/* =========================================================================
   Gearwa Beta — style.css
   Gearwa Design System 토큰 기반 라이트 모드
   ========================================================================= */

/* ── DS 토큰 ── */
:root {
  --gw-navy:      #1E3A8A;
  --gw-green:     #CCFF00;
  --gw-ice:       #F1F5F9;
  --gw-white:     #FFFFFF;
  --gw-slate:     #334155;
  --gw-muted:     #64748B;
  --gw-border:    rgba(30, 58, 138, 0.08);
  --gw-green-dim: rgba(204, 255, 0, 0.18);
  --gw-red:       #E53E3E;
  --gw-teal:      #0D9488;

  --fg-1: var(--gw-navy);
  --fg-2: var(--gw-slate);
  --fg-3: var(--gw-muted);
  --fg-on-accent: var(--gw-navy);
  --fg-on-dark:   var(--gw-white);

  --bg-page:   var(--gw-ice);
  --bg-card:   var(--gw-white);
  --bg-input:  var(--gw-ice);
  --bg-accent: var(--gw-green);
  --bg-dark:   var(--gw-navy);

  --font-sans: "Pretendard", -apple-system, "Segoe UI", sans-serif;

  --r-8:  8px;  --r-10: 10px; --r-12: 12px;
  --r-14: 14px; --r-16: 16px; --r-20: 20px;

  --shadow-card-hover: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-dropdown:   0 8px 24px rgba(0,0,0,0.12);

  --t-press: 0.15s ease;
  --t-hover: 0.2s ease;
  --t-slide: 0.25s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  min-height: 100vh;
  background: var(--bg-page);
  color: var(--fg-1);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

/* ── Screen ── */
.screen { display: none; min-height: 100vh; }
.screen.active { display: flex; flex-direction: column; }

/* ── Beta badge ── */
.beta-badge {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--gw-navy); color: var(--gw-white);
  font-size: 11px; font-weight: 700; padding: 5px 12px;
  border-radius: 20px; letter-spacing: 0.04em;
}
.beta-badge.small { font-size: 10px; padding: 4px 10px; }

/* ── Logo ── */
.logo { display: flex; align-items: center; gap: 8px; }
.logo-icon { font-size: 22px; }
.logo-text {
  font-size: 20px; font-weight: 800;
  color: var(--gw-navy); letter-spacing: -0.02em;
}
.logo.small .logo-icon { font-size: 18px; }
.logo.small .logo-text { font-size: 16px; }


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SCREEN 1 — 입력
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
#screen-input {
  align-items: center; justify-content: center;
  padding: 40px 20px; gap: 40px;
  background: var(--gw-ice);
}

.top-bar {
  position: fixed; top: 0; left: 0; right: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  background: rgba(241,245,249,0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gw-border);
  z-index: 100;
}

.hero { text-align: center; margin-top: 60px; }
.hero-eyebrow {
  font-size: 11px; font-weight: 600;
  color: var(--gw-muted); letter-spacing: 3px;
  text-transform: uppercase; margin-bottom: 14px;
}
.hero-title {
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 800; line-height: 1.15;
  letter-spacing: -0.03em; color: var(--gw-navy);
  margin-bottom: 14px;
}
.hero-sub { color: var(--fg-3); font-size: 14px; line-height: 1.6; }

/* 입력 카드 */
.input-card {
  width: 100%; max-width: 600px;
  background: var(--gw-white);
  border: 1px solid var(--gw-border);
  border-radius: var(--r-20); padding: 28px;
  box-shadow: var(--shadow-dropdown);
}
.input-wrap { display: flex; gap: 10px; margin-bottom: 10px; }

#url-input {
  flex: 1; background: var(--gw-ice);
  border: 1.5px solid transparent; border-radius: var(--r-12);
  color: var(--fg-1); font-family: var(--font-sans); font-size: 15px;
  padding: 13px 16px; outline: none;
  transition: border-color var(--t-hover), box-shadow var(--t-hover);
}
#url-input:focus {
  border-color: var(--gw-navy);
  background: var(--gw-white);
  box-shadow: 0 0 0 3px rgba(30,58,138,0.1);
}
#url-input::placeholder { color: var(--fg-3); }

.btn-primary {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--gw-navy); color: var(--gw-white);
  border: none; border-radius: var(--r-14);
  padding: 13px 22px; font-size: 14px; font-weight: 700;
  font-family: var(--font-sans); cursor: pointer; white-space: nowrap;
  transition: opacity var(--t-hover), transform var(--t-press);
}
.btn-primary:hover { opacity: 0.88; }
.btn-primary:active { transform: scale(0.97); }
.btn-primary:disabled { background: #E2E8F0; color: var(--fg-3); cursor: not-allowed; }

.btn-accent {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--gw-green); color: var(--gw-navy);
  border: none; border-radius: var(--r-14);
  padding: 11px 20px; font-size: 14px; font-weight: 700;
  font-family: var(--font-sans); cursor: pointer; white-space: nowrap;
  transition: opacity var(--t-hover), transform var(--t-press);
}
.btn-accent:hover { opacity: 0.88; }
.btn-accent:active { transform: scale(0.97); }

/* URL 힌트 */
.url-hint {
  font-size: 13px; padding: 8px 12px;
  border-radius: var(--r-8); margin-bottom: 8px;
  border: 1px solid transparent;
}
.url-hint.type-video { background: rgba(13,148,136,0.08); color: var(--gw-teal); border-color: rgba(13,148,136,0.2); }
.url-hint.type-channel { background: rgba(30,58,138,0.06); color: var(--gw-navy); border-color: rgba(30,58,138,0.15); }
.url-hint.hidden { display: none; }

.input-tip { font-size: 12px; color: var(--fg-3); text-align: center; line-height: 1.6; margin-top: 6px; }
.error-msg {
  color: var(--gw-red); background: rgba(229,62,62,0.06);
  border: 1px solid rgba(229,62,62,0.2);
  border-radius: var(--r-10); padding: 12px 16px; font-size: 13px;
  max-width: 600px; width: 100%; text-align: center;
}
.error-msg.hidden { display: none; }


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SCREEN 2 — 로딩
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
#screen-loading {
  align-items: center; justify-content: flex-start;
  background: var(--gw-ice);
}
.loading-header {
  width: 100%; padding: 16px 24px;
  border-bottom: 1px solid var(--gw-border);
  display: flex; align-items: center; justify-content: space-between;
  background: var(--gw-white);
}
.loading-card {
  width: 100%; max-width: 520px; margin: 60px auto; padding: 0 20px;
}
.channel-info { display: flex; align-items: center; gap: 14px; margin-bottom: 28px; }
.channel-avatar {
  width: 50px; height: 50px; border-radius: 50%;
  background: var(--gw-ice); border: 1.5px solid var(--gw-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px; flex-shrink: 0; overflow: hidden;
}
.channel-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.channel-name { font-size: 17px; font-weight: 700; color: var(--fg-1); margin-bottom: 3px; }
.channel-sub  { font-size: 12px; color: var(--fg-3); }

.progress-bar-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 24px; }
.progress-bar { flex: 1; height: 5px; background: var(--gw-ice); border-radius: 5px; overflow: hidden; border: 1px solid var(--gw-border); }
.progress-fill { height: 100%; width: 0%; background: var(--gw-navy); border-radius: 5px; transition: width 0.5s ease; }
.progress-pct { font-size: 12px; font-weight: 700; color: var(--gw-navy); width: 34px; text-align: right; }

.step-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 28px; }
.step { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--fg-3); transition: color 0.3s; }
.step.done   { color: var(--gw-teal); }
.step.active { color: var(--fg-1); font-weight: 500; }
.step-icon { font-size: 15px; width: 20px; flex-shrink: 0; }
.step.done   .step-icon::before { content: "✓"; font-weight: 700; color: var(--gw-teal); }
.step.active .step-icon::before { content: "…"; color: var(--gw-navy); }
.step.pending .step-icon::before { content: "○"; }
.loading-tip { font-size: 12px; color: var(--fg-3); text-align: center; line-height: 1.7; }


/* ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
   SCREEN 3 — 결과
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */
#screen-result { background: var(--gw-ice); padding-bottom: 80px; }

.result-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gw-border);
  position: sticky; top: 0; z-index: 50;
}

/* 채널 요약 */
.channel-summary {
  background: var(--gw-white);
  border-bottom: 1px solid var(--gw-border);
  padding: 24px 24px 20px;
}
.channel-meta { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.channel-avatar-lg {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--gw-ice); border: 1.5px solid var(--gw-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; flex-shrink: 0; overflow: hidden;
}
.channel-avatar-lg img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.channel-title { font-size: 20px; font-weight: 800; color: var(--fg-1); margin-bottom: 3px; }
.channel-stats { font-size: 12px; color: var(--fg-3); }

.section-label {
  font-size: 10px; font-weight: 700;
  color: var(--fg-3); letter-spacing: 2px;
  text-transform: uppercase; margin-bottom: 10px;
}

/* 주요 장비 칩 */
.gear-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.gear-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--gw-ice); border: 1px solid var(--gw-border);
  border-radius: var(--r-10); padding: 7px 12px;
  font-size: 13px; font-weight: 500; color: var(--fg-1);
  transition: border-color var(--t-hover), background var(--t-hover);
  cursor: default;
}
.gear-chip:hover { border-color: var(--gw-navy); }
.gear-chip .chip-count { color: var(--gw-navy); font-weight: 700; font-size: 11px; }

/* 탭 */
.tab-bar {
  display: flex; background: var(--gw-white);
  border-bottom: 1px solid var(--gw-border);
  padding: 0 24px;
  position: sticky; top: 53px; z-index: 40;
}
.tab {
  background: none; border: none;
  border-bottom: 2px solid transparent;
  color: var(--fg-3); font-family: var(--font-sans);
  font-size: 13px; font-weight: 500;
  padding: 12px 14px; cursor: pointer;
  display: flex; align-items: center; gap: 6px;
  transition: color var(--t-hover), border-color var(--t-hover);
  margin-bottom: -1px;
}
.tab.active { color: var(--gw-navy); border-bottom-color: var(--gw-navy); font-weight: 700; }
.tab:hover:not(.active) { color: var(--fg-2); }
.tab-count {
  background: var(--gw-ice); border-radius: 20px;
  padding: 1px 7px; font-size: 11px; font-weight: 600; color: var(--fg-3);
}
.tab.active .tab-count { background: rgba(30,58,138,0.1); color: var(--gw-navy); }

/* 영상 목록 */
.video-list { padding: 16px 24px; display: flex; flex-direction: column; gap: 10px; max-width: 780px; margin: 0 auto; width: 100%; }
.video-list.hidden { display: none; }

/* 스켈레톤 */
.skeleton-card {
  background: var(--gw-white); border: 1px solid var(--gw-border);
  border-radius: var(--r-14); padding: 16px; overflow: hidden;
  display: flex; gap: 14px; align-items: flex-start;
}
.sk { background: var(--gw-ice); border-radius: var(--r-8); animation: pulse 1.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
.sk-thumb { width: 96px; height: 58px; border-radius: var(--r-8); flex-shrink: 0; }
.sk-lines { display: flex; flex-direction: column; gap: 8px; flex: 1; }
.sk-line-a { height: 12px; width: 80%; }
.sk-line-b { height: 10px; width: 50%; }
.sk-line-c { height: 10px; width: 30%; }

/* 영상 카드 */
.video-card {
  background: var(--gw-white);
  border: 1px solid var(--gw-border);
  border-radius: var(--r-14); overflow: hidden;
  transition: border-color var(--t-hover), box-shadow var(--t-hover);
}
.video-card:hover { border-color: rgba(30,58,138,0.2); box-shadow: var(--shadow-card-hover); }
.video-card.selected { border-color: var(--gw-green); border-width: 2px; }

.video-card-header {
  display: flex; gap: 12px; padding: 14px 16px 12px;
  cursor: pointer; align-items: flex-start;
}
.video-thumb {
  width: 96px; height: 58px; border-radius: var(--r-8);
  background: var(--gw-ice); flex-shrink: 0; overflow: hidden;
}
.video-thumb img { width: 100%; height: 100%; object-fit: cover; }
.video-thumb-placeholder { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; font-size: 20px; }

.video-meta { flex: 1; min-width: 0; }
.video-title {
  font-size: 13px; font-weight: 600; color: var(--fg-1);
  line-height: 1.45; margin-bottom: 6px;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.video-badges { display: flex; align-items: center; gap: 5px; flex-wrap: wrap; }
.badge { font-size: 11px; font-weight: 600; padding: 2px 8px; border-radius: 6px; }
.badge-duration { background: var(--gw-ice); color: var(--fg-3); }
.badge-extracted { background: rgba(13,148,136,0.1); color: var(--gw-teal); border: 1px solid rgba(13,148,136,0.2); }
.badge-inferred  { background: rgba(30,58,138,0.07); color: var(--gw-navy); border: 1px solid rgba(30,58,138,0.15); }

.video-expand-icon { font-size: 11px; color: var(--fg-3); flex-shrink: 0; margin-top: 2px; transition: transform 0.2s; }
.video-card.expanded .video-expand-icon { transform: rotate(180deg); }

/* 카드 바디 */
.video-card-body {
  max-height: 0; overflow: hidden;
  transition: max-height 0.3s ease;
  border-top: 0 solid var(--gw-border);
}
.video-card.expanded .video-card-body { max-height: 1400px; border-top-width: 1px; }
.video-card-inner { padding: 14px 16px; }

/* 섹션 헤더 */
.equip-section-label {
  font-size: 10px; font-weight: 700; color: var(--fg-3);
  letter-spacing: 2px; text-transform: uppercase; margin-bottom: 8px;
}

/* 장비 행 */
.equip-item {
  display: flex; align-items: flex-start; justify-content: space-between;
  padding: 11px 12px; border-radius: var(--r-10);
  background: var(--gw-ice); border: 1px solid var(--gw-border);
  margin-bottom: 6px; gap: 10px;
  transition: border-color var(--t-hover);
}
.equip-item:hover { border-color: rgba(30,58,138,0.2); }
.equip-left { flex: 1; min-width: 0; }
.equip-name { font-size: 14px; font-weight: 700; color: var(--fg-1); margin-bottom: 2px; }
.equip-sub { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 4px; }
.equip-cat { font-size: 11px; color: var(--fg-3); }

/* 렌탈 가격 칩 */
.rental-chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--gw-green-dim); border: 1px solid rgba(30,58,138,0.1);
  border-radius: 20px; padding: 2px 8px;
  font-size: 11px; font-weight: 700; color: var(--gw-navy);
  white-space: nowrap;
}
.rental-chip .price { font-size: 12px; }
.rental-no { font-size: 11px; color: var(--fg-3); }

/* 비교하기 CTA */
.compare-cta {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--gw-navy); color: var(--gw-white);
  border: none; border-radius: var(--r-8);
  padding: 6px 12px; font-size: 12px; font-weight: 700;
  cursor: pointer; font-family: var(--font-sans);
  text-decoration: none; white-space: nowrap;
  transition: opacity var(--t-hover), transform var(--t-press);
  flex-shrink: 0;
}
.compare-cta:hover { opacity: 0.85; }
.compare-cta:active { transform: scale(0.96); }

/* AI 예측 disclaimer 박스 */
.infer-intro {
  font-size: 12px; line-height: 1.65;
  padding: 10px 13px; margin-bottom: 10px;
  background: rgba(30,58,138,0.04); border-radius: var(--r-8);
  border: 1px solid rgba(30,58,138,0.08);
  color: var(--fg-1);
}
.infer-disclaimer {
  display: block; margin-top: 3px;
  font-size: 11px; color: var(--fg-3); line-height: 1.6;
}

/* ── 대안 장비 on-demand 섹션 ── */
.alt-gear-toggle-wrap {
  margin-top: 12px; padding-top: 12px;
  border-top: 1px dashed var(--gw-border);
}
.alt-gear-toggle {
  width: 100%; background: none;
  border: 1.5px dashed rgba(30,58,138,0.2);
  border-radius: var(--r-10); color: var(--gw-navy);
  font-family: var(--font-sans); font-size: 12px; font-weight: 600;
  padding: 9px 14px; cursor: pointer; text-align: left;
  transition: border-color var(--t-hover), background var(--t-hover), color var(--t-hover);
  letter-spacing: 0.01em;
}
.alt-gear-toggle:hover { border-color: var(--gw-navy); background: rgba(30,58,138,0.04); }
.alt-gear-toggle:disabled { opacity: 0.6; cursor: not-allowed; }

.alt-gear-section {
  margin-top: 8px;
}
.alt-gear-label {
  font-size: 10px; font-weight: 700; color: var(--fg-3);
  letter-spacing: 2px; text-transform: uppercase;
  margin-bottom: 7px;
}
.alt-gear-item {
  padding: 10px 12px; border-radius: var(--r-10);
  background: rgba(204,255,0,0.06);
  border: 1px solid rgba(204,255,0,0.3);
  margin-bottom: 6px;
  transition: border-color var(--t-hover);
}
.alt-gear-item:hover { border-color: rgba(30,58,138,0.25); }
.alt-gear-name { font-size: 13px; font-weight: 700; color: var(--fg-1); margin-bottom: 3px; }
.alt-gear-sub  { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.alt-gear-desc { font-size: 11px; color: var(--fg-3); margin-top: 5px; line-height: 1.5; }

.alt-gear-loading { display: flex; flex-direction: column; gap: 8px; padding: 4px 0 8px; }
.alt-skeleton {
  height: 42px; border-radius: var(--r-10);
  background: var(--gw-ice);
  animation: pulse 1.4s ease-in-out infinite;
}
.alt-empty { font-size: 12px; color: var(--fg-3); padding: 8px 0; }

/* 추론 아이템 */
.infer-item {
  background: var(--gw-ice); border: 1px solid var(--gw-border);
  border-radius: var(--r-10); padding: 12px; margin-bottom: 8px;
  transition: border-color var(--t-hover);
}
.infer-item:hover { border-color: rgba(30,58,138,0.2); }
.infer-name { font-size: 14px; font-weight: 700; color: var(--fg-1); margin-bottom: 2px; }
.infer-desc { font-size: 12px; color: var(--fg-2); line-height: 1.55; margin: 6px 0 8px; }
.infer-sub { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 6px; }

/* ── 장비별 판정 (verdict) 설문 ── */
.verdict-row {
  display: flex; gap: 6px; margin-top: 8px; flex-wrap: wrap;
}
.verdict-btn {
  background: var(--gw-ice); border: 1.5px solid var(--gw-border);
  border-radius: var(--r-10); padding: 6px 14px; font-size: 12px; font-weight: 600;
  cursor: pointer; font-family: var(--font-sans); color: var(--fg-2);
  transition: border-color var(--t-hover), background var(--t-hover), color var(--t-hover);
}
.verdict-btn:hover { border-color: var(--gw-navy); color: var(--fg-1); }
.verdict-btn.verdict-yes.selected {
  background: var(--gw-green-dim); border-color: var(--gw-navy); color: var(--gw-navy);
}
.verdict-btn.verdict-no.selected {
  background: rgba(229,62,62,0.07); border-color: rgba(229,62,62,0.3); color: var(--gw-red);
}

.verdict-reason-wrap {
  margin-top: 6px; margin-bottom: 4px;
}
.verdict-reason-input {
  width: 100%; background: var(--gw-white); border: 1.5px solid var(--gw-border);
  border-radius: var(--r-8); color: var(--fg-1); font-family: var(--font-sans);
  font-size: 12px; padding: 7px 10px; outline: none;
  transition: border-color var(--t-hover);
}
.verdict-reason-input:focus { border-color: var(--gw-navy); }
.verdict-reason-input::placeholder { color: var(--fg-3); }

/* 설문 하단 영역 */
.survey-footer {
  margin-top: 18px; padding-top: 14px;
  border-top: 1px solid var(--gw-border);
}

/* 유저 장비 제안 */
.suggest-label { font-size: 11px; color: var(--fg-3); margin-bottom: 6px; }
.suggest-wrap { display: flex; gap: 7px; margin-bottom: 14px; }
.suggest-input {
  flex: 1; background: var(--gw-ice); border: 1.5px solid var(--gw-border);
  border-radius: var(--r-10); color: var(--fg-1); font-family: var(--font-sans);
  font-size: 13px; padding: 8px 12px; outline: none;
  transition: border-color var(--t-hover);
}
.suggest-input:focus { border-color: var(--gw-navy); background: var(--gw-white); }
.suggest-input::placeholder { color: var(--fg-3); }
.suggest-save {
  background: var(--gw-ice); border: 1.5px solid var(--gw-border);
  border-radius: var(--r-10); color: var(--fg-2);
  font-family: var(--font-sans); font-size: 12px; font-weight: 600;
  padding: 8px 14px; cursor: pointer;
  transition: border-color var(--t-hover), color var(--t-hover);
}
.suggest-save:hover { border-color: var(--gw-navy); color: var(--fg-1); }

/* 코멘트 */
.comment-section { margin-top: 14px; }
.comment-label { font-size: 11px; color: var(--fg-3); margin-bottom: 6px; }
.comment-textarea {
  width: 100%; background: var(--gw-ice);
  border: 1.5px solid var(--gw-border); border-radius: var(--r-10);
  color: var(--fg-1); font-family: var(--font-sans);
  font-size: 13px; padding: 9px 12px; outline: none;
  resize: vertical; min-height: 68px; line-height: 1.55;
  transition: border-color var(--t-hover);
}
.comment-textarea:focus { border-color: var(--gw-navy); background: var(--gw-white); }
.comment-textarea::placeholder { color: var(--fg-3); }

/* ── AI 예측 탭 헤더 (URL 추가 + 컨텍스트 안내) ── */
.infer-tab-header {
  padding: 12px 24px 0;
  max-width: 780px; margin: 0 auto; width: 100%;
}
.infer-tab-desc {
  font-size: 12px; color: var(--fg-3); line-height: 1.6;
  margin-bottom: 10px;
}

/* 추가 영상 URL 입력 (infer-tab-header 내부) */
.extra-video-input {
  flex: 1; background: var(--gw-ice); border: 1.5px solid var(--gw-border);
  border-radius: var(--r-10); color: var(--fg-1); font-family: var(--font-sans);
  font-size: 13px; padding: 10px 14px; outline: none;
  transition: border-color var(--t-hover);
}
.extra-video-input:focus { border-color: var(--gw-navy); background: var(--gw-white); }
.extra-video-input::placeholder { color: var(--fg-3); }
.extra-video-btn {
  background: var(--gw-navy); color: var(--gw-white);
  border: none; border-radius: var(--r-10);
  padding: 10px 18px; font-size: 13px; font-weight: 700;
  font-family: var(--font-sans); cursor: pointer;
  transition: opacity var(--t-hover);
  white-space: nowrap;
}
.extra-video-btn:hover { opacity: 0.85; }
.extra-video-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── 제출 바 ── */
.submit-bar {
  position: fixed; bottom: 0; left: 0; right: 0;
  background: rgba(255,255,255,0.95);
  border-top: 1px solid var(--gw-border);
  backdrop-filter: blur(10px);
  padding: 14px 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; z-index: 60;
}
.submit-tip { font-size: 12px; color: var(--fg-3); }
.btn-submit {
  background: var(--gw-navy); color: var(--gw-white);
  border: none; border-radius: var(--r-14);
  padding: 11px 24px; font-size: 14px; font-weight: 700;
  font-family: var(--font-sans); cursor: pointer;
  transition: opacity var(--t-hover), transform var(--t-press);
  white-space: nowrap;
}
.btn-submit:hover { opacity: 0.88; }
.btn-submit:active { transform: scale(0.97); }

/* ── 토스트 ── */
.toast {
  position: fixed; bottom: 80px; left: 50%; transform: translateX(-50%);
  background: var(--gw-navy); color: var(--gw-white);
  border-radius: var(--r-12); padding: 11px 20px;
  font-size: 13px; font-weight: 600;
  box-shadow: var(--shadow-dropdown);
  z-index: 200; pointer-events: none;
  transition: opacity 0.3s, transform 0.3s;
  white-space: nowrap;
}
.toast.hidden { opacity: 0; transform: translateX(-50%) translateY(6px); }
.toast.success { background: var(--gw-teal); }
.toast.error   { background: var(--gw-red); }

/* ── 반응형 ── */
@media (max-width: 560px) {
  #screen-input { padding: 28px 16px; gap: 24px; }
  .input-card { padding: 20px 16px; }
  .input-wrap { flex-direction: column; }
  .btn-primary { justify-content: center; }
  .channel-summary, .tab-bar, .video-list { padding-left: 16px; padding-right: 16px; }
  .extra-video-section { margin-left: 16px; margin-right: 16px; }
  .submit-bar { flex-direction: column; gap: 8px; }
  .btn-submit { width: 100%; text-align: center; }
}