/* ═══════════════════════════════════════════════════════════════
   Quang Khởi — Portal Styles (Compact Single-Viewport)
   ═══════════════════════════════════════════════════════════════ */

:root {
    --forest:#1a3c34; --forest-deep:#0f2620; --forest-mid:#2d6a4f; --forest-light:#40916c;
    --gold:#c5a55a; --gold-light:#dcc07a; --gold-pale:#f0e4c4; --gold-dark:#a88b3d;
    --cream:#faf8f0; --charcoal:#2c3e2d; --slate:#6b7c6e; --white:#ffffff;
    --glass-bg:rgba(250,248,240,0.82); --glass-border:rgba(255,255,255,0.45);
    --shadow-card:0 20px 50px rgba(0,0,0,0.3); --shadow-button:0 6px 20px rgba(26,60,52,0.35);
    --font-display:'Playfair Display',Georgia,serif; --font-body:'Inter',system-ui,sans-serif;
    --ease-out-expo:cubic-bezier(0.16,1,0.3,1); --ease-smooth:cubic-bezier(0.25,0.8,0.25,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{height:100vh;height:100dvh;width:100%;overflow:hidden;font-family:var(--font-body);color:var(--charcoal);background:var(--forest-deep);-webkit-font-smoothing:antialiased}

/* ─── Background ─── */
.bg-slideshow{position:fixed;inset:0;z-index:1;overflow:hidden}
.bg-slideshow .slide{position:absolute;inset:-10%;width:120%;height:120%;background-size:cover;background-position:center;opacity:0;transition:opacity 2s ease;will-change:opacity,transform}
.bg-slideshow .slide.active{opacity:1}
@keyframes kenburns-1{0%{transform:scale(1) translate(0,0)}100%{transform:scale(1.15) translate(-2%,-1%)}}
@keyframes kenburns-2{0%{transform:scale(1.05) translate(2%,0)}100%{transform:scale(1.18) translate(-1%,-2%)}}
@keyframes kenburns-3{0%{transform:scale(1) translate(-1%,1%)}100%{transform:scale(1.12) translate(2%,-1%)}}
.slide.kb-1{animation:kenburns-1 10s ease-in-out forwards}
.slide.kb-2{animation:kenburns-2 10s ease-in-out forwards}
.slide.kb-3{animation:kenburns-3 10s ease-in-out forwards}
.bg-overlay{position:fixed;inset:0;z-index:2;background:linear-gradient(160deg,rgba(15,38,32,0.55),rgba(0,0,0,0.7))}
.particle-canvas{position:fixed;inset:0;z-index:3;pointer-events:none}

/* ─── Portal Container ─── */
.portal-container{position:relative;z-index:10;height:100%;width:100%;display:flex;justify-content:center;align-items:center;padding:12px}

/* ─── Portal Card (single viewport fit) ─── */
.portal-card{
    position:relative;background:var(--glass-bg);
    backdrop-filter:blur(20px) saturate(1.3);-webkit-backdrop-filter:blur(20px) saturate(1.3);
    width:100%;max-width:420px;border-radius:20px;padding:24px 28px 20px;
    box-shadow:var(--shadow-card);border:1px solid var(--glass-border);
    text-align:center;overflow:hidden;
    opacity:0;transform:translateY(20px) scale(0.97);
    transition:opacity 0.7s var(--ease-out-expo),transform 0.7s var(--ease-out-expo);
}
.portal-card.visible{opacity:1;transform:translateY(0) scale(1)}
.portal-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--gold-dark),var(--gold-light),var(--gold),var(--gold-light),var(--gold-dark));background-size:200% 100%;animation:shimmer-border 4s ease-in-out infinite}
@keyframes shimmer-border{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}

/* ─── Brand Header (centered hero) ─── */
.brand-header{text-align:center;margin-bottom:0;padding-top:6px}
.logo{width:48px;height:auto;filter:drop-shadow(0 2px 6px rgba(0,0,0,0.1));margin-bottom:6px}
.hotel-name{font-family:var(--font-display);font-size:17px;font-weight:700;letter-spacing:3px;color:var(--forest);text-transform:uppercase;margin:0}
.hotel-tagline{font-size:9px;font-weight:600;text-transform:uppercase;letter-spacing:3px;color:var(--gold-dark);margin:2px 0 0}

/* ─── Language Bar ─── */
.lang-bar{
    display:inline-flex;align-items:center;justify-content:center;gap:0;
    margin:12px auto 0;
    border:1px solid rgba(197,165,90,0.35);border-radius:16px;
    background:rgba(250,248,240,0.5);overflow:hidden;
    padding:2px
}
.lang-opt{
    display:inline-flex;align-items:center;justify-content:center;
    padding:3px 10px;border-radius:14px;
    font-family:var(--font-body);font-size:8px;font-weight:600;
    color:var(--slate);cursor:pointer;letter-spacing:0.3px;
    border:none;transition:all .25s ease;user-select:none;
    white-space:nowrap;line-height:1
}
.lang-opt:hover{color:var(--forest);background:rgba(197,165,90,0.08)}
.lang-opt.active{color:var(--forest-deep);background:var(--white);box-shadow:0 1px 3px rgba(0,0,0,0.1)}

/* ─── Divider ─── */
.divider{display:flex;align-items:center;justify-content:center;gap:10px;margin:10px auto}
.divider-line{width:32px;height:1px;background:linear-gradient(90deg,transparent,var(--gold),transparent)}
.divider-icon{color:var(--gold);font-size:8px;opacity:0.7}

/* ─── Welcome ─── */
.welcome-text{font-size:12px;color:var(--charcoal);line-height:1.5;margin-bottom:10px}
.welcome-text .sub{font-size:11px;color:var(--slate);display:inline-block;margin-top:2px}

/* ═══ MODE SECTIONS ═══ */
.mode-section{margin-bottom:10px}

/* ─── Ad Mode ─── */
.ad-slideshow-container{position:relative;width:100%;height:140px;border-radius:12px;overflow:hidden;margin-bottom:10px;box-shadow:0 3px 12px rgba(0,0,0,0.15)}
.ad-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1s ease}
.ad-slide.active{opacity:1}
.ad-dots{position:absolute;bottom:8px;left:50%;transform:translateX(-50%);display:flex;gap:5px;z-index:2}
.ad-dot{width:7px;height:7px;border-radius:50%;background:rgba(255,255,255,0.4);transition:all .3s}
.ad-dot.active{background:var(--white);transform:scale(1.3)}
.yt-container{position:relative;width:100%;padding-bottom:56.25%;border-radius:12px;overflow:hidden;margin-bottom:10px;box-shadow:0 3px 12px rgba(0,0,0,0.15)}
.yt-container iframe{position:absolute;inset:0;width:100%;height:100%;border:none}
.countdown-container{display:flex;align-items:center;gap:12px;justify-content:center;margin-bottom:8px}
.countdown-ring{position:relative;width:44px;height:44px;flex-shrink:0}
.countdown-ring svg{width:100%;height:100%;transform:rotate(-90deg)}
.ring-bg{fill:none;stroke:#e5e7eb;stroke-width:3}
.ring-progress{fill:none;stroke:var(--forest-mid);stroke-width:3;stroke-linecap:round;transition:stroke-dashoffset .5s ease}
.countdown-num{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:15px;font-weight:700;color:var(--forest)}
.countdown-text{font-size:12px;color:var(--slate);font-weight:500}

/* ─── DOB Mode ─── */
.dob-label{display:block;font-size:11px;font-weight:600;color:var(--slate);text-transform:uppercase;letter-spacing:1px;margin-bottom:8px}
.dob-inputs{display:flex;gap:6px;justify-content:center}
.dob-select{
    flex:1;max-width:120px;padding:8px 6px;border:2px solid rgba(197,165,90,0.3);border-radius:10px;
    font-family:var(--font-body);font-size:12px;color:var(--charcoal);background:var(--white);
    outline:none;cursor:pointer;
    -webkit-appearance:none;-moz-appearance:none;appearance:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 10 10'%3E%3Cpath fill='%236b7c6e' d='M5 7L1 3h8z'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 8px center;padding-right:22px;
    transition:border .3s
}
.dob-select option {
    color: #000;
    background: #fff;
}
.dob-select:focus{border-color:var(--forest-mid);box-shadow:0 0 0 3px rgba(45,106,79,0.1)}

/* ─── Rating Mode ─── */
.rating-prompt{font-size:12px;color:var(--charcoal);margin-bottom:8px}
.star-rating{display:flex;justify-content:center;gap:4px;margin-bottom:4px}
.star{font-size:30px;color:#d4d4d4;cursor:pointer;transition:all .2s;-webkit-text-stroke:1px #c0c0c0}
.star:hover{transform:scale(1.12)}
.star.active{color:#f59e0b;-webkit-text-stroke:1px #d97706;transform:scale(1.05);text-shadow:0 2px 6px rgba(245,158,11,0.3)}
.rating-labels{display:flex;justify-content:space-between;font-size:10px;color:var(--slate);margin-bottom:8px;padding:0 8px}
.rating-comment{width:100%;padding:8px 12px;border:2px solid rgba(197,165,90,0.25);border-radius:10px;font-family:var(--font-body);font-size:12px;color:var(--charcoal);resize:none;outline:none;transition:border .3s;background:var(--white)}
.rating-comment:focus{border-color:var(--forest-mid);box-shadow:0 0 0 3px rgba(45,106,79,.1)}
.rating-comment::placeholder{color:#b0b8b2}

/* ─── TOS ─── */
.tos-container{margin-bottom:10px;display:flex;justify-content:center}
.tos-checkbox-label{display:inline-flex;align-items:center;cursor:pointer;font-size:12px;color:var(--charcoal);user-select:none}
.tos-checkbox-label:hover{color:var(--forest)}
.tos-checkbox-label input[type="checkbox"]{position:absolute;opacity:0;cursor:pointer;height:0;width:0}
.checkbox-custom{height:18px;width:18px;min-width:18px;background:var(--white);border:2px solid var(--gold);border-radius:4px;margin-right:8px;position:relative;transition:all .3s}
.tos-checkbox-label input:checked~.checkbox-custom{background:var(--forest);border-color:var(--forest);box-shadow:0 2px 6px rgba(26,60,52,0.25)}
.checkbox-custom::after{content:'';position:absolute;display:none;left:5px;top:1px;width:5px;height:9px;border:solid var(--white);border-width:0 2px 2px 0;transform:rotate(45deg)}
.tos-checkbox-label input:checked~.checkbox-custom::after{display:block;animation:checkmark-pop .3s var(--ease-out-expo)}
@keyframes checkmark-pop{0%{transform:rotate(45deg) scale(0)}60%{transform:rotate(45deg) scale(1.2)}100%{transform:rotate(45deg) scale(1)}}
.tos-text{font-size:11.5px;line-height:1.4}
.tos-text a{color:var(--forest-mid);text-decoration:none;font-weight:600;border-bottom:1px dotted var(--forest-mid);transition:all .25s}
.tos-text a:hover{color:var(--forest);border-bottom-style:solid}

/* ─── Connect Button ─── */
.connect-btn{
    position:relative;background:linear-gradient(135deg,var(--forest),var(--forest-deep));
    color:var(--white);font-family:var(--font-body);font-size:12px;font-weight:700;
    letter-spacing:1.5px;padding:13px 24px;border:none;border-radius:50px;
    width:100%;cursor:pointer;box-shadow:var(--shadow-button);
    transition:all .4s var(--ease-smooth);display:flex;justify-content:center;
    align-items:center;gap:8px;outline:none;overflow:hidden;text-transform:uppercase;margin-bottom:6px
}
.connect-btn::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,0.1) 40%,rgba(255,255,255,0.2) 50%,rgba(255,255,255,0.1) 60%,transparent 100%);transition:left .6s ease}
.connect-btn:hover:not(:disabled)::before{left:100%}
.connect-btn:hover:not(:disabled){background:linear-gradient(135deg,var(--forest-mid),var(--forest));box-shadow:0 8px 28px rgba(26,60,52,0.4);transform:translateY(-2px)}
.connect-btn:active:not(:disabled){transform:translateY(0)}
.connect-btn:disabled{background:linear-gradient(135deg,#c8cec9,#b0b8b2);color:rgba(255,255,255,0.6);box-shadow:none;cursor:not-allowed}
.connect-btn:disabled::before{display:none}
.spinner{display:inline-block;width:16px;height:16px;border:2.5px solid rgba(255,255,255,0.25);border-radius:50%;border-top-color:var(--white);animation:spin .75s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ─── Hint ─── */
.hint-message{font-size:11px;color:#dc2626;min-height:16px;line-height:1.4;font-weight:500;transition:all .3s}
.hint-message:empty{min-height:0}

/* ─── Footer ─── */
.portal-footer{margin-top:6px;padding-top:8px;border-top:1px solid rgba(197,165,90,0.12);font-size:10px;color:var(--slate);letter-spacing:.5px;display:flex;align-items:center;justify-content:center;gap:4px}
.footer-icon{font-size:12px;opacity:0.5}

/* ═══ MODAL ═══ */
.modal{display:none;position:fixed;inset:0;z-index:100;background:rgba(15,38,32,0.65);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);justify-content:center;align-items:center;padding:20px}
.modal-content{background:var(--cream);width:100%;max-width:500px;max-height:80vh;border-radius:20px;display:flex;flex-direction:column;box-shadow:0 25px 60px rgba(0,0,0,0.4);border:1px solid rgba(197,165,90,0.2);animation:modal-enter .5s var(--ease-out-expo);overflow:hidden}
@keyframes modal-enter{from{opacity:0;transform:translateY(20px) scale(0.95)}to{opacity:1;transform:translateY(0) scale(1)}}
.modal-header{padding:20px 24px 14px;border-bottom:1px solid rgba(197,165,90,0.15);display:flex;justify-content:space-between;align-items:center}
.modal-header h2{font-family:var(--font-display);font-size:15px;font-weight:700;color:var(--forest);letter-spacing:1px}
.close-modal{width:28px;height:28px;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--slate);cursor:pointer;border-radius:50%;transition:all .25s;flex-shrink:0}
.close-modal:hover{color:var(--forest);background:rgba(26,60,52,0.08)}
.modal-body{padding:20px 24px;overflow-y:auto;font-size:12px;color:var(--charcoal);line-height:1.6;text-align:left}
.modal-body h3{font-family:var(--font-display);font-size:13px;color:var(--forest-mid);margin:14px 0 6px;font-weight:700}
.modal-body p{margin-bottom:8px}
.modal-footer{padding:14px 24px 20px;border-top:1px solid rgba(197,165,90,0.15);display:flex;justify-content:flex-end}
.modal-btn{background:linear-gradient(135deg,var(--forest),var(--forest-deep));color:var(--white);border:none;padding:11px 24px;border-radius:50px;font-family:var(--font-body);font-weight:600;cursor:pointer;font-size:12px;box-shadow:0 4px 12px rgba(26,60,52,0.25);transition:all .3s;outline:none}
.modal-btn:hover{background:linear-gradient(135deg,var(--forest-mid),var(--forest));transform:translateY(-1px)}

/* ═══ RESPONSIVE ═══ */
@media (max-width:420px) {
    .portal-card{padding:18px 18px 16px;border-radius:16px}
    .hotel-name{font-size:14px;letter-spacing:1.5px}
    .brand-compact .logo{width:36px}
    .dob-inputs{gap:4px}
    .star{font-size:26px}
}
@media (max-width:360px) {
    .dob-inputs{flex-direction:column;align-items:center}
    .dob-select{max-width:180px;width:100%}
}
@media (max-height:600px) and (orientation:landscape) {
    .portal-card{padding:14px 20px 12px}
    .divider{margin:4px auto 6px}
    .ad-slideshow-container{height:100px}
    .countdown-ring{width:36px;height:36px}
}
@media (prefers-reduced-motion:reduce) {
    *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
}
::selection{background:rgba(197,165,90,0.3);color:var(--forest-deep)}