/* ==========================================================================
   CodeMinistry — style.css
   Phase 2 design tokens. No framework, no build step.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Theme Tokens)
   -------------------------------------------------------------------------- */
:root,
[data-theme="dark"] {
    --bg: #0A0E1A;
    --text: #d0d4dc;
    --text-muted: #8b8fa8;
    --trace-resting: #3a5070;
    --trace-pulse: #d0d4dc;
    --focus-ring: #5b8def;
}

[data-theme="light"] {
    --bg: #F5F6F8;
    --text: #0A0E1A;
    --text-muted: #5d6470;
    --trace-resting: #A8B0BE;
    --trace-pulse: #0A0E1A;
    --focus-ring: #2563eb;
}

/* --------------------------------------------------------------------------
   2. Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    color-scheme: light dark;
    -webkit-text-size-adjust: 100%;
}

body {
    display: grid;
    place-items: center;
    min-height: 100dvh;
    margin: 0;
    background-color: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 200ms ease-out, color 200ms ease-out;
}

/* --------------------------------------------------------------------------
   3. Page-Scale Trace Overlay
   -------------------------------------------------------------------------- */
.traces-overlay {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 12;
    pointer-events: none;
}

.trace-path {
    pointer-events: none;
}

.trace-dot {
    pointer-events: none;
    fill: none;
    stroke: inherit;
}

/* Extra traces hidden on mobile (≤480px) */
.trace-extra {
    display: none;
}

@media (min-width: 481px) {
    .trace-extra {
        display: revert;
    }
}

/* --------------------------------------------------------------------------
   4. Content Group
   -------------------------------------------------------------------------- */
.content-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    max-width: 100%;
    z-index: 10;
    position: relative;
}

/* Logo-to-strapline gap: 1.5rem total */
.content-group > .logo {
    margin-bottom: 0.75rem;
}

/* --------------------------------------------------------------------------
   5. Logo
   -------------------------------------------------------------------------- */
.logo {
    width: min(60vw, 60vh, 600px);
    height: auto;
    aspect-ratio: 1;
    display: block;
}

/* --------------------------------------------------------------------------
   6. Typography
   -------------------------------------------------------------------------- */
.strapline {
    margin: 0;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: var(--text);
}

.email-link,
.site-link {
    font-size: 0.875rem;
    font-weight: 400;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: var(--text);
    text-decoration: underline;
    text-underline-offset: 0.2em;
    transition: text-decoration 200ms ease-out;
}

.email-link:hover,
.email-link:focus-visible,
.site-link:hover,
.site-link:focus-visible {
    text-decoration: none;
}

.site-links {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1.25rem;
    margin: 0;
    padding: 0;
}

/* --------------------------------------------------------------------------
   7. Theme Toggle
   -------------------------------------------------------------------------- */
.theme-toggle {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 8px;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: background-color 200ms ease-out, color 200ms ease-out;
    -webkit-tap-highlight-color: transparent;
}

.theme-toggle:hover {
    color: var(--text);
    background-color: color-mix(in srgb, var(--text-muted) 15%, transparent);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
}

/* Icon visibility */
[data-theme="dark"] .icon-sun {
    display: block;
}
[data-theme="dark"] .icon-moon {
    display: none;
}
[data-theme="light"] .icon-sun {
    display: none;
}
[data-theme="light"] .icon-moon {
    display: block;
}

/* --------------------------------------------------------------------------
   8. Focus
   -------------------------------------------------------------------------- */
:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

.email-link:focus-visible,
.site-link:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
    border-radius: 2px;
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   9. Responsive
   -------------------------------------------------------------------------- */
@media (min-width: 481px) {
    .content-group {
        padding: 2rem;
    }
}

@media (min-width: 769px) {
    .strapline {
        font-size: 1.125rem;
    }
}

/* --------------------------------------------------------------------------
   10. Reduced Motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
    body,
    .theme-toggle,
    .email-link,
    .site-link {
        transition: none;
    }
}

/* --------------------------------------------------------------------------
   11. Selection
   -------------------------------------------------------------------------- */
::selection {
    background-color: var(--trace-resting);
    color: var(--bg);
}