/*
 * Aura Shots design tokens: the single source of truth for how the site looks.
 * Read visual-guide.md for the reason behind every value.
 * Fonts are declared in assets/fonts/fonts.css (self-hosted, SIL OFL 1.1).
 *
 * Structure
 *   1. Raw palette (do not use directly in components; use the semantic tokens)
 *   2. Semantic colour tokens, dark theme (default) and light theme
 *   3. Type, spacing, radius, shadow, motion, sizing
 *
 * Contrast (WCAG 2.1 AA) is verified in visual-guide.md. Rules that matter:
 *   - Pink TEXT only on --ink-0 / --surface-1 (dark) or use --pink-ink on light.
 *   - Pink FILLS carry Noir text, never Pearl.
 */

:root {
  /* ---------- 1. Raw palette ---------- */
  --noir: #0a0a0a;          /* brand black, page background */
  --noir-1: #151115;        /* raised surface (cards, header) */
  --noir-2: #201a1f;        /* higher surface (inputs, chips, menus) */
  --noir-line: #3a3138;     /* decorative hairlines only (not for UI boundaries) */
  --noir-edge: #8c8187;     /* UI boundaries: input borders, outlines (3:1+) */
  --pearl: #f6f1ef;         /* brand off-white */
  --pearl-2: #efe8e5;       /* light-theme raised surface */
  --white: #ffffff;
  --mist: #b8adb2;          /* secondary text on dark */
  --umber: #5e5258;         /* secondary text on light */
  --umber-edge: #7a6e74;    /* UI boundaries on light */

  --aura-pink: #e0457b;     /* brand pink, as proposed in brand-brief.md (unchanged) */
  --aura-pink-hover: #eb6b98;
  --aura-pink-press: #f4c6d7;
  --aura-pink-tint: #f4c6d7;
  --aura-pink-ink: #b3205a; /* pink for text/fills on LIGHT surfaces (adjusted shade) */

  --green: #4ade80;  --green-ink: #14703a;
  --amber: #f5b942;  --amber-ink: #8a5a00;
  --coral: #ff7b72;  --coral-ink: #b3261e;
  --sky:   #7db8ff;  --sky-ink:   #1f5fa8;

  /* ---------- 2a. Semantic colours, dark theme (default) ---------- */
  color-scheme: dark;
  --color-bg: var(--noir);
  --color-surface: var(--noir-1);
  --maker-mark: #84cc16;      /* PJM credit badge in the footer (owner's choice, as on Zandy Touch); about 10:1 on the footer surface */
  --color-surface-raised: var(--noir-2);
  --color-text: var(--pearl);
  --color-text-muted: var(--mist);
  --color-text-on-accent: var(--noir);       /* text on pink / semantic fills */
  --color-border: var(--noir-line);          /* decorative */
  --color-border-strong: var(--noir-edge);   /* form fields, outline buttons */

  --color-primary: var(--aura-pink);         /* fills: buttons, selected chips */
  --color-primary-hover: var(--aura-pink-hover);
  --color-primary-press: var(--aura-pink-press);
  --color-accent-text: var(--aura-pink);     /* links and highlights on dark */
  --color-accent-text-hover: var(--aura-pink-hover);
  --color-accent-tint: var(--aura-pink-tint);

  --color-success: var(--green);
  --color-warning: var(--amber);
  --color-error: var(--coral);
  --color-info: var(--sky);

  --color-disabled-bg: #2a242a;
  --color-disabled-text: #9a8f95;
  --color-focus-ring: var(--pearl);
  --color-overlay: rgb(10 10 10 / 0.72);
  --gradient-hero-scrim: linear-gradient(to top, rgb(10 10 10 / 0.88) 0%, rgb(10 10 10 / 0.45) 45%, rgb(10 10 10 / 0) 100%);

  /* ---------- Fonts ---------- */
  --font-heading: "Cormorant Garamond", "Iowan Old Style", Georgia, "Times New Roman", serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; /* booking references */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;

  /* ---------- 3. Type scale (rem; 1rem = 16px) ---------- */
  --text-xs: 0.8125rem;   /* 13px: badges, captions, legal footnotes */
  --text-sm: 0.9375rem;   /* 15px: hints, table text, admin secondary */
  --text-base: 1.0625rem; /* 17px: body */
  --text-lg: 1.25rem;     /* 20px: lead paragraphs, prices on cards */
  --text-xl: 1.625rem;    /* 26px: h4 / card titles (heading font) */
  --text-2xl: clamp(1.875rem, 1.5rem + 1.6vw, 2.5rem);   /* h3 */
  --text-3xl: clamp(2.25rem, 1.7rem + 2.6vw, 3.5rem);    /* h2 */
  --text-4xl: clamp(2.75rem, 1.9rem + 4.2vw, 5rem);      /* h1 / hero */
  --leading-tight: 1.1;   /* display headings */
  --leading-snug: 1.3;
  --leading-body: 1.6;
  --tracking-display: -0.01em;
  --tracking-badge: 0.08em;
  --tracking-eyebrow: 0.14em;
  --measure: 66ch;        /* max line length for reading text */

  /* ---------- Spacing (4px base) ---------- */
  --space-0: 0;
  --space-1: 0.25rem;  /* 4 */
  --space-2: 0.5rem;   /* 8 */
  --space-3: 0.75rem;  /* 12 */
  --space-4: 1rem;     /* 16 */
  --space-5: 1.5rem;   /* 24 */
  --space-6: 2rem;     /* 32 */
  --space-7: 3rem;     /* 48 */
  --space-8: 4rem;     /* 64 */
  --space-9: 6rem;     /* 96 */
  --space-10: 8rem;    /* 128 section rhythm on desktop */
  --gutter: var(--space-4);          /* page side padding, mobile */
  --gutter-wide: var(--space-6);     /* page side padding, 960px and up */

  /* ---------- Sizing ---------- */
  --content-max: 1200px;
  --reading-max: 44rem;
  --tap-min: 48px;          /* every interactive control */
  --tap-comfort: 56px;      /* primary call-to-action height */
  --icon-sm: 20px;
  --icon-md: 24px;
  --icon-lg: 32px;
  --icon-stroke: 1.5;
  --bp-sm: 640px;           /* reference only: custom properties cannot be used in media queries */
  --bp-md: 960px;
  --bp-lg: 1200px;

  /* ---------- Aspect ratios for imagery ---------- */
  --ratio-portrait: 3 / 4;    /* portfolio masters and tiles */
  --ratio-card: 4 / 5;        /* service and product cards */
  --ratio-square: 1 / 1;      /* merchandise, thumbnails */
  --ratio-hero: 16 / 9;       /* hero (21 / 9 allowed on wide screens) */
  --ratio-og: 1200 / 630;     /* social sharing image */

  /* ---------- Radius ---------- */
  --radius-xs: 2px;    /* photo corners inside lightbox */
  --radius-sm: 4px;    /* portfolio tiles, thumbnails */
  --radius-md: 8px;    /* inputs, cards, panels */
  --radius-lg: 16px;   /* dialogs, calendar, agreement panel */
  --radius-pill: 999px;/* buttons, chips, badges */

  /* ---------- Borders ---------- */
  --border-hair: 1px solid var(--color-border);
  --border-field: 1px solid var(--color-border-strong);
  --border-field-width: 1px;
  --border-error-width: 2px;
  --focus-width: 3px;
  --focus-offset: 3px;

  /* ---------- Shadows (on dark, depth is mostly surface tone; the glow is the "aura") ---------- */
  --shadow-sm: 0 1px 2px rgb(0 0 0 / 0.5);
  --shadow-md: 0 8px 24px rgb(0 0 0 / 0.55);
  --shadow-lg: 0 24px 64px rgb(0 0 0 / 0.65);
  --shadow-aura: 0 0 0 1px rgb(224 69 123 / 0.55), 0 10px 36px rgb(224 69 123 / 0.28);
  --shadow-inset-press: inset 0 2px 4px rgb(0 0 0 / 0.35);

  /* ---------- Motion ---------- */
  --duration-fast: 120ms;
  --duration-base: 200ms;
  --duration-slow: 400ms;
  --ease-standard: cubic-bezier(0.2, 0, 0, 1);

  /* ---------- Z layers ---------- */
  --z-header: 100;
  --z-menu: 200;
  --z-dialog: 300;
  --z-toast: 400;
}

/* ---------- 2b. Light theme: admin screens, legal text, agreement panels, printed pages ---------- */
:root[data-theme="light"],
[data-theme="light"] {
  color-scheme: light;
  --color-bg: var(--pearl);
  --color-surface: var(--white);
  --color-surface-raised: var(--pearl-2);
  --color-text: var(--noir);
  --color-text-muted: var(--umber);
  --color-text-on-accent: var(--noir);
  --color-border: #ddd3cf;
  --color-border-strong: var(--umber-edge);

  --color-primary: var(--aura-pink);          /* Noir text on it: 5.00:1 */
  --color-primary-hover: var(--aura-pink-hover);
  --color-primary-press: var(--aura-pink-press);
  --color-accent-text: var(--aura-pink-ink);  /* links on light: 5.73:1 on Pearl */
  --color-accent-text-hover: #8f1848;

  --color-success: var(--green-ink);
  --color-warning: var(--amber-ink);
  --color-error: var(--coral-ink);
  --color-info: var(--sky-ink);

  --color-disabled-bg: #e4dcd9;
  --color-disabled-text: #5e5258;
  --color-focus-ring: var(--aura-pink-ink);
  --color-overlay: rgb(10 10 10 / 0.6);

  --shadow-sm: 0 1px 2px rgb(10 10 10 / 0.12);
  --shadow-md: 0 8px 24px rgb(10 10 10 / 0.14);
  --shadow-lg: 0 24px 64px rgb(10 10 10 / 0.2);
}

/* Respect the visitor's motion preference at token level. */
@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast: 0ms;
    --duration-base: 0ms;
    --duration-slow: 0ms;
  }
}

/* Larger gutters from tablet up (value only; layout belongs to the frontend). */
@media (min-width: 960px) {
  :root { --gutter: var(--gutter-wide); }
}