/* ====================================
   ATMETRYX — Athletic Brutalist v1
   Studio FP24 · Mai 2026
   ==================================== */

:root{
  /* Colors */
  --black: #0a0a0a;
  --ink: #161616;
  --void: #050505;
  --paper: #ffffff;
  --bone: #f5f5f0;
  --blood: #ff2e2e;
  --blood-bright: #ff4848;
  --blood-deep: #d92020;
  --steel: #999999;
  --steel-light: #cccccc;
  --line: #262626;
  --line-light: #1a1a1a;

  /* Type */
  --display: 'Chakra Petch', system-ui, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Spacing */
  --gutter: 24px;
  --wrap-max: 1200px;

  /* Transitions */
  --t-fast: 0.15s;
  --t-base: 0.25s;
  --t-slow: 0.5s;
}

/* ====================================
   RESET + BASE
   ==================================== */

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

html{
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body{
  background: var(--black);
  color: var(--paper);
  font-family: var(--mono);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img{ max-width: 100%; display: block; }
button{ cursor: pointer; border: none; background: none; color: inherit; font: inherit; }
a{ color: inherit; text-decoration: none; }

.wrap{
  width: 100%;
  max-width: var(--wrap-max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* ====================================
   BRAND MARK
   ==================================== */

.brand-mark{
  font-family: var(--display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.02em;
  line-height: 1;
  display: inline-flex;
  align-items: baseline;
}
.brand-mark .at,
.brand-mark .yx{
  color: var(--blood);
  text-transform: uppercase;
}
.brand-mark .metr{
  color: var(--paper);
  text-transform: lowercase;
}
.brand-mark-lg{ font-size: 36px; }

/* ====================================
   HEADER
   ==================================== */

.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap{
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.header-right{
  display: flex;
  align-items: center;
  gap: 24px;
}
.site-nav{
  display: flex;
  gap: 28px;
}
.site-nav a{
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steel);
  transition: color var(--t-fast);
}
.site-nav a:hover{ color: var(--blood); }

/* Language toggle */
.lang-toggle{
  display: flex;
  gap: 0;
  border: 1px solid var(--line);
}
.lang-btn{
  padding: 6px 10px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--steel);
  background: var(--black);
  transition: all var(--t-fast);
  border-right: 1px solid var(--line);
  cursor: pointer;
}
.lang-btn:last-child{ border-right: none; }
.lang-btn:hover{
  color: var(--paper);
  background: var(--ink);
}
.lang-btn.active{
  background: var(--blood);
  color: var(--black);
  border-color: var(--blood);
}

@media (max-width: 800px){
  .site-nav{ display: none; }
  .header-right{ gap: 12px; }
}
@media (max-width: 640px){
  .brand-mark{ font-size: 18px; }
  .lang-btn{ font-size: 10px; padding: 5px 8px; }
}

/* ====================================
   HERO
   ==================================== */

.hero{
  position: relative;
  padding: 100px 0 80px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.hero::before{
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255,46,46,0.08) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
}
.hero .wrap{ position: relative; z-index: 1; }

.hero-tag{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--blood);
  text-transform: uppercase;
  margin-bottom: 32px;
  opacity: 0;
  animation: fade-up 0.6s ease-out 0.1s forwards;
}

.hero-h1{
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(48px, 9vw, 120px);
  letter-spacing: -0.03em;
  line-height: 0.95;
  margin-bottom: 32px;
}
.hero-h1 .line{
  display: block;
  opacity: 0;
  animation: fade-up 0.7s ease-out forwards;
}
.hero-h1 .line:nth-child(1){ animation-delay: 0.2s; }
.hero-h1 .line:nth-child(2){ animation-delay: 0.35s; }
.hero-h1 .line:nth-child(3){ animation-delay: 0.5s; }
.hero-h1 .red{ color: var(--blood); }

.hero-sub{
  font-family: var(--mono);
  font-size: 17px;
  line-height: 1.6;
  color: var(--steel-light);
  max-width: 580px;
  margin-bottom: 40px;
  opacity: 0;
  animation: fade-up 0.7s ease-out 0.65s forwards;
}
.hero-sub strong{ color: var(--paper); font-weight: 500; }

.hero-cta{
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 80px;
  opacity: 0;
  animation: fade-up 0.7s ease-out 0.8s forwards;
}

.hero-stats{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 40px;
  border-top: 1px solid var(--line);
  opacity: 0;
  animation: fade-up 0.7s ease-out 0.95s forwards;
}
.stat-value{
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 56px);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--paper);
  margin-bottom: 8px;
}
.stat-label{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--steel);
  text-transform: uppercase;
}

@media (max-width: 640px){
  .hero{ padding: 60px 0 50px; }
  .hero-stats{ grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .hero-cta{ flex-direction: column; }
  .hero-cta .btn{ width: 100%; text-align: center; }
}

/* ====================================
   BUTTONS
   ==================================== */

.btn{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 28px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--t-base);
  border: 1px solid transparent;
}
.btn-primary{
  background: var(--blood);
  color: var(--black);
}
.btn-primary:hover{
  background: var(--blood-bright);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,46,46,0.3);
}
.btn-ghost{
  background: transparent;
  color: var(--paper);
  border-color: var(--paper);
}
.btn-ghost:hover{
  background: var(--paper);
  color: var(--black);
}

/* ====================================
   MOTIF BAND
   ==================================== */

.motif-band{
  background: var(--blood);
  overflow: hidden;
  padding: 24px 0;
  border-top: 2px solid var(--paper);
  border-bottom: 2px solid var(--paper);
  white-space: nowrap;
}
.motif-track{
  display: inline-flex;
  gap: 60px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 36px;
  letter-spacing: -0.02em;
  color: var(--black);
  text-transform: uppercase;
  animation: scroll-x 30s linear infinite;
}
.motif-track span{
  display: inline-block;
  position: relative;
}
.motif-track span::after{
  content: '×';
  margin-left: 60px;
  color: var(--paper);
}

@keyframes scroll-x{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

/* ====================================
   SECTION COMMON
   ==================================== */

section{ padding: 100px 0; }
.section-num{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--blood);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title{
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(36px, 5vw, 64px);
  letter-spacing: -0.02em;
  line-height: 0.95;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.section-title .red{ color: var(--blood); }
.section-intro{
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.6;
  color: var(--steel-light);
  max-width: 620px;
  margin-bottom: 60px;
}

@media (max-width: 640px){
  section{ padding: 60px 0; }
  .section-intro{ margin-bottom: 40px; }
}

/* ====================================
   SIMULATOR
   ==================================== */

.simulator{ border-bottom: 1px solid var(--line); }

.sim-controls{
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 40px;
  margin-bottom: 60px;
  padding: 32px;
  background: var(--ink);
  border: 1px solid var(--line);
}

.control-label{
  display: block;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--blood);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.radio-group{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.radio-btn{
  flex: 1;
  min-width: 110px;
  padding: 16px 20px;
  background: var(--black);
  border: 1px solid var(--line);
  color: var(--steel);
  font-family: var(--display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  text-align: center;
  transition: all var(--t-base);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.radio-btn .cat-name{
  font-size: 16px;
  letter-spacing: 0.1em;
}
.radio-btn .cat-desc{
  font-family: var(--mono);
  font-weight: 400;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: none;
  color: var(--steel);
  margin-top: 4px;
}
.radio-btn:hover{
  border-color: var(--steel);
  color: var(--paper);
}
.radio-btn.active{
  background: var(--blood);
  border-color: var(--blood);
  color: var(--black);
}
.radio-btn.active .cat-desc{ color: rgba(0,0,0,0.7); }

@media (max-width: 800px){
  .sim-controls{ grid-template-columns: 1fr; gap: 24px; padding: 24px; }
}

/* ====================================
   TIMELINE
   ==================================== */

.timeline-block{
  background: var(--ink);
  border: 1px solid var(--line);
  padding: 32px;
  margin-bottom: 40px;
}

.timeline-header{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}
.timeline-tag{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--blood);
  text-transform: uppercase;
}
.timeline-meta{
  font-family: var(--display);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--paper);
}

.timeline{
  display: flex;
  height: 80px;
  gap: 2px;
  margin-bottom: 16px;
  position: relative;
}
.timeline-zone{
  position: relative;
  cursor: pointer;
  transition: transform var(--t-base);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.timeline-zone:hover{ transform: translateY(-4px); }
.timeline-zone-label{
  position: absolute;
  bottom: 8px;
  left: 8px;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  z-index: 2;
}
.timeline-zone-duration{
  position: absolute;
  top: 8px;
  right: 8px;
  font-family: var(--display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.05em;
  z-index: 2;
}

/* Zone colors */
.zone-warm{ background: #2a2a2a; color: var(--steel-light); }
.zone-strength{ background: var(--blood); color: var(--black); }
.zone-refuel{ background: #1f1f1f; color: var(--steel-light); border-top: 2px dashed var(--blood); }
.zone-endurance{ background: var(--paper); color: var(--black); }
.zone-recovery{ background: #1f1f1f; color: var(--steel-light); border-top: 2px dashed var(--blood); }
.zone-metcon{ background: var(--blood-deep); color: var(--paper); }

.timeline-legend{
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--steel);
  letter-spacing: 0.05em;
}
.timeline-legend > span{
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.dot{
  display: inline-block;
  width: 12px;
  height: 12px;
  vertical-align: middle;
  flex-shrink: 0;
}
.dot-warm{ background: #2a2a2a; }
.dot-strength{ background: var(--blood); }
.dot-refuel{ background: #1f1f1f; border-top: 2px solid var(--blood); }
.dot-endurance{ background: var(--paper); }
.dot-recovery{ background: #1f1f1f; border-top: 2px solid var(--blood); }
.dot-metcon{ background: var(--blood-deep); }

@media (max-width: 640px){
  .timeline{ height: 60px; }
  .timeline-zone-label{ font-size: 8px; }
  .timeline-zone-duration{ font-size: 10px; }
}

/* ====================================
   ZONES GRID
   ==================================== */

.zones-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 60px;
}

.zone-card{
  background: var(--ink);
  border: 1px solid var(--line);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color var(--t-base);
}
.zone-card:hover{ border-color: var(--blood); }

.zone-card-header{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: 1px solid var(--line);
  padding-bottom: 16px;
}
.zone-card-num{
  font-family: var(--display);
  font-weight: 700;
  font-size: 48px;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--blood);
}
.zone-card-duration{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--steel);
  text-transform: uppercase;
}

.zone-card-name{
  font-family: var(--display);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  line-height: 1.1;
}

.zone-card-desc{
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel-light);
}

.zone-card-objectives{
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}
.zone-card-obj-label{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--blood);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.zone-card-obj-list{
  list-style: none;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.7;
  color: var(--paper);
}
.zone-card-obj-list li{
  padding-left: 16px;
  position: relative;
}
.zone-card-obj-list li::before{
  content: '→';
  position: absolute;
  left: 0;
  color: var(--blood);
  font-weight: 700;
}

@media (max-width: 700px){
  .zones-grid{ grid-template-columns: 1fr; }
}

/* ====================================
   CAPTURE EMAIL
   ==================================== */

.capture{
  background: var(--blood);
  color: var(--black);
  padding: 60px 40px;
  position: relative;
  overflow: hidden;
}
.capture::before{
  content: '';
  position: absolute;
  top: -50px;
  right: -50px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0,0,0,0.1) 0%, transparent 60%);
}
.capture-inner{ position: relative; max-width: 600px; }
.capture-tag{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.capture-h3{
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.02em;
  line-height: 1;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.capture-h3 .red{ color: var(--paper); }
.capture-p{
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 32px;
  font-weight: 500;
}

.capture-form{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.capture-form input{
  flex: 1;
  min-width: 240px;
  padding: 16px 20px;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 14px;
  border: 2px solid var(--black);
  background: var(--paper);
  color: var(--black);
  outline: none;
  transition: all var(--t-base);
}
.capture-form input:focus{ background: var(--bone); }
.capture-form button{
  background: var(--black);
  color: var(--blood);
  border: 2px solid var(--black);
}
.capture-form button:hover{ background: var(--paper); color: var(--black); }

.capture-meta{
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

@media (max-width: 640px){
  .capture{ padding: 40px 24px; }
}

/* ====================================
   FORMAT SECTION
   ==================================== */

.format{ background: var(--ink); border-bottom: 1px solid var(--line); }

.comparison{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  background: var(--paper);
  margin-bottom: 60px;
}
.comp-cell{
  background: var(--black);
  padding: 40px 32px;
}
.comp-tag{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--blood);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.comp-h3{
  font-family: var(--display);
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: 8px;
  line-height: 1;
}
.comp-spec{
  font-family: var(--mono);
  font-weight: 500;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--steel);
  margin-bottom: 24px;
}
.comp-list{
  list-style: none;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
  color: var(--paper);
}
.comp-list li{
  padding: 8px 0 8px 20px;
  position: relative;
  border-bottom: 1px solid var(--line);
}
.comp-list li:last-child{ border-bottom: none; }
.comp-list li::before{
  content: '·';
  position: absolute;
  left: 0;
  color: var(--blood);
  font-weight: 700;
  font-size: 20px;
  line-height: 1;
}
.comp-list strong{ color: var(--blood); font-weight: 600; }

@media (max-width: 800px){
  .comparison{ grid-template-columns: 1fr; }
}

.format-info{
  background: var(--black);
  border: 1px solid var(--line);
  padding: 40px;
}
.format-h3{
  font-family: var(--display);
  font-weight: 700;
  font-size: 24px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.format-info p{
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
  color: var(--steel-light);
  margin-bottom: 16px;
}
.format-info p:last-child{ margin-bottom: 0; }
.format-info strong{ color: var(--paper); font-weight: 500; }

/* ====================================
   NEWSLETTER
   ==================================== */

.newsletter{ border-bottom: 1px solid var(--line); }

.newsletter-form{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  max-width: 540px;
  margin-bottom: 16px;
}
.newsletter-form input{
  flex: 1;
  min-width: 240px;
  padding: 16px 20px;
  font-family: var(--mono);
  font-weight: 500;
  font-size: 14px;
  background: var(--ink);
  border: 1px solid var(--line);
  color: var(--paper);
  outline: none;
  transition: border-color var(--t-base);
}
.newsletter-form input::placeholder{ color: var(--steel); }
.newsletter-form input:focus{ border-color: var(--blood); }

.newsletter-meta{
  font-family: var(--mono);
  font-size: 12px;
  color: var(--steel);
}
.newsletter-meta .link{ color: var(--paper); text-decoration: underline; text-decoration-color: var(--blood); }

/* ====================================
   FOOTER
   ==================================== */

.site-footer{
  background: var(--void);
  padding: 80px 0 40px;
  border-top: 2px solid var(--blood);
}

.footer-grid{
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 60px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line);
}

.footer-brand .brand-mark-lg{ margin-bottom: 12px; }
.footer-tagline{
  font-family: var(--mono);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.4em;
  color: var(--steel);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.footer-desc{
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.6;
  color: var(--steel);
  max-width: 320px;
}

.footer-col h4{
  font-family: var(--display);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--blood);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.footer-col a{
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--steel-light);
  padding: 6px 0;
  transition: color var(--t-fast);
}
.footer-col a:hover{ color: var(--blood); }
.footer-col a.soon{
  color: var(--steel);
  cursor: not-allowed;
}
.soon-tag{
  display: inline-block;
  margin-left: 6px;
  padding: 2px 6px;
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  background: var(--line);
  color: var(--steel);
}

.footer-bottom{
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-bottom p{
  font-family: var(--mono);
  font-size: 11px;
  color: var(--steel);
  letter-spacing: 0.02em;
}

@media (max-width: 800px){
  .footer-grid{ grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-brand{ grid-column: 1 / -1; }
}
@media (max-width: 480px){
  .footer-grid{ grid-template-columns: 1fr; }
}

/* ====================================
   ANIMATIONS
   ==================================== */

@keyframes fade-up{
  from{ opacity: 0; transform: translateY(20px); }
  to{ opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .motif-track{ animation: none; }
}