:root {
  color-scheme: dark;
  --color-bg: #080a12;
  --color-bg-soft: #101522;
  --color-surface: rgba(18, 24, 38, 0.86);
  --color-surface-strong: rgba(25, 33, 52, 0.96);
  --color-surface-hover: rgba(35, 45, 68, 0.94);
  --color-text: #f7f9ff;
  --color-muted: #a6b0c3;
  --color-primary: #7c5cff;
  --color-primary-hover: #9a82ff;
  --color-accent: #20d6a3;
  --color-warning: #ffbf47;
  --color-danger: #ff5f76;
  --color-border: rgba(255, 255, 255, 0.11);
  --color-border-strong: rgba(255, 255, 255, 0.22);
  --color-empty: rgba(124, 92, 255, 0.10);
  --shadow-sm: 0 12px 30px rgba(0, 0, 0, 0.22);
  --shadow-md: 0 24px 70px rgba(0, 0, 0, 0.36);
  --shadow-glow: 0 0 42px rgba(124, 92, 255, 0.22);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --space-1: 0.65rem;
  --space-2: 1rem;
  --space-3: 1.6rem;
  --space-4: 2.5rem;
  --font-body: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --transition-fast: 170ms cubic-bezier(0.2, 0, 0, 1);
  --transition-base: 260ms cubic-bezier(0.2, 0, 0, 1);
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(32, 214, 163, 0.16), transparent 34rem),
    radial-gradient(circle at top right, rgba(124, 92, 255, 0.22), transparent 30rem),
    linear-gradient(135deg, #080a12 0%, #111827 52%, #0b1020 100%);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.55;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 78%);
}

a {
  color: #b8a8ff;
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast), transform var(--transition-fast);
}

a:hover {
  color: #ffffff;
}

button,
input,
select,
textarea {
  font: inherit;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-primary), #4d9cff);
  color: #ffffff;
  cursor: pointer;
  font-weight: 800;
  letter-spacing: 0;
  line-height: 1.2;
  padding: 0.72rem 1.05rem;
  text-align: center;
  box-shadow: 0 12px 28px rgba(91, 116, 255, 0.28);
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    color var(--transition-fast),
    transform var(--transition-fast);
}

button:hover,
.button:hover {
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(91, 116, 255, 0.36);
}

button:active,
.button:active {
  transform: translateY(0);
}

button:disabled,
button[aria-disabled="true"],
.button[aria-disabled="true"],
.is-disabled {
  cursor: not-allowed;
  opacity: 0.58;
  transform: none;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 3px solid rgba(32, 214, 163, 0.34);
  outline-offset: 3px;
}

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

h1,
h2,
h3,
p {
  margin-block-start: 0;
}

h1,
h2,
h3 {
  color: var(--color-text);
  line-height: 1.1;
}

h1 {
  margin-block-end: var(--space-1);
  font-size: clamp(2.15rem, 4vw, 4rem);
  letter-spacing: 0;
}

h2 {
  margin-block-end: var(--space-1);
  font-size: 1.45rem;
}

h3 {
  margin-block-end: 0.375rem;
  font-size: 1.05rem;
}

p {
  margin-block-end: 0;
  color: var(--color-muted);
}

.container {
  width: min(100% - 2rem, 1180px);
  margin-inline: auto;
}

.skip-link {
  position: absolute;
  left: var(--space-2);
  top: var(--space-1);
  z-index: 20;
  border-radius: var(--radius-sm);
  background: var(--color-text);
  color: #080a12;
  padding: 0.5rem 0.75rem;
  transform: translateY(-150%);
  transition: transform var(--transition-fast);
}

.skip-link:focus {
  color: #080a12;
  transform: translateY(0);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--color-border);
  background: rgba(8, 10, 18, 0.78);
  box-shadow: 0 8px 34px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(18px);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  min-height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--color-text);
  font-size: 1.16rem;
  font-weight: 900;
}

.brand::before {
  content: "";
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 999px;
  background: var(--color-accent);
  box-shadow: 0 0 22px rgba(32, 214, 163, 0.82);
}

.nav-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: flex-end;
}

.nav-links a,
.link-button,
.nav-user {
  border-radius: 999px;
  padding: 0.55rem 0.8rem;
}

.nav-links a:hover,
.link-button:hover {
  background: rgba(255, 255, 255, 0.08);
}

.nav-user {
  color: var(--color-muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.nav-form {
  margin: 0;
}

.link-button {
  min-height: auto;
  border: 0;
  background: transparent;
  box-shadow: none;
  color: #b8a8ff;
  font-weight: 800;
}

.link-button:hover {
  color: #ffffff;
  transform: none;
  box-shadow: none;
}

.page {
  padding-block: var(--space-4);
  animation: pageIn 520ms ease both;
}

.intro,
.panel,
.auth-panel,
.card {
  position: relative;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, rgba(18, 24, 38, 0.94), rgba(15, 19, 31, 0.78));
  box-shadow: var(--shadow-sm);
  padding: var(--space-3);
  backdrop-filter: blur(18px);
}

.intro,
.panel {
  max-width: 780px;
}

.intro {
  overflow: hidden;
  min-height: 430px;
  padding: clamp(2rem, 7vw, 5rem);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.intro::after {
  content: "";
  position: absolute;
  right: 2rem;
  bottom: 2rem;
  width: min(36vw, 280px);
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  background:
    conic-gradient(from 140deg, var(--color-accent), var(--color-primary), #4d9cff, var(--color-accent));
  opacity: 0.28;
  filter: blur(0.2px);
}

.auth-panel {
  max-width: 560px;
  margin-inline: auto;
}

.stack {
  display: grid;
  gap: var(--space-2);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-2);
}

.button-secondary {
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: none;
  color: #d9d2ff;
}

.button-secondary:hover {
  border-color: var(--color-border-strong);
  background: rgba(255, 255, 255, 0.10);
  color: #ffffff;
  box-shadow: 0 14px 28px rgba(0, 0, 0, 0.22);
}

.button-danger {
  background: linear-gradient(135deg, var(--color-danger), #fb7185);
  box-shadow: 0 12px 26px rgba(255, 95, 118, 0.24);
}

.button-danger:hover {
  background: linear-gradient(135deg, #ff7488, #ff4d67);
}

.messages {
  display: grid;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
}

.message {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface-strong);
  color: var(--color-text);
  padding: var(--space-1) var(--space-2);
  box-shadow: var(--shadow-sm);
}

.message-success {
  border-color: rgba(32, 214, 163, 0.38);
  background: rgba(32, 214, 163, 0.12);
}

.message-warning {
  border-color: rgba(255, 191, 71, 0.42);
  background: rgba(255, 191, 71, 0.12);
}

.message-error {
  border-color: rgba(255, 95, 118, 0.38);
  background: rgba(255, 95, 118, 0.12);
}

.stacked-form {
  display: grid;
  gap: var(--space-2);
}

.form-field {
  display: grid;
  gap: 0.45rem;
}

.form-field label {
  color: var(--color-text);
  font-size: 0.92rem;
  font-weight: 800;
}

.form-field input,
.form-field select,
.form-field textarea {
  min-height: 48px;
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(5, 8, 15, 0.46);
  color: var(--color-text);
  padding: 0.72rem 0.85rem;
  transition:
    background-color var(--transition-fast),
    border-color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
}

.form-field textarea {
  min-height: 9rem;
  resize: vertical;
}

.form-field input:hover,
.form-field select:hover,
.form-field textarea:hover {
  border-color: var(--color-border-strong);
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  background: rgba(5, 8, 15, 0.68);
  box-shadow: 0 0 0 4px rgba(124, 92, 255, 0.16);
}

.form-field input:disabled,
.form-field select:disabled,
.form-field textarea:disabled {
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-muted);
  cursor: not-allowed;
}

.form-field input[aria-invalid="true"],
.form-field select[aria-invalid="true"],
.form-field textarea[aria-invalid="true"] {
  border-color: var(--color-danger);
}

.form-field .helptext {
  color: var(--color-muted);
  font-size: 0.875rem;
}

.errorlist,
.form-errors .errorlist {
  margin: 0;
  padding-left: 1.25rem;
  color: #ff98a7;
}

.form-errors {
  border: 1px solid rgba(255, 95, 118, 0.36);
  border-radius: var(--radius-md);
  background: rgba(255, 95, 118, 0.10);
  padding: var(--space-1) var(--space-2);
}

.auth-note {
  margin-top: var(--space-2);
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.page-header > div:first-child {
  max-width: 720px;
}

.full-panel {
  max-width: none;
}

.filter-form {
  display: grid;
  align-items: end;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.compact-filter-form {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 13rem), 1fr));
}

.filter-actions {
  display: flex;
  gap: var(--space-1);
}

.goal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 19rem), 1fr));
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 10.5rem), 1fr));
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.summary-card {
  display: grid;
  gap: 0.55rem;
  min-height: 136px;
  overflow: hidden;
  isolation: isolate;
}

.summary-card::after {
  content: "";
  position: absolute;
  right: -2.4rem;
  bottom: -2.4rem;
  z-index: -1;
  width: 7rem;
  aspect-ratio: 1;
  border-radius: 999px;
  background: rgba(32, 214, 163, 0.16);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.summary-card:hover::after {
  opacity: 0.95;
  transform: scale(1.22);
}

.summary-card strong {
  color: var(--color-text);
  font-size: 2.5rem;
  line-height: 1;
}

.dashboard-sections {
  margin-top: var(--space-2);
}

.dashboard-filter-panel {
  margin-bottom: var(--space-2);
}

.card,
.panel,
.session-item,
.note-item,
.milestone-item {
  animation: cardIn 540ms ease both;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base),
    background-color var(--transition-base);
}

.card:hover,
.session-item:hover,
.note-item:hover,
.milestone-item:hover {
  border-color: var(--color-border-strong);
  background: var(--color-surface-hover);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.goal-card {
  display: grid;
  align-content: start;
  gap: var(--space-1);
  min-height: 270px;
}

.goal-card h2 {
  margin-bottom: 0;
  font-size: 1.35rem;
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.card-meta span,
.goal-category {
  display: inline-flex;
  align-items: center;
  min-height: 1.8rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.055);
  padding: 0.25rem 0.65rem;
}

.goal-category,
.muted {
  color: var(--color-muted);
  font-size: 0.94rem;
  font-weight: 700;
}

.progress-summary {
  display: grid;
  align-items: center;
  grid-template-columns: 1fr auto;
  gap: var(--space-1);
  margin-top: var(--space-1);
}

.progress-large {
  grid-template-columns: 1fr auto;
  margin-block: var(--space-2);
}

.progress-large strong {
  font-size: 1.45rem;
}

.progress-bar {
  overflow: hidden;
  height: 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 8px rgba(0, 0, 0, 0.28);
}

.progress-bar span {
  position: relative;
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-accent), #77f7cf, var(--color-primary));
  box-shadow: 0 0 22px rgba(32, 214, 163, 0.42);
  transition: width 680ms cubic-bezier(0.2, 0, 0, 1);
}

.progress-bar span::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.45), transparent);
  animation: shimmer 2.2s ease-in-out infinite;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
}

.detail-layout {
  display: grid;
  gap: var(--space-2);
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.item-list {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-2) 0 0;
  padding-left: 1.25rem;
}

.item-list li::marker {
  color: var(--color-accent);
}

.milestone-list,
.session-list,
.note-list {
  display: grid;
  gap: var(--space-1);
  margin: var(--space-2) 0 0;
  padding: 0;
  list-style: none;
}

.milestone-item,
.session-item,
.note-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-2);
  align-items: start;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.045);
  padding: var(--space-2);
}

.milestone-item.is-complete {
  border-color: rgba(32, 214, 163, 0.42);
  background: rgba(32, 214, 163, 0.10);
}

.milestone-main {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: var(--space-2);
  align-items: start;
}

.milestone-main h3,
.session-item h2,
.session-item h3,
.note-item h2,
.note-item h3 {
  margin-bottom: 0.25rem;
}

.milestone-toggle-form,
.session-actions form {
  margin: 0;
}

.milestone-check {
  min-width: 8.5rem;
  background: linear-gradient(135deg, var(--color-accent), #13b889);
  box-shadow: 0 12px 28px rgba(32, 214, 163, 0.24);
}

.milestone-check:hover {
  background: linear-gradient(135deg, #42e7ba, #16c997);
}

.milestone-item.is-complete .milestone-check {
  color: #062018;
  background: linear-gradient(135deg, #b9ffe9, var(--color-accent));
}

.milestone-actions,
.session-actions,
.note-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  justify-content: flex-end;
}

.milestone-actions .button,
.session-actions .button,
.session-actions button,
.note-actions .button {
  min-height: 40px;
  padding-inline: 0.75rem;
}

.milestone-error,
.session-error {
  margin-top: var(--space-2);
}

.eyebrow {
  margin: 0 0 var(--space-1);
  color: var(--color-accent);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.empty-state,
.loading-state,
.error-state {
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-empty);
  color: var(--color-muted);
  padding: var(--space-2);
}

.loading-state {
  color: var(--color-text);
}

.error-state {
  border-color: rgba(255, 95, 118, 0.42);
  background: rgba(255, 95, 118, 0.10);
  color: #ff98a7;
}

.is-loading {
  position: relative;
  pointer-events: none;
}

.is-loading::after {
  content: "";
  width: 1rem;
  height: 1rem;
  margin-left: 0.625rem;
  border: 2px solid rgba(255, 255, 255, 0.48);
  border-top-color: #ffffff;
  border-radius: 999px;
  animation: spin 700ms linear infinite;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shimmer {
  0% {
    transform: translateX(-100%);
  }
  58%,
  100% {
    transform: translateX(100%);
  }
}

@keyframes spin {
  to {
    transform: rotate(1turn);
  }
}

@media (max-width: 720px) {
  .container {
    width: min(100% - 1rem, 1180px);
  }

  .site-nav {
    align-items: stretch;
    flex-direction: column;
    padding-block: var(--space-2);
  }

  .nav-links {
    align-items: stretch;
    justify-content: flex-start;
  }

  .nav-links a,
  .link-button,
  .nav-user {
    min-height: 44px;
  }

  .page {
    padding-block: var(--space-2);
  }

  .intro,
  .panel,
  .auth-panel,
  .card {
    border-radius: var(--radius-md);
    padding: var(--space-2);
  }

  .intro {
    min-height: 360px;
  }

  .intro::after {
    right: -3rem;
    bottom: -3rem;
    width: 13rem;
  }

  .actions,
  .actions .button {
    width: 100%;
  }

  .page-header,
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .filter-form,
  .compact-filter-form,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .filter-actions {
    flex-direction: column;
  }

  .filter-actions .button,
  .filter-actions button {
    width: 100%;
  }

  .progress-summary,
  .progress-large {
    grid-template-columns: 1fr;
  }

  .milestone-item,
  .milestone-main,
  .session-item,
  .note-item {
    grid-template-columns: 1fr;
  }

  .milestone-actions,
  .milestone-actions .button,
  .milestone-check,
  .session-actions,
  .session-actions .button,
  .session-actions button,
  .session-actions form,
  .note-actions,
  .note-actions .button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }
}