/* =============================================================================
   style.css — the single stylesheet that controls the whole site.

   HOW THIS FILE IS ORGANISED (top to bottom):
     1. Design tokens  — all colours, fonts and sizes as CSS variables (:root)
     2. Base / reset   — sensible defaults for the raw HTML elements
     3. Layout helpers — the centered content container, section spacing
     4. Navigation     — top nav bar + wordmark
     5. Hero           — large photo, responsive video, intro text
     6. Content blocks — "Life and Views", essays, contact, call-out strip
     7. Footer
     8. Responsive     — small tweaks for narrow (mobile) screens

   The whole look is driven by the variables in section 1. Change a value
   there once and it updates everywhere it is used.
   ========================================================================== */


/* -----------------------------------------------------------------------------
   1. DESIGN TOKENS
   These CSS custom properties (variables) are defined on :root (the <html>
   element) so every rule below can read them with var(--name).
   Edit colours, spacing or fonts here to re-skin the entire site.
   -------------------------------------------------------------------------- */
:root {
  /* --- Colour palette: dark & cinematic ---------------------------------- */
  --color-bg:            #181410;  /* warm, friendly near-black background    */
  --color-surface:       #211b16;  /* slightly lifted panels / strips        */
  --color-surface-2:     #2a231d;  /* hover / nested surface                 */

  --color-accent:        #b07a4b;  /* warm royal-brown: headings, links, btns */
  --color-accent-hover:  #d09a67;  /* lighter brown for hover / focus        */

  --color-text:          #ede8e1;  /* primary text: warm near-white          */
  --color-text-muted:    #948f88;  /* secondary text: gray                   */

  --color-border:        #37302a;  /* hairline borders / dividers            */

  /* --- Typography -------------------------------------------------------- */
  /* Clean, Apple-style sans-serif. Uses San Francisco (SF Pro) on Apple
     devices and Segoe UI on Windows — both crisp and modern. No web-font
     download, so the site stays fast. Headings use this stack too now. */
  --font-sans:  -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", Cambria, serif; /* kept available; no longer used */

  /* Heading weight + letter-spacing, tuned for a sleek, thin, Apple-like feel.
     Want headings even THINNER? lower --fw-heading to 500 (or 400).
     Want them heavier? raise it to 700. One change updates every heading. */
  --fw-heading:  600;
  --track-tight: -0.022em;  /* subtle negative letter-spacing on large text */

  --fs-hero:    clamp(1.9rem, 4.4vw, 3.1rem); /* hero headline (fluid)         */
  --fs-h1:      clamp(1.9rem, 4vw, 2.6rem);
  --fs-h2:      clamp(1.4rem, 3vw, 1.8rem);
  --fs-body:    1.05rem;
  --line-body:  1.75;                        /* generous line-height for prose */

  /* --- Spacing & sizing -------------------------------------------------- */
  --max-width:    1280px;  /* max width of the centered content column        */
  --max-text:     680px;   /* narrower width for long-form reading comfort    */
  --max-essays:   1200px;  /* wider measure for the essays page               */
  --nav-height:   92px;    /* height of the sticky top nav (used by the hero) */
  --gap:          1.25rem; /* default gap between stacked elements            */
  --section-pad:  clamp(3rem, 8vw, 6rem); /* vertical padding between sections */
  --radius:       10px;    /* corner radius for cards, buttons, media         */

  --transition:   180ms ease; /* shared easing for hovers / accordions        */
}


/* -----------------------------------------------------------------------------
   2. BASE / RESET
   A light reset so browsers start from the same place.
   -------------------------------------------------------------------------- */

/* border-box makes width/padding math predictable across every element. */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Strip default margins; we add spacing deliberately below. */
html,
body,
h1, h2, h3, h4,
p, ul, ol, figure {
  margin: 0;
}

html {
  /* Smooth scrolling when jumping to in-page anchors (e.g. footer links). */
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  font-weight: 400;              /* regular body weight; kept light and clean */
  letter-spacing: -0.006em;      /* a hair tighter — reads crisper on dark bg */
  line-height: var(--line-body);
  /* Font smoothing for crisper text on dark backgrounds. */
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* min-height + flex column keeps the footer at the bottom on short pages. */
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Headings: clean sans-serif, warm brown accent, thin weight + tight tracking
   for that modern, Apple-like look. */
h1, h2, h3 {
  font-family: var(--font-sans);          /* sans-serif, not serif */
  color: var(--color-accent);
  line-height: 1.15;
  font-weight: var(--fw-heading);         /* thinner than before (see :root) */
  letter-spacing: var(--track-tight);     /* tight tracking like Apple titles */
}

/* Links: brown by default, lighter brown on hover/focus. */
a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover,
a:focus-visible {
  color: var(--color-accent-hover);
}

/* Make images and iframes shrink to fit their container by default. */
img,
iframe {
  display: block;
  max-width: 100%;
}

/* Visible keyboard-focus outline for accessibility. */
:focus-visible {
  outline: 2px solid var(--color-accent-hover);
  outline-offset: 3px;
}


/* -----------------------------------------------------------------------------
   3. LAYOUT HELPERS
   -------------------------------------------------------------------------- */

/* .container centers content and caps its width; reused on every page. */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;        /* center horizontally */
  padding-inline: 1.5rem;     /* side gutters, also keeps content off edges */
}

/* <main> grows to fill available height so the footer sits at the bottom. */
main {
  flex: 1 0 auto;
}

/* Vertical rhythm between major page sections. */
.section {
  padding-block: var(--section-pad);
}

/* A thin divider line between sections when we want visual separation. */
.section + .section {
  border-top: 1px solid var(--color-border);
}

/* Constrains prose to a comfortable reading measure. */
.prose {
  max-width: var(--max-text);
}
.prose p {
  color: var(--color-text-muted); /* body copy is gray (secondary) */
  margin-bottom: 1.1rem;
}
.prose p:last-child {
  margin-bottom: 0;
}

/* A brighter, larger prose variant — used for the "Life and Views" text. */
.prose--lead p {
  font-size: 1.22rem;
  line-height: 1.7;
  color: #cdc7be;   /* a little whiter than the muted gray */
}


/* -----------------------------------------------------------------------------
   4. NAVIGATION (top bar)
   Layout: wordmark on the left, links on the right, using flexbox.
   -------------------------------------------------------------------------- */
.site-nav {
  position: sticky;           /* stays pinned to the top while scrolling */
  top: 0;
  z-index: 10;
  background-color: rgba(11, 10, 9, 0.82); /* semi-transparent bg ... */
  backdrop-filter: blur(8px);              /* ... with a frosted blur  */
  border-bottom: 1px solid var(--color-border);
}

.site-nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between; /* pushes wordmark + links apart */
  min-height: var(--nav-height);
}

/* The "Lalaland" wordmark — placeholder brand text, easy to change in HTML. */
.wordmark {
  font-family: var(--font-sans);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);   /* wordmark stays near-white, not brown */
}
/* The wordmark in the TOP NAV is the brand mark, so it's much larger. */
.site-nav .wordmark {
  font-size: 2.7rem;          /* ~2x bigger; lower this if it feels too big */
  line-height: 1;
}
.wordmark:hover,
.wordmark:focus-visible {
  color: var(--color-accent-hover);
}

/* The nav links list, laid out in a row. */
.nav-links {
  list-style: none;           /* remove bullet points */
  padding: 0;
  display: flex;
  gap: 1.5rem;
  font-size: 0.98rem;
}
.nav-links a {
  color: var(--color-text-muted); /* gray until hovered */
}
.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"] {   /* highlight the current page */
  color: var(--color-accent);
}


/* -----------------------------------------------------------------------------
   5. HERO (home page top section)
   -------------------------------------------------------------------------- */
/* The hero is a full-width, two-column split (text left, photo right). It is
   NOT wrapped in .container, so the photo can bleed to the screen's edge. */
.hero {
  display: grid;
  /* Left column grows; the right column holds the photo + caption. */
  grid-template-columns: minmax(0, 1fr) clamp(340px, 42vw, 480px);
  align-items: stretch;
  min-height: calc(100vh - var(--nav-height)); /* fill most of the viewport */
}

/* LEFT column: headline + intro + video, vertically centered. */
.hero__left {
  display: flex;
  flex-direction: column;
  justify-content: center;
  /* Left padding is computed so the headline lines up exactly with the nav
     wordmark and the sections below (all share the same container gutter).
     Order: top  right  bottom  left. */
  padding: clamp(2.5rem, 6vw, 5rem)
           clamp(1.75rem, 3vw, 3.5rem)
           clamp(2.5rem, 6vw, 5rem)
           max(1.5rem, calc((100vw - var(--max-width)) / 2 + 1.5rem));
}
.hero__title {
  font-size: var(--fs-hero);
  letter-spacing: -0.03em;   /* large display text gets tighter tracking */
  line-height: 1.08;
  margin-bottom: 1.2rem;
}
.hero__intro {
  max-width: 46ch;           /* keep the intro line length comfortable */
  color: var(--color-text-muted);
  font-size: 1.2rem;
  line-height: 1.6;
  margin-bottom: 2.5rem;
}
/* The video sits below the intro, inside the left column. */
.hero__video {
  width: 100%;
  max-width: 560px;          /* don't let it get too wide in the column */
}

/* RIGHT column: the large photo, filling its column edge-to-edge. */
.hero__right {
  display: flex;
  flex-direction: column;
  justify-content: center;    /* vertically center the photo */
  align-items: flex-start;    /* sit it toward the LEFT of its column */
  padding: clamp(2rem, 4vw, 3rem) clamp(1rem, 3vw, 2.5rem);
}
.hero__figure {
  margin: 0;
  width: 100%;
  max-width: 400px;           /* a good, large size for the portrait photo */
}
.hero__photo {
  display: block;
  width: 100%;
  height: auto;               /* the WHOLE photo, natural shape, nothing cropped */
  border-radius: var(--radius);
}
.hero__caption {
  margin-top: 0.85rem;
  color: var(--color-text-muted);
  font-size: 1rem;
  font-style: italic;
  letter-spacing: -0.005em;
}

/* --- Responsive 16:9 video wrapper -------------------------------------
   The classic padding-top trick: a wrapper with 56.25% top padding
   (9 / 16 = 0.5625) holds its aspect ratio at any width, and the iframe
   is stretched to fill it absolutely. Works in every browser. */
.video-wrapper {
  position: relative;
  width: 100%;
  padding-top: 56.25%;        /* 16:9 aspect ratio */
  border-radius: var(--radius);
  overflow: hidden;           /* clip the iframe corners to the radius */
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
}
.video-wrapper iframe {
  position: absolute;
  inset: 0;                   /* top/right/bottom/left all 0 */
  width: 100%;
  height: 100%;
  border: 0;
}

/* --- Video facade (click-to-play preview) + lightbox overlay -------------
   The ".video" preview is a 16:9 button with a play symbol. Clicking it opens
   the big player in the #video-modal overlay (wired up in script.js). */
.video {
  width: 100%;
  max-width: 560px;           /* preview size inside the hero's left column */
}
.video__facade {
  position: relative;
  display: block;
  width: 100%;
  padding-top: 56.25%;        /* 16:9 */
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--color-surface-2), var(--color-surface));
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--transition);
}
.video__facade:hover,
.video__facade:focus-visible {
  border-color: var(--color-accent);
}
/* The round play button in the middle. */
.video__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: var(--color-accent);
  transition: background-color var(--transition), transform var(--transition);
}
/* The white-ish triangle inside the play button (a CSS-only "▶"). */
.video__play::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 54%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 11px 0 11px 19px;
  border-color: transparent transparent transparent var(--color-bg);
}
.video__facade:hover .video__play {
  background: var(--color-accent-hover);
  transform: translate(-50%, -50%) scale(1.06);
}
.video__label {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 14px;
  text-align: center;
  color: var(--color-text);
  font-size: 0.95rem;
  letter-spacing: -0.01em;
}

/* The lightbox overlay (hidden until opened). */
.video-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.video-modal[hidden] {
  display: none;              /* override the flex display when hidden */
}
.video-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(4px);
}
.video-modal__dialog {
  position: relative;
  z-index: 1;                 /* sit above the backdrop */
  width: min(1100px, 92vw);
}
.video-modal__frame {
  position: relative;
  width: 100%;
  padding-top: 56.25%;        /* 16:9 big player */
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
}
.video-modal__frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.video-modal__close {
  position: absolute;
  top: -2.6rem;
  right: 0;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.8rem;
  line-height: 1;
  cursor: pointer;
  transition: color var(--transition);
}
.video-modal__close:hover,
.video-modal__close:focus-visible {
  color: var(--color-accent-hover);
}


/* -----------------------------------------------------------------------------
   6. CONTENT BLOCKS
   -------------------------------------------------------------------------- */

/* Shared small label above section headings (optional eyebrow text). */
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  color: var(--color-text-muted);
  margin-bottom: 0.6rem;
}

.section__title {
  font-size: var(--fs-h1);
  margin-bottom: 1.5rem;
}

/* --- Buttons ------------------------------------------------------------ */
.btn {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  padding: 0.6rem 1.2rem;
  border-radius: var(--radius);
  border: 1px solid var(--color-accent);
  background-color: transparent;
  color: var(--color-accent);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition);
}
.btn:hover,
.btn:focus-visible {
  background-color: var(--color-accent);
  color: var(--color-bg);     /* dark text on brown fill when hovered */
}

/* --- Call-out strip ("New features coming soon") ------------------------ */
.callout {
  background-color: var(--color-surface);
  border-block: 1px solid var(--color-border);
  text-align: center;
  padding-block: clamp(2.5rem, 6vw, 4rem);
}
.callout__text {
  font-family: var(--font-sans);
  font-size: var(--fs-h2);
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: var(--track-tight);
}

/* --- Essays accordion --------------------------------------------------- */
/* Each essay is one <article class="essay">. The title is a button that
   toggles the panel below it open/closed (behaviour lives in script.js). */
.essay-list {
  max-width: var(--max-essays);  /* wider than prose: uses more of the screen */
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.essay {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-surface);
  overflow: hidden;
}

/* The clickable title row. It's a real <button> for keyboard + screen-reader
   support; we reset its default look to match our design. */
.essay__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  text-align: left;
  padding: 1.1rem 1.25rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-accent);
  transition: background-color var(--transition);
}
.essay__toggle:hover {
  background-color: var(--color-surface-2);
}

/* The little +/- indicator on the right. We rotate it when open. */
.essay__icon {
  flex: none;
  font-size: 1.4rem;
  line-height: 1;
  color: var(--color-text-muted);
  transition: transform var(--transition);
}
.essay__toggle[aria-expanded="true"] .essay__icon {
  transform: rotate(45deg);   /* a "+" becomes an "x"-like close marker */
}

/* --- The collapsible panel ---------------------------------------------
   Smooth accordion trick: we animate max-height between 0 and a large value.
   The panel starts collapsed (max-height:0, hidden overflow). script.js sets
   the exact pixel height so the transition is smooth, then toggles a class. */
.essay__panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}
.essay__panel-inner {
  /* Padding lives on an inner element so it doesn't affect the collapsed
     (max-height:0) state — the outer panel can close fully to zero. */
  padding: 0 1.75rem 1.8rem;
  color: var(--color-text-muted);
  font-size: 1.22rem;        /* larger body text for comfortable reading */
  line-height: 1.8;
}
.essay__panel-inner p {
  margin-bottom: 1rem;
}
/* Headings inside an essay (the "# Title" line renders as one of these).
   Kept modest so the essay's title reads as a small subheading. */
.essay__panel-inner h1,
.essay__panel-inner h2,
.essay__panel-inner h3 {
  font-size: 2rem;           /* large subtitle, clearly above the body text */
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--color-accent);
  margin: 1.6rem 0 0.9rem;
}
/* The first heading (the essay's title/subtitle) sits flush at the top. */
.essay__panel-inner h1:first-child,
.essay__panel-inner h2:first-child,
.essay__panel-inner h3:first-child {
  margin-top: 0;
}

/* The download-PDF button sits at the bottom of the open panel. */
.essay__actions {
  margin-top: 1.2rem;
}

/* --- Contact page ------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem, 5vw, 3rem);
  align-items: start;
}
.contact__photo {
  width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}
/* A simple definition-style list of contact details. */
.contact__list {
  list-style: none;
  padding: 0;
}
.contact__list li {
  padding-block: 0.7rem;
  border-bottom: 1px solid var(--color-border);
}
.contact__list li:last-child {
  border-bottom: none;
}
.contact__label {
  display: block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--color-text-muted);
  margin-bottom: 0.2rem;
}


/* -----------------------------------------------------------------------------
   7. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  flex: none;                 /* don't grow; main already fills the gap */
  border-top: 1px solid var(--color-border);
  background-color: var(--color-surface);
  padding-block: 2.5rem;
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.site-footer .wordmark {
  font-size: 1.2rem;
}
.footer-links {
  list-style: none;
  padding: 0;
  display: flex;
  gap: 1.5rem;
  font-size: 0.95rem;
}
.footer-links a {
  color: var(--color-text-muted);
}
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-accent);
}


/* -----------------------------------------------------------------------------
   8. RESPONSIVE (mobile)
   Everything above is written desktop-first; these overrides kick in on
   narrow screens. 720px is our breakpoint for stacking two-column layouts.
   -------------------------------------------------------------------------- */
/* Hero: below 900px the split is too cramped, so stack it. The photo moves
   to the top as a banner, then the text + video below it. */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .hero__right {
    order: -1;              /* photo on top */
    align-items: center;    /* center the photo on small screens */
    padding: 1.75rem 1.5rem 0;
  }
  .hero__figure {
    max-width: 300px;
  }
  .hero__left {
    padding: 2.25rem 1.5rem;
  }
  .hero__intro {
    max-width: 100%;
  }
}

@media (max-width: 720px) {
  /* Stack the contact photo + details vertically. */
  .contact-grid {
    grid-template-columns: 1fr;
  }
  /* Tighten the nav: shorter bar, smaller wordmark + links. */
  .site-nav .container {
    min-height: 72px;
  }
  .site-nav .wordmark {
    font-size: 1.9rem;
  }
  .nav-links {
    gap: 1rem;
    font-size: 0.9rem;
  }
  /* Let the footer wordmark + links stack neatly. */
  .site-footer .container {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* Extra-small phones: hide the wordmark subtlety isn't needed, but we can
   reduce the nav height a touch for more vertical room. */
@media (max-width: 420px) {
  .site-nav .container {
    min-height: 58px;
  }
}

/* Respect users who prefer reduced motion: turn off smooth animations. */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
  }
}