/* ==========================================================
   BINGKAIKU — Campaign Frame Maker
   Design tokens
   ========================================================== */
:root{
  --c-teal-deep:   #006885;
  --c-teal-bright: #00AAAD;
  --c-orange:      #F15A22;
  --c-amber:       #F99D1F;

  --ink:        #0B2B33;
  --ink-soft:   #4F6A70;
  --paper:      #FAFAF7;
  --paper-2:    #FFFFFF;
  --line:       #E4E9E7;

  --brand-gradient: linear-gradient(90deg, var(--c-teal-deep) 0%, var(--c-teal-bright) 38%, var(--c-amber) 72%, var(--c-orange) 100%);

  --font-display: "Baloo 2", ui-rounded, "Segoe UI", sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-1: 0 2px 10px rgba(11,43,51,0.06);
  --shadow-2: 0 12px 32px rgba(11,43,51,0.14);

  --header-h: 64px;
  --downloadbar-h: 78px;
}

*{ box-sizing: border-box; }
html{ -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body{
  margin:0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
  padding-bottom: calc(var(--downloadbar-h) + 18px);
}
img{ max-width:100%; display:block; }
h1,h2,h3{ font-family: var(--font-display); margin:0; color: var(--ink); }
p{ margin:0; }
a{ color: inherit; }
button{ font-family: inherit; }
:focus-visible{ outline: 3px solid var(--c-teal-bright); outline-offset: 2px; }

/* ==========================================================
   HEADER
   ========================================================== */
.site-header{
  position: sticky;
  top:0;
  z-index: 50;
  height: var(--header-h);
  background: rgba(250,250,247,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  max-width: 1120px;
  margin: 0 auto;
  height: 100%;
  padding: 0 18px;
  display:flex;
  align-items:center;
  justify-content: space-between;
}
.brand{ display:flex; align-items:center; gap:8px; }
.brand-name{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--c-teal-deep);
}
.header-logo img{
  height: 40px;
  width: auto;
  object-fit: contain;
}

/* ==========================================================
   HERO
   ========================================================== */
.hero{
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 28px;
  text-align: center;
}
.eyebrow{
  display:inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-orange);
  background: #FEEEE6;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.hero h1{
  font-size: clamp(1.9rem, 6vw, 2.7rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.01em;
}
.hero-desc{
  display:block;
  margin: 14px auto 0;
  max-width: 46ch;
  color: var(--ink-soft);
  font-size: 1rem;
}
.brand-bar{
  height: 5px;
  width: 96px;
  margin: 24px auto 0;
  border-radius: 999px;
  background: var(--brand-gradient);
}

/* ==========================================================
   SECTION SHELL
   ========================================================== */
.section{
  max-width: 720px;
  margin: 0 auto;
  padding: 30px 20px;
}
.section-head{
  display:flex;
  align-items:flex-start;
  gap: 12px;
  margin-bottom: 18px;
}
.step-badge{
  flex:none;
  width: 30px; height:30px;
  border-radius: 50%;
  background: var(--c-teal-deep);
  color:#fff;
  font-family: var(--font-display);
  font-weight:700;
  font-size: 0.9rem;
  display:flex; align-items:center; justify-content:center;
}
.section-head h2{
  font-size: 1.3rem;
  font-weight: 700;
}
.section-sub{
  color: var(--ink-soft);
  font-size: 0.88rem;
  margin-top: 3px;
}

/* ==========================================================
   FRAME PICKER
   ========================================================== */
.frame-scroller{
  display:flex;
  gap: 14px;
  overflow-x: auto;
  padding: 4px 4px 12px;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}
.frame-scroller::-webkit-scrollbar{ height:6px; }
.frame-scroller::-webkit-scrollbar-thumb{ background: var(--line); border-radius: 999px; }

.frame-card{
  flex: 0 0 auto;
  scroll-snap-align: start;
  width: 148px;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  background: var(--paper-2);
  padding: 10px;
  text-align:center;
  box-shadow: var(--shadow-1);
  transition: border-color .18s ease, transform .18s ease;
}
.frame-card:hover{ transform: translateY(-2px); }
.frame-card.is-selected{
  border-color: var(--c-orange);
  background: #FFF6F1;
}
.frame-thumb{
  position:relative;
  width: 100%;
  aspect-ratio: 1/1;
  border-radius: 12px;
  overflow:hidden;
  background:
    linear-gradient(45deg, #eef1f0 25%, transparent 25%) -6px 0/12px 12px,
    linear-gradient(-45deg, #eef1f0 25%, transparent 25%) -6px 0/12px 12px,
    linear-gradient(45deg, transparent 75%, #eef1f0 75%) -6px 0/12px 12px,
    linear-gradient(-45deg, transparent 75%, #eef1f0 75%) -6px 0/12px 12px,
    #fbfbfa;
}
.frame-thumb img{ width:100%; height:100%; object-fit:cover; }
.frame-card-name{
  display:block;
  margin-top: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}
.frame-card.is-selected .frame-card-name{ color: var(--c-orange); }

/* ==========================================================
   EDITOR / CANVAS
   ========================================================== */
.editor{
  display:flex;
  flex-direction: column;
  align-items:center;
  gap: 16px;
}
.canvas-stage{
  width: 100%;
  max-width: 400px;
  display:flex;
  flex-direction: column;
  align-items:center;
  gap: 14px;
  touch-action: none;
}
.canvas-wrap{
  position: relative;
  width: 100%;
  overflow: hidden;
  background: var(--paper-2);
  box-shadow: var(--shadow-2);
  border: 1px solid var(--line);
  touch-action: none;
  cursor: grab;
}
.canvas-wrap.has-photo{ cursor: grab; }
.canvas-wrap:active{ cursor: grabbing; }
#previewCanvas{
  width: 100%;
  height: 100%;
  display:block;
}
.empty-state{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction: column;
  align-items:center;
  justify-content:center;
  gap: 8px;
  color: var(--ink-soft);
  pointer-events:none;
}
.empty-state p{ font-size: 0.85rem; font-weight:500; }
.empty-state.is-hidden{ display:none; }

.upload-btn{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--c-teal-deep);
  color:#fff;
  font-weight: 700;
  font-size: 0.92rem;
  border-radius: 999px;
  cursor:pointer;
  box-shadow: var(--shadow-1);
  transition: background .15s ease, transform .15s ease;
}
.upload-btn:hover{ background: #005468; transform: translateY(-1px); }
.upload-btn:active{ transform: translateY(0); }

.zoom-control{
  display:flex;
  align-items:center;
  gap: 10px;
  width: 100%;
  color: var(--ink-soft);
  padding: 0 6px;
}
.zoom-control input[type="range"]{
  flex:1;
  accent-color: var(--c-orange);
  height: 4px;
}

.privacy-note{
  display:flex;
  align-items:flex-start;
  gap: 7px;
  max-width: 420px;
  margin: 4px auto 0;
  font-size: 0.78rem;
  color: var(--ink-soft);
  text-align:left;
}
.privacy-note svg{ flex:none; margin-top: 1px; color: var(--c-teal-bright); }

/* ==========================================================
   DOWNLOAD BAR
   ========================================================== */
.download-bar{
  position: fixed;
  left:0; right:0; bottom:0;
  z-index: 60;
  background: var(--paper-2);
  border-top: 1px solid var(--line);
  box-shadow: 0 -6px 24px rgba(11,43,51,0.08);
  padding: 10px 16px calc(10px + env(safe-area-inset-bottom));
}
.download-bar-inner{
  max-width: 720px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content: space-between;
  gap: 14px;
}
.download-info{
  display:flex;
  flex-direction: column;
  min-width:0;
}
.download-info strong{
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--ink);
  white-space:nowrap;
  overflow:hidden;
  text-overflow: ellipsis;
}
.download-info span{
  font-size: 0.72rem;
  color: var(--ink-soft);
}
.btn-download{
  flex:none;
  display:inline-flex;
  align-items:center;
  gap: 8px;
  border:none;
  padding: 13px 22px;
  border-radius: 999px;
  background: var(--c-orange);
  color:#fff;
  font-weight: 700;
  font-size: 0.92rem;
  cursor:pointer;
  transition: background .15s ease, transform .15s ease, opacity .15s ease;
}
.btn-download:hover:not(:disabled){ background:#D8481A; transform: translateY(-1px); }
.btn-download:disabled{
  background: #D9DEDD;
  color: #8B9A9C;
  cursor: not-allowed;
}

/* ==========================================================
   FOOTER
   ========================================================== */
.site-footer{
  margin-top: 40px;
  background: var(--c-teal-deep);
  color: #EAF4F5;
  padding: 36px 20px 26px;
}
.footer-row{
  max-width: 1120px;
  margin: 0 auto;
}
.footer-row1{
  display:flex;
  flex-direction: column;
  gap: 22px;
}
.footer-partners{
  display:flex;
  align-items:center;
  gap: 16px;
}
.footer-partners img{
  height: 40px;
  width: auto;
  max-width: 72px;
  object-fit: contain;
}
.footer-tagline{
  font-family: var(--font-display);
}
.tagline-line1{
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
}
.tagline-line2{
  font-size: 0.84rem;
  font-weight: 500;
  color: #B9DEE0;
  margin-top: 4px;
}
.footer-divider{
  height:1px;
  background: rgba(255,255,255,0.14);
  max-width: 1120px;
  margin: 26px auto;
}
.footer-row2{
  display:flex;
  flex-direction: column;
  align-items:center;
  gap: 14px;
  text-align:center;
}
.footer-social{
  display:flex;
  gap: 12px;
}
.social-icon{
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  display:flex; align-items:center; justify-content:center;
  color: #fff;
  transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.social-icon:hover{
  background: var(--c-orange);
  border-color: var(--c-orange);
  transform: translateY(-2px);
}
.copyright{
  font-size: 0.78rem;
  color: #A9D3D5;
}

/* ==========================================================
   DESKTOP / TABLET
   ========================================================== */
@media (min-width: 720px){
  :root{ --header-h: 72px; }

  .header-inner{ padding: 0 32px; }
  .header-logo img{ height: 40px; max-width: auto; }

  .hero{ padding: 64px 20px 40px; }

  .section{ max-width: 980px; padding: 44px 32px; }
  .section-head h2{ font-size: 1.5rem; }

  .frame-card{ width: 168px; }

  .editor{
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: center;
    gap: clamp(24px, 4vw, 48px);
  }
  .canvas-stage{ flex: 0 1 380px; width: auto; max-width: 380px; min-width: 260px; }
  .privacy-note{ flex: 0 1 260px; max-width: 260px; margin-top: 40px; }

  .download-bar{
    position: static;
    box-shadow:none;
    border-top: none;
    background: transparent;
    padding: 0;
    margin: 8px auto 0;
  }
  .download-bar-inner{
    max-width: 420px;
    background: var(--paper-2);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 8px 8px 8px 22px;
    box-shadow: var(--shadow-1);
  }
  body{ padding-bottom: 40px; }

  .footer-row1{
    flex-direction: row;
    align-items:center;
    justify-content: space-between;
  }
  .footer-tagline{ text-align:right; }
}

/* Tablet portrait/landscape (620–1039px): jaga editor & kartu bingkai
   tetap rapi sebelum layout desktop penuh diterapkan. */
@media (min-width: 620px) and (max-width: 1039px){
  .section{ padding: 40px 28px; }
  .frame-card{ width: 152px; }
  .canvas-stage{ flex-basis: 320px; max-width: 320px; }
  .privacy-note{ margin-top: 0; align-self: center; }
}

@media (min-width: 720px) and (max-width: 899px){
  .editor{ justify-content: center; }
  .canvas-stage{ flex-basis: 300px; max-width: 300px; }
}

@media (min-width: 1040px){
  .hero h1{ font-size: 3rem; }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .frame-card, .upload-btn, .btn-download, .social-icon{ transition:none; }
}