/* =====================================================
   SKETCHGUIDE — Addictive Duolingo-style Drawing App
   ===================================================== */

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

:root {
  --purple:    #7C3AED;
  --purple-lt: #A78BFA;
  --purple-dk: #5B21B6;
  --coral:     #F97316;
  --coral-dk:  #C2410C;
  --yellow:    #F59E0B;
  --green:     #10B981;
  --green-dk:  #047857;
  --pink:      #EC4899;
  --blue:      #3B82F6;
  --bg:        #FFFBEF;
  --surface:   #FFFFFF;
  --border:    #E5E7EB;
  --text:      #1C1917;
  --text-2:    #6B7280;
  --shadow:    0 4px 24px rgba(124,58,237,.14);
  --shadow-lg: 0 12px 48px rgba(124,58,237,.2);
  --r:         20px;
  --r-lg:      28px;
  --r-sm:      12px;
}

html { scroll-behavior: smooth; }
body { font-family: 'Nunito', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; overflow-x: hidden; }

/* ── Screens ── */
.screen { display: none !important; min-height: 100vh; }
.screen.active { display: block !important; }
#screen-tutorial.active { display: flex !important; }
#screen-loading.active { display: flex !important; }

.gradient-text {
  background: linear-gradient(135deg, var(--purple) 0%, var(--coral) 60%, var(--yellow) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

/* =====================================================
   HOME SCREEN
   ===================================================== */
.nav-right { display: flex; align-items: center; gap: .75rem; }
.nav-link {
  background: none; border: 2px solid var(--border); border-radius: 999px;
  padding: .35rem .9rem; font-family: 'Nunito', sans-serif;
  font-weight: 800; font-size: .85rem; color: var(--text-2); cursor: pointer;
  transition: all .2s;
}
.nav-link:hover { border-color: var(--purple); color: var(--purple); }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 2rem; position: sticky; top: 0; z-index: 100;
  background: rgba(255,251,239,.88); backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(229,231,235,.6);
}
.logo { display: flex; align-items: center; gap: .5rem; }
.logo-icon { font-size: 1.6rem; }
.logo-text { font-family: 'Fredoka One', cursive; font-size: 1.5rem; color: var(--purple); }
.nav-badge { background: linear-gradient(135deg, var(--purple), var(--pink)); color: #fff; padding: .3rem .9rem; border-radius: 999px; font-size: .78rem; font-weight: 700; }

.hero { display: grid; grid-template-columns: 1fr 420px; gap: 2rem; max-width: 1200px; margin: 0 auto; padding: 4rem 2rem 2rem; align-items: center; }
.hero-tag { display: inline-flex; align-items: center; gap: .4rem; background: #FEF3C7; color: var(--yellow); border: 2px solid var(--yellow); padding: .4rem 1rem; border-radius: 999px; font-size: .85rem; font-weight: 800; margin-bottom: 1.25rem; }
.hero-title { font-family: 'Fredoka One', cursive; font-size: clamp(2.6rem,5vw,4rem); line-height: 1.1; margin-bottom: 1rem; }
.hero-subtitle { font-size: 1.05rem; color: var(--text-2); line-height: 1.7; margin-bottom: 2rem; font-weight: 600; }

/* Upload */
.upload-card { background: var(--surface); border: 3px dashed var(--purple-lt); border-radius: var(--r-lg); overflow: hidden; transition: border-color .25s, box-shadow .25s; margin-bottom: 1.5rem; min-height: 200px; }
.upload-card:hover, .upload-card.drag-over { border-color: var(--purple); box-shadow: var(--shadow); }
.upload-card.drag-over { background: #F5F3FF; }
.upload-zone { display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 2.5rem 2rem; gap: .5rem; text-align: center; }
.upload-icon-wrapper { position: relative; margin-bottom: .75rem; }
.upload-icon { font-size: 3rem; }
.upload-pulse { position: absolute; inset: -8px; border-radius: 50%; border: 3px solid var(--purple-lt); animation: pulse-ring 2s ease-out infinite; }
@keyframes pulse-ring { 0% { transform: scale(.8); opacity: .8; } 80% { transform: scale(1.4); opacity: 0; } 100% { opacity: 0; } }
.upload-primary { font-size: 1.05rem; font-weight: 800; }
.upload-secondary { font-size: .85rem; color: var(--text-2); font-weight: 600; }
.upload-hint { font-size: .78rem; color: var(--text-2); }
.upload-preview { position: relative; width: 100%; height: 200px; }
.upload-preview img { width: 100%; height: 100%; object-fit: cover; display: block; }
.preview-overlay { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(transparent, rgba(0,0,0,.6)); display: flex; align-items: center; justify-content: space-between; padding: 1rem; }
.preview-name { color: #fff; font-size: .85rem; font-weight: 700; }
.btn-icon { background: rgba(255,255,255,.25); border: none; color: #fff; width: 28px; height: 28px; border-radius: 50%; cursor: pointer; font-size: .85rem; display: flex; align-items: center; justify-content: center; transition: background .2s; }
.btn-icon:hover { background: rgba(255,255,255,.45); }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: .5rem; padding: .85rem 1.75rem; border-radius: 999px; border: none; font-family: 'Nunito', sans-serif; font-weight: 800; font-size: 1rem; cursor: pointer; transition: all .2s cubic-bezier(.34,1.56,.64,1); }
.btn:active { transform: scale(.96); }
.btn-upload { background: var(--purple); color: #fff; box-shadow: 0 4px 0 var(--purple-dk); margin: .25rem 0; }
.btn-upload:hover { background: var(--purple-dk); transform: translateY(-2px); box-shadow: 0 6px 0 #3b0764; }
.btn-generate { width: 100%; justify-content: center; background: linear-gradient(135deg, var(--coral), var(--yellow)); color: #fff; font-size: 1.15rem; padding: 1rem 2rem; box-shadow: 0 5px 0 var(--coral-dk); border-radius: var(--r); }
.btn-generate:not(:disabled):hover { transform: translateY(-3px); box-shadow: 0 8px 0 var(--coral-dk); }
.btn-generate:not(:disabled):active { transform: translateY(1px); box-shadow: 0 2px 0 var(--coral-dk); }
.btn-generate:disabled { background: #D1D5DB; box-shadow: 0 4px 0 #9CA3AF; cursor: not-allowed; opacity: .7; }
.btn-arrow { font-size: 1.1rem; }
.btn-primary { background: var(--purple); color: #fff; box-shadow: 0 4px 0 var(--purple-dk); width: 100%; justify-content: center; font-size: 1.05rem; padding: .9rem; }
.btn-primary:hover { background: var(--purple-dk); transform: translateY(-2px); box-shadow: 0 6px 0 #3b0764; }

.sample-prompts { display: flex; align-items: center; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.sample-label { font-size: .85rem; color: var(--text-2); font-weight: 700; }
.sample-chip { background: var(--surface); border: 2px solid var(--border); border-radius: 999px; padding: .3rem .85rem; font-size: .82rem; font-weight: 700; color: var(--text-2); cursor: pointer; transition: all .15s; }
.sample-chip:hover { border-color: var(--purple); color: var(--purple); background: #F5F3FF; }

/* Hero visual */
.hero-visual { position: relative; height: 480px; }
.floating-card { position: absolute; background: var(--surface); border-radius: var(--r); padding: 1.25rem; box-shadow: var(--shadow-lg); animation: float 6s ease-in-out infinite; }
.card-1 { width: 200px; top: 40px; right: 40px; animation-delay: 0s; }
.card-2 { width: 180px; top: 180px; left: 20px; animation-delay: 1.5s; }
.card-3 { width: 220px; bottom: 80px; right: 10px; animation-delay: 3s; }
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.step-badge { display: inline-block; background: linear-gradient(135deg, var(--purple), var(--pink)); color: #fff; font-size: .72rem; font-weight: 800; padding: .2rem .65rem; border-radius: 999px; margin-bottom: .75rem; }
.step-badge.done { background: linear-gradient(135deg, var(--green), #059669); }
.card-line { height: 10px; background: var(--border); border-radius: 999px; margin-bottom: .5rem; }
.card-line.short { width: 60%; }
.mini-progress { height: 12px; background: var(--border); border-radius: 999px; overflow: hidden; }
.mini-bar { height: 100%; width: 65%; background: linear-gradient(90deg, var(--purple), var(--pink)); border-radius: 999px; animation: bar-grow 3s ease-in-out infinite alternate; }
@keyframes bar-grow { from { width: 30%; } to { width: 80%; } }
.floating-orb { position: absolute; border-radius: 50%; opacity: .15; animation: float 8s ease-in-out infinite; }
.orb-1 { width: 100px; height: 100px; background: var(--purple); top: 10px; left: 80px; animation-delay: .5s; }
.orb-2 { width: 60px; height: 60px; background: var(--coral); bottom: 60px; left: 160px; animation-delay: 2s; }
.orb-3 { width: 80px; height: 80px; background: var(--yellow); top: 250px; right: 180px; animation-delay: 4s; }

.features-row { display: flex; justify-content: center; flex-wrap: wrap; gap: .75rem; padding: 1.5rem 2rem 2rem; max-width: 900px; margin: 0 auto; }
.feature-chip { background: var(--surface); border: 2px solid var(--border); border-radius: 999px; padding: .5rem 1.25rem; font-size: .88rem; font-weight: 800; color: var(--text-2); }

/* Home portfolio preview */
.home-portfolio { max-width: 1100px; margin: 0 auto; padding: 1.5rem 2rem 4rem; }
.home-portfolio-header { display: flex; align-items: flex-end; justify-content: space-between; gap: 1rem; margin-bottom: 1.25rem; flex-wrap: wrap; }
.home-portfolio-title { font-family: 'Fredoka One', cursive; font-size: 1.6rem; margin-bottom: .2rem; }
.home-portfolio-sub { color: var(--text-2); font-size: .92rem; font-weight: 600; }
.home-portfolio-empty { grid-column: 1 / -1; text-align: center; padding: 2rem; color: var(--text-2); font-weight: 600; }
@media (max-width: 600px) {
  .home-portfolio { padding: 1rem 1rem 3rem; }
  .home-portfolio-title { font-size: 1.3rem; }
}

/* =====================================================
   LOADING SCREEN
   ===================================================== */
#screen-loading { align-items: center; justify-content: center; background: linear-gradient(135deg, #1E1B4B 0%, #312E81 50%, #4C1D95 100%); min-height: 100vh; }

.loading-layout { display: grid; grid-template-columns: 340px 1fr; gap: 3rem; max-width: 900px; width: 100%; padding: 2rem; align-items: center; }

.loading-preview-wrap { position: relative; border-radius: var(--r-lg); overflow: hidden; box-shadow: 0 20px 60px rgba(0,0,0,.4); aspect-ratio: 1; }
.loading-preview-img { width: 100%; height: 100%; object-fit: cover; display: block; filter: brightness(.6); }
.loading-preview-overlay { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; }
.drawing-lines { position: relative; width: 100%; height: 100%; }
.dl { position: absolute; background: rgba(167,139,250,.7); border-radius: 999px; animation: dl-draw 2s ease-in-out infinite; }
.dl-1 { height: 2px; width: 0; top: 30%; left: 10%; animation-delay: 0s; }
.dl-2 { height: 2px; width: 0; top: 50%; left: 20%; animation-delay: .5s; }
.dl-3 { height: 2px; width: 0; top: 65%; left: 15%; animation-delay: 1s; }
.dl-4 { height: 2px; width: 0; top: 45%; left: 30%; animation-delay: 1.5s; }
@keyframes dl-draw { 0%, 100% { width: 0; opacity: 0; } 30% { opacity: 1; } 60% { width: 55%; opacity: 1; } 80% { width: 55%; opacity: 0; } }

.loading-right { color: #fff; }
.pencil-anim { font-size: 2.5rem; display: inline-block; animation: pencil-write 1.5s ease-in-out infinite; transform-origin: bottom right; margin-bottom: 1rem; }
@keyframes pencil-write { 0%, 100% { transform: rotate(-10deg); } 50% { transform: rotate(8deg) translateX(8px); } }
.loading-title { font-family: 'Fredoka One', cursive; font-size: 1.8rem; margin-bottom: .4rem; }
.dot-anim::after { content: ''; animation: dots 1.5s steps(3,end) infinite; }
@keyframes dots { 0% { content: ''; } 33% { content: '.'; } 66% { content: '..'; } 100% { content: '...'; } }
.loading-message { font-size: .95rem; color: rgba(255,255,255,.65); font-weight: 600; margin-bottom: 1.5rem; min-height: 1.4em; transition: opacity .4s; }

.loading-steps-container { display: flex; flex-direction: column; gap: .6rem; margin-bottom: 1.5rem; }
.loading-step { display: flex; align-items: center; gap: .85rem; background: rgba(255,255,255,.08); border-radius: var(--r-sm); padding: .75rem 1rem; transition: background .3s; }
.loading-step.active { background: rgba(167,139,250,.2); }
.loading-step.done { background: rgba(16,185,129,.15); }
.loading-step.pending { opacity: .4; }
.ls-icon { font-size: 1.2rem; }
.ls-text { flex: 1; display: flex; flex-direction: column; gap: .1rem; }
.ls-label { font-weight: 800; font-size: .88rem; }
.ls-status { font-size: .75rem; color: rgba(255,255,255,.55); }
.loading-step.done .ls-status { color: #6EE7B7; }
.ls-spinner { width: 18px; height: 18px; border: 2.5px solid rgba(255,255,255,.2); border-top-color: #A78BFA; border-radius: 50%; flex-shrink: 0; }
.loading-step.active .ls-spinner { animation: spin .8s linear infinite; }
.loading-step.done .ls-spinner { border: none; width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; color: var(--green); font-size: 1rem; }
.loading-step.done .ls-spinner::after { content: '✓'; font-weight: 900; color: #6EE7B7; }
@keyframes spin { to { transform: rotate(360deg); } }

.loading-bar-wrapper { position: relative; height: 10px; background: rgba(255,255,255,.15); border-radius: 999px; overflow: hidden; margin-bottom: .5rem; }
.loading-bar { height: 100%; width: 0; background: linear-gradient(90deg, #A78BFA, #F472B6); border-radius: 999px; transition: width .6s ease; }
.loading-pct { position: absolute; right: 0; top: -1.4rem; font-size: .75rem; color: rgba(255,255,255,.5); font-weight: 700; }
.loading-sub { font-size: .82rem; color: rgba(255,255,255,.4); font-weight: 600; }

/* =====================================================
   TUTORIAL SCREEN
   ===================================================== */
#screen-tutorial {
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  background: var(--bg);
}

/* Top bar */
.tut-topbar {
  display: flex; align-items: center; gap: 1rem;
  padding: .85rem 1.25rem;
  background: var(--surface);
  border-bottom: 2px solid var(--border);
  flex-shrink: 0;
  z-index: 10;
}

.back-btn {
  width: 36px; height: 36px; border-radius: 50%;
  border: 2px solid var(--border);
  background: none; cursor: pointer;
  font-size: 1rem; color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  transition: all .2s; flex-shrink: 0;
}
.back-btn:hover { border-color: var(--purple); color: var(--purple); }

/* Step dots */
.step-dots { flex: 1; display: flex; align-items: center; justify-content: center; gap: .5rem; }
.step-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: all .3s cubic-bezier(.34,1.56,.64,1);
  border: 2px solid transparent;
}
.step-dot.done { background: var(--green); border-color: var(--green-dk); }
.step-dot.active {
  background: var(--purple); border-color: var(--purple-dk);
  transform: scale(1.5);
  box-shadow: 0 0 0 3px rgba(124,58,237,.25);
}
.step-dot.locked { background: var(--border); opacity: .4; cursor: default; }

.xp-pill {
  display: flex; align-items: center; gap: .3rem;
  background: #FEF3C7; border: 2px solid var(--yellow);
  border-radius: 999px; padding: .3rem .85rem;
  font-weight: 900; font-size: .9rem; color: #78350F;
  flex-shrink: 0;
  transition: transform .2s;
}

/* Step viewer */
.step-viewer {
  flex: 1;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: stretch;
}

/* Step card — fills viewer, never scrolls as a whole */
.step-card {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;  /* no outer scroll — only inner body scrolls */
  background: var(--bg);
}
.step-card.slide-in-right  { animation: slide-in-r .35s cubic-bezier(.25,.46,.45,.94) both; }
.step-card.slide-in-left   { animation: slide-in-l .35s cubic-bezier(.25,.46,.45,.94) both; }
.step-card.slide-out-left  { animation: slide-out-l .3s cubic-bezier(.55,0,1,.45) both; }
.step-card.slide-out-right { animation: slide-out-r .3s cubic-bezier(.55,0,1,.45) both; }
@keyframes slide-in-r  { from { transform: translateX(100%); } to { transform: translateX(0); } }
@keyframes slide-in-l  { from { transform: translateX(-100%); } to { transform: translateX(0); } }
@keyframes slide-out-l { from { transform: translateX(0); } to { transform: translateX(-100%); } }
@keyframes slide-out-r { from { transform: translateX(0); } to { transform: translateX(100%); } }

/* Step number banner — always obvious which step you're on */
.step-banner {
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: #fff;
  text-align: center;
  padding: .45rem;
  font-family: 'Fredoka One', cursive;
  font-size: 1rem;
  letter-spacing: .5px;
  flex-shrink: 0;
}

/* Step image — big, centered, fixed height */
.step-img-section {
  width: 100%;
  height: 38vh;
  min-height: 180px;
  max-height: 300px;
  background: #f0f0f0;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}
.step-img-section img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: .75rem;
  cursor: zoom-in;
  transition: transform .2s;
}
.step-img-section img:hover { transform: scale(1.02); }
.step-img-section::after {
  content: '⤢ Tap to zoom';
  position: absolute; bottom: .5rem; right: .75rem;
  background: rgba(0,0,0,.55); color: #fff;
  font-size: .68rem; font-weight: 800;
  padding: .2rem .55rem; border-radius: 999px;
  pointer-events: none;
  backdrop-filter: blur(4px);
}

/* Zoom modal */
.zoom-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.92);
  z-index: 700;
  display: none;
  align-items: center; justify-content: center;
  animation: fade-in .25s ease;
  cursor: zoom-out;
}
.zoom-overlay.show { display: flex; }
.zoom-overlay img {
  max-width: 95vw; max-height: 90vh;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 24px 80px rgba(0,0,0,.5);
}
.zoom-close {
  position: absolute; top: 1rem; right: 1rem;
  width: 44px; height: 44px; border-radius: 50%;
  border: none; background: rgba(255,255,255,.15); color: #fff;
  font-size: 1.3rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(8px);
  transition: background .2s;
}
.zoom-close:hover { background: rgba(255,255,255,.3); }
.zoom-hint {
  position: absolute; bottom: 1.25rem; left: 50%; transform: translateX(-50%);
  color: rgba(255,255,255,.75); font-size: .85rem; font-weight: 700;
  pointer-events: none;
}
.step-img-loading {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .75rem; color: var(--text-2);
  background: #F8FAFC;
}
.img-spinner { width: 36px; height: 36px; border: 4px solid var(--border); border-top-color: var(--purple); border-radius: 50%; animation: spin .8s linear infinite; }
.step-img-loading p { font-size: .85rem; font-weight: 700; color: var(--text-2); }

.step-tag {
  position: absolute; top: .75rem; left: .75rem;
  background: rgba(0,0,0,.55); color: #fff;
  font-size: .72rem; font-weight: 800;
  padding: .25rem .65rem; border-radius: 999px;
  backdrop-filter: blur(4px);
}

/* Step info */
.step-info {
  padding: 1.25rem 1.5rem .5rem;
  display: flex; align-items: center; gap: .75rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.step-num-badge {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: #fff; font-family: 'Fredoka One', cursive; font-size: 1.15rem;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; box-shadow: 0 3px 10px rgba(124,58,237,.35);
}
.step-num-badge.complete { background: linear-gradient(135deg, var(--green), #059669); }
.step-title { font-family: 'Fredoka One', cursive; font-size: 1.2rem; }
.step-desc { font-size: .85rem; color: var(--text-2); font-weight: 600; margin-top: .1rem; }

/* Instructions — this is the only part that scrolls */
.step-body { padding: 1rem 1.5rem; flex: 1; overflow-y: auto; -webkit-overflow-scrolling: touch; }
.instructions-list { list-style: none; display: flex; flex-direction: column; gap: .6rem; margin-bottom: 1rem; }
.instructions-list li { display: flex; align-items: flex-start; gap: .65rem; font-size: .92rem; font-weight: 600; line-height: 1.5; }
.instr-bullet { width: 22px; height: 22px; border-radius: 50%; background: #EDE9FE; color: var(--purple-dk); font-size: .7rem; font-weight: 800; display: flex; align-items: center; justify-content: center; flex-shrink: 0; margin-top: .1rem; }
.tip-box { display: flex; align-items: flex-start; gap: .65rem; background: #FEF3C7; border: 2px solid var(--yellow); border-radius: var(--r-sm); padding: .75rem 1rem; font-size: .85rem; font-weight: 700; color: #78350F; }
.tip-icon { font-size: 1.1rem; flex-shrink: 0; }

/* CTA — sticky at bottom, always visible */
.step-cta {
  padding: .75rem 1.5rem 1.25rem;
  flex-shrink: 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}
.btn-did-it {
  width: 100%;
  display: flex; align-items: center; justify-content: center; gap: .6rem;
  background: linear-gradient(135deg, var(--green), #059669);
  color: #fff;
  border: none; border-radius: var(--r);
  padding: 1.1rem;
  font-family: 'Nunito', sans-serif;
  font-weight: 900; font-size: 1.15rem;
  cursor: pointer;
  box-shadow: 0 5px 0 var(--green-dk);
  transition: all .2s cubic-bezier(.34,1.56,.64,1);
  letter-spacing: .3px;
}
.btn-did-it:hover { transform: translateY(-3px); box-shadow: 0 8px 0 var(--green-dk); }
.btn-did-it:active { transform: translateY(1px); box-shadow: 0 2px 0 var(--green-dk); }
.btn-did-it:disabled { background: #D1D5DB; box-shadow: 0 4px 0 #9CA3AF; cursor: not-allowed; transform: none; }
.btn-did-it.done { background: #6B7280; box-shadow: 0 4px 0 #374151; cursor: default; }

/* Review nav on completed steps */
.step-nav { display: flex; gap: .75rem; padding: .75rem 1.5rem 1.25rem; flex-shrink: 0; background: var(--bg); border-top: 1px solid var(--border); }
.btn-nav {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: .4rem;
  background: var(--surface); border: 2px solid var(--border);
  border-radius: var(--r); padding: .75rem;
  font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .9rem;
  cursor: pointer; color: var(--text-2);
  transition: all .2s;
}
.btn-nav:hover { border-color: var(--purple); color: var(--purple); }
.btn-nav.next-step { background: var(--purple); color: #fff; border-color: var(--purple); box-shadow: 0 3px 0 var(--purple-dk); }
.btn-nav.next-step:hover { transform: translateY(-2px); box-shadow: 0 5px 0 var(--purple-dk); }

/* Generating card */
.generating-card {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 1rem; background: var(--bg);
}
.gen-spinner { width: 52px; height: 52px; border: 5px solid var(--border); border-top-color: var(--purple); border-radius: 50%; animation: spin .8s linear infinite; }
.gen-title { font-family: 'Fredoka One', cursive; font-size: 1.4rem; }
.gen-sub { font-size: .9rem; color: var(--text-2); font-weight: 600; }

/* =====================================================
   TOAST
   ===================================================== */
.toast {
  position: fixed; top: 1rem; left: 50%; transform: translateX(-50%) translateY(-120px);
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: #fff; font-family: 'Fredoka One', cursive; font-size: 1.2rem;
  padding: .75rem 1.75rem; border-radius: 999px;
  box-shadow: 0 8px 32px rgba(124,58,237,.4);
  z-index: 500; pointer-events: none;
  transition: transform .4s cubic-bezier(.34,1.56,.64,1);
  white-space: nowrap;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* =====================================================
   FLOATING XP
   ===================================================== */
.floating-xp {
  position: fixed; left: 50%; transform: translateX(-50%);
  bottom: 5rem; z-index: 600; pointer-events: none;
  font-family: 'Fredoka One', cursive; font-size: 1.6rem;
  color: var(--yellow); text-shadow: 0 2px 8px rgba(0,0,0,.2);
  opacity: 0;
}
.floating-xp.pop { animation: xp-float 1.2s ease-out forwards; }
@keyframes xp-float {
  0%   { opacity: 0; transform: translateX(-50%) translateY(0) scale(.6); }
  20%  { opacity: 1; transform: translateX(-50%) translateY(-10px) scale(1.2); }
  80%  { opacity: 1; transform: translateX(-50%) translateY(-60px) scale(1); }
  100% { opacity: 0; transform: translateX(-50%) translateY(-80px) scale(.9); }
}

/* =====================================================
   FEEDBACK DRAWER
   ===================================================== */
.feedback-backdrop {
  position: fixed; inset: 0; background: rgba(0,0,0,.45);
  z-index: 298; opacity: 0; pointer-events: none;
  transition: opacity .3s;
}
.feedback-backdrop.show { opacity: 1; pointer-events: all; }

.feedback-drawer {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: var(--surface);
  border-radius: 24px 24px 0 0;
  box-shadow: 0 -8px 48px rgba(0,0,0,.18);
  z-index: 299;
  max-height: 88vh;
  overflow-y: auto;
  transform: translateY(100%);
  transition: transform .4s cubic-bezier(.25,.46,.45,.94);
  padding: 0 1.5rem 2rem;
}
.feedback-drawer.open { transform: translateY(0); }

.feedback-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 0 .75rem;
  position: sticky; top: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.25rem;
}
.feedback-title { font-family: 'Fredoka One', cursive; font-size: 1.25rem; color: var(--text); }
.feedback-close {
  width: 32px; height: 32px; border-radius: 50%;
  border: 2px solid var(--border); background: none;
  cursor: pointer; font-size: .9rem; color: var(--text-2);
  display: flex; align-items: center; justify-content: center;
  transition: all .2s;
}
.feedback-close:hover { border-color: var(--purple); color: var(--purple); }

/* Check my drawing button — shown on each step card */
.btn-check-drawing {
  width: 100%; display: flex; align-items: center; justify-content: center; gap: .5rem;
  background: none; border: 2.5px solid var(--purple-lt);
  border-radius: var(--r); padding: .75rem;
  font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .95rem;
  color: var(--purple); cursor: pointer;
  transition: all .2s;
  margin-top: .6rem;
}
.btn-check-drawing:hover { background: #F5F3FF; border-color: var(--purple); transform: translateY(-1px); }

.fb-prompt { font-size: .95rem; font-weight: 700; color: var(--text-2); text-align: center; margin-bottom: 1.25rem; line-height: 1.5; }

.fb-upload-zone { display: flex; flex-direction: column; gap: .6rem; margin-bottom: 1rem; }
.fb-upload-btn {
  display: flex; align-items: center; justify-content: center; gap: .5rem;
  background: var(--purple); color: #fff;
  border-radius: var(--r); padding: .9rem;
  font-family: 'Nunito', sans-serif; font-weight: 800; font-size: 1rem;
  cursor: pointer; box-shadow: 0 4px 0 var(--purple-dk);
  transition: all .2s cubic-bezier(.34,1.56,.64,1);
}
.fb-upload-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 0 var(--purple-dk); }
.fb-upload-btn.secondary {
  background: var(--surface); color: var(--purple);
  border: 2px solid var(--purple-lt);
  box-shadow: none;
}
.fb-upload-btn.secondary:hover { background: #F5F3FF; box-shadow: none; }

.fb-preview-wrap { position: relative; border-radius: var(--r); overflow: hidden; margin-bottom: 1rem; }
.fb-preview-wrap img { width: 100%; max-height: 220px; object-fit: contain; display: block; background: #F8FAFC; }
.fb-retake {
  position: absolute; top: .75rem; right: .75rem;
  background: rgba(0,0,0,.55); color: #fff; border: none; border-radius: 999px;
  padding: .3rem .8rem; font-size: .8rem; font-weight: 800; cursor: pointer;
  backdrop-filter: blur(4px);
}
.fb-retake:hover { background: rgba(0,0,0,.75); }

.btn-analyze {
  width: 100%; display: flex; align-items: center; justify-content: center; gap: .5rem;
  background: linear-gradient(135deg, var(--coral), var(--yellow));
  color: #fff; border: none; border-radius: var(--r);
  padding: 1rem; font-family: 'Nunito', sans-serif; font-weight: 900; font-size: 1.05rem;
  cursor: pointer; box-shadow: 0 4px 0 var(--coral-dk);
  transition: all .2s cubic-bezier(.34,1.56,.64,1);
}
.btn-analyze:not(:disabled):hover { transform: translateY(-2px); box-shadow: 0 6px 0 var(--coral-dk); }
.btn-analyze:disabled { background: #D1D5DB; box-shadow: 0 3px 0 #9CA3AF; cursor: not-allowed; }

/* Analyzing spinner */
.fb-analyzing { display: flex; flex-direction: column; align-items: center; gap: 1rem; padding: 2.5rem 0; }
.fb-pencil-spin { font-size: 2.5rem; animation: pencil-write 1.2s ease-in-out infinite; }
.fb-analyzing-text { font-family: 'Fredoka One', cursive; font-size: 1.2rem; color: var(--text); }

/* Results */
.fb-score-row { display: flex; align-items: center; gap: .75rem; margin-bottom: 1.25rem; justify-content: center; }
.fb-stars { display: flex; gap: .2rem; }
.fb-star { font-size: 1.6rem; opacity: .25; transition: all .3s; }
.fb-star.lit { opacity: 1; animation: star-pop .4s cubic-bezier(.34,1.56,.64,1) both; }
@keyframes star-pop { from { transform: scale(0); } to { transform: scale(1); } }
.fb-score-label { font-family: 'Fredoka One', cursive; font-size: 1.3rem; color: var(--purple); }

.fb-section { margin-bottom: 1rem; }
.fb-section-title { font-size: .82rem; font-weight: 900; text-transform: uppercase; letter-spacing: .8px; color: var(--text-2); margin-bottom: .5rem; }
.fb-list { list-style: none; display: flex; flex-direction: column; gap: .45rem; }
.fb-list li { display: flex; align-items: flex-start; gap: .5rem; font-size: .92rem; font-weight: 600; line-height: 1.5; }
.fb-strengths li::before { content: '✓'; color: var(--green); font-weight: 900; flex-shrink: 0; }
.fb-improvements li::before { content: '→'; color: var(--coral); font-weight: 900; flex-shrink: 0; }

.fb-encouragement {
  background: linear-gradient(135deg, #F5F3FF, #FDF2F8);
  border: 2px solid var(--purple-lt);
  border-radius: var(--r-sm);
  padding: .85rem 1rem;
  font-size: .95rem; font-weight: 700;
  color: var(--purple-dk);
  margin-bottom: 1.25rem;
  text-align: center;
  line-height: 1.5;
}

.fb-actions { display: flex; gap: .75rem; }
.fb-action-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: .4rem;
  border: none; border-radius: var(--r); padding: .85rem;
  font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .95rem;
  cursor: pointer; transition: all .2s;
}
.fb-action-btn.retry { background: var(--surface); border: 2px solid var(--border); color: var(--text-2); }
.fb-action-btn.retry:hover { border-color: var(--purple); color: var(--purple); }
.fb-action-btn.next { background: var(--green); color: #fff; box-shadow: 0 3px 0 var(--green-dk); }
.fb-action-btn.next:hover { transform: translateY(-2px); box-shadow: 0 5px 0 var(--green-dk); }

/* =====================================================
   COMPLETION MODAL
   ===================================================== */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.6);
  backdrop-filter: blur(6px); z-index: 200;
  display: flex; align-items: center; justify-content: center;
  animation: fade-in .3s ease;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--surface); border-radius: var(--r-lg);
  padding: 2rem 2rem 2.5rem; max-width: 420px; width: 90%;
  text-align: center; position: relative; overflow: hidden;
  animation: modal-in .45s cubic-bezier(.34,1.56,.64,1);
  box-shadow: 0 24px 80px rgba(0,0,0,.3);
}
@keyframes modal-in { from { opacity: 0; transform: scale(.8) translateY(30px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.modal-confetti { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }
.modal-trophy { font-size: 4.5rem; display: block; margin-bottom: .75rem; animation: trophy-in .6s cubic-bezier(.34,1.56,.64,1) .2s both; }
@keyframes trophy-in { from { transform: scale(0) rotate(-20deg); opacity: 0; } to { transform: scale(1) rotate(0); opacity: 1; } }
.modal-title { font-family: 'Fredoka One', cursive; font-size: 2.2rem; margin-bottom: .4rem; background: linear-gradient(135deg, var(--purple), var(--coral)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.modal-sub { color: var(--text-2); font-size: .95rem; font-weight: 600; margin-bottom: 1rem; }
.modal-xp-badge { display: inline-flex; align-items: center; gap: .4rem; background: #FEF3C7; border: 2px solid var(--yellow); border-radius: 999px; padding: .5rem 1.25rem; font-weight: 900; color: #78350F; font-size: 1.05rem; margin-bottom: 1.25rem; }

/* Filmstrip */
.modal-filmstrip { display: flex; gap: .5rem; overflow-x: auto; padding: .5rem 0 .75rem; scrollbar-width: none; margin-bottom: 1.25rem; }
.modal-filmstrip::-webkit-scrollbar { display: none; }
.filmstrip-thumb { flex-shrink: 0; width: 80px; height: 80px; border-radius: var(--r-sm); overflow: hidden; border: 2px solid var(--border); background: #F3F4F6; }
.filmstrip-thumb img { width: 100%; height: 100%; object-fit: cover; }
.filmstrip-thumb.blank { display: flex; align-items: center; justify-content: center; font-size: 1.5rem; }

.confetti-piece { position: absolute; border-radius: 2px; animation: confetti-fall linear forwards; }
@keyframes confetti-fall { from { transform: translateY(-20px) rotate(0); opacity: 1; } to { transform: translateY(450px) rotate(720deg); opacity: 0; } }

/* =====================================================
   MODAL SAVE SECTION
   ===================================================== */
.modal-save-section { margin-bottom: 1rem; }
.privacy-toggle { display: flex; gap: .5rem; margin-bottom: .75rem; }
.privacy-btn {
  flex: 1; display: flex; align-items: center; justify-content: center; gap: .4rem;
  padding: .65rem; border-radius: var(--r-sm);
  border: 2px solid var(--border); background: var(--surface);
  font-family: 'Nunito', sans-serif; font-weight: 800; font-size: .88rem;
  color: var(--text-2); cursor: pointer; transition: all .2s;
}
.privacy-btn.active { border-color: var(--purple); color: var(--purple); background: #F5F3FF; }
.privacy-btn:disabled { opacity: .5; cursor: not-allowed; }
.privacy-tag { font-size: .68rem; font-weight: 900; padding: .15rem .4rem; border-radius: 999px; margin-left: .2rem; }
.privacy-tag.free { background: #D1FAE5; color: var(--green-dk); }
.privacy-tag.soon { background: #FEE2E2; color: #991B1B; }

.btn-save-portfolio {
  width: 100%; display: flex; align-items: center; justify-content: center; gap: .5rem;
  background: linear-gradient(135deg, var(--purple), var(--pink));
  color: #fff; border: none; border-radius: var(--r);
  padding: .85rem; font-family: 'Nunito', sans-serif; font-weight: 900; font-size: 1rem;
  cursor: pointer; box-shadow: 0 4px 0 var(--purple-dk);
  transition: all .2s cubic-bezier(.34,1.56,.64,1);
  margin-bottom: .5rem;
}
.btn-save-portfolio:hover { transform: translateY(-2px); box-shadow: 0 6px 0 var(--purple-dk); }
.btn-save-portfolio:disabled { background: #D1D5DB; box-shadow: 0 3px 0 #9CA3AF; cursor: not-allowed; transform: none; }
.modal-save-note { font-size: .8rem; color: var(--text-2); font-weight: 600; text-align: center; min-height: 1.2em; }

/* =====================================================
   PORTFOLIO PAGE
   ===================================================== */
.portfolio-page { max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem 4rem; }
.portfolio-hero { text-align: center; margin-bottom: 2.5rem; }
.portfolio-title { font-family: 'Fredoka One', cursive; font-size: 2.2rem; margin-bottom: .4rem; }
.portfolio-sub { color: var(--text-2); font-size: 1rem; font-weight: 600; }

.portfolio-section { margin-bottom: 3rem; }
.portfolio-section-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.25rem; }
.portfolio-section-title { font-family: 'Fredoka One', cursive; font-size: 1.4rem; }
.portfolio-section-tag { background: var(--green-lt, #D1FAE5); color: var(--green-dk); border-radius: 999px; padding: .2rem .7rem; font-size: .75rem; font-weight: 800; }
.btn.small { padding: .4rem .9rem; font-size: .82rem; }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1.25rem;
}

.portfolio-card {
  background: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
  cursor: pointer;
  transition: all .2s;
  animation: card-in .4s cubic-bezier(.34,1.56,.64,1);
}
.portfolio-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--purple-lt); }

.p-card-thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: #f0f0f0;
  height: 140px;
}
.p-card-thumbs img { width: 100%; height: 100%; object-fit: cover; display: block; }
.p-card-thumbs .p-thumb-empty { background: #E5E7EB; display: flex; align-items: center; justify-content: center; font-size: 1.4rem; }

.p-card-body { padding: .85rem; }
.p-card-subject { font-family: 'Fredoka One', cursive; font-size: 1rem; margin-bottom: .25rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.p-card-meta { display: flex; align-items: center; justify-content: space-between; }
.p-card-date { font-size: .75rem; color: var(--text-2); font-weight: 600; }
.p-card-badge { font-size: .7rem; font-weight: 800; padding: .15rem .5rem; border-radius: 999px; }
.p-card-badge.public { background: #D1FAE5; color: var(--green-dk); }
.p-card-badge.mine { background: #EDE9FE; color: var(--purple-dk); }

.portfolio-empty {
  grid-column: 1 / -1;
  display: flex; flex-direction: column; align-items: center; gap: .75rem;
  padding: 3rem; text-align: center; color: var(--text-2);
  border: 2px dashed var(--border); border-radius: var(--r);
}
.empty-icon { font-size: 3rem; opacity: .4; }
.portfolio-empty p { font-weight: 600; font-size: .95rem; }

.portfolio-loading-row { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.p-skeleton { height: 220px; border-radius: var(--r); background: var(--surface); border: 2px solid var(--border); position: relative; overflow: hidden; }
.p-skeleton::after { content: ''; position: absolute; inset: 0; background: linear-gradient(90deg, transparent 20%, rgba(255,255,255,.6) 50%, transparent 80%); animation: shimmer 1.4s infinite; }

/* =====================================================
   PORTFOLIO DETAIL VIEW
   ===================================================== */
.detail-steps { max-width: 700px; margin: 0 auto; padding: 1.5rem; display: flex; flex-direction: column; gap: 1.5rem; }
.detail-card { background: var(--surface); border: 2px solid var(--border); border-radius: var(--r); overflow: hidden; }
.detail-card img { width: 100%; max-height: 340px; object-fit: contain; display: block; background: #F8FAFC; padding: .75rem; }
.detail-card-body { padding: 1rem 1.25rem; }
.detail-card-title { font-family: 'Fredoka One', cursive; font-size: 1.1rem; margin-bottom: .25rem; }
.detail-card-desc { font-size: .88rem; color: var(--text-2); font-weight: 600; }

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 2rem 1.5rem; }
  .hero-visual { display: none; }
  .loading-layout { grid-template-columns: 1fr; gap: 1.5rem; padding: 1.5rem; }
  .loading-preview-wrap { max-width: 240px; margin: 0 auto; aspect-ratio: 1; }
  .loading-right { text-align: center; }
  .loading-steps-container { text-align: left; }
}
@media (max-width: 600px) {
  .nav { padding: .85rem 1rem; }
  .nav-right { gap: .5rem; }
  .nav-link { padding: .3rem .7rem; font-size: .78rem; }
  .nav-badge { font-size: .7rem; padding: .25rem .7rem; }
  .hero { padding: 1.5rem 1rem; }
  .hero-title { font-size: 2rem; }
  .hero-subtitle { font-size: .95rem; }
  .hero-subtitle br { display: none; }
  .step-info { padding: .85rem 1rem .5rem; }
  .step-title { font-size: 1.05rem; }
  .step-body { padding: .85rem 1rem; }
  .step-cta { padding: .75rem 1rem 1rem; }
  .step-nav { padding: .75rem 1rem 1rem; }
  .btn-did-it { padding: .95rem; font-size: 1.02rem; }
  .instructions-list li { font-size: .88rem; }
  .tut-topbar { padding: .7rem 1rem; }
  .step-img-section { height: 32vh; min-height: 160px; max-height: 240px; }
  .step-banner { font-size: .85rem; padding: .4rem; }
  .loading-title { font-size: 1.4rem; }
  .portfolio-title { font-size: 1.7rem; }
  .portfolio-page { padding: 1.25rem 1rem 3rem; }
  .portfolio-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: .85rem; }
  .p-card-thumbs { height: 110px; }
  .modal { padding: 1.75rem 1.25rem 2rem; }
  .modal-title { font-size: 1.7rem; }
  .modal-trophy { font-size: 3.5rem; }
  .filmstrip-thumb { width: 64px; height: 64px; }
  .feedback-drawer { padding: 0 1rem 1.5rem; }
  .fb-upload-btn { padding: .8rem; font-size: .95rem; }
  .upload-zone { padding: 1.75rem 1rem; }
  .btn-generate { font-size: 1.02rem; padding: .9rem 1.5rem; }
}