/* =====================================================================
   «Ателье сайтов» — веб-студия (Санкт-Петербург)
   Стиль: тёмное золото. Чистый CSS, CSS-3D, анимации. Одностраничник.
   ===================================================================== */

:root {
  --bg:#14110E; --bg-2:#1B1712; --panel:#221C15; --panel-2:#2B241B;
  --gold:#C9A24B; --gold-2:#E7CE86; --cream:#ECE3D2; --muted:#BCAF95;
  --line:rgba(201,162,75,0.28); --shadow:0 18px 45px rgba(0,0,0,0.45);
  --font-head:'Playfair Display',Georgia,'Times New Roman',serif;
  --font-body:'Montserrat','Segoe UI',system-ui,sans-serif;
  --maxw:1160px; --radius:14px; --transition:0.35s ease;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:84px;}
body{font-family:var(--font-body);background:var(--bg);color:var(--cream);line-height:1.65;font-weight:400;overflow-x:hidden;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{list-style:none;}
h1,h2,h3,h4{font-family:var(--font-head);font-weight:600;line-height:1.2;color:var(--cream);}
section{scroll-margin-top:84px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.gold{color:var(--gold);}
.eyebrow{font-size:0.78rem;letter-spacing:0.28em;text-transform:uppercase;color:var(--gold);font-weight:500;display:inline-block;margin-bottom:14px;}

/* Кнопки */
.btn{display:inline-flex;align-items:center;gap:10px;padding:14px 30px;border-radius:50px;font-family:var(--font-body);font-size:0.95rem;font-weight:500;letter-spacing:0.03em;cursor:pointer;border:1px solid var(--gold);transition:transform var(--transition),box-shadow var(--transition),background var(--transition),color var(--transition);}
.btn--primary{background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#1a1509;border:none;}
.btn--primary:hover{transform:translateY(-3px);box-shadow:0 12px 30px rgba(201,162,75,0.35);}
.btn--ghost{background:transparent;color:var(--gold);}
.btn--ghost:hover{background:rgba(201,162,75,0.12);transform:translateY(-3px);}

/* Шапка */
.header{position:sticky;top:0;z-index:100;background:rgba(20,17,14,0.82);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;}
.logo{display:flex;align-items:center;gap:12px;font-family:var(--font-head);font-size:1.35rem;font-weight:700;color:var(--cream);}
.logo__mark{width:42px;height:42px;display:grid;place-items:center;border:2.5px solid var(--gold);border-radius:50%;color:var(--gold);font-size:1.45rem;background:rgba(201,162,75,0.12);box-shadow:0 0 0 1px rgba(201,162,75,0.25), inset 0 0 10px rgba(201,162,75,0.15);}
.logo small{display:block;font-family:var(--font-body);font-size:0.7rem;letter-spacing:0.14em;text-transform:uppercase;color:#CDBFA2;font-weight:500;}
.nav__links{display:flex;align-items:center;gap:28px;}
.nav__links a{font-size:0.98rem;font-weight:500;color:#CFC3A8;position:relative;padding:4px 0;transition:color var(--transition);}
.nav__links a::after{content:'';position:absolute;left:0;bottom:-2px;width:0;height:1.5px;background:var(--gold);transition:width var(--transition);}
.nav__links a:hover,.nav__links a.active{color:var(--cream);}
.nav__links a:hover::after,.nav__links a.active::after{width:100%;}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;}
.nav__toggle span{width:26px;height:2px;background:var(--gold);transition:var(--transition);}

/* Секции */
.section{padding:90px 0;}
.section--alt{background:var(--bg-2);}
.section__head{text-align:center;max-width:660px;margin:0 auto 56px;}
.section__head h2{font-size:clamp(1.9rem,4vw,2.7rem);}
.section__head p{color:var(--muted);margin-top:14px;font-size:1.06rem;font-weight:400;}
.divider{display:flex;align-items:center;justify-content:center;gap:14px;color:var(--gold);margin:18px 0;}
.divider::before,.divider::after{content:'';height:1px;width:60px;background:linear-gradient(to right,transparent,var(--gold));}
.divider::after{background:linear-gradient(to left,transparent,var(--gold));}

/* Hero */
.hero{position:relative;min-height:calc(100vh - 74px);display:flex;align-items:center;overflow:hidden;}
.hero__bg{position:absolute;inset:0;z-index:0;background:radial-gradient(circle at 78% 25%,rgba(201,162,75,0.18),transparent 45%),radial-gradient(circle at 15% 80%,rgba(201,162,75,0.10),transparent 40%);}
.hero .container{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr 0.95fr;gap:40px;align-items:center;}
.hero__title{font-size:clamp(2.3rem,6vw,4.2rem);line-height:1.08;}
.hero__title span{color:var(--gold);font-style:italic;}
.hero__text{color:var(--muted);font-size:1.08rem;margin:24px 0 34px;max-width:500px;}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap;}
.hero__stats{display:flex;gap:40px;margin-top:48px;border-top:1px solid var(--line);padding-top:26px;}
.hero__stats b{font-family:var(--font-head);font-size:1.9rem;color:var(--gold);display:block;}
.hero__stats span{font-size:0.82rem;color:var(--muted);}
.hero__visual{display:grid;place-items:center;perspective:1100px;min-height:340px;position:relative;}
.scene{width:210px;height:210px;perspective:900px;will-change:transform;}
.cube{position:relative;width:100%;height:100%;transform-style:preserve-3d;animation:cube-spin 18s infinite linear;}
.cube__face{position:absolute;width:210px;height:210px;display:grid;place-items:center;font-size:4.4rem;background:linear-gradient(160deg,var(--panel-2),var(--panel));border:1px solid var(--line);box-shadow:inset 0 0 40px rgba(0,0,0,0.4);border-radius:8px;}
.cube__face--front{transform:translateZ(105px);}
.cube__face--back{transform:rotateY(180deg) translateZ(105px);}
.cube__face--right{transform:rotateY(90deg) translateZ(105px);}
.cube__face--left{transform:rotateY(-90deg) translateZ(105px);}
.cube__face--top{transform:rotateX(90deg) translateZ(105px);}
.cube__face--bottom{transform:rotateX(-90deg) translateZ(105px);}
@keyframes cube-spin{from{transform:rotateX(-22deg) rotateY(0deg);}to{transform:rotateX(-22deg) rotateY(360deg);}}
.hero__visual::after{content:'';position:absolute;width:220px;height:40px;bottom:24px;background:radial-gradient(ellipse,rgba(201,162,75,0.35),transparent 70%);filter:blur(8px);}

/* Плитки-услуги */
.features{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;}
.feature{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;transition:transform var(--transition),box-shadow var(--transition);}
.feature:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
.feature .ico{font-size:2.2rem;margin-bottom:14px;}
.feature h3{font-size:1.2rem;margin-bottom:8px;}
.feature p{color:var(--muted);font-size:0.92rem;}

/* Тарифы */
.plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:26px;align-items:stretch;}
.plan{background:linear-gradient(165deg,var(--panel),var(--bg-2));border:1px solid var(--line);border-radius:var(--radius);padding:34px 28px;display:flex;flex-direction:column;transition:transform var(--transition),box-shadow var(--transition);}
.plan:hover{transform:translateY(-6px);box-shadow:var(--shadow);}
.plan--featured{border-color:var(--gold);}
.plan__badge{align-self:flex-start;font-size:0.68rem;letter-spacing:0.15em;text-transform:uppercase;color:#1a1509;background:linear-gradient(135deg,var(--gold),var(--gold-2));padding:4px 12px;border-radius:20px;margin-bottom:14px;}
.plan h3{font-size:1.35rem;margin-bottom:4px;}
.plan__price{font-family:var(--font-head);font-size:2.1rem;color:var(--gold);margin:8px 0 4px;}
.plan__price small{font-size:0.85rem;color:var(--muted);font-family:var(--font-body);}
.plan__desc{color:var(--muted);font-size:0.9rem;margin-bottom:18px;}
.plan ul{margin-bottom:24px;}
.plan li{font-size:0.9rem;padding:8px 0 8px 24px;position:relative;border-bottom:1px solid var(--line);}
.plan li::before{content:'✓';position:absolute;left:0;color:var(--gold);}
.plan .btn{margin-top:auto;justify-content:center;}

/* Тарифы-перевёртыши (как услуги на «Золотой нити») */
.flip{perspective:1200px;height:360px;}
.flip__inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform 0.8s cubic-bezier(.2,.8,.2,1);}
.flip:hover .flip__inner,.flip:focus-within .flip__inner{transform:rotateY(180deg);}
.flip__front,.flip__back{position:absolute;inset:0;backface-visibility:hidden;border:1px solid var(--line);border-radius:var(--radius);padding:32px 26px;display:flex;flex-direction:column;}
.flip__front{background:linear-gradient(165deg,var(--panel),var(--bg-2));align-items:flex-start;justify-content:center;}
.flip__front .ico{font-size:2.8rem;margin-bottom:14px;}
.flip__front h3{font-size:1.4rem;margin-bottom:8px;}
.flip__front p{color:var(--muted);font-size:0.95rem;}
.flip__hint{margin-top:auto;font-size:0.82rem;color:var(--gold);letter-spacing:0.05em;}
.flip__back{background:linear-gradient(165deg,var(--panel-2),var(--panel));transform:rotateY(180deg);justify-content:center;text-align:center;}
.flip__back .price{font-family:var(--font-head);font-size:2rem;color:var(--gold);}
.flip__back small{color:var(--muted);display:block;margin-bottom:6px;}
.flip__back ul{margin:12px 0 18px;text-align:left;}
.flip__back li{font-size:0.9rem;color:var(--cream);padding:6px 0 6px 22px;position:relative;}
.flip__back li::before{content:'✓';position:absolute;left:0;color:var(--gold);}
.flip--featured .flip__front,.flip--featured .flip__back{border-color:var(--gold);}

/* Как я работаю */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:24px;}
.step{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;}
.step__num{width:44px;height:44px;border-radius:50%;display:grid;place-items:center;font-family:var(--font-head);font-weight:700;color:#1a1509;background:linear-gradient(135deg,var(--gold),var(--gold-2));margin-bottom:14px;}
.step h3{font-size:1.1rem;margin-bottom:8px;}
.step p{color:var(--muted);font-size:0.9rem;}

/* Портфолио */
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;}
.work{position:relative;display:block;height:280px;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:transform var(--transition),box-shadow var(--transition);}
.work:hover{transform:translateY(-8px) scale(1.015);box-shadow:var(--shadow);}
.work__img{position:absolute;inset:0;display:grid;place-items:center;font-size:4rem;}
.work--1 .work__img{background:linear-gradient(135deg,#4a3a1e,#1a1408);}   /* Золотая нить — золото */
.work--2 .work__img{background:linear-gradient(135deg,#1f3357,#0c1526);}   /* Золотой напёрсток — синий */
.work--3 .work__img{background:linear-gradient(135deg,#3d2c1c,#1a120a);}   /* Кофейня — кофе */
.work--4 .work__img{background:linear-gradient(135deg,#4a1f26,#1c0d11);}   /* Барбершоп — красный */
.work--wide{grid-column:span 2;height:320px;}                                /* Эвакуатор и Пушистик — по половине ширины */
.work--evak .work__img{background:url(../img/evakuator.png) center top/cover no-repeat;}
.work--pushistik .work__img{background:url(../img/pushistik.png) center top/cover no-repeat;}
@media (max-width:700px){.work--wide{grid-column:auto;height:260px;}}
.work--wide .work__cap{padding:70px 28px 24px;background:linear-gradient(to top,rgba(10,8,6,0.98) 0%,rgba(10,8,6,0.9) 45%,transparent 100%);}
.work--wide .work__cap h3{font-size:1.4rem;}
.work__new{position:absolute;top:18px;left:18px;padding:6px 14px;border-radius:30px;font-size:0.75rem;font-weight:700;letter-spacing:1px;text-transform:uppercase;background:var(--gold);color:#12100c;}
.work__cap{position:absolute;left:0;right:0;bottom:0;padding:22px 20px 18px;background:linear-gradient(to top,rgba(10,8,6,0.92),transparent);}
.work__cap h3{font-size:1.1rem;}
.work__cap span{font-size:0.8rem;color:var(--gold);}

/* Отзывы */
.quotes{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:24px;}
.quote{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:30px 28px;position:relative;}
.quote::before{content:'“';font-family:var(--font-head);font-size:4rem;color:var(--gold);position:absolute;top:6px;left:18px;opacity:0.5;}
.quote p{position:relative;color:var(--cream);margin-bottom:18px;}
.quote__who{display:flex;align-items:center;gap:12px;}
.quote__ava{width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#1a1509;display:grid;place-items:center;font-family:var(--font-head);font-weight:700;}
.quote__who b{font-size:0.95rem;}
.quote__who span{font-size:0.8rem;color:var(--muted);display:block;}

/* Контакты + форма */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:46px;}
.contact__info li{display:flex;gap:16px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line);}
.contact__info .ico{font-size:1.4rem;width:46px;height:46px;display:grid;place-items:center;flex-shrink:0;border:1px solid var(--line);border-radius:12px;color:var(--gold);}
.contact__info b{display:block;font-size:0.75rem;letter-spacing:0.1em;text-transform:uppercase;color:var(--muted);margin-bottom:2px;}
.contact__info a,.contact__info span{color:var(--cream);}
.contact__cta{margin-top:24px;display:flex;gap:12px;flex-wrap:wrap;}
.chip{display:inline-flex;align-items:center;gap:8px;padding:11px 18px;border-radius:50px;border:1px solid var(--line);font-size:0.88rem;color:var(--cream);transition:var(--transition);}
.chip:hover{background:var(--gold);color:#1a1509;border-color:var(--gold);transform:translateY(-2px);}
.form{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:34px 30px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:0.85rem;margin-bottom:7px;color:var(--muted);}
.field input,.field textarea,.field select{width:100%;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:13px 15px;color:var(--cream);font-family:var(--font-body);font-size:0.95rem;transition:border var(--transition),box-shadow var(--transition);}
.field input:focus,.field textarea:focus,.field select:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(201,162,75,0.15);}
.field textarea{resize:vertical;min-height:110px;}
.form__ok{display:none;margin-top:16px;padding:14px 16px;background:rgba(201,162,75,0.12);border:1px solid var(--gold);border-radius:10px;color:var(--gold-2);font-size:0.92rem;}
.form__ok.show{display:block;}

/* CTA */
.cta{text-align:center;background:linear-gradient(135deg,var(--panel-2),var(--bg-2));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.cta h2{font-size:clamp(1.8rem,4vw,2.6rem);margin-bottom:14px;}
.cta p{color:var(--muted);max-width:520px;margin:0 auto 28px;}

/* Подвал */
.footer{background:#0F0C0A;border-top:1px solid var(--line);padding:48px 0 26px;}
.footer__grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px;margin-bottom:32px;}
.footer p{color:var(--muted);font-size:0.9rem;max-width:320px;}
.footer h4{font-size:1rem;margin-bottom:14px;color:var(--gold);}
.footer a{color:var(--muted);font-size:0.9rem;}
.footer li{margin-bottom:9px;}
.footer a:hover{color:var(--cream);}
.socials{display:flex;gap:12px;margin-top:16px;}
.socials a{width:40px;height:40px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;transition:var(--transition);}
.socials a:hover{background:var(--gold);color:#1a1509;transform:translateY(-3px);}
.footer__bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:0.82rem;color:var(--muted);}

/* Подсветка уголков карточек (как грани 3D-куба) */
.feature,.step,.form{position:relative;}
.feature::after,.step::after,.quote::after,.work::after,.flip__front::after,.flip__back::after,.form::after{
  content:'';position:absolute;inset:0;border-radius:inherit;pointer-events:none;z-index:1;
  background:
    radial-gradient(circle at 0 0,rgba(201,162,75,.55),transparent 26px),
    radial-gradient(circle at 100% 0,rgba(201,162,75,.55),transparent 26px),
    radial-gradient(circle at 0 100%,rgba(201,162,75,.55),transparent 26px),
    radial-gradient(circle at 100% 100%,rgba(201,162,75,.55),transparent 26px);
  opacity:.5;transition:opacity .4s;
}
.feature:hover::after,.step:hover::after,.quote:hover::after,.work:hover::after,.form:hover::after,.flip:hover .flip__front::after,.flip:hover .flip__back::after{opacity:1;}

/* Появление */
.reveal{opacity:0;transform:translateY(30px);transition:opacity 0.8s ease,transform 0.8s ease;}
.reveal.is-visible{opacity:1;transform:none;}
.reveal[data-delay="1"]{transition-delay:0.12s;}
.reveal[data-delay="2"]{transition-delay:0.24s;}
.reveal[data-delay="3"]{transition-delay:0.36s;}

/* Адаптив */
@media (max-width:900px){
  .hero .container{grid-template-columns:1fr;text-align:center;}
  .hero__visual{order:-1;min-height:300px;}
  .hero__text{margin-left:auto;margin-right:auto;}
  .hero__actions,.hero__stats{justify-content:center;}
  .contact{grid-template-columns:1fr;}
}
@media (max-width:760px){
  .nav__links{position:fixed;inset:74px 0 auto 0;flex-direction:column;gap:0;background:var(--bg-2);border-bottom:1px solid var(--line);padding:10px 0;clip-path:inset(0 0 100% 0);transition:clip-path var(--transition);}
  .nav__links.open{clip-path:inset(0 0 0 0);}
  .nav__links a{padding:15px 24px;width:100%;}
  .nav__toggle{display:flex;}
  .section{padding:64px 0;}
  .hero__stats{gap:24px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
  .cube{animation:none;transform:rotateX(-22deg) rotateY(-30deg);}
}

/* =====================================================================
   ИИ-ассистент ателье — плавающий чат
   ===================================================================== */
.chat-fab{position:fixed;right:22px;bottom:22px;z-index:900;width:62px;height:62px;border-radius:50%;border:none;cursor:pointer;background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#1a1509;font-size:1.6rem;display:grid;place-items:center;box-shadow:0 12px 30px rgba(201,162,75,0.4);transition:transform var(--transition),box-shadow var(--transition);}
.chat-fab:hover{transform:translateY(-3px) scale(1.05);box-shadow:0 16px 40px rgba(201,162,75,0.5);}
.chat-fab__pulse{position:absolute;inset:0;border-radius:50%;animation:chat-pulse 2.6s infinite;pointer-events:none;}
@keyframes chat-pulse{0%{box-shadow:0 0 0 0 rgba(201,162,75,0.45);}70%{box-shadow:0 0 0 16px rgba(201,162,75,0);}100%{box-shadow:0 0 0 0 rgba(201,162,75,0);}}

.chat-panel{position:fixed;right:22px;bottom:96px;z-index:901;width:min(380px,calc(100vw - 44px));height:min(560px,calc(100vh - 130px));background:var(--panel);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden;opacity:0;transform:translateY(20px) scale(0.98);pointer-events:none;transition:opacity var(--transition),transform var(--transition);}
.chat-panel.open{opacity:1;transform:none;pointer-events:auto;}

.chat-head{display:flex;align-items:center;gap:12px;padding:15px 18px;background:linear-gradient(135deg,var(--panel-2),var(--panel));border-bottom:1px solid var(--line);}
.chat-head__ava{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;border:2px solid var(--gold);color:var(--gold);font-size:1.2rem;background:rgba(201,162,75,0.12);flex:none;}
.chat-head__t{flex:1;}
.chat-head__t b{font-family:var(--font-head);font-size:1.05rem;color:var(--cream);display:block;line-height:1.2;}
.chat-head__t span{font-size:0.74rem;color:var(--muted);display:flex;align-items:center;gap:6px;}
.chat-head__t span::before{content:'';width:7px;height:7px;border-radius:50%;background:#5bbd6a;box-shadow:0 0 6px #5bbd6a;}
.chat-close{background:none;border:none;color:var(--muted);font-size:1.5rem;cursor:pointer;line-height:1;padding:2px 6px;transition:color var(--transition);}
.chat-close:hover{color:var(--cream);}

.chat-body{flex:1;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px;}
.chat-msg{max-width:82%;padding:11px 15px;border-radius:14px;font-size:0.9rem;line-height:1.5;white-space:pre-wrap;word-wrap:break-word;}
.chat-msg--bot{align-self:flex-start;background:var(--panel-2);color:var(--cream);border:1px solid var(--line);border-bottom-left-radius:4px;}
.chat-msg--user{align-self:flex-end;background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#1a1509;border-bottom-right-radius:4px;font-weight:500;}
.chat-typing{align-self:flex-start;display:flex;gap:4px;padding:12px 15px;}
.chat-typing span{width:7px;height:7px;border-radius:50%;background:var(--gold);animation:chat-blink 1.2s infinite;}
.chat-typing span:nth-child(2){animation-delay:0.2s;}
.chat-typing span:nth-child(3){animation-delay:0.4s;}
@keyframes chat-blink{0%,100%{opacity:0.3;transform:translateY(0);}50%{opacity:1;transform:translateY(-3px);}}

.chat-chips{display:flex;flex-wrap:wrap;gap:8px;padding:0 18px 12px;}
.chat-chip{font-size:0.8rem;padding:7px 13px;border-radius:50px;border:1px solid var(--line);background:transparent;color:var(--gold);cursor:pointer;font-family:var(--font-body);transition:background var(--transition);}
.chat-chip:hover{background:rgba(201,162,75,0.12);}

.chat-foot{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:var(--bg-2);}
.chat-foot input{flex:1;background:var(--bg);border:1px solid var(--line);border-radius:50px;padding:11px 16px;color:var(--cream);font-family:var(--font-body);font-size:0.9rem;outline:none;}
.chat-foot input:focus{border-color:var(--gold);}
.chat-foot button{flex:none;width:42px;height:42px;border-radius:50%;border:none;cursor:pointer;background:linear-gradient(135deg,var(--gold),var(--gold-2));color:#1a1509;font-size:1.05rem;display:grid;place-items:center;transition:transform var(--transition);}
.chat-foot button:hover{transform:scale(1.06);}
.chat-foot button:disabled{opacity:0.5;cursor:default;transform:none;}

@media (max-width:480px){
  .chat-panel{right:12px;left:12px;bottom:88px;width:auto;height:min(72vh,520px);}
  .chat-fab{right:16px;bottom:16px;}
}