.25s ease;
  text-decoration: none;
}

.btn-sign:hover {
  background: linear-gradient(135deg, var(--green-mid) 0%, var(--green-light) 100%);
  color: #fff;
  box-shadow: 0 10px 32px rgba(10,61,46,0.45), 0 0 20px rgba(0,194,168,0.2);
  transform: translateY(-2px);
}

.btn-sign svg { flex-shrink: 0; }

/* Dashboard variant of sign button */
.btn-sign-dash {
  background: linear-gradient(135deg, #1a0a3d 0%, #3b1f6e 100%);
  color: #a78bfa;
  border-color: rgba(167,139,250,0.3);
}

.btn-sign-dash:hover {
  background: linear-gradient(135deg, #2d1060 0%, #5b2fa8 100%);
  color: #fff;
  box-shadow: 0 10px 32px rgba(91,47,168,0.4), 0 0 20px rgba(167,139,250,0.2);
}

/* ── Modal ── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(3,13,9,0.82);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal-box {
  background: var(--ivory);
  border-radius: 4px;
  padding: 48px 44px 40px;
  width: 100%;
  max-width: 520px;
  box-shadow: 0 30px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,194,168,0.15);
  transform: translateY(20px) scale(0.97);
  transition: transform 0.3s ease;
  position: relative;
  overflow: hidden;
}

/* Grid watermark on modal */
.modal-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,194,168,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,194,168,0.025) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.modal-overlay.active .modal-box {
  transform: translateY(0) scale(1);
}

@media (max-width: 560px) {
  .modal-box { padding: 36px 24px 30px; }
}

.modal-stripe {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 5px;
  background: linear-gradient(90deg, var(--green-deep), var(--teal), var(--gold), var(--teal), var(--green-deep));
  border-radius: 4px 4px 0 0;
}

.modal-close {
  position: absolute;
  top: 18px; right: 20px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-light);
  font-size: 20px;
  line-height: 1;
  padding: 4px;
  transition: color 0.2s;
  z-index: 1;
}

.modal-close:hover { color: var(--green-deep); }

.modal-title {
  font-family: 'Playfair Display', serif;
  font-size: clamp(20px, 4vw, 26px);
  font-weight: 700;
  color: var(--green-deep);
  margin-bottom: 6px;
  position: relative;
  z-index: 1;
}

.modal-subtitle {
  font-family: 'Cormorant Garamond', serif;
  font-size: 15px;
  font-style: italic;
  color: var(--text-light);
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

.form-group {
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}

.form-group label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green-mid);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  border: 1px solid #d8d4ca;
  border-radius: 3px;
  padding: 13px 15px;
  font-family: 'Cormorant Garamond', serif;
  font-size: 16px;
  color: var(--text-dark);
  background: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(0,194,168,0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
  line-height: 1.6;
}

.required-note {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  color: var(--text-light);
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--green-deep) 0%, var(--green-mid) 100%);
  color: var(--teal);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: 1px solid rgba(0,194,168,0.3);
  border-radius: 3px;
  padding: 16px;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 4px 16px rgba(10,61,46,0.3);
  position: relative;
  z-index: 1;
}

.btn-submit:hover:not(:disabled) {
  background: linear-gradient(135deg, var(--green-mid) 0%, var(--green-light) 100%);
  color: #fff;
  box-shadow: 0 8px 24px rgba(10,61,46,0.4), 0 0 15px rgba(0,194,168,0.15);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ── Toast notification ── */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--green-deep);
  color: var(--teal);
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 500;
  padding: 14px 28px;
  border-radius: 60px;
  border: 1px solid rgba(0,194,168,0.3);
  box-shadow: 0 8px 30px rgba(0,0,0,0.35), 0 0 20px rgba(0,194,168,0.15);
  z-index: 2000;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

/* ── Footer ── */
.card-footer {
  text-align: center;
  margin-top: 36px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: rgba(0,194,168,0.3);
  letter-spacing: 1px;
}

/* ── Loader spinner ── */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(0,194,168,0.2);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  vertical-align: middle;
  margin-right: 6px;
}

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

/* ── Signature count badge ── */
.sig-count-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0,194,168,0.07);
  border: 1px solid var(--border-teal);
  border-radius: 30px;
  padding: 4px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 400;
  color: var(--teal);
  margin-top: 10px;
  letter-spacing: 1px;
}

/* ── Responsive adjustments ── */
@media (max-width: 480px) {
  .page-wrapper { padding: 20px 12px 60px; }
  .signatures-grid { grid-template-columns: 1fr; }
  .circuit-line { width: 24px; }
}