@import './variables.css';

/* ==========================================================================
   Global Reset & Base Typography
   ========================================================================== */

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
  user-select: none; /* タッチパネル向けに誤選択防止 */
}

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

/* ==========================================================================
   Layout & App Shell
   ========================================================================== */

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-header {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 0.875rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary-500), var(--accent-cyan));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.brand-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-main);
}

.brand-subtitle {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Navigation Tabs */
.nav-tabs {
  display: flex;
  background: var(--bg-main);
  padding: 4px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-color);
}

.nav-tab {
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-tab.active {
  background: #ffffff;
  color: var(--primary-600);
  box-shadow: var(--shadow-sm);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.clock-display {
  font-family: 'Outfit', monospace;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--primary-700);
  background: var(--primary-50);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--primary-100);
}

/* ==========================================================================
   Buttons & UI Elements
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition-fast);
  border: 1px solid transparent;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-500));
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-success {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
}

.btn-danger {
  background: linear-gradient(135deg, #f43f5e, #e11d48);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(244, 63, 94, 0.25);
}

.btn-outline {
  background: #ffffff;
  border-color: var(--border-subtle);
  color: var(--text-main);
}

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

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  animation: fadeIn 0.2s ease-out;
}

.modal-content {
  background: #ffffff;
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  position: relative;
  animation: scaleUp 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes scaleUp {
  from { transform: scale(0.92); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}