@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Noto+Sans+JP:wght@300;400;500;600;700&display=swap');

/* ========== CSS Variables ========== */
:root {
  --color-bg: #0f1117;
  --color-bg-2: #161822;
  --color-bg-card: #1e2133;
  --color-bg-card-hover: #272a40;
  --color-border: #353855;
  --color-border-light: #464c6e;

  --color-primary: #7c74ff;
  --color-primary-hover: #8d86ff;
  --color-primary-light: rgba(124, 116, 255, 0.18);
  --color-secondary: #00dbb1;
  --color-secondary-light: rgba(0, 219, 177, 0.15);

  --color-text: #eceef8;
  --color-text-muted: #b0bacf;
  --color-text-dim: #9aa0bc;

  --color-success: #00d4aa;
  --color-warning: #ffa726;
  --color-error: #ef5350;
  --color-achieved: #ab47bc;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.15);

  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);

  --font-sans: 'Inter', 'Noto Sans JP', sans-serif;
  --max-width: 1200px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  cursor: pointer;
  font-family: inherit;
}

input,
textarea,
select {
  font-family: inherit;
}

/* ========== Layout ========== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.page-wrapper {
  min-height: calc(100vh - 72px);
  padding: 40px 0 80px;
}

/* ========== Typography ========== */
h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

/* ========== Header ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 16px;
}

.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.header-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-nav-link {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: var(--transition);
}

.header-nav-link:hover {
  color: var(--color-text);
  background: var(--color-primary-light);
}

.header-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--color-border);
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), #8b5cf6);
  color: white;
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.4);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(108, 99, 255, 0.5);
}

.btn-secondary {
  background: var(--color-bg-card);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg-card-hover);
  border-color: var(--color-border-light);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
}

.btn-danger {
  background: rgba(239, 83, 80, 0.15);
  color: var(--color-error);
  border: 1px solid rgba(239, 83, 80, 0.3);
}

.btn-danger:hover {
  background: rgba(239, 83, 80, 0.25);
}

.btn-sm {
  padding: 6px 14px;
  font-size: 0.8rem;
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

/* ========== Cards ========== */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}

.card:hover {
  border-color: var(--color-border-light);
  box-shadow: var(--shadow-card);
}

/* ========== Badge / Chip ========== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-recruiting {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid rgba(108, 99, 255, 0.3);
}

.badge-achieved {
  background: rgba(171, 71, 188, 0.15);
  color: var(--color-achieved);
  border: 1px solid rgba(171, 71, 188, 0.3);
}

.badge-closed {
  background: rgba(136, 145, 176, 0.15);
  color: var(--color-text-muted);
  border: 1px solid rgba(136, 145, 176, 0.3);
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  transition: var(--transition);
  cursor: pointer;
}

.chip:hover,
.chip.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ========== Progress Bar ========== */
.progress-bar {
  height: 6px;
  background: var(--color-border-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  border-radius: var(--radius-full);
  transition: width 0.5s ease;
}

/* ========== Form ========== */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
}

.form-input,
.form-textarea,
.form-select {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--color-text);
  transition: var(--transition);
  width: 100%;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

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

.form-select option {
  background: var(--color-bg-2);
}

.form-hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.form-error {
  font-size: 0.8rem;
  color: var(--color-error);
}

/* ========== App Card ========== */
.app-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 16px;
  cursor: pointer;
}

.app-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 8px 32px rgba(108, 99, 255, 0.15);
  transform: translateY(-2px);
}

.app-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.app-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
}

.app-card-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.app-card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.app-card-owner {
  display: flex;
  align-items: center;
  gap: 6px;
}

.app-card-owner-avatar {
  width: 20px;
  height: 20px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

/* ========== Grid ========== */
.app-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
}

/* ========== Page Header ========== */
.page-header {
  margin-bottom: 32px;
}

.page-header h1 {
  font-size: 1.75rem;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ========== Filter Bar ========== */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.filter-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-weight: 600;
  margin-right: 4px;
}

/* ========== Empty State ========== */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--color-text-muted);
}

.empty-state-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.empty-state h3 {
  font-size: 1.1rem;
  margin-bottom: 8px;
  color: var(--color-text);
}

.empty-state p {
  font-size: 0.9rem;
  margin-bottom: 24px;
}

/* ========== Dashboard ========== */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.stat-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.stat-card-value {
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.stat-card-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ========== Section ========== */
.section-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ========== Toast / Alert ========== */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
}

.alert-error {
  background: rgba(239, 83, 80, 0.1);
  border: 1px solid rgba(239, 83, 80, 0.3);
  color: var(--color-error);
}

.alert-success {
  background: rgba(0, 212, 170, 0.1);
  border: 1px solid rgba(0, 212, 170, 0.3);
  color: var(--color-success);
}

.alert-info {
  background: var(--color-primary-light);
  border: 1px solid rgba(124, 116, 255, 0.35);
  color: #a8a3ff;
}

/* ========== Modal ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-xl);
  padding: 32px;
  max-width: 480px;
  width: 100%;
  animation: modal-in 0.2s ease;
}

@keyframes modal-in {
  from {
    opacity: 0;
    transform: scale(0.95) translateY(8px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

/* ========== Loading ========== */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 80px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

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

/* ========== Hero section ========== */
.hero {
  text-align: center;
  padding: 100px 24px 80px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(108, 99, 255, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.04em;
}

.hero-title span {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 540px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  margin-top: 64px;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.hero-stat-value {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* ========== Feature section ========== */
.features {
  padding: 80px 0;
  background: var(--color-bg-2);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}

.feature-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.feature-icon {
  font-size: 32px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.05rem;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ========== Footer ========== */
.footer {
  background: var(--color-bg-2);
  border-top: 1px solid var(--color-border);
  padding: 32px 0;
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ========== Divider ========== */
.divider {
  height: 1px;
  background: var(--color-border);
  margin: 24px 0;
}

/* ========== Avatar placeholder ========== */
.avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: white;
  font-weight: 700;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
}

/* ========== Responsive ========== */
@media (max-width: 768px) {
  .app-grid {
    grid-template-columns: 1fr;
  }

  .header-logo span {
    display: none;
  }

  .hero {
    padding: 60px 24px 48px;
  }

  .hero-stats {
    gap: 32px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* ========== Comments ========== */
.comment-item {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--color-border);
}

.comment-item:last-child {
  border-bottom: none;
}

.comment-avatar {
  flex-shrink: 0;
}

.comment-body {
  flex: 1;
  min-width: 0;
}

.comment-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.comment-name {
  font-size: .875rem;
  font-weight: 600;
  color: var(--color-text);
}

.comment-date {
  font-size: .78rem;
  color: var(--color-text-muted);
}

.comment-delete-btn {
  margin-left: auto;
  background: none;
  border: none;
  font-size: .78rem;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.comment-delete-btn:hover {
  color: var(--color-error);
  background: rgba(239, 83, 80, 0.1);
}

.comment-text {
  font-size: .9rem;
  line-height: 1.65;
  color: var(--color-text);
  white-space: pre-wrap;
  word-break: break-word;
}

.comment-input {
  width: 100%;
  background: var(--color-bg-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: .9rem;
  padding: 10px 12px;
  transition: var(--transition);
}

.comment-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(124, 116, 255, 0.15);
}