:root {
  --ghost: #f7f7ff;
  --persian: #27187e;
  --background: #f7f7ff;
  --foreground: #15103f;
  --ink: #0e0a2c;
  --ink-soft: #4a4470;
  --surface: #ffffff;
  --surface-2: #efefff;
  --line: #d8d8ee;
  --line-strong: #15103f;
  --accent-2: #ffd166;
  --destructive: #c5283d;
  --font-display: "Space Grotesk", sans-serif;
  --font-sans: "Inter", sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  border-color: var(--line);
}

html {
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  background: var(--background);
  color: var(--foreground);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  letter-spacing: -0.04em;
  line-height: 0.95;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* Backgrounds */
.bg-grid {
  background-image: linear-gradient(to right, rgba(39, 24, 126, 0.09) 1px, transparent 1px), linear-gradient(to bottom, rgba(39, 24, 126, 0.09) 1px, transparent 1px);
  background-size: 40px 40px;
}

.bg-grid-dark {
  background-image: linear-gradient(to right, rgba(247, 247, 255, 0.06) 1px, transparent 1px), linear-gradient(to bottom, rgba(247, 247, 255, 0.06) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* Animations */
@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 0.35;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.4);
  }
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

.reveal {
  animation: reveal-up 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

.pulse-dot {
  animation: pulse-dot 1.6s ease-in-out infinite;
}

.ticker-track {
  animation: ticker 40s linear infinite;
}

/* Components */
.box {
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.box-shadow-hard {
  box-shadow: 6px 6px 0 0 var(--persian);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.box-shadow-hard:hover {
  transform: translate(-2px, -2px);
  box-shadow: 10px 10px 0 0 var(--persian);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  background: var(--surface);
}

.btn-primary,
button.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--persian);
  color: var(--ghost);
  padding: 0.85rem 1.4rem;
  font-weight: 600;
  border: 1px solid var(--persian);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 4px 4px 0 0 var(--ink);
  cursor: pointer;
  font-size: 1rem;
  text-decoration: none;
  font-family: inherit;
}

.btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 0 var(--ink);
}

.btn-ghost,
button.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--ink);
  padding: 0.85rem 1.4rem;
  font-weight: 600;
  border: 1px solid var(--line-strong);
  transition: background 0.2s ease;
  cursor: pointer;
  font-size: 1rem;
  text-decoration: none;
  font-family: inherit;
}

.btn-ghost:hover {
  background: var(--surface-2);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--persian);
  font-weight: 700;
}

.section-label::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--persian);
}

.container {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-sm {
  max-width: 56rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Nav */
.nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--line-strong);
  background: var(--background);
  position: relative;
  z-index: 10;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--ink);
  text-decoration: none;
}

.nav-logo img {
  width: 2rem;
  height: 2rem;
  object-fit: contain;
}

/* Forms */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  font-size: 0.95rem;
  font-family: inherit;
}

.form-input:focus {
  outline: none;
  border-color: var(--persian);
}

textarea.form-input {
  min-height: 100px;
  resize: vertical;
}

select.form-input {
  width: auto;
  min-width: 160px;
}

/* Project card */
.project-card {
  display: block;
  padding: 1.5rem;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
}

.project-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 0 var(--persian);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-due {
  background: #fef3c7;
  color: #92400e;
}

.badge-submitted {
  background: #d1fae5;
  color: #065f46;
}

.badge-brief {
  background: #dbeafe;
  color: #1e40af;
}

/* Member list */
.member-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--line);
  gap: 0.75rem;
}

.member-row:last-child {
  border-bottom: none;
}

/* Brief markdown */
.brief-content h1,
.brief-content h2,
.brief-content h3 {
  margin: 1rem 0 0.5rem;
}

.brief-content p {
  margin: 0.5rem 0;
  line-height: 1.6;
}

.brief-content ul {
  margin: 0.5rem 0;
  padding-left: 1.5rem;
}

.brief-content li {
  margin: 0.25rem 0;
  line-height: 1.5;
}

.brief-content strong {
  font-weight: 600;
}

.brief-content code {
  background: var(--surface-2);
  padding: 0.1rem 0.3rem;
  border-radius: 0.2rem;
  font-size: 0.9em;
}

.brief-content em {
  font-style: italic;
}

/* Color coding */
.cc-blocker {
  background: #fee2e2;
  padding: 0.1rem 0.3rem;
  border-radius: 0.2rem;
  color: #991b1b;
}

.cc-progress {
  background: #d1fae5;
  padding: 0.1rem 0.3rem;
  border-radius: 0.2rem;
  color: #065f46;
}

.cc-new {
  background: #dbeafe;
  padding: 0.1rem 0.3rem;
  border-radius: 0.2rem;
  color: #1e40af;
}

.cc-missing {
  background: #fef3c7;
  padding: 0.1rem 0.3rem;
  border-radius: 0.2rem;
  color: #92400e;
}

#app {
  display: block;
  min-height: 100vh;
}

#app.loading {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
}

#app.loading > * {
  width: 100%;
  align-self: stretch;
}

.loading-dot {
  width: 0.75rem;
  height: 0.75rem;
  background: var(--persian);
  transform: rotate(45deg);
  animation: pulse-dot 1.6s ease-in-out infinite;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  padding: 1rem 1.5rem;
  background: var(--ink);
  color: var(--ghost);
  border-radius: 0.25rem;
  z-index: 1000;
  animation: reveal-up 0.3s ease;
  max-width: 400px;
}

.toast-error {
  background: var(--destructive);
}

/* Utility */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }