/* ==========================================================================
   WEBSIDEUP — UNIFIED DESIGN SYSTEM
   Editorial Warm Paper Atmosphere (#F7F7F6) + WEBSIDEUP Orange + Deep Navy Accent
   Single Connected Website Architecture
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@600;700;800;900&display=swap');

/* --------------------------------------------------------------------------
   1. COLOR SYSTEM & ATMOSPHERE TOKENS
   - Warm Paper Background (#F7F7F6)
   - Dominant Brand Typography: WEBSIDEUP Orange (#FF5A1F)
   - Accent & Structure: Deep Midnight Navy (#081522)
   - Hairline Lines: (#E4E7EC)
   -------------------------------------------------------------------------- */
:root {
  /* Primary Warm Paper Canvas Background */
  --c-bg:          #F7F7F6;   /* Exact warm paper / soft off-white */
  --paper:         #F7F7F6;   /* Editorial warm atmosphere */
  --c-surface:     #FFFFFF;   /* Pure white card surface */
  --c-surface-2:   #EFEFED;   /* Subtle elevated surface */
  --c-surface-3:   #E5E5E2;   /* Structural container */

  /* WEBSIDEUP Signature Orange */
  --orange:        #FF5A1F;   /* Official WEBSIDEUP Orange */
  --orange-hover:  #FF7438;
  --c-orange:      #FF5A1F;
  --c-orange-dim:  rgba(255, 90, 31, 0.08);
  --c-orange-glow: rgba(255, 90, 31, 0.25);

  /* Deep Midnight Navy */
  --ink:           #081522;   /* Deep Midnight Navy */
  --ink2:          #102337;   /* Secondary deep tone */
  --ink-muted:     #6E7885;   /* Editorial muted grey-navy */
  --ink-dim:       #9DA9B5;   /* Meta & label tone */
  --c-high:        #FF5A1F;   /* Primary dominant headlines in Orange */
  --c-navy:        #081522;   /* Accent Navy */
  --c-muted:       #6E7885;   /* Readable body copy */
  --c-dim:         #9DA9B5;   /* Subtle structural navy */
  --c-white:       #FFFFFF;

  /* Subtle Lines & Hairline Borders */
  --line:          #E4E7EC;   /* Clean subtle line */
  --line-strong:   rgba(8, 21, 34, 0.18);
  --c-border:      #E4E7EC;
  --c-border-m:    rgba(8, 21, 34, 0.18);
  --shadow:        0 20px 60px rgba(8, 21, 34, 0.06);

  /* Typography Stack */
  --f-display:     'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --f-sans:        'DM Sans', Arial, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --f-mono:        ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Layout & Sizing */
  --max-w:         1260px;
  --gutter:        clamp(1.25rem, 4.5vw, 3.5rem);
  --header-h:      100px;
  --header-h-scroll: 80px;
  
  --nav-bg:        rgba(247, 247, 246, 0.92);
  --nav-bg-scrolled: rgba(247, 247, 246, 0.98);

  /* Motion Curves */
  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:   cubic-bezier(0.65, 0, 0.35, 1);
}

/* --------------------------------------------------------------------------
   DARK MODE OVERRIDES
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
  --c-bg:          #060c13;
  --paper:         #060c13;
  --c-surface:     #0c1520;
  --c-surface-2:   #121d2b;
  --c-surface-3:   #1a2839;

  --ink:           #F7F7F6;
  --ink2:          #D9E1EB;
  --ink-muted:     #9DA9B5;
  --ink-dim:       #6E7885;
  
  --c-high:        #FF5A1F;
  --c-navy:        #F7F7F6;
  --c-muted:       #9DA9B5;
  --c-dim:         #6E7885;
  
  --line:          rgba(255, 255, 255, 0.08);
  --line-strong:   rgba(255, 255, 255, 0.15);
  --c-border:      rgba(255, 255, 255, 0.08);
  --c-border-m:    rgba(255, 255, 255, 0.15);
  --shadow:        0 20px 60px rgba(0, 0, 0, 0.5);

  --nav-bg:        rgba(6, 12, 19, 0.92);
  --nav-bg-scrolled: rgba(6, 12, 19, 0.98);
}

[data-theme="dark"] .nav-logo img {
  content: url('assets/logos/logo-light.png');
}

/* --------------------------------------------------------------------------
   2. RESET & BASE
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--c-bg);
  color: var(--ink);
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease-out), color 0.4s var(--ease-out);
}

body {
  font-family: var(--f-sans);
  background: var(--c-bg);
  color: var(--ink);
  min-height: 100svh;
  overflow-x: hidden;
  line-height: 1.65;
  cursor: auto;
  position: relative;
  letter-spacing: -0.01em;
  transition: background-color 0.4s var(--ease-out), color 0.4s var(--ease-out);
}

body.has-custom-cursor {
  cursor: none;
}

@media (pointer: coarse) {
  body, body.has-custom-cursor {
    cursor: auto !important;
  }
}

a, button {
  touch-action: manipulation;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

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

button {
  border: none;
  background: none;
  font: inherit;
  cursor: pointer;
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   3. SCROLL PROGRESS
   -------------------------------------------------------------------------- */
#scrollProgress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: var(--orange);
  z-index: 9999;
  pointer-events: none;
  transition: width 0.1s linear;
}

/* --------------------------------------------------------------------------
   4. MINIMAL CUSTOM CURSOR (Desktop Only)
   -------------------------------------------------------------------------- */
#cursor {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--orange);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
  transition: width 0.2s var(--ease-out),
              height 0.2s var(--ease-out),
              background 0.18s ease,
              border-color 0.18s ease,
              opacity 0.2s ease;
  will-change: transform;
  display: none;
}

body.has-custom-cursor #cursor {
  display: flex;
  align-items: center;
  justify-content: center;
}

#cursor.cursor-hover {
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1.5px solid var(--orange);
}

#cursor.cursor-view,
#cursor.cursor-play {
  width: 76px;
  height: 76px;
  background: rgba(247, 247, 246, 0.96);
  border: 1.5px solid var(--orange);
  box-shadow: 0 10px 32px rgba(8, 21, 34, 0.12);
}

#cursor.cursor-view::after {
  content: 'VIEW ↗';
  font-family: var(--f-sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--orange);
  white-space: nowrap;
}

#cursor.cursor-play::after {
  content: 'PLAY ▶';
  font-family: var(--f-sans);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--orange);
  white-space: nowrap;
}

/* --------------------------------------------------------------------------
   5. CONTAINER & SECTION RHYTHM
   -------------------------------------------------------------------------- */
.container {
  width: min(var(--max-w), calc(100% - var(--gutter) * 2));
  margin: 0 auto;
}

.section {
  padding: clamp(5rem, 8.5vw, 8rem) 0;
  position: relative;
}

.hr-thin {
  border: none;
  border-top: 1px solid var(--line);
  margin: 0;
}

/* --------------------------------------------------------------------------
   6. TYPOGRAPHY SYSTEM (Manrope + DM Sans)
   -------------------------------------------------------------------------- */
.type-display {
  font-family: var(--f-display);
  font-size: clamp(3.2rem, 7.8vw, 7rem);
  font-weight: 900;
  line-height: 0.96;
  letter-spacing: -2.5px;
  color: var(--orange);
  text-transform: uppercase;
}

.type-headline {
  font-family: var(--f-display);
  font-size: clamp(2.4rem, 5vw, 4.8rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -2px;
  color: var(--orange);
  text-transform: uppercase;
}

.type-heading {
  font-family: var(--f-display);
  font-size: clamp(1.6rem, 3vw, 2.6rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -1px;
  color: var(--ink);
}

.type-body {
  font-family: var(--f-sans);
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.7;
  color: var(--ink-muted);
  font-weight: 400;
  max-width: 56ch;
}

.type-meta {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.eyebrow {
  font-family: var(--f-display);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--orange);
  display: inline-block;
  margin-bottom: 0.75rem;
}

.accent {
  color: var(--orange);
  font-style: normal;
}

.accent-navy {
  color: var(--ink);
  font-style: normal;
}

/* System descriptor line for disciplines */
.disciplines-engine {
  font-family: var(--f-mono);
  font-size: clamp(0.72rem, 0.95vw, 0.82rem);
  font-weight: 800;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink);
  margin-top: 0.75rem;
  display: block;
}

/* --------------------------------------------------------------------------
   7. NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  z-index: 900;
  display: flex;
  align-items: center;
  transition: background 0.35s ease, border-color 0.35s ease, height 0.35s var(--ease-out), box-shadow 0.35s ease;
  background: var(--nav-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.site-header.scrolled {
  background: var(--nav-bg-scrolled);
  height: var(--header-h-scroll);
  box-shadow: 0 10px 30px rgba(8, 21, 34, 0.05);
}

.nav-inner {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* WEBSIDEUP LOGO */
.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  padding: 0.25rem 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav-logo:hover {
  opacity: 0.88;
  transform: translateY(-1px);
}

.nav-logo img {
  height: clamp(65px, 8vw, 90px);
  width: auto;
  display: block;
  transform: scale(2.4);
  transform-origin: left center;
  transition: height 0.3s var(--ease-out), transform 0.3s ease;
}

.site-header.scrolled .nav-logo img {
  height: clamp(50px, 6vw, 65px);
  transform: scale(2.0);
}

@media (max-width: 1024px) {
  .nav-logo img {
    height: clamp(45px, 6vw, 60px);
    transform: scale(2.0);
  }
  .site-header.scrolled .nav-logo img {
    height: clamp(40px, 5vw, 50px);
    transform: scale(1.6);
  }
}

@media (max-width: 640px) {
  .nav-logo img {
    height: clamp(38px, 5vw, 45px);
    transform: scale(1.8);
  }
  .site-header.scrolled .nav-logo img {
    height: clamp(32px, 4vw, 40px);
    transform: scale(1.5);
  }
}

/* 4 Clean Navigation Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-link {
  font-family: var(--f-sans);
  font-size: 0.938rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  transition: color 0.2s ease;
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--orange);
  border-radius: 9px;
  transition: width 0.25s var(--ease-out);
}

.nav-link:hover,
.nav-link.active {
  color: var(--orange);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 22px;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.theme-toggle {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
  border-radius: 50%;
  transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.theme-toggle:hover {
  background: rgba(100, 100, 100, 0.1);
  transform: scale(1.05);
  color: var(--orange);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 11px 22px;
  border-radius: 999px;
  font-family: var(--f-sans);
  font-size: 0.813rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #FFFFFF;
  background: var(--orange);
  box-shadow: 0 8px 22px rgba(255, 90, 31, 0.25);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(255, 90, 31, 0.35);
  background: var(--orange-hover);
}

/* Mobile Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 26px;
  height: 18px;
  cursor: pointer;
  background: transparent;
  border: none;
  padding: 0;
  flex-shrink: 0;
  z-index: 950;
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform 0.3s var(--ease-out), opacity 0.25s ease;
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  background: var(--paper);
  z-index: 850;
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-h) + 1.5rem) var(--gutter) 2.5rem;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
  visibility: hidden;
  overflow-y: auto;
}

.mobile-drawer.open {
  transform: translateX(0);
  visibility: visible;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: auto;
}

.mobile-nav-link {
  font-family: var(--f-display);
  font-size: clamp(2rem, 8vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -1px;
  text-transform: uppercase;
  color: var(--ink);
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--line);
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--orange);
  padding-left: 0.5rem;
}

.mobile-nav-meta {
  padding-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #FFFFFF;
  padding: 13px 26px;
  background: var(--orange);
  border-radius: 999px;
  margin-top: 1rem;
  align-self: flex-start;
  box-shadow: 0 10px 25px rgba(255, 90, 31, 0.25);
}

/* --------------------------------------------------------------------------
   8. BUTTONS (PILL-SHAPED RESTRAINED ACCENTS)
   -------------------------------------------------------------------------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 13px 28px;
  background: var(--orange);
  color: #FFFFFF;
  font-family: var(--f-sans);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid transparent;
  box-shadow: 0 10px 28px rgba(255, 90, 31, 0.25);
  transition: transform 0.25s var(--ease-out), box-shadow 0.25s ease, background 0.2s ease;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  background: var(--orange-hover);
  box-shadow: 0 14px 32px rgba(255, 90, 31, 0.35);
}

.btn-secondary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 12px 26px;
  border: 1.5px solid var(--ink);
  color: var(--ink);
  font-family: var(--f-sans);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  background: transparent;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, transform 0.2s ease;
  cursor: pointer;
}

.btn-secondary:hover,
.btn-ghost:hover {
  border-color: var(--orange);
  color: var(--orange);
  background: var(--c-orange-dim);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   9. REVEALS & MOTION
   -------------------------------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  will-change: opacity, transform;
}

.reveal.in-view {
  animation: reveal-in 0.75s var(--ease-out) forwards;
}

@keyframes reveal-in {
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

body.page-loaded .reveal-on-load {
  animation: reveal-in 0.85s var(--ease-out) forwards;
}

/* --------------------------------------------------------------------------
   10. SITE FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 5rem 0 2.5rem;
  background: var(--ink);
  color: #FFFFFF;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.1fr);
  gap: 3.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 2.5rem;
}

.footer-brand-mark {
  height: 42px;
  width: auto;
  margin-bottom: 1.25rem;
}

.footer-tagline {
  font-size: 0.90rem;
  color: #9DA9B5;
  max-width: 32ch;
  line-height: 1.65;
}

.footer-col-label {
  font-family: var(--f-display);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
}

.footer-col a, .footer-col p {
  display: block;
  font-size: 0.90rem;
  color: #9DA9B5;
  margin-bottom: 0.65rem;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--orange);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.813rem;
  color: #6E7885;
}

.footer-back-top {
  font-size: 0.813rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #9DA9B5;
  transition: color 0.2s ease;
}

.footer-back-top:hover {
  color: var(--orange);
}

/* --------------------------------------------------------------------------
   11. RESPONSIVE BREAKPOINTS
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

@media (max-width: 640px) {
  .nav-cta { display: none; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 1rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
  #cursor { display: none !important; }
}

::selection {
  background: var(--orange);
  color: #FFFFFF;
}