/* ==========================================================================
   NexGen Labs — style.css
   Token sistem: warna, tipografi, spacing, radius
   ========================================================================== */

:root{
  /* warna dasar */
  --ink:            #0B1220;
  --ink-soft:       #131C31;
  --line-dark:      #263252;
  --paper:          #F6F7FB;
  --surface:        #FFFFFF;
  --line:           #E3E6EF;
  --text:           #14192B;
  --text-muted:     #5B6478;
  --text-inverse:   #ECEFF8;
  --text-inverse-muted: #9AA4C4;

  /* aksen */
  --accent:         #4C5BFF;
  --accent-dark:    #3A46D6;
  --accent-soft:    #E8E9FF;
  --success:        #1F9D6E;
  --success-soft:   #E4F6EE;
  --warn:           #C4531D;

  /* whatsapp */
  --wa:             #1FAA59;
  --wa-dark:        #17913F;

  /* tipografi */
  --font-display: 'Sora', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', 'SFMono-Regular', monospace;

  /* radius & bayangan */
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 10px 30px rgba(11, 18, 32, 0.08);
  --shadow-dark: 0 20px 45px rgba(0, 0, 0, 0.35);

  /* layout */
  --container-w: 1120px;
}

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

html{
  scroll-behavior: smooth;
}

body{
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  overflow-x: hidden;
}

h1, h2, h3{
  font-family: var(--font-display);
  color: var(--text);
  line-height: 1.2;
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

h1{ font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 700; }
h2{ font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 600; }
h3{ font-size: 1.15rem; font-weight: 600; }

p{ margin: 0 0 12px; color: var(--text-muted); max-width: 62ch; }

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

ul{ margin: 0; padding: 0; list-style: none; }

button{ font-family: inherit; }

.container{
  width: 100%;
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 20px;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 8px 0;
  z-index: 999;
}
.skip-link:focus{ left: 0; }

/* ==========================================================================
   Botones / CTA
   ========================================================================== */

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  min-height: 48px;
}
.btn:active{ transform: translateY(1px); }
.btn:focus-visible{
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary{
  background: var(--ink);
  color: #fff;
}
.btn-primary:hover{ background: var(--ink-soft); }

.btn-primary.btn-inverse{
  background: #fff;
  color: var(--ink);
}
.btn-primary.btn-inverse:hover{ background: var(--paper); }

.btn-whatsapp{
  background: var(--wa);
  color: #fff;
}
.btn-whatsapp:hover{ background: var(--wa-dark); }

.btn-header{
  padding: 10px 18px;
  min-height: 40px;
  font-size: 0.9rem;
}

.btn-block{ width: 100%; }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner{
  display: flex;
  align-items: center;
  gap: 20px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
}
.brand-mark{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--ink);
  color: #fff;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}
.brand-name{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
}

.main-nav{
  display: none;
  gap: 28px;
  align-items: center;
}
.main-nav a{
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-muted);
}
.main-nav a:hover{ color: var(--text); }

.nav-toggle{
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  align-items: center;
}
.nav-toggle span{
  width: 18px;
  height: 2px;
  background: var(--text);
  display: block;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.mobile-nav{
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: 8px 20px 20px;
  border-top: 1px solid var(--line);
}
.mobile-nav.is-open{ display: flex; }
.mobile-nav a{
  padding: 12px 4px;
  font-weight: 500;
  color: var(--text);
  border-bottom: 1px solid var(--line);
}
.mobile-nav .btn{ margin-top: 12px; }

@media (min-width: 900px){
  .main-nav{ display: flex; }
  .btn-header{ display: inline-flex; }
  .nav-toggle{ display: none; }
}
@media (max-width: 899px){
  .btn-header{ display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero{
  background: var(--paper);
  padding: 56px 0 64px;
  border-bottom: 1px solid var(--line);
}

.hero-grid{
  display: grid;
  gap: 40px;
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  margin: 0 0 14px;
  letter-spacing: 0.01em;
}

.hero-lead{ font-size: 1.05rem; }

.hero-actions{
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 16px;
}

.hero-note{
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}

.hero-panel{
  background: var(--ink);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-dark);
  overflow: hidden;
  border: 1px solid var(--line-dark);
}

.panel-bar{
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line-dark);
}
.panel-bar .dot{
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line-dark);
}
.panel-title{
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-inverse-muted);
}

.panel-body{ padding: 22px 20px; }

.panel-row{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 0;
  font-family: var(--font-mono);
}
.panel-label{
  color: var(--text-inverse-muted);
  font-size: 0.85rem;
}
.panel-value{
  color: var(--text-inverse);
  font-size: 1.4rem;
  font-weight: 500;
}
.panel-value-ok{ color: #5FE0A6; }

.panel-divider{
  height: 1px;
  background: var(--line-dark);
  margin: 6px 0;
}
.panel-row-muted{
  font-size: 0.8rem;
  color: var(--text-inverse-muted);
}

@media (min-width: 960px){
  .hero-grid{
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
  }
}

/* ==========================================================================
   Manfaat
   ========================================================================== */

.benefits{ padding: 64px 0; }

.benefits-grid{
  display: grid;
  gap: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.benefit-lead h2{ margin-bottom: 10px; }
.benefit-lead p{ margin: 0; }

.benefit{
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.benefit-index{
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.02rem;
  color: var(--text);
  margin-bottom: 8px;
}
.benefit p{ margin: 0; font-size: 0.95rem; }

@media (min-width: 900px){
  .benefits-grid{
    grid-template-columns: repeat(3, 1fr);
  }
  .benefit-lead{
    grid-column: 1 / -1;
    border-top: none;
    padding-top: 0;
  }
}

/* ==========================================================================
   Section umum
   ========================================================================== */

.section{ padding: 64px 0; }
.section-alt{ background: var(--paper); }
.section-dark{ background: var(--ink); }
.section-dark p{ color: var(--text-inverse-muted); }

.section-head{ max-width: 640px; margin-bottom: 36px; }
.section-head-inverse h2{ color: var(--text-inverse); }
.section-lead{ font-size: 0.98rem; }

/* ==========================================================================
   Filter & Katalog Tools
   ========================================================================== */

.filter-bar{
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}

.chip{
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.15s ease;
}
.chip:hover{ border-color: var(--accent); color: var(--text); }
.chip.is-active{
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}

.tool-grid{
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px){
  .tool-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px){
  .tool-grid{ grid-template-columns: repeat(3, 1fr); }
}

.tool-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: box-shadow 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}
.tool-card:hover{
  box-shadow: var(--shadow-soft);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.tool-card-top{
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
  gap: 10px;
}

.tool-category{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 4px 10px;
  border-radius: 999px;
  white-space: nowrap;
}

.tool-status{
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 4px 10px;
  border-radius: 999px;
}
.tool-status.aktif{ color: var(--success); background: var(--success-soft); }
.tool-status.uji-coba{ color: var(--warn); background: #FBEAE0; }

.tool-card h3{ margin: 0 0 8px; }
.tool-card p{ font-size: 0.92rem; margin: 0; }

.empty-state{
  text-align: center;
  padding: 40px 20px;
  color: var(--text-muted);
  border: 1px dashed var(--line);
  border-radius: var(--radius-md);
}

/* ==========================================================================
   Dashboard Monitoring
   ========================================================================== */

.stat-row{
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
  margin-bottom: 40px;
}
@media (min-width: 640px){
  .stat-row{ grid-template-columns: repeat(3, 1fr); }
}

.stat-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 22px;
}
.stat-label{
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.stat-number{
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
}

.usage-panel{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 26px;
}
.usage-panel h3{ margin-bottom: 20px; }

.usage-bars{ display: flex; flex-direction: column; gap: 16px; }

.usage-row{ display: flex; flex-direction: column; gap: 6px; }
.usage-row-top{
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
}
.usage-row-top span:last-child{ font-family: var(--font-mono); color: var(--text-muted); }

.usage-track{
  height: 8px;
  border-radius: 999px;
  background: var(--paper);
  overflow: hidden;
}
.usage-fill{
  height: 100%;
  border-radius: 999px;
  background: var(--accent);
}

/* ==========================================================================
   Dokumentasi (Accordion)
   ========================================================================== */

.accordion{
  border-top: 1px solid var(--line);
}

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

.accordion-trigger{
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: none;
  border: none;
  text-align: left;
  padding: 20px 4px;
  cursor: pointer;
}
.accordion-trigger h3{ margin: 0; font-size: 1rem; }
.accordion-trigger .plus{
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--accent);
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.accordion-item.is-open .plus{ transform: rotate(45deg); }

.accordion-panel{
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}
.accordion-item.is-open .accordion-panel{ max-height: 400px; }

.accordion-panel-inner{ padding: 0 4px 22px; }
.accordion-panel-inner p{ font-size: 0.92rem; margin-bottom: 10px; }
.accordion-panel-inner strong{ color: var(--text); }

/* ==========================================================================
   Tim
   ========================================================================== */

.team-grid{
  display: grid;
  gap: 16px;
  grid-template-columns: 1fr;
}
@media (min-width: 640px){
  .team-grid{ grid-template-columns: repeat(3, 1fr); }
}

.team-card{
  background: var(--ink-soft);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-md);
  padding: 22px;
}
.team-card-name{
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text-inverse);
  display: block;
  margin-bottom: 4px;
}
.team-card-role{
  font-size: 0.85rem;
  color: var(--accent);
  font-family: var(--font-mono);
  display: block;
  margin-bottom: 12px;
}
.team-card p{
  font-size: 0.88rem;
  margin: 0;
  color: var(--text-inverse-muted);
}

/* ==========================================================================
   Dukungan / Form
   ========================================================================== */

.support-grid{
  display: grid;
  gap: 40px;
}
@media (min-width: 960px){
  .support-grid{ grid-template-columns: 1fr 1fr; align-items: start; }
}

.support-list{ margin-top: 18px; display: flex; flex-direction: column; gap: 10px; }
.support-list li{
  font-size: 0.9rem;
  color: var(--text-muted);
  padding-left: 18px;
  position: relative;
}
.support-list li::before{
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.support-form{
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
}

.form-field{ margin-bottom: 18px; }
.form-field label{
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.form-field input,
.form-field textarea{
  width: 100%;
  padding: 13px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  resize: vertical;
}
.form-field input:focus,
.form-field textarea:focus{
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-field.has-error input,
.form-field.has-error textarea{
  border-color: var(--warn);
}
.field-error{
  display: block;
  font-size: 0.8rem;
  color: var(--warn);
  margin-top: 6px;
  min-height: 1em;
}

.form-success{
  margin-top: 16px;
  padding: 14px 16px;
  background: var(--success-soft);
  color: var(--success);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
}

/* ==========================================================================
   CTA Akhir
   ========================================================================== */

.final-cta{
  background: var(--ink);
  padding: 64px 0;
}
.final-cta-inner{
  text-align: center;
  max-width: 560px;
  margin: 0 auto;
}
.final-cta h2{ color: var(--text-inverse); }
.final-cta p{ color: var(--text-inverse-muted); margin: 0 auto 24px; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer{
  padding: 32px 0;
  border-top: 1px solid var(--line);
}
.footer-inner{
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.footer-inner p{
  font-size: 0.85rem;
  margin: 0;
}

/* ==========================================================================
   Aksesibilitas — reduced motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce){
  *{ animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}