/* ============================================================
   24 Seven Agencies (24SA) — Brand Style System
   A full service, integrated house of agencies.
   Futureman + SketchDeck + Markacy
   ============================================================ */

/* ————————————————————————————————————————————————————————————
   1. CUSTOM PROPERTIES (Design Tokens)
   ———————————————————————————————————————————————————————————— */

:root {

  /* — Core Brand Colors — */
  --24sa-black:            #0A0A0A;
  --24sa-pure-black:       #000000;
  --24sa-cream:            #F0E6D6;
  --24sa-warm-white:       #F5EDE3;
  --24sa-white:            #FFFFFF;

  /* — Sub-Brand Accent Colors — */
  --futureman-yellow:      #FFD600;
  --sketchdeck-blue:       #B3C4E8;
  --sketchdeck-lavender:   #7B8FCC;
  --markacy-orange:        #FF5A36;
  --markacy-red:           #E8472D;

  /* — Semantic / UI Colors — */
  --color-bg-dark:         var(--24sa-black);
  --color-bg-light:        var(--24sa-cream);
  --color-bg-warm:         var(--24sa-warm-white);
  --color-text-on-dark:    var(--24sa-cream);
  --color-text-on-light:   var(--24sa-pure-black);
  --color-accent-primary:  var(--futureman-yellow);
  --color-accent-secondary: var(--sketchdeck-blue);
  --color-accent-tertiary: var(--markacy-orange);

  /* — Neutral Grays — */
  --gray-900:              #1A1A1A;
  --gray-800:              #2A2A2A;
  --gray-700:              #3D3D3D;
  --gray-600:              #555555;
  --gray-500:              #777777;
  --gray-400:              #999999;
  --gray-300:              #BBBBBB;
  --gray-200:              #DDDDDD;
  --gray-100:              #EEEEEE;

  /* — Typography — */
  --font-serif:            'Playfair Display', 'Noto Serif Display', 'Georgia', 'Times New Roman', serif;
  --font-sans:             'Inter', 'Helvetica Neue', 'Arial', sans-serif;
  --font-mono:             'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  /* — Font Weights — */
  --weight-light:          300;
  --weight-regular:        400;
  --weight-medium:         500;
  --weight-semibold:       600;
  --weight-bold:           700;
  --weight-black:          900;

  /* — Font Sizes (fluid scale) — */
  --text-xs:               clamp(0.694rem, 0.66rem + 0.17vw, 0.8rem);
  --text-sm:               clamp(0.833rem, 0.78rem + 0.27vw, 1rem);
  --text-base:             clamp(1rem, 0.93rem + 0.36vw, 1.25rem);
  --text-lg:               clamp(1.2rem, 1.09rem + 0.53vw, 1.563rem);
  --text-xl:               clamp(1.44rem, 1.29rem + 0.75vw, 1.953rem);
  --text-2xl:              clamp(1.728rem, 1.51rem + 1.08vw, 2.441rem);
  --text-3xl:              clamp(2.074rem, 1.77rem + 1.52vw, 3.052rem);
  --text-4xl:              clamp(2.488rem, 2.07rem + 2.09vw, 3.815rem);
  --text-5xl:              clamp(2.986rem, 2.41rem + 2.88vw, 4.768rem);
  --text-display:          clamp(3.583rem, 2.79rem + 3.97vw, 6.25rem);

  /* — Line Heights — */
  --leading-tight:         1.1;
  --leading-snug:          1.25;
  --leading-normal:        1.5;
  --leading-relaxed:       1.65;

  /* — Letter Spacing — */
  --tracking-tight:        -0.02em;
  --tracking-normal:       0;
  --tracking-wide:         0.05em;
  --tracking-wider:        0.1em;
  --tracking-widest:       0.2em;

  /* — Spacing Scale — */
  --space-1:               0.25rem;
  --space-2:               0.5rem;
  --space-3:               0.75rem;
  --space-4:               1rem;
  --space-5:               1.25rem;
  --space-6:               1.5rem;
  --space-8:               2rem;
  --space-10:              2.5rem;
  --space-12:              3rem;
  --space-16:              4rem;
  --space-20:              5rem;
  --space-24:              6rem;
  --space-32:              8rem;

  /* — Border Radius — */
  --radius-sm:             0.25rem;
  --radius-md:             0.5rem;
  --radius-lg:             0.75rem;
  --radius-xl:             1rem;
  --radius-2xl:            1.5rem;
  --radius-full:           9999px;

  /* — Shadows — */
  --shadow-sm:             0 1px 2px rgba(0, 0, 0, 0.08);
  --shadow-md:             0 4px 12px rgba(0, 0, 0, 0.12);
  --shadow-lg:             0 8px 30px rgba(0, 0, 0, 0.16);
  --shadow-xl:             0 16px 50px rgba(0, 0, 0, 0.24);

  /* — Transitions — */
  --ease-smooth:           cubic-bezier(0.25, 0.1, 0.25, 1);
  --ease-bounce:           cubic-bezier(0.34, 1.56, 0.64, 1);
  --duration-fast:         150ms;
  --duration-normal:       300ms;
  --duration-slow:         500ms;

  /* — Layout — */
  --container-sm:          640px;
  --container-md:          768px;
  --container-lg:          1024px;
  --container-xl:          1280px;
  --container-2xl:         1440px;
}


/* ————————————————————————————————————————————————————————————
   2. RESET & BASE
   ———————————————————————————————————————————————————————————— */

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-regular);
  line-height: var(--leading-normal);
  color: var(--color-text-on-dark);
  background-color: var(--color-bg-dark);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-smooth);
}

a:hover {
  color: var(--futureman-yellow);
}


/* ————————————————————————————————————————————————————————————
   3. TYPOGRAPHY
   ———————————————————————————————————————————————————————————— */

/* — Headlines: Editorial Serif (the signature 24SA look) — */

h1, h2, h3, h4, h5, h6,
.heading {
  font-family: var(--font-serif);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: inherit;
}

h1, .h1 {
  font-size: var(--text-display);
  font-style: italic;
}

h2, .h2 {
  font-size: var(--text-5xl);
  font-style: italic;
}

h3, .h3 {
  font-size: var(--text-4xl);
}

h4, .h4 {
  font-size: var(--text-3xl);
}

h5, .h5 {
  font-size: var(--text-2xl);
}

h6, .h6 {
  font-size: var(--text-xl);
}

/* — Body & Small Text: Clean Sans-Serif — */

p {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.text-sm   { font-size: var(--text-sm); }
.text-xs   { font-size: var(--text-xs); }
.text-lg   { font-size: var(--text-lg); }
.text-xl   { font-size: var(--text-xl); }

/* — Eyebrow / Overline Label (used for "24 Seven Agencies" label above headlines) — */

.eyebrow,
.overline {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--gray-400);
}

/* — Italic Serif Accent (used for "Experience.", "Create.", "Perform.") — */

.serif-accent {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: var(--weight-regular);
}

/* — Underline Emphasis (used on key phrases like "integrated house of agencies") — */

.text-underline {
  text-decoration: underline;
  text-underline-offset: 0.15em;
  text-decoration-thickness: 2px;
}


/* ————————————————————————————————————————————————————————————
   4. LAYOUT
   ———————————————————————————————————————————————————————————— */

.container {
  width: 100%;
  max-width: var(--container-xl);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

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

.container--wide {
  max-width: var(--container-2xl);
}

.section {
  padding-block: var(--space-24);
}

.section--compact {
  padding-block: var(--space-16);
}

/* — Grid System — */

.grid {
  display: grid;
  gap: var(--space-6);
}

.grid--2col {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3col {
  grid-template-columns: repeat(3, 1fr);
}

.grid--4col {
  grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 768px) {
  .grid--2col,
  .grid--3col,
  .grid--4col {
    grid-template-columns: 1fr;
  }
}

/* — Flex Utilities — */

.flex        { display: flex; }
.flex-col    { flex-direction: column; }
.flex-wrap   { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-4       { gap: var(--space-4); }
.gap-6       { gap: var(--space-6); }
.gap-8       { gap: var(--space-8); }


/* ————————————————————————————————————————————————————————————
   5. THEME VARIANTS (Dark & Light)
   ———————————————————————————————————————————————————————————— */

/* — Dark Theme (default, the dominant look) — */

.theme-dark,
[data-theme="dark"] {
  background-color: var(--24sa-black);
  color: var(--24sa-cream);
}

/* — Light / Cream Theme (used for timeline slide, cards) — */

.theme-light,
[data-theme="light"] {
  background-color: var(--24sa-cream);
  color: var(--24sa-pure-black);
}

/* — Futureman Yellow Theme — */

.theme-futureman,
[data-theme="futureman"] {
  background-color: var(--futureman-yellow);
  color: var(--24sa-pure-black);
}

/* — SketchDeck Blue Theme — */

.theme-sketchdeck,
[data-theme="sketchdeck"] {
  background-color: var(--sketchdeck-blue);
  color: var(--24sa-pure-black);
}

/* — Markacy Orange Theme — */

.theme-markacy,
[data-theme="markacy"] {
  background-color: var(--markacy-orange);
  color: var(--24sa-pure-black);
}


/* ————————————————————————————————————————————————————————————
   6. COMPONENTS
   ———————————————————————————————————————————————————————————— */

/* — Card (used for value props, "What sets us apart" blocks) — */

.card {
  background-color: var(--24sa-pure-black);
  color: var(--24sa-cream);
  padding: var(--space-8) var(--space-6);
  border-radius: var(--radius-lg);
  transition: transform var(--duration-normal) var(--ease-smooth),
              box-shadow var(--duration-normal) var(--ease-smooth);
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.card--light {
  background-color: var(--24sa-warm-white);
  color: var(--24sa-pure-black);
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.card--yellow {
  background-color: var(--futureman-yellow);
  color: var(--24sa-pure-black);
}

.card--blue {
  background-color: var(--sketchdeck-blue);
  color: var(--24sa-pure-black);
}

.card--orange {
  background-color: var(--markacy-orange);
  color: var(--24sa-pure-black);
}

/* — Button — */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  padding: var(--space-3) var(--space-8);
  border: 2px solid transparent;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-smooth);
}

.btn--primary {
  background-color: var(--24sa-cream);
  color: var(--24sa-pure-black);
  border-color: var(--24sa-cream);
}

.btn--primary:hover {
  background-color: transparent;
  color: var(--24sa-cream);
}

.btn--outline {
  background-color: transparent;
  color: var(--24sa-cream);
  border-color: var(--24sa-cream);
}

.btn--outline:hover {
  background-color: var(--24sa-cream);
  color: var(--24sa-pure-black);
}

.btn--yellow {
  background-color: var(--futureman-yellow);
  color: var(--24sa-pure-black);
  border-color: var(--futureman-yellow);
}

.btn--yellow:hover {
  background-color: transparent;
  color: var(--futureman-yellow);
}

.btn--orange {
  background-color: var(--markacy-orange);
  color: var(--24sa-pure-black);
  border-color: var(--markacy-orange);
}

.btn--orange:hover {
  background-color: transparent;
  color: var(--markacy-orange);
}

/* — Navigation — */

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-6);
}

.nav__brand {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
}

.nav__brand span {
  font-family: var(--font-sans);
  font-weight: var(--weight-light);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  list-style: none;
}

.nav__link {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: currentColor;
  transition: width var(--duration-normal) var(--ease-smooth);
}

.nav__link:hover::after {
  width: 100%;
}

/* — Hero Section — */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-16);
  position: relative;
  overflow: hidden;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: var(--text-display);
  font-style: italic;
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  max-width: 18ch;
}

.hero__subtitle {
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  font-weight: var(--weight-regular);
  margin-top: var(--space-6);
  max-width: 50ch;
  opacity: 0.8;
}

/* — Divider (red/orange line separator used between sections) — */

.divider {
  width: 100%;
  height: 2px;
  background-color: var(--markacy-orange);
}

.divider--subtle {
  background-color: var(--gray-700);
}

/* — Logo Bar (for partner/client logos) — */

.logo-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-10);
  flex-wrap: wrap;
  padding: var(--space-8) 0;
}

.logo-bar img,
.logo-bar svg {
  height: 28px;
  width: auto;
  opacity: 0.7;
  transition: opacity var(--duration-fast) var(--ease-smooth);
  filter: grayscale(100%);
}

.logo-bar img:hover,
.logo-bar svg:hover {
  opacity: 1;
  filter: grayscale(0%);
}

/* — Agency Badge (Futureman / SketchDeck / Markacy labels) — */

.agency-badges {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-12);
}

.agency-badge {
  text-align: center;
}

.agency-badge__name {
  font-family: var(--font-sans);
  font-size: var(--text-lg);
  font-weight: var(--weight-black);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}

.agency-badge__tagline {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: var(--text-xl);
  margin-top: var(--space-2);
}

.agency-badge--futureman .agency-badge__tagline { color: var(--futureman-yellow); }
.agency-badge--sketchdeck .agency-badge__tagline { color: var(--24sa-cream); }
.agency-badge--markacy .agency-badge__tagline   { color: var(--markacy-orange); }

/* — Timeline / Process Bar — */

.timeline {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: relative;
}

.timeline__row {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.timeline__bar {
  height: 6px;
  border-radius: var(--radius-full);
  flex: 1;
}

.timeline__bar--yellow  { background-color: var(--futureman-yellow); }
.timeline__bar--blue    { background-color: var(--sketchdeck-blue); }
.timeline__bar--red     { background-color: var(--markacy-orange); }

/* — Footer — */

.footer {
  padding: var(--space-8) var(--space-6);
  text-align: center;
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  color: var(--gray-500);
  border-top: 1px solid var(--gray-800);
}


/* ————————————————————————————————————————————————————————————
   7. TEXTURE & EFFECTS
   ———————————————————————————————————————————————————————————— */

/* — Grainy Texture Overlay (matches the dark slides' grain effect) — */

.grain::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-size: 256px;
}

.grain {
  position: relative;
}

/* — Gradient Glow (the subtle light sweep on dark slides) — */

.glow {
  position: relative;
}

.glow::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80%;
  height: 80%;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    ellipse at center,
    rgba(240, 230, 214, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
}


/* ————————————————————————————————————————————————————————————
   8. UTILITY CLASSES
   ———————————————————————————————————————————————————————————— */

/* — Text Colors — */
.text-cream     { color: var(--24sa-cream); }
.text-black     { color: var(--24sa-pure-black); }
.text-yellow    { color: var(--futureman-yellow); }
.text-blue      { color: var(--sketchdeck-blue); }
.text-orange    { color: var(--markacy-orange); }
.text-muted     { color: var(--gray-500); }

/* — Background Colors — */
.bg-black       { background-color: var(--24sa-black); }
.bg-pure-black  { background-color: var(--24sa-pure-black); }
.bg-cream       { background-color: var(--24sa-cream); }
.bg-yellow      { background-color: var(--futureman-yellow); }
.bg-blue        { background-color: var(--sketchdeck-blue); }
.bg-orange      { background-color: var(--markacy-orange); }

/* — Text Alignment — */
.text-center    { text-align: center; }
.text-left      { text-align: left; }
.text-right     { text-align: right; }

/* — Font Families — */
.font-serif     { font-family: var(--font-serif); }
.font-sans      { font-family: var(--font-sans); }

/* — Font Styles — */
.italic         { font-style: italic; }
.uppercase      { text-transform: uppercase; }
.tracking-wide  { letter-spacing: var(--tracking-wide); }
.tracking-wider { letter-spacing: var(--tracking-wider); }

/* — Spacing — */
.mt-4  { margin-top: var(--space-4); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-8  { margin-bottom: var(--space-8); }
.p-4   { padding: var(--space-4); }
.p-6   { padding: var(--space-6); }
.p-8   { padding: var(--space-8); }

/* — Visibility — */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}


/* ————————————————————————————————————————————————————————————
   9. RESPONSIVE BREAKPOINTS
   ———————————————————————————————————————————————————————————— */

@media (max-width: 1024px) {
  .section {
    padding-block: var(--space-16);
  }

  .hero {
    min-height: 80vh;
    padding: var(--space-10);
  }

  .agency-badges {
    flex-direction: column;
    gap: var(--space-8);
  }
}

@media (max-width: 768px) {
  .section {
    padding-block: var(--space-12);
  }

  .hero {
    min-height: 70vh;
    padding: var(--space-6);
  }

  .hero__title {
    font-size: var(--text-4xl);
  }

  .nav {
    flex-direction: column;
    gap: var(--space-4);
  }

  .nav__links {
    gap: var(--space-4);
  }

  .logo-bar {
    gap: var(--space-6);
  }

  .logo-bar img,
  .logo-bar svg {
    height: 20px;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: var(--text-3xl);
  }

  .container {
    padding-inline: var(--space-4);
  }
}