/* ===== ActionSpark Design System ===== */
/* Based on website-building-guidelines.md */

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

:root {
  /* === Core Colors (from guidelines) === */
  --color-bg: #f6f8fc;
  --color-bg-gradient-a: #f6f8fc;
  --color-bg-gradient-b: #edf3ff;
  --color-surface: #ffffff;
  --color-surface-soft: #f9fbff;
  --color-text-strong: #1f2a44;
  --color-text-soft: #4f5d78;
  --color-text-muted: #7e8aa3;
  --color-primary: #1f6feb;
  --color-primary-hover: #1a5fcc;
  --color-primary-soft: #dce9ff;
  --color-border: #d8e1f0;
  --color-success: #0f9d58;
  --color-warning: #d97706;
  --color-error: #c92a2a;
  --color-info: #2563eb;

  /* === ActionSpark Brand Extended === */
  --color-accent: #f59e0b;
  --color-accent-hover: #d97706;
  --color-accent-soft: #fef3c7;
  --color-phase-design: #8b5cf6;
  --color-phase-launch: #06b6d4;
  --color-phase-kickoff: #10b981;
  --color-phase-coaching: #f59e0b;
  --color-phase-present: #ec4899;
  --color-phase-review: #ef4444;
  --color-phase-track: #6366f1;

  /* === Fonts === */
  --font-heading: "Montserrat", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;
  --font-code: "JetBrains Mono", "Consolas", monospace;

  /* === Type Scale === */
  --text-hero: 48px;
  --text-page: 36px;
  --text-section: 28px;
  --text-card: 22px;
  --text-body: 18px;
  --text-small: 16px;
  --text-tiny: 14px;

  /* === Spacing === */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-7: 32px;
  --sp-8: 40px;
  --sp-9: 48px;
  --sp-10: 64px;

  /* === Radius === */
  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  /* === Shadows === */
  --shadow-card: 0 10px 30px rgba(20, 35, 70, 0.10);
  --shadow-hover: 0 14px 34px rgba(20, 35, 70, 0.14);
  --shadow-sm: 0 2px 8px rgba(20, 35, 70, 0.06);
  --shadow-lg: 0 20px 60px rgba(20, 35, 70, 0.12);

  /* === Layout === */
  --max-width: 1120px;
  --reading-width: 720px;
  --page-padding: 24px;
  --header-height: 72px;
  --sidebar-width: 260px;

  /* === Motion === */
  --transition: 160ms ease;
  --transition-slow: 300ms ease;
}

@media (max-width: 768px) {
  :root {
    --page-padding: 16px;
    --text-hero: 36px;
    --text-page: 28px;
    --text-section: 22px;
    --text-card: 18px;
    --header-height: 60px;
    --sidebar-width: 0px;
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: 1.6;
  color: var(--color-text-strong);
  background: var(--color-bg);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-hover);
}

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

/* === Utility Classes === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--page-padding);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  height: 48px;
  padding: 0 var(--sp-5);
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: var(--text-small);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background: #ffffff;
  color: var(--color-text-strong);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-accent {
  background: var(--color-accent);
  color: #ffffff;
}

.btn-accent:hover {
  background: var(--color-accent-hover);
}

.btn-sm {
  height: 36px;
  padding: 0 var(--sp-4);
  font-size: var(--text-tiny);
}

.btn-lg {
  height: 56px;
  padding: 0 var(--sp-7);
  font-size: var(--text-body);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-sm);
}

/* === Card === */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--sp-6);
  transition: all var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-1px);
}

.card-flat {
  box-shadow: none;
  border: 1px solid var(--color-border);
}

.card-flat:hover {
  box-shadow: var(--shadow-sm);
}

/* === Input === */
.input, .textarea, .select {
  height: 48px;
  border: 1px solid var(--color-border);
  background: #ffffff;
  border-radius: var(--radius-sm);
  padding: 0 var(--sp-4);
  font-family: var(--font-body);
  font-size: var(--text-small);
  color: var(--color-text-strong);
  transition: all var(--transition);
  width: 100%;
}

.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31, 111, 235, 0.20);
}

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

.textarea {
  height: auto;
  min-height: 120px;
  padding: var(--sp-3) var(--sp-4);
  resize: vertical;
}

.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%237e8aa3' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* === Form Group === */
.form-group {
  margin-bottom: var(--sp-5);
}

.form-label {
  display: block;
  font-size: var(--text-tiny);
  font-weight: 600;
  color: var(--color-text-soft);
  margin-bottom: var(--sp-2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* === Badge === */
.badge {
  display: inline-flex;
  align-items: center;
  height: 24px;
  padding: 0 var(--sp-3);
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
}

.badge-primary { background: var(--color-primary-soft); color: var(--color-primary); }
.badge-success { background: #dcfce7; color: var(--color-success); }
.badge-warning { background: #fef3c7; color: var(--color-warning); }
.badge-error { background: #fce4e4; color: var(--color-error); }
.badge-info { background: #dbeafe; color: var(--color-info); }

/* === Phase Badges === */
.badge-phase-design { background: #ede9fe; color: var(--color-phase-design); }
.badge-phase-launch { background: #cffafe; color: var(--color-phase-launch); }
.badge-phase-kickoff { background: #d1fae5; color: var(--color-phase-kickoff); }
.badge-phase-coaching { background: #fef3c7; color: var(--color-phase-coaching); }
.badge-phase-present { background: #fce7f3; color: var(--color-phase-present); }
.badge-phase-review { background: #fce4e4; color: var(--color-phase-review); }
.badge-phase-track { background: #e0e7ff; color: var(--color-phase-track); }

/* === Table === */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: var(--color-surface-soft);
}

th {
  text-align: left;
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--text-tiny);
  font-weight: 600;
  color: var(--color-text-soft);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--color-border);
}

td {
  padding: var(--sp-3) var(--sp-4);
  font-size: var(--text-small);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-strong);
}

tr:last-child td {
  border-bottom: none;
}

tr:hover {
  background: var(--color-surface-soft);
}

/* === Progress Bar === */
.progress {
  height: 8px;
  background: var(--color-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  transition: width var(--transition-slow);
}

.progress-bar.success { background: var(--color-success); }
.progress-bar.warning { background: var(--color-warning); }
.progress-bar.accent { background: var(--color-accent); }

/* === Tab === */
.tabs {
  display: flex;
  gap: var(--sp-1);
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--sp-6);
}

.tab {
  padding: var(--sp-3) var(--sp-5);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition);
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
}

.tab:hover {
  color: var(--color-text-strong);
}

.tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(31, 42, 68, 0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--sp-6);
}

.modal-overlay.active {
  display: flex;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 640px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-6);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  font-size: var(--text-card);
}

.modal-body {
  padding: var(--sp-6);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--sp-3);
  padding: var(--sp-6);
  border-top: 1px solid var(--color-border);
}

/* === Toast === */
.toast-container {
  position: fixed;
  top: var(--sp-6);
  right: var(--sp-6);
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
}

.toast {
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-hover);
  padding: var(--sp-4) var(--sp-5);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  min-width: 300px;
  animation: slideIn 300ms ease;
}

.toast.success { border-left: 4px solid var(--color-success); }
.toast.error { border-left: 4px solid var(--color-error); }
.toast.warning { border-left: 4px solid var(--color-warning); }
.toast.info { border-left: 4px solid var(--color-info); }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* === Animations === */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

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

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* === Print === */
@media print {
  .no-print { display: none !important; }
  body { background: white; }
  .card { box-shadow: none; border: 1px solid #ddd; }
}