:root{--primary-blue:#1976d2;--secondary-blue:#42a5f5;--light-blue:#e3f2fd;--accent-orange:#ff6b35;--text-dark:#212121;--text-medium:#424242;--text-light:#757575;--border-light:#e0e0e0;--background-light:#f5f5f5;--white:#ffffff;--success-green:#4caf50;--warning-orange:#ff9800}
.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0 50%,#f0f0f0 75%);background-size:200% 100%;animation:loading 1.5s infinite;border-radius:4px}
@keyframes loading{
0%{background-position:200% 0}
100%{background-position:-200% 0}
}
.skeleton-flight-card{background:var(--white);border:1px solid var(--border-light);border-radius:12px;padding:20px;margin-bottom:16px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.skeleton-flight-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.skeleton-airline{display:flex;align-items:center;gap:12px}
.skeleton-airline-logo{width:40px;height:40px;border-radius:6px}
.skeleton-airline-info{display:flex;flex-direction:column;gap:6px}
.skeleton-airline-name{width:120px;height:16px}
.skeleton-flight-number{width:80px;height:14px}
.skeleton-route{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.skeleton-route-time{text-align:center}
.skeleton-time{width:60px;height:24px;margin-bottom:8px}
.skeleton-airport{width:40px;height:16px}
.skeleton-route-connector{display:flex;flex-direction:column;align-items:center;flex:1;margin:0 20px}
.skeleton-duration{width:80px;height:16px;margin-bottom:8px}
.skeleton-line{width:100%;height:2px;margin-bottom:8px}
.skeleton-stops{width:100px;height:14px}
.skeleton-price-section{text-align:right}
.skeleton-price{width:120px;height:28px;margin-bottom:8px}
.skeleton-per-person{width:80px;height:14px;margin-bottom:12px}
.skeleton-button{width:140px;height:40px;border-radius:6px}
.flight-search-loading{display:flex;flex-direction:column;gap:16px}
.loading-header{background:var(--white);padding:20px;border-radius:12px;margin-bottom:20px;border:1px solid var(--border-light)}
.loading-title{width:200px;height:24px;margin-bottom:12px}
.loading-subtitle{width:150px;height:16px}
.date-form-item-right{position:relative}
button#passengerSelectorTrigger{font-size:15px;min-height:60px;max-height:60px}
.flight-search-modern{font-family:Inter,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text-dark);line-height:1.5}
.search-hero{color:var(--white);padding:40px 0 60px;position:relative}
.search-hero::before{content:'';position:absolute;top:0;right:0;bottom:0;left:0;background-size:cover}
.hero-content{position:relative;z-index:2}
.hero-title{font-size:2.5rem;font-weight:700;margin-bottom:12px;text-shadow:0 2px 4px rgba(0,0,0,.2)}
.hero-subtitle{font-size:1.2rem;font-weight:300;opacity:.9;margin-bottom:32px}
.search-form-container{background:var(--white);padding:32px;border-radius:16px;box-shadow:0 8px 32px rgba(0,0,0,.12);margin-top:20px}
.flight-type{margin-bottom:24px}
.date-inputs-form-l,.date-inputs-form-r{position:relative}
.icon-date-form:hover{transform:translateY(-50%) scale(1.1);box-shadow:0 4px 12px rgba(25,118,210,.4)}
.icon-date-form svg{fill:var(--white);width:14px;height:14px}
.btn-loading{display:none;margin-left:8px}
.spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top:2px solid var(--white);border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{
0%{transform:rotate(0)}
100%{transform:rotate(360deg)}
}
.search-results-section{min-height:100vh}
.results-header{background:var(--white);padding:24px 32px;border-radius:12px;margin-bottom:24px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.route-title{font-size:1.8rem;font-weight:700;color:var(--primary-blue);margin:0}
.filters-sidebar{background:var(--white);padding:24px;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.05);position:sticky;top:20px;height:fit-content}
.filter-section{border-bottom:1px solid var(--border-light);padding-bottom:20px;margin-bottom:20px}
.filter-section:last-child{border-bottom:none;margin-bottom:0}
.filter-title{font-size:16px;font-weight:600;color:var(--text-dark);margin-bottom:16px}
.form-check{margin-bottom:12px}
.form-check-label{font-size:14px;color:var(--text-medium);cursor:pointer}
.date-selector{background:var(--white);padding:20px;border-radius:12px;margin-bottom:24px;box-shadow:0 2px 8px rgba(0,0,0,.05)}
.date-scroll-container{display:flex;align-items:center;gap:16px}
.date-scroll-btn{width:40px;height:40px;border:2px solid var(--border-light);background:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .3s ease;color:var(--text-medium)}
.date-scroll-btn:hover{border-color:var(--primary-blue);color:var(--primary-blue)}
.date-list{display:flex;gap:12px;overflow-x:auto;scroll-behavior:smooth;padding:8px 0;flex:1}
.date-item{min-width:80px;padding:12px;text-align:center;border:2px solid var(--border-light);border-radius:12px;cursor:pointer;transition:all .3s ease;background:var(--white)}
.date-item:hover{border-color:var(--secondary-blue);background:var(--light-blue)}
.date-item.selected{border-color:var(--primary-blue);background:var(--primary-blue);color:var(--white)}
.day-name{font-size:12px;font-weight:500;text-transform:uppercase;opacity:.8}
.day-number{font-size:18px;font-weight:700;margin:4px 0}
.month{font-size:12px;font-weight:500;opacity:.8}
.flight-list{display:flex;flex-direction:column;gap:16px}
.modern-flight-card{background:var(--white);border:2px solid var(--border-light);border-radius:16px;padding:24px;transition:all .3s ease;cursor:pointer;position:relative;overflow:hidden}
.modern-flight-card:hover{border-color:var(--secondary-blue);box-shadow:0 8px 32px rgba(25,118,210,.1);transform:translateY(-2px)}
.flight-badge{position:absolute;top:0;left:24px;background:var(--accent-orange);color:var(--white);padding:6px 16px;border-radius:0 0 8px 8px;font-size:12px;font-weight:600;text-transform:uppercase}
.flight-badge.recommended{background:var(--success-green)}
.flight-badge.lowest{background:var(--warning-orange)}
.flight-card-content{display:flex;align-items:center;gap:24px}
.flight-main-section{flex:1;display:flex;align-items:center;gap:32px}
.airline-section{display:flex;align-items:center;gap:12px;min-width:180px}
.airline-logo{width:48px;height:48px;border-radius:8px;overflow:hidden}
.airline-logo img{width:100%;height:100%;object-fit:contain}
.airline-name{font-weight:600;color:var(--text-dark);font-size:16px;margin-bottom:4px}
.flight-number{font-size:14px;color:var(--text-light)}
.flight-route{display:flex;align-items:center;gap:24px;flex:1}
.arrival-section,.departure-section{text-align:center;min-width:100px}
.time-large{font-size:20px;font-weight:700;color:var(--text-dark);margin-bottom:4px}
.airport-code{font-size:16px;font-weight:600;color:var(--primary-blue);margin-bottom:2px}
.city-name{font-size:14px;color:var(--text-light)}
.route-connector{display:flex;flex-direction:column;align-items:center;flex:1;position:relative}
.duration{font-size:14px;font-weight:500;color:var(--text-medium);margin-bottom:8px}
.route-line{width:100%;height:2px;background:var(--border-light);position:relative;margin-bottom:8px}
.route-line .line{width:100%;height:100%;background:linear-gradient(90deg,var(--secondary-blue),var(--primary-blue));border-radius:2px}
.plane-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--white);width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:2px solid var(--primary-blue);font-size:14px}
.stops-info{text-align:center}
.direct-badge{background:var(--success-green);color:var(--white);padding:4px 8px;border-radius:12px;font-size:12px;font-weight:500}
.stops-badge{background:var(--warning-orange);color:var(--white);padding:4px 8px;border-radius:12px;font-size:12px;font-weight:500}
.price-section{text-align:right;min-width:200px}
.price-amount{font-size:24px;font-weight:700;color:var(--accent-orange);margin-bottom:4px}
.price-per-person{font-size:14px;color:var(--text-light);margin-bottom:16px}
.select-flight-btn{background:linear-gradient(135deg,var(--primary-blue),var(--secondary-blue));color:var(--white);border:none;padding:12px 24px;border-radius:25px;font-weight:600;cursor:pointer;transition:all .3s ease;display:flex;align-items:center;gap:8px;justify-content:center;min-width:140px}
.select-flight-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(25,118,210,.3)}
.arrow-icon{transition:transform .3s ease}
.select-flight-btn:hover .arrow-icon{transform:translateX(4px)}
.flight-extras{display:flex;gap:20px;margin-top:16px;padding-top:16px;border-top:1px solid var(--border-light);font-size:14px;color:var(--text-light)}
.flight-extras>div{display:flex;align-items:center;gap:6px}
.loading-state{text-align:center;padding:60px 20px}
.loading-content h3{color:var(--primary-blue);margin-bottom:12px}
.loading-spinner{width:48px;height:48px;border:4px solid var(--light-blue);border-top:4px solid var(--primary-blue);border-radius:50%;animation:spin 1s linear infinite;margin:0 auto 24px}
.error-state{text-align:center;padding:60px 20px}
.error-content h3{color:var(--text-medium);margin-bottom:12px}
.retry-btn{background:var(--primary-blue);color:var(--white);border:none;padding:12px 24px;border-radius:8px;font-weight:500;cursor:pointer;transition:all .3s ease}
.retry-btn:hover{background:var(--secondary-blue)}
@media (max-width:1200px){
.flight-main-section{gap:20px}
.airline-section{min-width:160px}
}
@media (max-width:992px){
.flight-card-content{flex-direction:column;align-items:stretch;gap:20px}
.flight-route{justify-content:space-between}
.price-section{text-align:center;border-top:1px solid var(--border-light);padding-top:20px}
}
@media (max-width:768px){
.hero-title{font-size:2rem}
.search-form-container{padding:24px}
.date-list{gap:8px}
.date-item{min-width:70px;padding:10px}
.modern-flight-card{padding:20px}
.flight-route{gap:16px}
.flight-extras{flex-wrap:wrap;gap:12px}
}
.toast-container{position:fixed;top:20px;right:20px;z-index:9999}
.toast{background:var(--white);border-left:4px solid var(--primary-blue);padding:16px 20px;margin-bottom:12px;border-radius:8px;box-shadow:0 4px 12px rgba(0,0,0,.15);transform:translateX(400px);transition:transform .3s ease;max-width:300px}
.toast.show{transform:translateX(0)}
.toast.success{border-left-color:var(--success-green)}
.toast.error{border-left-color:#f44336}
.toast.warning{border-left-color:var(--warning-orange)}
.toast.info{border-left-color:var(--primary-blue)}
#modernFlightSearchForm select.input{border:1px solid #ddd;border-radius:8px;padding:20px 16px;font-size:14px;background-color:#fff;width:100%;min-height:48px;color:#10061f;text-indent:30px;color:#898989;font-family:Inter;font-size:16px;font-style:normal;font-weight:500;line-height:normal}
#modernFlightSearchForm input[type=date].input{border:1px solid transparent;border-radius:8px;padding:12px 16px;font-size:14px;background-color:#fff;width:100%;min-height:48px;color:#10061f;text-indent:12px}
#modernFlightSearchForm input[type=date].input:focus,#modernFlightSearchForm select.input:focus{border-color:#155ed2;outline:0;box-shadow:0 0 0 2px rgba(21,94,210,.1)}
#swapAirports{cursor:pointer;transition:transform .3s ease;border-radius:50%;padding:8px;background:rgba(21,94,210,.1)}
#swapAirports:hover{background:rgba(21,94,210,.2);transform:scale(1.1)}
#returnDateField{transition:all .3s ease}
#returnDateField.hidden{opacity:0;transform:translateX(-10px)}
.flight-type .form-check-input{margin-right:8px}
.flight-type .form-check-label{cursor:pointer;transition:color .2s ease}
.flight-type .form-check-input:checked+label{color:#0f6563!important}
.search-btn{transition:all .2s ease}
.search-btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(21,94,210,.3)}
.search-btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.input.is-valid{border-color:#28a745;box-shadow:0 0 0 2px rgba(40,167,69,.1)}
.search-top-slide-item.today{border-color:#ff9800!important;background:linear-gradient(135deg,#fff3e0,#ffe0b2)!important;position:relative}
.search-top-slide-item.today::before{content:'Hôm nay';position:absolute;top:-8px;right:-8px;background:#ff9800;color:#fff;font-size:10px;padding:2px 6px;border-radius:10px;font-weight:600}
.search-top-slide-item.tomorrow{border-color:#4caf50!important;background:linear-gradient(135deg,#e8f5e8,#c8e6c9)!important;position:relative}
.search-top-slide-item.tomorrow::before{content:'Ngày mai';position:absolute;top:-8px;right:-8px;background:#4caf50;color:#fff;font-size:10px;padding:2px 6px;border-radius:10px;font-weight:600}
.search-top-slide-item.active{border-color:#1976d2!important;background:#e7f0ef!important;color:#fff!important;transform:scale(1.05);box-shadow:0 4px 12px rgba(25,118,210,.3)}
.search-top-slide-item.deactive{opacity:.4;cursor:not-allowed;background:#f5f5f5!important;border-color:#e0e0e0!important}
@media (max-width:768px){
.coolinput-comtainer{gap:12px}
#returnDateSeparator{display:none!important}
.date-inputs-form-r{flex-direction:column;gap:16px}
}