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Theme for the website replaced to UUI DS with implementation of dark … #174

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333 changes: 204 additions & 129 deletions client/src/App.vue
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370 changes: 370 additions & 0 deletions client/src/assets/design-tokens.css
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/* ============================================================
EPAM UUI Design System — Design Tokens
Source: claude.ai/design project 7097e02d-a822-4704-8af9-4591f841d406
Two themes: light (default) and dark ([data-theme="dark"] on <html>)
============================================================ */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Source+Sans+3:wght@400;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
/* ─────────────────────────────────────
PRIMITIVE PALETTE
───────────────────────────────────── */

/* Neutral (night) */
--uui-white: #ffffff;
--uui-night-50: #fafafc;
--uui-night-100: #f5f6fa;
--uui-night-200: #ebedf5;
--uui-night-300: #e1e3eb;
--uui-night-400: #ced0db;
--uui-night-500: #acafbf;
--uui-night-600: #6c6f80;
--uui-night-700: #474a59;
--uui-night-800: #303240;
--uui-night-900: #1d1e26;

/* Blue (primary) */
--uui-blue-10: #eff6ff;
--uui-blue-20: #cee3fc;
--uui-blue-30: #a1c9f4;
--uui-blue-50: #2b97f0;
--uui-blue-60: #0c8ce9;
--uui-blue-70: #0a68f1;
--uui-blue-80: #0a5dc2;
--uui-blue-90: #08489a;

/* Violet (accent) */
--uui-violet-10: #f0ecff;
--uui-violet-20: #d9d1ff;
--uui-violet-30: #bdb0ff;
--uui-violet-50: #8871ff;
--uui-violet-60: #7b61ff;
--uui-violet-70: #614dc9;
--uui-violet-90: #3f3185;

/* Cyan (info) */
--uui-cyan-10: #e1f4fb;
--uui-cyan-30: #80d4ee;
--uui-cyan-60: #009ecc;
--uui-cyan-70: #0079a1;

/* Green (success) */
--uui-green-10: #edf6de;
--uui-green-30: #b6db8a;
--uui-green-60: #67a300;
--uui-green-70: #528500;

/* Amber (warning) */
--uui-amber-10: #fff3de;
--uui-amber-30: #ffd789;
--uui-amber-60: #ffa000;
--uui-amber-70: #cc8000;

/* Fire (error/critical) */
--uui-fire-10: #fceeec;
--uui-fire-30: #ffb3ac;
--uui-fire-50: #ff4242;
--uui-fire-60: #e5452d;
--uui-fire-70: #c42e12;

/* ─────────────────────────────────────
SEMANTIC TOKENS — SURFACES
───────────────────────────────────── */
--uui-surface-app: var(--uui-night-100);
--uui-surface-main: var(--uui-white);
--uui-surface-higher: var(--uui-white);
--uui-surface-lowest: var(--uui-night-50);
--uui-surface-sunken: var(--uui-night-100);
--uui-surface-contrast: var(--uui-night-800);
--uui-overlay: rgba(29, 30, 38, 0.45);

/* ─────────────────────────────────────
SEMANTIC TOKENS — TEXT
───────────────────────────────────── */
--uui-text-primary: var(--uui-night-800);
--uui-text-secondary: var(--uui-night-600);
--uui-text-tertiary: var(--uui-night-500);
--uui-text-disabled: var(--uui-night-400);
--uui-text-brand: var(--uui-blue-70);
--uui-text-contrast: var(--uui-white);

/* ─────────────────────────────────────
SEMANTIC TOKENS — ICONS
───────────────────────────────────── */
--uui-icon: var(--uui-night-600);
--uui-icon-active: var(--uui-night-800);
--uui-icon-disabled: var(--uui-night-400);
--uui-icon-contrast: var(--uui-white);

/* ─────────────────────────────────────
SEMANTIC TOKENS — CONTROLS
───────────────────────────────────── */
--uui-control-bg: var(--uui-white);
--uui-control-bg-disabled: var(--uui-night-100);
--uui-control-border: var(--uui-night-400);
--uui-control-border-hover: var(--uui-night-500);
--uui-control-placeholder: var(--uui-night-500);
--uui-control-text: var(--uui-night-800);

/* ─────────────────────────────────────
SEMANTIC TOKENS — LINKS
───────────────────────────────────── */
--uui-link: var(--uui-blue-70);
--uui-link-hover: var(--uui-blue-80);
--uui-link-visited: var(--uui-violet-70);

/* ─────────────────────────────────────
SEMANTIC TOKENS — BORDERS
───────────────────────────────────── */
--uui-border: var(--uui-night-300);
--uui-border-subtle: var(--uui-night-200);
--uui-border-strong: var(--uui-night-400);
--uui-divider: var(--uui-night-200);

/* ─────────────────────────────────────
SEMANTIC TOKENS — BRAND / PRIMARY
───────────────────────────────────── */
--uui-primary: var(--uui-blue-60);
--uui-primary-hover: var(--uui-blue-70);
--uui-primary-active: var(--uui-blue-80);
--uui-primary-subtle: var(--uui-blue-10);

/* Accent */
--uui-accent: var(--uui-violet-60);
--uui-accent-hover: var(--uui-violet-70);
--uui-accent-subtle: var(--uui-violet-10);

/* ─────────────────────────────────────
SEMANTIC TOKENS — STATUS
───────────────────────────────────── */
--uui-info: var(--uui-cyan-60);
--uui-info-subtle: var(--uui-cyan-10);
--uui-success: var(--uui-green-60);
--uui-success-subtle: var(--uui-green-10);
--uui-warning: var(--uui-amber-60);
--uui-warning-subtle: var(--uui-amber-10);
--uui-error: var(--uui-fire-60);
--uui-error-hover: var(--uui-fire-70);
--uui-error-subtle: var(--uui-fire-10);

/* Focus ring */
--uui-focus: var(--uui-blue-60);

/* ─────────────────────────────────────
TYPOGRAPHY
───────────────────────────────────── */
--uui-font: "Source Sans 3", "Source Sans Pro", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
--uui-font-ui: "Inter", "Source Sans 3", system-ui, sans-serif;
--uui-font-mono: "Roboto Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

--uui-fw-regular: 400;
--uui-fw-semibold: 600;
--uui-fw-bold: 700;

--uui-display-size: 48px; --uui-display-lh: 60px; --uui-display-fw: 700;
--uui-h1-size: 36px; --uui-h1-lh: 48px; --uui-h1-fw: 700;
--uui-h2-size: 30px; --uui-h2-lh: 42px; --uui-h2-fw: 700;
--uui-h3-size: 24px; --uui-h3-lh: 30px; --uui-h3-fw: 600;
--uui-h4-size: 18px; --uui-h4-lh: 24px; --uui-h4-fw: 600;
--uui-h5-size: 16px; --uui-h5-lh: 24px; --uui-h5-fw: 600;

--uui-text-l-size: 18px; --uui-text-l-lh: 24px;
--uui-text-m-size: 16px; --uui-text-m-lh: 24px;
--uui-text-s-size: 14px; --uui-text-s-lh: 18px;
--uui-text-xs-size: 12px; --uui-text-xs-lh: 18px;

--uui-overline-size: 12px; --uui-overline-lh: 18px; --uui-overline-tracking: 0.06em;
--uui-mono-size: 14px; --uui-mono-lh: 24px;

/* ─────────────────────────────────────
SPACING (6px grid)
───────────────────────────────────── */
--uui-space-0: 0;
--uui-space-3: 3px;
--uui-space-6: 6px;
--uui-space-12: 12px;
--uui-space-18: 18px;
--uui-space-24: 24px;
--uui-space-30: 30px;
--uui-space-36: 36px;
--uui-space-48: 48px;
--uui-space-60: 60px;
--uui-space-72: 72px;
--uui-space-90: 90px;
--uui-space-120: 120px;

--uui-size-24: 24px;
--uui-size-30: 30px;
--uui-size-36: 36px;
--uui-size-42: 42px;
--uui-size-48: 48px;

--uui-page-gutter: 24px;
--uui-content-max: 1280px;

/* ─────────────────────────────────────
BORDER RADIUS
───────────────────────────────────── */
--uui-radius-0: 0;
--uui-radius-2: 2px;
--uui-radius-3: 3px;
--uui-radius-6: 6px;
--uui-radius-12: 12px;
--uui-radius-18: 18px;
--uui-radius-24: 24px;
--uui-radius-full: 9999px;

/* ─────────────────────────────────────
ELEVATION / SHADOWS
───────────────────────────────────── */
--uui-shadow-100: 0 1px 3px rgba(29, 30, 38, 0.10);
--uui-shadow-200: 0 3px 6px rgba(29, 30, 38, 0.10), 0 1px 2px rgba(29, 30, 38, 0.06);
--uui-shadow-300: 0 6px 18px rgba(29, 30, 38, 0.12), 0 2px 4px rgba(29, 30, 38, 0.06);
--uui-shadow-400: 0 12px 36px rgba(29, 30, 38, 0.18), 0 3px 8px rgba(29, 30, 38, 0.08);
--uui-shadow-focus: 0 0 0 3px rgba(12, 140, 233, 0.30);

/* Z-index scale */
--uui-z-base: 0;
--uui-z-sticky: 100;
--uui-z-dropdown: 400;
--uui-z-overlay: 900;
--uui-z-modal: 1000;
--uui-z-tooltip: 1500;
--uui-z-toast: 2000;
}

/* ============================================================
LIGHT / DARK COLOR-SCHEME HINT
Tells the browser to style native UI (scrollbars, form controls)
to match the active theme.
============================================================ */
:root {
color-scheme: light dark;
}

:root[data-theme="light"] {
color-scheme: light;
}

:root[data-theme="dark"] {
color-scheme: dark;
}

/* ============================================================
DARK THEME — semantic token overrides
Two triggers (DRY note: kept intentionally explicit):
1. OS/browser prefers dark AND the user hasn't forced light
2. User has manually forced dark via [data-theme="dark"]
============================================================ */

/* ── Trigger 1: OS / browser dark preference ── */
@media (prefers-color-scheme: dark) {
:root:not([data-theme="light"]) {
--uui-surface-app: #14151c;
--uui-surface-main: var(--uui-night-900);
--uui-surface-higher: var(--uui-night-800);
--uui-surface-lowest: #0f1015;
--uui-surface-sunken: #14151c;
--uui-surface-contrast: var(--uui-white);
--uui-overlay: rgba(0, 0, 0, 0.65);

--uui-text-primary: var(--uui-white);
--uui-text-secondary: var(--uui-night-400);
--uui-text-tertiary: var(--uui-night-500);
--uui-text-disabled: var(--uui-night-600);
--uui-text-brand: var(--uui-blue-50);

--uui-icon: var(--uui-night-400);
--uui-icon-active: var(--uui-white);
--uui-icon-disabled: var(--uui-night-600);

--uui-control-bg: var(--uui-night-800);
--uui-control-bg-disabled: var(--uui-night-900);
--uui-control-border: var(--uui-night-600);
--uui-control-border-hover: var(--uui-night-500);
--uui-control-placeholder: var(--uui-night-500);
--uui-control-text: var(--uui-white);

--uui-link: var(--uui-blue-50);
--uui-link-hover: var(--uui-blue-30);

--uui-border: var(--uui-night-700);
--uui-border-subtle: var(--uui-night-800);
--uui-border-strong: var(--uui-night-600);
--uui-divider: var(--uui-night-700);

--uui-primary-subtle: rgba(12, 140, 233, 0.18);
--uui-accent-subtle: rgba(123, 97, 255, 0.18);

--uui-info-subtle: rgba(0, 158, 204, 0.18);
--uui-success-subtle: rgba(103, 163, 0, 0.18);
--uui-warning-subtle: rgba(255, 160, 0, 0.18);
--uui-error-subtle: rgba(229, 69, 45, 0.18);

--uui-info: var(--uui-cyan-30);
--uui-success: var(--uui-green-30);
--uui-warning: var(--uui-amber-30);
--uui-error: var(--uui-fire-30);

--uui-shadow-100: 0 1px 3px rgba(0, 0, 0, 0.40);
--uui-shadow-200: 0 3px 6px rgba(0, 0, 0, 0.40), 0 1px 2px rgba(0, 0, 0, 0.25);
--uui-shadow-300: 0 6px 18px rgba(0, 0, 0, 0.45), 0 2px 4px rgba(0, 0, 0, 0.25);
--uui-shadow-400: 0 12px 36px rgba(0, 0, 0, 0.60), 0 3px 8px rgba(0, 0, 0, 0.35);
}
}

/* ── Trigger 2: manually forced dark (overrides system light) ── */
:root[data-theme="dark"] {
--uui-surface-app: #14151c;
--uui-surface-main: var(--uui-night-900);
--uui-surface-higher: var(--uui-night-800);
--uui-surface-lowest: #0f1015;
--uui-surface-sunken: #14151c;
--uui-surface-contrast: var(--uui-white);
--uui-overlay: rgba(0, 0, 0, 0.65);

--uui-text-primary: var(--uui-white);
--uui-text-secondary: var(--uui-night-400);
--uui-text-tertiary: var(--uui-night-500);
--uui-text-disabled: var(--uui-night-600);
--uui-text-brand: var(--uui-blue-50);

--uui-icon: var(--uui-night-400);
--uui-icon-active: var(--uui-white);
--uui-icon-disabled: var(--uui-night-600);

--uui-control-bg: var(--uui-night-800);
--uui-control-bg-disabled: var(--uui-night-900);
--uui-control-border: var(--uui-night-600);
--uui-control-border-hover: var(--uui-night-500);
--uui-control-placeholder: var(--uui-night-500);
--uui-control-text: var(--uui-white);

--uui-link: var(--uui-blue-50);
--uui-link-hover: var(--uui-blue-30);

--uui-border: var(--uui-night-700);
--uui-border-subtle: var(--uui-night-800);
--uui-border-strong: var(--uui-night-600);
--uui-divider: var(--uui-night-700);

--uui-primary-subtle: rgba(12, 140, 233, 0.18);
--uui-accent-subtle: rgba(123, 97, 255, 0.18);

--uui-info-subtle: rgba(0, 158, 204, 0.18);
--uui-success-subtle: rgba(103, 163, 0, 0.18);
--uui-warning-subtle: rgba(255, 160, 0, 0.18);
--uui-error-subtle: rgba(229, 69, 45, 0.18);

--uui-info: var(--uui-cyan-30);
--uui-success: var(--uui-green-30);
--uui-warning: var(--uui-amber-30);
--uui-error: var(--uui-fire-30);

--uui-shadow-100: 0 1px 3px rgba(0, 0, 0, 0.40);
--uui-shadow-200: 0 3px 6px rgba(0, 0, 0, 0.40), 0 1px 2px rgba(0, 0, 0, 0.25);
--uui-shadow-300: 0 6px 18px rgba(0, 0, 0, 0.45), 0 2px 4px rgba(0, 0, 0, 0.25);
--uui-shadow-400: 0 12px 36px rgba(0, 0, 0, 0.60), 0 3px 8px rgba(0, 0, 0, 0.35);
}
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