@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Outfit:wght@400;500;700;800&family=JetBrains+Mono:wght@500&display=swap";:root{--teal: #00D084;--teal-dark: #00A368;--teal-light: #E5FBF3;--teal-mid: #33DB9D;--teal-glow: rgba(0, 208, 132, .4);--amber: #F59E0B;--amber-light: #FEF3C7;--amber-dark: #92400E;--bg: #FAFAFA;--bg-2: #F4F4F5;--surface: #FFFFFF;--surface-2: #F8F9FA;--surface-3: #F0F2F4;--border: rgba(0, 0, 0, .06);--border-2: rgba(0, 0, 0, .1);--text-primary: #09090B;--text-secondary: #52525B;--text-muted: #A1A1AA;--text-inverse: #FFFFFF;--shadow-xs: 0 1px 3px rgba(0,0,0,.06);--shadow-sm: 0 2px 8px rgba(0,0,0,.08);--shadow-md: 0 4px 20px rgba(0,0,0,.1);--shadow-lg: 0 8px 40px rgba(0,0,0,.12);--shadow-xl: 0 16px 60px rgba(0,0,0,.15);--r-xs: 4px;--r-sm: 8px;--r-md: 12px;--r-lg: 16px;--r-xl: 24px;--r-2xl: 32px;--r-full: 9999px;--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 20px;--sp-6: 24px;--sp-8: 32px;--sp-10: 40px;--sp-12: 48px;--sp-16: 64px;--font-display: "Outfit", sans-serif;--font-body: "Inter", "Noto Sans JP", sans-serif;--font-mono: "JetBrains Mono", monospace;--ease: cubic-bezier(.4, 0, .2, 1);--ease-out: cubic-bezier(0, 0, .2, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--t-fast: all .15s var(--ease);--t: all .25s var(--ease);--t-slow: all .4s var(--ease);--max-w: 1100px;--max-w-sm: 760px;--nav-h: 60px}[data-theme=dark]{--bg: #030406;--bg-2: #0A0B0E;--surface: rgba(255, 255, 255, .02);--surface-2: rgba(255, 255, 255, .04);--surface-3: rgba(255, 255, 255, .08);--border: rgba(255, 255, 255, .06);--border-2: rgba(255, 255, 255, .1);--text-primary: #FAFAFA;--text-secondary: #A1A1AA;--text-muted: #52525B;--shadow-xs: 0 1px 3px rgba(0,0,0,.3);--shadow-sm: 0 2px 8px rgba(0,0,0,.4);--shadow-md: 0 4px 20px rgba(0,0,0,.5);--shadow-lg: 0 8px 40px rgba(0,0,0,.6);--shadow-xl: 0 16px 60px rgba(0,0,0,.7);--teal-light: rgba(13, 158, 117, .15);--amber-light: rgba(245, 158, 11, .12)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%}body{font-family:var(--font-body);background:var(--bg);color:var(--text-primary);line-height:1.6;min-height:100vh;transition:background .3s var(--ease),color .3s var(--ease)}img,video{max-width:100%;display:block}a{color:inherit;text-decoration:none}button{font-family:var(--font-body);cursor:pointer;border:none;background:none}input,select,textarea{font-family:var(--font-body)}ul,ol{list-style:none}.nav{position:sticky;top:0;z-index:100;height:var(--nav-h);background:#fff9;border-bottom:1px solid var(--border);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);transition:var(--t)}[data-theme=dark] .nav{background:#03040680}.nav-inner{max-width:var(--max-w);margin:0 auto;padding:0 var(--sp-6);height:100%;display:flex;align-items:center;justify-content:space-between;gap:var(--sp-4)}.nav-logo{display:flex;align-items:center;gap:var(--sp-3);flex-shrink:0}.nav-logo-icon{width:36px;height:36px;background:linear-gradient(135deg,var(--teal),var(--teal-dark));border-radius:var(--r-md);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 8px var(--teal-glow)}.nav-logo-icon svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.nav-logo-text{font-family:var(--font-display);font-size:22px;font-weight:800;letter-spacing:-.5px}.nav-logo-text span{color:var(--teal)}.nav-links{display:flex;align-items:center;gap:var(--sp-1)}.nav-link{padding:6px 14px;border-radius:var(--r-full);font-size:14px;font-weight:500;color:var(--text-secondary);transition:var(--t-fast)}.nav-link:hover{background:var(--surface-2);color:var(--text-primary)}.nav-link.active{background:var(--teal-light);color:var(--teal-dark);font-weight:700}[data-theme=dark] .nav-link.active{color:var(--teal-mid)}.nav-actions{display:flex;align-items:center;gap:var(--sp-2)}.theme-btn{width:36px;height:36px;border-radius:var(--r-full);background:var(--surface-2);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text-secondary);font-size:18px;transition:var(--t-fast)}.theme-btn:hover{background:var(--surface-3);color:var(--text-primary)}.saved-btn{display:flex;align-items:center;gap:var(--sp-2);padding:6px 14px;border-radius:var(--r-full);font-size:13px;font-weight:600;color:var(--text-secondary);background:var(--surface-2);border:1px solid var(--border);transition:var(--t-fast)}.saved-btn:hover{border-color:var(--teal);color:var(--teal)}.saved-count{background:var(--teal);color:#fff;font-size:11px;font-weight:700;padding:1px 7px;border-radius:var(--r-full);display:none}.saved-count.visible{display:inline-block}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-2);padding:12px 24px;border-radius:var(--r-md);font-size:15px;font-weight:700;transition:var(--t);cursor:pointer;border:none;white-space:nowrap}.btn:active{transform:scale(.97)}.btn-primary{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;box-shadow:0 8px 24px var(--teal-glow);border:1px solid rgba(255,255,255,.1)}.btn-primary:hover:not(:disabled){box-shadow:0 12px 32px var(--teal-glow);transform:translateY(-2px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-secondary{background:var(--surface);color:var(--text-primary);border:1.5px solid var(--border-2)}.btn-secondary:hover{border-color:var(--teal);color:var(--teal)}.btn-ghost{background:transparent;color:var(--text-secondary);border:1.5px solid var(--border)}.btn-ghost:hover{background:var(--surface-2);color:var(--text-primary)}.btn-sm{padding:8px 16px;font-size:13px}.btn-lg{padding:16px 32px;font-size:17px;border-radius:var(--r-lg)}.btn-icon{width:40px;height:40px;padding:0;border-radius:var(--r-md);flex-shrink:0}.form-group{display:flex;flex-direction:column;gap:6px}.form-label{font-size:12px;font-weight:700;color:var(--text-secondary);letter-spacing:.04em;text-transform:uppercase}.form-input{height:48px;padding:0 14px;border-radius:var(--r-md);border:1.5px solid var(--border-2);background:var(--surface);color:var(--text-primary);font-size:15px;font-family:var(--font-body);transition:var(--t-fast);width:100%}.form-input:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px var(--teal-glow)}.form-input::placeholder{color:var(--text-muted)}.form-select{height:48px;padding:0 36px 0 14px;border-radius:var(--r-md);border:1.5px solid var(--border-2);background:var(--surface);color:var(--text-primary);font-size:15px;font-family:var(--font-body);-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%239CA3AF' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;cursor:pointer;transition:var(--t-fast);width:100%}.form-select:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px var(--teal-glow)}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:var(--sp-8);box-shadow:var(--shadow-sm);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}[data-theme=dark] .card{box-shadow:0 8px 32px #0006,inset 0 1px 1px #ffffff0d}.card-sm{border-radius:var(--r-lg);padding:var(--sp-5)}.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 12px;border-radius:var(--r-full);font-size:12px;font-weight:700;letter-spacing:.03em}.badge-teal{background:var(--teal-light);color:var(--teal-dark)}.badge-amber{background:var(--amber-light);color:var(--amber-dark)}.badge-ghost{background:var(--surface-2);color:var(--text-secondary);border:1px solid var(--border-2)}[data-theme=dark] .badge-teal{color:var(--teal-mid)}[data-theme=dark] .badge-amber{color:var(--amber)}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.skeleton{background:linear-gradient(90deg,var(--surface-2) 25%,var(--surface-3) 50%,var(--surface-2) 75%);background-size:800px 100%;animation:shimmer 1.6s infinite;border-radius:var(--r-sm)}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:24px;height:24px;border:3px solid var(--border-2);border-top-color:var(--teal);border-radius:50%;animation:spin .8s linear infinite;flex-shrink:0}.alert{display:flex;gap:var(--sp-3);padding:var(--sp-4) var(--sp-5);border-radius:var(--r-md);font-size:13px;line-height:1.6}.alert-error{background:#fef2f2;border:1px solid #FECACA;color:#7f1d1d}.alert-info{background:var(--amber-light);border:1px solid rgba(245,158,11,.3);color:var(--amber-dark)}.alert-success{background:var(--teal-light);border:1px solid rgba(13,158,117,.3);color:var(--teal-dark)}[data-theme=dark] .alert-error{background:#7f1d1d33;border-color:#fca5a533;color:#fca5a5}[data-theme=dark] .alert-info{color:var(--amber)}[data-theme=dark] .alert-success{color:var(--teal-mid)}.hidden{display:none!important}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.nowrap{white-space:nowrap}.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.text-primary{color:var(--text-primary)}.text-secondary{color:var(--text-secondary)}.text-muted{color:var(--text-muted)}.text-teal{color:var(--teal)}.text-amber{color:var(--amber-dark)}.fw-400{font-weight:400}.fw-500{font-weight:500}.fw-700{font-weight:700}.fw-800{font-weight:800}.font-display{font-family:var(--font-display)}.font-mono{font-family:var(--font-mono)}@keyframes fadeUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes slideInRight{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.anim-fade-up{animation:fadeUp .5s var(--ease-out) both}.anim-fade-in{animation:fadeIn .4s var(--ease-out) both}.anim-scale-in{animation:scaleIn .3s var(--ease-spring) both}.delay-1{animation-delay:.05s}.delay-2{animation-delay:.1s}.delay-3{animation-delay:.15s}.delay-4{animation-delay:.2s}.delay-5{animation-delay:.25s}.reveal{opacity:0;transform:translateY(24px);transition:opacity .6s var(--ease-out),transform .6s var(--ease-out)}.reveal.revealed{opacity:1;transform:translateY(0)}.footer{text-align:center;padding:var(--sp-10) var(--sp-6) var(--sp-8);font-size:12px;color:var(--text-muted);line-height:1.9;border-top:1px solid var(--border)}.footer a{color:var(--teal)}.footer a:hover{text-decoration:underline}.toast-container{position:fixed;bottom:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:8px;pointer-events:none}.toast{display:flex;align-items:center;gap:10px;padding:12px 18px;border-radius:var(--r-lg);background:var(--surface);border:1px solid var(--border-2);box-shadow:var(--shadow-lg);font-size:14px;font-weight:500;pointer-events:auto;animation:slideInRight .3s var(--ease-spring);color:var(--text-primary)}.toast-success{border-left:3px solid var(--teal)}.toast-error{border-left:3px solid #EF4444}.toast-icon{font-size:18px;flex-shrink:0}@media (max-width: 640px){:root{--nav-h: 56px}.nav-links{display:none}.nav-inner{padding:0 var(--sp-4)}}.planner-wrap{max-width:820px;margin:0 auto;padding:var(--sp-8) var(--sp-6) var(--sp-16)}.planner-header{display:flex;align-items:flex-start;gap:var(--sp-5);margin-bottom:var(--sp-8);padding-bottom:var(--sp-6);border-bottom:1px solid var(--border)}.planner-header-icon{width:48px;height:48px;border-radius:var(--r-lg);background:linear-gradient(135deg,var(--teal),var(--teal-dark));display:flex;align-items:center;justify-content:center;font-size:24px;flex-shrink:0;box-shadow:0 4px 16px var(--teal-glow)}.planner-header-title{font-family:var(--font-display);font-size:26px;font-weight:800;letter-spacing:-.5px;margin-bottom:4px}.planner-header-sub{font-size:14px;color:var(--text-secondary)}.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--r-xl);padding:var(--sp-8);margin-bottom:var(--sp-5);box-shadow:var(--shadow-sm)}.form-card-title{display:flex;align-items:center;gap:var(--sp-3);font-size:13px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);margin-bottom:var(--sp-6);padding-bottom:var(--sp-4);border-bottom:1px solid var(--border)}.form-card-title-icon{width:28px;height:28px;border-radius:var(--r-sm);background:var(--teal-light);display:flex;align-items:center;justify-content:center;font-size:16px}[data-theme=dark] .form-card-title-icon{background:#0d9e7526}.trip-toggle{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-2);margin-bottom:var(--sp-6);background:var(--surface-2);border-radius:var(--r-lg);padding:5px;border:1px solid var(--border)}.trip-toggle-btn{height:44px;border-radius:var(--r-md);background:transparent;border:none;display:flex;align-items:center;justify-content:center;gap:var(--sp-2);font-size:14px;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:var(--t-fast)}.trip-toggle-btn:hover{color:var(--text-primary)}.trip-toggle-btn.active{background:var(--surface);color:var(--teal-dark);box-shadow:var(--shadow-sm)}[data-theme=dark] .trip-toggle-btn.active{background:var(--surface-3);color:var(--teal-mid)}.airport-input-wrap{position:relative}.airport-input-inner{position:relative;display:flex;align-items:center}.airport-input-icon{position:absolute;left:14px;font-size:18px;color:var(--text-muted);pointer-events:none;z-index:1}.airport-input{padding-left:42px;padding-right:90px}.airport-code-badge{position:absolute;right:12px;background:var(--teal-light);color:var(--teal-dark);font-family:var(--font-mono);font-size:12px;font-weight:700;padding:3px 9px;border-radius:var(--r-sm);pointer-events:none;display:none}.airport-code-badge.visible{display:block}[data-theme=dark] .airport-code-badge{color:var(--teal-mid)}.airport-dropdown{position:absolute;top:calc(100% + 6px);left:0;right:0;z-index:200;background:var(--surface);border:1.5px solid var(--border-2);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);overflow:hidden;display:none}.airport-dropdown.open{display:block}.airport-option{display:flex;align-items:center;gap:var(--sp-3);padding:11px 14px;cursor:pointer;transition:background .1s;border-bottom:1px solid var(--border)}.airport-option:last-child{border-bottom:none}.airport-option:hover,.airport-option.highlighted{background:var(--surface-2)}.ao-flag{font-size:22px;line-height:1;flex-shrink:0}.ao-info{flex:1;min-width:0}.ao-label{font-size:14px;font-weight:500;color:var(--text-primary)}.ao-sub{font-size:12px;color:var(--text-muted);margin-top:1px}.ao-code{font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--teal-dark);background:var(--teal-light);padding:3px 9px;border-radius:var(--r-xs);flex-shrink:0}[data-theme=dark] .ao-code{color:var(--teal-mid)}.origin-dest-wrap{display:grid;grid-template-columns:1fr 48px 1fr;gap:var(--sp-3);align-items:end;margin-bottom:var(--sp-4)}.swap-btn{width:48px;height:48px;border-radius:var(--r-md);background:var(--surface-2);border:1.5px solid var(--border-2);display:flex;align-items:center;justify-content:center;font-size:22px;cursor:pointer;transition:var(--t-fast);color:var(--text-secondary);flex-shrink:0;align-self:flex-end;margin-bottom:0}.swap-btn:hover{background:var(--teal-light);border-color:var(--teal);color:var(--teal);transform:rotate(90deg)}.date-range-wrap{display:grid;grid-template-columns:1fr 24px 1fr;gap:var(--sp-2);align-items:end}.date-sep{text-align:center;color:var(--text-muted);font-size:18px;padding-bottom:12px}.slider-wrap{margin-bottom:var(--sp-5)}.slider-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--sp-3)}.slider-label{font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--text-secondary)}.slider-value{font-family:var(--font-mono);font-size:14px;font-weight:700;color:var(--teal-dark);background:var(--teal-light);padding:3px 12px;border-radius:var(--r-full)}[data-theme=dark] .slider-value{color:var(--teal-mid)}.days-slider{width:100%;height:6px;accent-color:var(--teal);cursor:pointer;border-radius:3px;-moz-appearance:none;appearance:none;-webkit-appearance:none;background:var(--surface-3);transition:var(--t-fast)}.days-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:20px;height:20px;border-radius:50%;background:var(--teal);cursor:pointer;box-shadow:0 2px 8px var(--teal-glow);transition:var(--t-fast)}.days-slider::-webkit-slider-thumb:hover{transform:scale(1.2)}.style-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:var(--sp-2);margin-bottom:var(--sp-5)}.style-pill{padding:14px 10px 12px;border-radius:var(--r-lg);border:1.5px solid var(--border-2);background:var(--surface-2);cursor:pointer;text-align:center;transition:var(--t-fast);-webkit-user-select:none;user-select:none}.style-pill:hover{border-color:var(--teal);background:var(--surface)}.style-pill.on{border-color:var(--teal);background:var(--teal-light)}[data-theme=dark] .style-pill.on{background:#0d9e751f}.style-pill-icon{font-size:24px;display:block;margin-bottom:6px}.style-pill-label{font-size:11px;font-weight:600;color:var(--text-secondary)}.style-pill.on .style-pill-label{color:var(--teal-dark)}[data-theme=dark] .style-pill.on .style-pill-label{color:var(--teal-mid)}.advanced-toggle{display:flex;align-items:center;justify-content:space-between;width:100%;padding:var(--sp-3) 0;font-size:13px;font-weight:600;color:var(--text-secondary);border:none;background:none;cursor:pointer;border-top:1px solid var(--border);transition:var(--t-fast)}.advanced-toggle:hover{color:var(--teal)}.advanced-chevron{transition:transform .3s var(--ease);font-size:18px}.advanced-toggle.open .advanced-chevron{transform:rotate(180deg)}.advanced-content{display:none;padding-top:var(--sp-4)}.advanced-content.open{display:block}.search-btn-wrap{margin-top:var(--sp-6)}.btn-search{width:100%;height:56px;font-size:17px;letter-spacing:.02em;border-radius:var(--r-lg)}.btn-search .btn-spinner{width:20px;height:20px;border-width:2.5px}.field-error{font-size:12px;color:#ef4444;margin-top:4px;display:none}.field-error.visible{display:block}.form-input.error,.form-select.error{border-color:#ef4444;box-shadow:0 0 0 3px #ef44441f}.form-row{display:grid;gap:var(--sp-4);margin-bottom:var(--sp-4)}.form-row.col2{grid-template-columns:1fr 1fr}.form-row.col3{grid-template-columns:1fr 1fr 1fr}@media (max-width: 640px){.planner-wrap{padding:var(--sp-5) var(--sp-4) var(--sp-12)}.form-card{padding:var(--sp-5)}.origin-dest-wrap{grid-template-columns:1fr}.swap-btn{display:none}.form-row.col2,.form-row.col3{grid-template-columns:1fr}.date-range-wrap{grid-template-columns:1fr 20px 1fr}.style-grid{grid-template-columns:repeat(auto-fill,minmax(100px,1fr))}}