/* CHANG JIN TCM PTE LTD - Mobile First Design */
:root {
    --green: #1a5a3d;
    --green-dark: #0e3329;
    --green-light: #2d7a5a;
    --gold: #c9953c;
    --gold-light: #e0b45a;
    --cream: #f8f6f1;
    --white: #ffffff;
    --text: #2c2c2c;
    --text-light: #777;
    --text-muted: #aaa;
    --whatsapp: #25D366;
    --shadow: 0 2px 16px rgba(0,0,0,0.07);
    --shadow-lg: 0 8px 40px rgba(0,0,0,0.1);
    --radius: 14px;
    --radius-sm: 10px;
    --font-cn: "Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
    --font-en: Inter,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);color:var(--text);background:var(--cream);line-height:1.6;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%}

.container{max-width:1200px;margin:0 auto;padding:0 16px}
.section{padding:60px 0}
.section-header{text-align:center;margin-bottom:36px}
.section-label{font-family:var(--font-en);font-size:.7rem;font-weight:600;letter-spacing:2px;color:var(--gold);text-transform:uppercase;margin-bottom:8px;display:block}
.section-header h2{font-size:1.5rem;font-weight:800;color:var(--green);margin-bottom:6px}
.section-header p{color:var(--text-light);font-size:.88rem}

/* Buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;border-radius:50px;font-family:var(--font-cn);font-size:.95rem;font-weight:600;cursor:pointer;transition:.3s;border:2px solid transparent;justify-content:center}
.btn-primary{background:var(--green);color:var(--white);border-color:var(--green)}
.btn-primary:hover{background:var(--green-light);transform:translateY(-2px);box-shadow:var(--shadow)}
.btn-gold{background:var(--gold);color:var(--white);border-color:var(--gold)}
.btn-gold:hover{background:var(--gold-light);transform:translateY(-2px)}
.btn-wa{background:var(--whatsapp);color:var(--white);border-color:var(--whatsapp)}
.btn-wa:hover{background:#20bd5a;transform:translateY(-2px)}
.btn-outline{background:transparent;color:var(--white);border-color:rgba(255,255,255,.4)}
.btn-outline:hover{background:rgba(255,255,255,.12)}
.btn-lg{padding:16px 36px;font-size:1.05rem}

/* Bottom Nav - Mobile First */
.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:60px;background:var(--white);border-top:1px solid #eee;display:flex;align-items:center;justify-content:space-around;z-index:999;padding:0 4px;box-shadow:0 -2px 10px rgba(0,0,0,.05)}
.bottom-nav a{display:flex;flex-direction:column;align-items:center;gap:2px;font-size:.65rem;color:var(--text-light);padding:6px 12px;border-radius:8px;transition:.3s;min-width:56px}
.bottom-nav a i{font-size:1.2rem}
.bottom-nav a.active,.bottom-nav a:hover{color:var(--green)}
.bottom-nav .nav-wa-btn{background:var(--whatsapp);color:var(--white) !important;padding:8px 16px;border-radius:50px;flex-direction:row;gap:6px;font-size:.8rem;font-weight:600}
.bottom-nav .nav-wa-btn i{font-size:1rem}

/* Top Nav - Desktop */
.top-nav{display:none;position:fixed;top:0;left:0;right:0;height:64px;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);z-index:1000;border-bottom:1px solid rgba(0,0,0,.05)}
.top-nav .container{display:flex;align-items:center;justify-content:space-between;height:100%}
.top-logo{display:flex;flex-direction:column;line-height:1.2}
.top-logo-cn{font-size:1.1rem;font-weight:700;color:var(--green)}
.top-logo-en{font-family:var(--font-en);font-size:.6rem;font-weight:600;color:var(--gold);letter-spacing:2px;text-transform:uppercase}
.top-menu{display:flex;align-items:center;gap:24px}
.top-menu a{font-size:.85rem;font-weight:500;color:var(--text);transition:.3s;padding:4px 0}
.top-menu a:hover{color:var(--green)}
.top-menu .nav-cta{padding:8px 20px;background:var(--green);color:var(--white) !important;border-radius:50px}

/* Hero */
.hero{min-height:70vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--green-dark),var(--green));padding:80px 0 100px;position:relative;overflow:hidden;text-align:center}
.hero-content{position:relative;z-index:1;color:var(--white);max-width:600px;padding:0 16px}
.hero-badge{display:inline-block;background:rgba(255,255,255,.1);backdrop-filter:blur(8px);padding:6px 16px;border-radius:50px;font-size:.78rem;margin-bottom:20px;border:1px solid rgba(255,255,255,.12)}
.hero h1{font-size:2rem;font-weight:800;margin-bottom:6px;letter-spacing:2px}
.hero h1 .en{display:block;font-family:var(--font-en);font-size:.8rem;font-weight:400;opacity:.7;letter-spacing:3px;margin-top:4px}
.hero .subtitle{font-size:1rem;opacity:.85;margin-bottom:12px;font-weight:300}
.hero .desc{font-size:.85rem;opacity:.65;margin-bottom:28px;line-height:1.7}
.hero-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-actions .btn{flex:1;min-width:140px;font-size:.9rem}
.hero .hero-wa-row{margin-top:16px;display:flex;gap:10px;justify-content:center}
.hero .hero-wa-row .btn-wa{font-size:.9rem;padding:12px 24px}

/* About */
.about{background:var(--white)}
.about-grid{display:grid;gap:24px}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.feature-card{background:var(--cream);border-radius:var(--radius-sm);padding:20px 16px;text-align:center;transition:.3s}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feature-card .icon{width:44px;height:44px;background:var(--green);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1rem;margin:0 auto 10px}
.feature-card h4{font-size:.95rem;color:var(--green);margin-bottom:4px}
.feature-card p{font-size:.8rem;color:var(--text-light);line-height:1.5}

/* Therapist rename in code */
.therapist-card h4,.therapist-option .name{font-weight:600}

/* Services */
.services{background:var(--cream)}
.service-cat{margin-bottom:40px}
.service-cat:last-child{margin-bottom:0}
.cat-header{text-align:center;margin-bottom:16px}
.cat-badge{display:inline-block;padding:3px 14px;border-radius:50px;font-size:.7rem;font-weight:700;margin-bottom:8px}
.cat-badge.starter{background:#fef3c7;color:#92400e}
.cat-badge.core{background:#d1fae5;color:#065f46}
.cat-badge.premium{background:#fce4ec;color:#9b1b30}
.cat-header h3{font-size:1.05rem;color:var(--green)}
.cat-header p{font-family:var(--font-en);font-size:.68rem;color:var(--text-muted);letter-spacing:1px;text-transform:uppercase}
.service-grid{display:grid;gap:10px}
.service-card{background:var(--white);border-radius:var(--radius-sm);padding:14px 16px;display:flex;justify-content:space-between;align-items:center;gap:10px;border:1px solid rgba(0,0,0,.04);transition:.3s}
.service-card:active{transform:scale(.98)}
.service-card .info{flex:1;min-width:0}
.service-card .info h4{font-size:.88rem;margin-bottom:2px}
.service-card .info h4 .en{display:block;font-size:.68rem;font-weight:400;color:var(--text-light)}
.service-card .info .duration{font-size:.72rem;color:var(--text-muted)}
.service-card .right{text-align:right;flex-shrink:0}
.service-card .right .price{font-family:var(--font-en);font-size:1.1rem;font-weight:700;color:var(--gold);display:block}
.service-card .right .btn-book{padding:6px 14px;background:var(--green);color:var(--white);border:none;border-radius:6px;font-size:.78rem;font-weight:600;cursor:pointer;margin-top:4px;transition:.3s;width:100%}
.service-card .right .btn-book:active{opacity:.8}

/* Therapist (renamed from "therapist" in display) */
.therapist-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.therapist-card{background:var(--white);border-radius:var(--radius-sm);padding:16px 12px;text-align:center;border:1px solid rgba(0,0,0,.04);transition:.3s;cursor:pointer}
.therapist-card:active{transform:scale(.96)}
.therapist-card .avatar{width:64px;height:64px;border-radius:50%;margin:0 auto 10px;background:var(--green-light);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:1.4rem;font-weight:700}
.therapist-card h4{font-size:.9rem;margin-bottom:2px}
.therapist-card .stars{font-size:.78rem;color:#f59e0b;margin-bottom:2px}
.therapist-card .exp{font-size:.72rem;color:var(--text-muted)}

/* Reviews */
.reviews{background:var(--cream)}
.review-grid{display:grid;gap:12px}
.review-card{background:var(--white);border-radius:var(--radius-sm);padding:20px;border:1px solid rgba(0,0,0,.04)}
.review-card .header{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-size:.85rem}
.review-card .header .stars{color:#f59e0b;font-size:.8rem}
.review-card .date{font-size:.72rem;color:var(--text-muted);margin-bottom:6px}
.review-card p{font-size:.85rem;color:var(--text-light);line-height:1.6}

.review-form-wrap{background:var(--white);border-radius:var(--radius);padding:28px 20px;max-width:500px;margin:40px auto 0}
.review-form-wrap h3{color:var(--green);margin-bottom:4px;font-size:1.1rem}
.review-form-wrap>p{color:var(--text-light);font-size:.85rem;margin-bottom:20px}
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:.85rem;font-weight:600;margin-bottom:4px;color:var(--text)}
.form-group input,.form-group textarea{width:100%;padding:12px 14px;border:1px solid #ddd;border-radius:8px;font-family:var(--font-cn);font-size:.9rem;transition:.3s;background:var(--cream)}
.form-group input:focus,.form-group textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,149,60,.12)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.star-input{display:flex;gap:4px;font-size:1.4rem}

/* Location */
.location{background:var(--white)}
.location-grid{display:grid;gap:20px}
.info-card{display:flex;gap:14px;align-items:flex-start;background:var(--cream);border-radius:var(--radius-sm);padding:16px}
.info-card .icon{width:40px;height:40px;min-width:40px;background:var(--green);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.9rem}
.info-card h4{font-size:.85rem;color:var(--green);margin-bottom:2px}
.info-card p{font-size:.82rem;line-height:1.5}
.phone-link{color:var(--green);font-weight:600}
.location-map iframe{width:100%;height:300px;border-radius:var(--radius-sm);border:0}

/* Contact CTA */
.contact{background:linear-gradient(135deg,var(--green-dark),var(--green));padding:50px 0}
.contact-card{background:rgba(255,255,255,.08);backdrop-filter:blur(16px);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius);padding:36px 24px;text-align:center}
.contact-card h2{font-size:1.3rem;color:var(--white);margin-bottom:12px}
.contact-card p{color:rgba(255,255,255,.8);font-size:.9rem;margin-bottom:24px}
.contact-methods{display:flex;flex-direction:column;gap:10px;max-width:360px;margin:0 auto 16px}
.contact-methods .btn{width:100%;font-size:.9rem}
.contact-note{font-size:.78rem !important;opacity:.5 !important}

/* Footer */
.footer{background:var(--green-dark);color:rgba(255,255,255,.8);padding:40px 0 90px}
.footer-grid{display:grid;gap:28px}
.footer-brand h4{color:var(--white);font-size:1rem;margin-bottom:4px}
.footer-brand .en{font-family:var(--font-en);font-size:.75rem;color:var(--gold-light);margin-bottom:10px}
.footer-brand p{font-size:.8rem;opacity:.65;margin-bottom:2px}
.footer-links h4,.footer-contact h4{color:var(--white);font-size:.88rem;margin-bottom:12px}
.footer-links li{margin-bottom:6px}
.footer-links a{font-size:.8rem;opacity:.65;transition:.3s}
.footer-links a:hover{opacity:1;color:var(--gold-light)}
.footer-contact p{font-size:.8rem;margin-bottom:6px;opacity:.65;display:flex;gap:8px;align-items:flex-start}
.footer-contact p i{color:var(--gold);margin-top:3px}
.footer-contact a:hover{color:var(--gold-light)}
.footer-bottom{text-align:center;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);margin-top:24px}
.footer-bottom p{font-size:.75rem;opacity:.4}

/* Booking Modal - Full screen on mobile */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:2000;display:none;align-items:flex-end;justify-content:center}
.modal-overlay.show{display:flex}
.modal-container{background:var(--white);border-radius:20px 20px 0 0;width:100%;max-width:500px;max-height:92vh;overflow-y:auto;animation:slideUp .35s ease;position:relative}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
.modal-close{position:absolute;top:12px;right:12px;width:32px;height:32px;border-radius:50%;border:none;background:var(--cream);cursor:pointer;font-size:1rem;display:flex;align-items:center;justify-content:center;z-index:10}
.modal-header{padding:24px 20px 12px;text-align:center}
.modal-header h3{font-size:1.15rem;color:var(--green)}
.modal-header p{font-size:.8rem;color:var(--text-light);margin-top:2px}

/* WhatsApp Login Prompt */
.wa-login-prompt{padding:20px;text-align:center}
.wa-login-prompt p{font-size:.88rem;color:var(--text-light);margin-bottom:16px}
.wa-login-btn{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;padding:16px;background:var(--whatsapp);color:var(--white);border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:.3s}
.wa-login-btn:hover{background:#20bd5a}
.wa-login-btn i{font-size:1.4rem}
.wa-login-skip{margin-top:12px;font-size:.8rem;color:var(--text-muted);background:none;border:none;cursor:pointer;text-decoration:underline}

/* Booking Steps */
.modal-steps{padding:0 20px 12px;display:flex;gap:6px;justify-content:center}
.modal-steps .step{font-size:.72rem;color:var(--text-muted);display:flex;align-items:center;gap:4px;padding:4px 10px;border-radius:50px;background:var(--cream);transition:.3s}
.modal-steps .step.active{background:var(--green);color:var(--white)}
.modal-steps .step.done{background:#d1fae5;color:#065f46}
.modal-body{padding:0 20px 20px}
.booking-step h4{font-size:.95rem;color:var(--green);margin-bottom:12px}
.step-hint{font-size:.8rem;color:var(--text-muted);margin-bottom:12px}

.date-picker{display:flex;gap:8px;overflow-x:auto;padding-bottom:8px;margin-bottom:12px}
.date-option{min-width:64px;padding:10px 6px;border-radius:8px;background:var(--cream);border:2px solid transparent;text-align:center;cursor:pointer;flex-shrink:0}
.date-option.selected{border-color:var(--green);background:#e8f5ee}
.date-option .day-name{font-size:.65rem;color:var(--text-muted)}
.date-option .day-num{font-size:1.1rem;font-weight:700}
.date-option .day-month{font-size:.65rem;color:var(--text-muted)}

.time-slots{display:grid;grid-template-columns:repeat(4,1fr);gap:6px;margin-bottom:12px}
.time-slot{padding:8px;border-radius:6px;background:var(--cream);border:2px solid transparent;text-align:center;cursor:pointer;font-size:.82rem;transition:.3s}
.time-slot.selected{border-color:var(--green);background:#e8f5ee;color:var(--green);font-weight:600}

.therapist-picker{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:12px}
.therapist-option{padding:12px 6px;border-radius:8px;background:var(--cream);border:2px solid transparent;text-align:center;cursor:pointer;transition:.3s}
.therapist-option.selected{border-color:var(--gold);background:#fefcf5}
.therapist-option .avatar{width:44px;height:44px;border-radius:50%;margin:0 auto 6px;background:var(--green-light);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.95rem}
.therapist-option .name{font-size:.8rem;font-weight:600}
.therapist-option .stars{font-size:.7rem;color:#f59e0b}

.booking-summary{background:var(--cream);border-radius:8px;padding:14px;margin-top:10px;font-size:.82rem}
.booking-summary p{margin-bottom:3px}
.booking-summary .total{font-size:1rem;font-weight:700;color:var(--gold);margin-top:6px}

.modal-footer{padding:12px 20px 20px;display:flex;gap:10px;border-top:1px solid #f0f0f0;justify-content:center}
.modal-footer .btn{flex:1;font-size:.85rem;padding:12px}

/* Toast */
.toast-container{position:fixed;top:20px;left:50%;transform:translateX(-50%);z-index:3000;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{background:var(--white);border-radius:10px;padding:14px 20px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;min-width:260px;animation:toastIn .3s ease;border-left:4px solid var(--green);font-size:.85rem}
.toast.success{border-left-color:var(--whatsapp)}
.toast.error{border-left-color:#dc3545}
.toast .icon{font-size:1.1rem}
.toast.success .icon{color:var(--whatsapp)}
.toast.error .icon{color:#dc3545}
@keyframes toastIn{from{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}

/* Scroll Top */
.scroll-top{position:fixed;bottom:76px;right:16px;width:42px;height:42px;background:var(--green);color:var(--white);border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transform:translateY(10px);transition:.3s;z-index:998;box-shadow:var(--shadow)}
.scroll-top.show{opacity:1;transform:translateY(0)}

/* Tablet+ */
@media(min-width:768px){
    .bottom-nav{display:none}
    .top-nav{display:block}
    .section{padding:80px 0}
    .hero{min-height:90vh;padding:100px 0}
    .hero h1{font-size:3rem}
    .hero h1 .en{font-size:1rem}
    .hero .desc{font-size:.95rem}
    .feature-grid{grid-template-columns:repeat(3,1fr)}
    .service-grid{grid-template-columns:repeat(2,1fr)}
    .therapist-grid{grid-template-columns:repeat(4,1fr)}
    .review-grid{grid-template-columns:repeat(2,1fr)}
    .about-grid{grid-template-columns:1fr 1fr;gap:40px}
    .location-grid{grid-template-columns:1fr 1fr;gap:30px}
    .footer-grid{grid-template-columns:1fr 1fr 1.5fr}
    .contact-methods{flex-direction:row}
    .modal-overlay{align-items:center}
    .modal-container{border-radius:20px;max-height:85vh}
    .modal-close{top:16px;right:16px}
    .footer{padding:50px 0 40px}
}

@media(min-width:1024px){
    .service-grid{grid-template-columns:repeat(3,1fr)}
    .review-grid{grid-template-columns:repeat(3,1fr)}
}

/* WhatsApp floating badge */
.wa-float{position:fixed;bottom:76px;right:16px;width:52px;height:52px;background:var(--whatsapp);color:var(--white);border:none;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.4rem;cursor:pointer;z-index:997;box-shadow:0 4px 16px rgba(37,211,102,.4);animation:pulse 2s infinite}
@keyframes pulse{0%{box-shadow:0 4px 16px rgba(37,211,102,.4)}50%{box-shadow:0 4px 24px rgba(37,211,102,.6)}100%{box-shadow:0 4px 16px rgba(37,211,102,.4)}}
.scroll-top{bottom:140px}
@media(min-width:768px){.wa-float{bottom:24px;right:24px}.scroll-top{bottom:90px}}

/* Membership */
.membership{background:var(--bg-light,var(--cream))}
.member-benefits{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:32px}
.member-benefit{color:#fff;border-radius:12px;padding:24px 16px;text-align:center}
.member-benefit .emoji{font-size:2rem;margin-bottom:8px}
.member-benefit h4{color:#fff;margin-bottom:4px;font-size:.95rem}
.member-benefit p{font-size:.82rem;opacity:.85}

.therapist-card .avatar i{font-size:1.2rem}
/* Page SPA */
.app-page{display:none;animation:fadeIn .3s ease}
.app-page.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}


.bottom-nav a{font-size:.7rem;flex-direction:column;gap:2px;padding:4px 6px}
.bottom-nav a i{font-size:1.1rem}