:root {
  color-scheme: dark;
  --color-bg: #0b0b0f;
  --color-surface: #18181f;
  --color-surface-2: #1f1f28;
  --color-border: #2b2b38;
  --color-text: #f4f4f5;
  --color-text-muted: #adadb6;
  --color-text-soft: #81818b;
  --color-primary: #6c5cff;
  --color-primary-hover: #7c6dff;
  --color-primary-soft: rgba(108, 92, 255, .16);
  --color-primary-border: rgba(108, 92, 255, .35);
  --color-success: #b8ff3d;
  --color-warning: #ffb454;
  --color-danger: #ff7088;
  --status-green: #b8ff3d;
  --status-yellow: #ffb454;
  --status-red: #ff7088;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-weight-body: 400;
  --font-weight-ui: 600;
  --font-weight-display: 700;
  --font-size-ui: 14px;
  --font-size-small: 13px;
  --radius-button: 14px;
  --radius-card: 18px;
  --shadow-card: 0 18px 40px rgba(0, 0, 0, .22);
  --shadow-primary: 0 12px 30px rgba(108, 92, 255, .24);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-width: 320px; background: var(--color-bg); }

body {
  min-width: 320px;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: var(--font-weight-body);
  line-height: 1.5;
}

button, input { font-family: var(--font-sans); }
.ambient { position: fixed; inset: 0; pointer-events: none; background: radial-gradient(circle at 75% -10%, rgba(108, 92, 255, .18), transparent 34%); }

.app {
  position: relative;
  width: min(100%, 720px);
  min-height: 100dvh;
  margin: auto;
  padding: 24px 14px calc(40px + env(safe-area-inset-bottom));
}

.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 40px; color: var(--color-text); font-size: 14px; font-weight: var(--font-weight-ui); letter-spacing: .04em; }
.brand strong { font-weight: var(--font-weight-display); }
.back-link { display: inline-flex; align-items: center; justify-content: center; gap: 9px; min-height: 44px; padding: 0 5px; color: #fff; font-size: 14px; font-weight: 700; line-height: 1; letter-spacing: 0; text-decoration: none; }
.button-arrow { color: #fff; font-size: 26px; font-weight: 700; line-height: 1; }
.back-link:hover, .back-link:focus-visible { color: #fff; opacity: .72; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, .tracker-name { font-family: var(--font-sans); font-weight: var(--font-weight-display); }
h1 { margin-bottom: 0; font-size: clamp(36px, 6vw, 54px); line-height: 1.04; letter-spacing: -.04em; }
h2 { font-size: 24px; line-height: 1.15; letter-spacing: -.025em; }
.eyebrow { margin: 0 0 8px; color: #a99fff; font-size: 12px; font-weight: var(--font-weight-ui); letter-spacing: .12em; text-transform: uppercase; }
.intro { margin-bottom: 28px; }
.lead { margin: 16px 0 0; color: var(--color-text-muted); font-size: clamp(16px, 2vw, 18px); line-height: 1.55; }

.card { border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-surface); box-shadow: var(--shadow-card); }
.access-card, .calendar-card, .tracker-header, .cta-card { padding: 18px; }
.access-card.is-collapsed .mode-switch, .access-card.is-collapsed #tracker-form { display: none; }
.access-collapsed { display: flex; align-items: center; width: 100%; min-height: 38px; padding: 0; border: 0; background: transparent; color: #c9c4ff; font-size: var(--font-size-ui); font-weight: var(--font-weight-ui); text-align: left; cursor: pointer; }
.access-collapsed:hover { color: #fff; }

.mode-switch { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-bottom: 18px; padding: 5px; border: 1px solid var(--color-border); border-radius: 14px; background: var(--color-surface-2); }
.mode-button { min-height: 40px; padding: 0 8px; border: 0; border-radius: 10px; background: transparent; color: var(--color-text-muted); font-size: var(--font-size-ui); font-weight: var(--font-weight-ui); cursor: pointer; transition: .14s ease-out; }
.mode-button.is-active { background: var(--color-primary); color: #fff; box-shadow: 0 6px 16px rgba(108, 92, 255, .28); }
.mode-button:disabled, .button:disabled { opacity: .5; cursor: not-allowed; }
.access-description { margin: 0; color: var(--color-text-muted); font-size: var(--font-size-ui); }
form { display: grid; gap: 13px; }

.field, .extend-field { display: grid; gap: 7px; color: var(--color-text-muted); font-size: var(--font-size-ui); font-weight: var(--font-weight-ui); }
.field input, .extend-field input { width: 100%; min-height: 50px; padding: 0 14px; border: 1px solid var(--color-border); border-radius: 12px; outline: 0; background: var(--color-surface-2); color: var(--color-text); font-size: var(--font-size-ui); font-weight: var(--font-weight-body); transition: border-color .14s ease, box-shadow .14s ease; }
.field input:focus, .extend-field input:focus { border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-soft); }

.consent-field { display: grid; gap: 5px; font-size: var(--font-size-ui); }
.consent-choice { display: flex; align-items: flex-start; gap: 10px; color: var(--color-text); cursor: pointer; }
.consent-choice input { flex: 0 0 18px; width: 18px; height: 18px; margin: 2px 0 0; accent-color: var(--color-primary); cursor: pointer; }
.consent-choice input:focus-visible { outline: 3px solid rgba(108, 92, 255, .48); outline-offset: 3px; }
.consent-details { width: fit-content; margin-left: 28px; color: #c9c4ff; font-size: var(--font-size-small); text-decoration: underline; text-underline-offset: 3px; }
.consent-details:hover, .consent-details:focus-visible { color: #fff; }

.button { display: inline-flex; align-items: center; justify-content: center; min-height: 52px; padding: 0 20px; border: 1px solid transparent; border-radius: var(--radius-button); font-size: var(--font-size-ui); font-weight: var(--font-weight-ui); cursor: pointer; transition: .14s ease-out; }
.button.primary { width: 100%; background: var(--color-primary); color: #fff; box-shadow: var(--shadow-primary); }
.button.primary:hover { background: var(--color-primary-hover); transform: translateY(-1px); }
.form-message, .extend-message { min-height: 0; margin: 0; color: var(--color-text-muted); font-size: var(--font-size-small); }
.form-message.is-error, .extend-message.is-error { color: #ff9aab; }
.form-message:not(:empty) { margin-top: 2px; }

.tracker-screen { margin-top: 22px; }
.site-footer { display: flex; flex-wrap: wrap; gap: 4px 7px; margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--color-border); color: var(--color-text-soft); font-size: 12px; line-height: 1.45; }
.site-footer a { color: var(--color-text-muted); text-underline-offset: 3px; }
.site-footer a:hover, .site-footer a:focus-visible { color: var(--color-text); }
.tracker-header { margin-bottom: 16px; }
.cta-card { margin-bottom: 16px; border-color: var(--color-primary-border); background: linear-gradient(135deg, var(--color-surface), #1d1b2b); }
.cta-card h3 { margin: 0; font-size: 19px; font-weight: var(--font-weight-display); line-height: 1.2; letter-spacing: -.02em; }
.cta-card p { margin: 10px 0 0; color: var(--color-text-muted); font-size: var(--font-size-ui); }
.cta-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.cta-button { min-height: 40px; padding: 0 14px; border-radius: 11px; font-size: var(--font-size-ui); font-weight: var(--font-weight-ui); cursor: pointer; }
.cta-button.primary { border: 1px solid var(--color-primary-border); background: var(--color-primary-soft); color: #ddd9ff; }
.cta-button.primary:hover { background: rgba(108, 92, 255, .28); }
.cta-button.secondary { border: 1px solid var(--color-border); background: transparent; color: var(--color-text-muted); }
.cta-button.secondary:hover { color: var(--color-text); border-color: #535363; }
.cta-button:disabled { opacity: .55; cursor: wait; }
.tracker-header .eyebrow { margin-bottom: 5px; }
.tracker-name { margin: 0; font-size: 30px; line-height: 1.1; }
.tracker-goal { margin: 8px 0 0; color: var(--color-text-muted); font-size: 15px; }
.progress-summary { margin-top: 18px; }
.progress-value { margin: 0; color: var(--color-text); font-size: 16px; }
.progress-value strong { font-size: 22px; font-weight: var(--font-weight-display); letter-spacing: -.03em; }
.compact-stats { display: flex; flex-wrap: wrap; gap: 6px 10px; margin: 8px 0 0; color: #d1d1dc; font-size: var(--font-size-small); }
.compact-stats span { display: inline-flex; align-items: center; gap: 4px; }
.status-cube { width: 10px; height: 10px; border-radius: 3px; background: #3d3d51; }
.status-cube.green { background: var(--status-green); }
.status-cube.yellow { background: var(--status-yellow); }
.status-cube.red { background: var(--status-red); }
.remaining-inline { color: #f0f0f5; }

.tracker-actions { margin-top: 16px; }
.tracker-action-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; }
.extend-toggle, .help-toggle { min-height: 34px; padding: 0; border: 0; background: transparent; color: #c9c4ff; font-size: var(--font-size-ui); font-weight: var(--font-weight-ui); cursor: pointer; }
.extend-toggle:hover, .help-toggle:hover { color: #fff; }
.extend-form { grid-template-columns: minmax(0, 1fr) auto; gap: 8px; margin-top: 10px; padding: 12px; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-surface-2); }
.extend-field input { min-height: 40px; padding: 0 10px; }
.extend-submit { align-self: end; min-height: 40px; padding: 0 13px; border: 1px solid var(--color-primary-border); border-radius: 10px; background: var(--color-primary-soft); color: #d5d1ff; font-size: var(--font-size-ui); font-weight: var(--font-weight-ui); cursor: pointer; }
.extend-submit:disabled { opacity: .5; cursor: wait; }
.extend-message { grid-column: 1 / -1; }
.help-panel { margin-top: 10px; padding: 12px; border: 1px solid var(--color-border); border-radius: 12px; background: var(--color-surface-2); color: #d1d1dc; font-size: var(--font-size-small); line-height: 1.5; }
.help-panel p { margin: 0; }
.help-panel p + p { margin-top: 10px; }

.month + .month { margin-top: 28px; padding-top: 26px; border-top: 1px solid var(--color-border); }
.month-title { margin: 0 0 14px; font-size: 21px; font-weight: var(--font-weight-display); line-height: 1.2; letter-spacing: -.02em; }
.weekdays { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 5px; margin-bottom: 6px; color: #b5b5c2; font-size: 11px; font-weight: var(--font-weight-ui); text-align: center; }
.days { display: grid; grid-template-columns: repeat(7, minmax(0, 1fr)); gap: 5px; }
.day-placeholder { min-height: 42px; }
.day { position: relative; display: grid; min-width: 0; min-height: 42px; place-items: center; padding: 0; border: 1px solid #5a5a70; border-radius: 11px; outline: 0; background: #363647; color: #fff; font-size: 13px; font-weight: var(--font-weight-ui); cursor: pointer; text-shadow: 0 1px 2px rgba(0, 0, 0, .32); transition: .14s ease-out; }
.day:hover:not(:disabled) { border-color: var(--color-primary-border); background: #404054; transform: translateY(-1px); }
.day:focus-visible, .button:focus-visible, .mode-button:focus-visible, .extend-toggle:focus-visible, .help-toggle:focus-visible, .extend-submit:focus-visible, .cta-button:focus-visible { outline: 3px solid rgba(108, 92, 255, .48); outline-offset: 3px; }
.day[data-status="green"] { border-color: transparent; background: var(--status-green); color: #192600; text-shadow: none; }
.day[data-status="yellow"] { border-color: transparent; background: var(--status-yellow); color: #2a1905; text-shadow: none; }
.day[data-status="red"] { border-color: transparent; background: var(--status-red); color: #fff; text-shadow: none; }
.day:disabled { opacity: .5; cursor: not-allowed; }
.day[data-future="true"] { border-color: #3d3d4d; background: #202029; color: #777786; opacity: .48; text-shadow: none; }
.day[data-today="true"]:not([data-status]) { box-shadow: inset 0 0 0 2px #b0a9ff; }
.day:disabled::after { position: absolute; right: 5px; bottom: 4px; width: 4px; height: 4px; border-radius: 50%; background: #babaca; content: ""; }

@media (min-width: 600px) {
  .app { padding: 40px 24px 56px; }
  .access-card, .calendar-card, .tracker-header, .cta-card { padding: 20px; }
  .day { min-height: 54px; font-size: 14px; }
  .day-placeholder { min-height: 54px; }
}

@media (max-width: 420px) {
  .app { padding-right: 12px; padding-left: 12px; }
  .brand { margin-bottom: 28px; }
  .back-link { transform: translateY(-2px); }
  .lead { font-size: 16px; }
  .intro { margin-bottom: 22px; }
  .access-card, .calendar-card, .tracker-header, .cta-card { padding: 16px; }
  .mode-button { font-size: var(--font-size-small); }
  .days { gap: 4px; }
  .weekdays { gap: 4px; }
  .day { min-height: 40px; border-radius: 10px; }
  .day-placeholder { min-height: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* Единый ритм и выравнивание ссылки «Назад». */
.app { padding-top: 24px; }
.brand { margin-bottom: 28px; }
.back-link .button-arrow { transform: translateY(-1px); }

@media (max-width: 599px) {
  .app { padding-top: 20px; }
  .brand { margin-bottom: 24px; }
  .back-link { transform: none; }
  .back-link .button-arrow { transform: translateY(-2px); }
}