/* ============================================================
   DESIGN TOKENS — Shan Oomes Portfolio
   Inspired by: Off-White™ (off---white.com)
   Aesthetic: Luxury editorial minimalism

   HOW TO USE:
   Import this file first in your main stylesheet.
   Reference tokens via var(--token-name).
   Do not hard-code any colour, size, or spacing value
   that has a token defined here.
   ============================================================ */

:root {

  /* ----------------------------------------------------------
     COLOURS
  ---------------------------------------------------------- */

  /* Core palette */
  --color-white:        #FFFFFF;
  --color-off-white:    #F2F2F2;  /* secondary section backgrounds */
  --color-black:        #000000;
  --color-near-black:   #111111;  /* borders, dividers */
  --color-muted:        #555555;  /* captions, metadata, dates */

  /* Accent — used ONLY for interactive elements */
  --color-accent:       #1400FF;  /* links, active nav, hover labels */
  --color-accent-red:   #FF2000;  /* "open to work" badge, use sparingly */

  /* Semantic aliases */
  --color-bg:           var(--color-white);
  --color-bg-secondary: var(--color-off-white);
  --color-text:         var(--color-black);
  --color-text-muted:   var(--color-muted);
  --color-border:       var(--color-near-black);
  --color-link:         var(--color-accent);
  --color-link-hover:   var(--color-black);


  /* ----------------------------------------------------------
     TYPOGRAPHY
  ---------------------------------------------------------- */

  /* Font families */
  --font-serif:   'Playfair Display', 'Times New Roman', Georgia, serif;
  --font-sans:    'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono:    'IBM Plex Mono', 'Courier New', monospace;

  /* Font sizes — fluid where possible */
  --text-logo:    clamp(24px, 3.5vw, 40px);
  --text-h1:      clamp(40px, 6vw, 80px);
  --text-h2:      12px;   /* section labels — always small, always uppercase */
  --text-h3:      clamp(18px, 2vw, 24px);
  --text-body:    16px;
  --text-sm:      14px;
  --text-xs:      11px;   /* captions, buttons, nav links */

  /* Font weights */
  --weight-light:   300;
  --weight-regular: 400;
  --weight-medium:  500;

  /* Letter spacing */
  --tracking-tight:  -0.03em;
  --tracking-normal:  0;
  --tracking-label:   0.12em;  /* for uppercase labels, H2, captions */
  --tracking-nav:     0.08em;  /* nav links */
  --tracking-button:  0.10em;  /* CTA buttons */

  /* Line heights */
  --leading-tight:  1.05;
  --leading-snug:   1.2;
  --leading-normal: 1.5;
  --leading-body:   1.65;


  /* ----------------------------------------------------------
     SPACING  (8px grid)
  ---------------------------------------------------------- */

  --space-1:   8px;
  --space-2:  16px;
  --space-3:  24px;
  --space-4:  32px;
  --space-5:  40px;
  --space-6:  48px;
  --space-8:  64px;
  --space-10: 80px;
  --space-12: 96px;
  --space-15: 120px;
  --space-20: 160px;

  /* Semantic spacing aliases */
  --gap-xs:   var(--space-1);
  --gap-sm:   var(--space-2);
  --gap-md:   var(--space-3);
  --gap-lg:   var(--space-6);
  --gap-xl:   var(--space-10);
  --gap-xxl:  var(--space-15);

  --section-padding-y: var(--space-15);
  --content-padding-x: var(--space-3);


  /* ----------------------------------------------------------
     LAYOUT
  ---------------------------------------------------------- */

  /* Content column width chosen to match provided screenshots */
  --max-width-content: 1300px;
  --max-width-wide:    1440px;
  --max-width-text:     680px;

  --grid-columns:  12;
  --grid-gutter:   24px;

  /* Navbar */
  --navbar-height:      56px;
  --navbar-bg:          var(--color-white);
  --navbar-border:      1px solid var(--color-near-black);

  /* Announcement bar */
  --bar-height:         32px;
  --bar-bg:             var(--color-off-white);


  /* ----------------------------------------------------------
     BORDERS & SHAPES
  ---------------------------------------------------------- */

  --border-width:    1px;
  --border-color:    var(--color-near-black);
  --border:          var(--border-width) solid var(--border-color);
  --border-muted:    var(--border-width) solid #E0E0E0;

  /* No border-radius — ever. Square corners only. */
  --radius:          0px;


  /* ----------------------------------------------------------
     SHADOWS
  ---------------------------------------------------------- */

  --shadow-none:  none;


  /* ----------------------------------------------------------
     ANIMATION
  ---------------------------------------------------------- */

  --ease-default:  ease;
  --ease-out:      ease-out;
  --ease-in-out:   ease-in-out;

  --duration-fast:    100ms;
  --duration-base:    150ms;
  --duration-medium:  200ms;
  --duration-slow:    400ms;

  /* Transitions */
  --transition-color:     color var(--duration-base) var(--ease-default);
  --transition-bg:        background-color var(--duration-base) var(--ease-default);
  --transition-button:    color var(--duration-base) var(--ease-default),
                          background-color var(--duration-base) var(--ease-default),
                          border-color var(--duration-base) var(--ease-default);
  --transition-scale:     transform var(--duration-medium) var(--ease-out);
  --transition-fade-up:   opacity var(--duration-slow) var(--ease-out),
                          transform var(--duration-slow) var(--ease-out);


  /* ----------------------------------------------------------
     Z-INDEX SCALE
  ---------------------------------------------------------- */

  --z-base:     0;
  --z-above:    10;
  --z-overlay:  100;
  --z-nav:      200;
  --z-modal:    300;


  /* ----------------------------------------------------------
     IMAGE ASPECT RATIOS
  ---------------------------------------------------------- */

  --ratio-portrait:   3 / 4;
  --ratio-landscape:  16 / 9;
  --ratio-square:     1 / 1;

}


/* ============================================================
   DARK MODE OVERRIDES
   Applied via data-theme="dark" on <html>.
   Override only the semantic tokens — primitives stay put.
============================================================ */

[data-theme="dark"] {
  /* Palette overrides */
  --color-near-black:    #3A3A3A;   /* drives --border, --navbar-border automatically */

  /* Semantic overrides */
  --color-bg:            #0F0F0F;
  --color-bg-secondary:  #161616;
  --color-text:          #EEEEEE;
  --color-text-muted:    #888888;
  --color-link-hover:    #EEEEEE;

  /* Border shorthands that hardcode a color */
  --border-muted:        1px solid #1E1E1E;

  /* Component-level */
  --navbar-bg:           #0F0F0F;
  --bar-bg:              #161616;
}


/* ============================================================
   REDUCED MOTION OVERRIDE
   Always respect user preferences.
============================================================ */

@media (prefers-reduced-motion: reduce) {
  :root {
    --duration-fast:   0ms;
    --duration-base:   0ms;
    --duration-medium: 0ms;
    --duration-slow:   0ms;
  }
}


/* ============================================================
   GOOGLE FONTS IMPORT
   Add this to your <head> instead if you prefer link tags.
============================================================ */

/* @import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@300;400&family=Inter:wght@300;400;500&family=IBM+Plex+Mono:wght@400&display=swap'); */


/* ============================================================
   BASE RESET & GLOBAL DEFAULTS
============================================================ */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: var(--weight-light);
  line-height: var(--leading-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-link);
  text-decoration: none;
  transition: var(--transition-color);
}

a:hover {
  color: var(--color-link-hover);
}


/* ============================================================
   TYPOGRAPHY DEFAULTS
============================================================ */

h1 {
  font-family: var(--font-serif);
  font-size: var(--text-h1);
  font-weight: var(--weight-regular);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
}

h2 {
  /* H2 is always a section label — small, uppercase, tracked */
  font-family: var(--font-sans);
  font-size: var(--text-h2);
  font-weight: var(--weight-regular);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  line-height: var(--leading-snug);
  border-bottom: var(--border);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-4);
}

h3 {
  font-family: var(--font-sans);
  font-size: var(--text-h3);
  font-weight: var(--weight-regular);
  letter-spacing: -0.01em;
  line-height: var(--leading-snug);
}

p {
  font-size: var(--text-body);
  font-weight: var(--weight-light);
  line-height: var(--leading-body);
  max-width: var(--max-width-text);
}

small,
.caption {
  font-size: var(--text-xs);
  font-weight: var(--weight-regular);
  text-transform: uppercase;
  letter-spacing: var(--tracking-label);
  color: var(--color-text-muted);
}

code,
pre {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}


/* ============================================================
   BUTTON DEFAULTS
============================================================ */

.btn {
  display: inline-block;
  padding: 12px var(--space-3);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-regular);
  text-transform: uppercase;
  letter-spacing: var(--tracking-button);
  line-height: 1;
  cursor: pointer;
  border-radius: var(--radius);
  transition: var(--transition-button);
}

/* Primary: black fill */
.btn-primary {
  background-color: var(--color-black);
  color: var(--color-white);
  border: var(--border-width) solid var(--color-black);
}

.btn-primary:hover {
  background-color: var(--color-white);
  color: var(--color-black);
  border-color: var(--color-black);
}

/* Secondary: white fill with black border */
.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-black);
  border: var(--border-width) solid var(--color-black);
}

.btn-secondary:hover {
  background-color: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

/* Image overlay button */
.btn-overlay {
  background-color: var(--color-white);
  color: var(--color-black);
  border: none;
  padding: 10px var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-regular);
  text-transform: uppercase;
  letter-spacing: var(--tracking-button);
  line-height: 1;
  cursor: pointer;
  border-radius: var(--radius);
}


/* ============================================================
   LAYOUT UTILITIES
============================================================ */

.container {
  width: 100%;
  max-width: var(--max-width-content);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.container--wide {
  max-width: var(--max-width-wide);
}

.section {
  padding-block: var(--section-padding-y);
}

.section--secondary {
  background-color: var(--color-bg-secondary);
}

.divider {
  display: none;
}