/* ============================================================
   Taller Mecánico Chávez — style.css
   Industrial moderno · Roboto Slab + Source Sans 3
   Azul mecánico #1565C0 · Gris acero #607D8B 
   Naranja señal #FF6F00 · Fondo #F5F7FA
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Roboto+Slab:wght@400;700;900&family=Source+Sans+3:ital,wght@0,400;0,600;0,700;1,400&display=swap');

/* ---------- Custom properties ---------- */
:root{
  --blue:#1565C0;
  --blue-dark:#0D47A1;
  --gray:#607D8B;
  --gray-light:#B0BEC5;
  --gray-dark:#37474F;
  --orange:#FF6F00;
  --orange-hover:#E65100;
  --bg:#F5F7FA;
  --white:#FFFFFF;
  --black:#212121;
  --font-heading:'Roboto Slab',serif;
  --font-body:'Source Sans 3',sans-serif;
  --container:1120px;
  --pad:20px;
  --radius:0;
  --shadow:0 2px 8px rgba(0,0,0,.12);
  --transition:.25s ease;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font-body);font-size:1rem;line-height:1.65;color:var(--black);background:var(--bg)}
img,svg{display:block;max-width:100%;height:auto}
a{color:var(--blue);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--orange)}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;color:inherit;border:none;outline:none}
button{cursor:pointer}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2;color:var(--gray-dark)}

/* ---------- Utility ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 var(--pad)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}
.section{padding:4rem 0}
.section--alt{background:var(--white)}
.text-center{text-align:center}
.btn{display:inline-block;padding:.85rem 2rem;font-weight:700;font-family:var(--font-heading);text-transform:uppercase;letter-spacing:.5px;border:none;cursor:pointer;transition:background var(--transition),transform var(--transition)}
.btn--orange{background:var(--orange);color:var(--white)}
.btn--orange:hover{background:var(--orange-hover);color:var(--white);transform:translateY(-2px)}
.btn--blue{background:var(--blue);color:var(--white)}
.btn--blue:hover{background:var(--blue-dark);color:var(--white);transform:translateY(-2px)}
.btn--outline{background:transparent;border:2px solid var(--blue);color:var(--blue)}
.btn--outline:hover{background:var(--blue);color:var(--white)}
.btn--sm{padding:.55rem 1.2rem;font-size:.875rem}

/* ---------- Image placeholder ---------- */
.img-placeholder{display:flex;align-items:center;justify-content:center;min-height:220px;color:var(--white);font-weight:600;font-size:1.1rem;text-align:center;padding:2rem;font-family:var(--font-body)}

/* ---------- Header / Navbar ---------- */
.header{position:sticky;top:0;z-index:1000;background:var(--gray-dark);box-shadow:0 2px 12px rgba(0,0,0,.25)}
.header .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.header__logo{display:flex;align-items:center;gap:.5rem;color:var(--white);font-family:var(--font-heading);font-weight:900;font-size:1.25rem}
.header__logo img,.header__logo svg{height:36px;width:auto}
.header__logo:hover{color:var(--orange)}
.nav__list{display:flex;gap:1.5rem;align-items:center}
.nav__link{color:var(--gray-light);font-weight:600;font-size:.9rem;text-transform:uppercase;letter-spacing:.3px;padding:.25rem 0;border-bottom:2px solid transparent;transition:color var(--transition),border-color var(--transition)}
.nav__link:hover,.nav__link--active{color:var(--white);border-color:var(--orange)}
.nav__toggle{display:none;background:none;border:none;color:var(--white);font-size:1.5rem;padding:.25rem}

/* ---------- Hero split ---------- */
.hero{background:var(--gray-dark);color:var(--white);overflow:hidden}
.hero .container{display:grid;grid-template-columns:1fr 1fr;gap:2rem;align-items:center;min-height:480px;padding-top:3rem;padding-bottom:3rem}
.hero__content{display:flex;flex-direction:column;gap:1.25rem}
.hero__badge{display:inline-block;background:var(--orange);color:var(--white);font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:1px;padding:.35rem .8rem;width:fit-content}
.hero__title{font-size:clamp(2rem,5vw,3.2rem);font-weight:900;line-height:1.1;color:var(--white)}
.hero__subtitle{font-size:1.15rem;color:var(--gray-light);line-height:1.5;max-width:480px}
.hero__actions{display:flex;gap:1rem;flex-wrap:wrap}
.hero__img{border-left:4px solid var(--orange)}
.hero__img .img-placeholder{min-height:360px;font-size:1.2rem}

/* ---------- Section headers ---------- */
.section__header{margin-bottom:2.5rem}
.section__header h2{font-size:clamp(1.6rem,3vw,2.4rem);margin-bottom:.5rem}
.section__header p{color:var(--gray);max-width:640px;font-size:1.05rem}
.section__header--center{text-align:center}
.section__header--center p{margin:0 auto}
.section__bar{width:60px;height:4px;background:var(--orange);margin-top:.75rem}
.section__header--center .section__bar{margin:0.75rem auto 0}

/* ---------- Services grid ---------- */
.services-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}
.service-card{background:var(--white);border-left:4px solid var(--blue);padding:1.5rem;box-shadow:var(--shadow);transition:transform var(--transition),box-shadow var(--transition)}
.service-card:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(0,0,0,.15)}
.service-card__title{font-size:1.15rem;margin-bottom:.5rem;display:flex;align-items:center;gap:.5rem}
.service-card__price{font-family:var(--font-heading);font-size:1.5rem;font-weight:900;color:var(--orange);margin-bottom:.5rem}
.service-card__desc{color:var(--gray);font-size:.92rem;line-height:1.5;margin-bottom:1rem}
.service-card__cta{font-size:.85rem}

/* ---------- About split ---------- */
.about-split{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.about-split__text h2{margin-bottom:1rem}
.about-split__text p{color:var(--gray);margin-bottom:1rem}
.about-split__stats{display:flex;gap:2rem;margin-top:1.5rem}
.stat{text-align:center}
.stat__number{font-family:var(--font-heading);font-size:2rem;font-weight:900;color:var(--blue)}
.stat__label{font-size:.85rem;color:var(--gray)}

/* ---------- Gallery ---------- */
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}
.gallery-item{position:relative;overflow:hidden;cursor:pointer}
.gallery-item .img-placeholder{min-height:200px;transition:transform var(--transition)}
.gallery-item:hover .img-placeholder{transform:scale(1.03)}
.gallery-item__caption{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.7));color:var(--white);padding:.75rem 1rem;font-size:.85rem}

/* ---------- Blog cards ---------- */
.blog-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}
.blog-card{background:var(--white);box-shadow:var(--shadow);overflow:hidden;transition:transform var(--transition)}
.blog-card:hover{transform:translateY(-3px)}
.blog-card__img .img-placeholder{min-height:180px}
.blog-card__body{padding:1.25rem}
.blog-card__date{font-size:.8rem;color:var(--gray);text-transform:uppercase;letter-spacing:.5px}
.blog-card__title{font-size:1.15rem;margin:.5rem 0;line-height:1.3}
.blog-card__title a{color:var(--gray-dark)}
.blog-card__title a:hover{color:var(--blue)}
.blog-card__excerpt{font-size:.92rem;color:var(--gray);line-height:1.5;margin-bottom:1rem}
.blog-card__link{color:var(--orange);font-weight:700;font-size:.9rem;text-transform:uppercase;letter-spacing:.3px}

/* ---------- Article ---------- */
.article{max-width:760px;margin:0 auto}
.article__meta{font-size:.85rem;color:var(--gray);margin-bottom:1.5rem}
.article__img{margin-bottom:2rem}
.article__img .img-placeholder{min-height:300px}
.article h1{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:1rem}
.article h2{font-size:1.3rem;margin:2rem 0 .75rem;color:var(--blue)}
.article h3{font-size:1.1rem;margin:1.5rem 0 .5rem}
.article p{margin-bottom:1rem;color:var(--gray-dark)}
.article ul,.article ol{margin:0 0 1rem 1.5rem;color:var(--gray-dark)}
.article ul{list-style:disc}
.article ol{list-style:decimal}
.article li{margin-bottom:.4rem}
.article a{color:var(--blue);text-decoration:underline}
.article blockquote{border-left:4px solid var(--orange);padding:.75rem 1.25rem;margin:1.5rem 0;background:var(--white);color:var(--gray)}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem}
.contact-info{display:flex;flex-direction:column;gap:1.5rem}
.contact-info__item{display:flex;gap:1rem;align-items:flex-start}
.contact-info__icon{flex-shrink:0;width:44px;height:44px;background:var(--blue);color:var(--white);display:flex;align-items:center;justify-content:center;font-size:1.2rem}
.contact-info__text h3{font-size:1rem;margin-bottom:.2rem}
.contact-info__text p,.contact-info__text a{color:var(--gray);font-size:.95rem}
.form{display:flex;flex-direction:column;gap:1rem}
.form__group{display:flex;flex-direction:column;gap:.35rem}
.form__group label{font-weight:600;font-size:.9rem;color:var(--gray-dark)}
.form__group input,.form__group textarea,.form__group select{padding:.75rem 1rem;border:2px solid var(--gray-light);background:var(--white);transition:border-color var(--transition)}
.form__group input:focus,.form__group textarea:focus,.form__group select:focus{border-color:var(--blue);box-shadow:0 0 0 3px rgba(21,101,192,.15)}
.form__group textarea{resize:vertical;min-height:120px}
.form__privacy{font-size:.82rem;color:var(--gray);line-height:1.4}
.form__privacy a{text-decoration:underline}
.form__msg{padding:.75rem 1rem;font-weight:600;display:none}
.form__msg--ok{background:#E8F5E9;color:#2E7D32;display:block}
.form__msg--err{background:#FFEBEE;color:#C62828;display:block}

/* ---------- FAQ ---------- */
.faq-list{max-width:760px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--gray-light)}
.faq-item__q{display:flex;align-items:center;justify-content:space-between;width:100%;background:none;padding:1.25rem 0;font-family:var(--font-heading);font-size:1.05rem;font-weight:700;color:var(--gray-dark);text-align:left;cursor:pointer;gap:1rem}
.faq-item__q::after{content:'+';font-size:1.5rem;font-weight:400;color:var(--orange);transition:transform var(--transition);flex-shrink:0}
.faq-item__q[aria-expanded="true"]::after{content:'−'}
.faq-item__a{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease}
.faq-item__a p{padding:0 0 1.25rem;color:var(--gray);line-height:1.6}

/* ---------- Legal pages ---------- */
.legal{max-width:760px;margin:0 auto;padding-bottom:3rem}
.legal h1{font-size:clamp(1.5rem,3vw,2rem);margin-bottom:1.5rem}
.legal h2{font-size:1.2rem;margin:2rem 0 .75rem;color:var(--blue)}
.legal h3{font-size:1.05rem;margin:1.5rem 0 .5rem}
.legal p{margin-bottom:1rem;color:var(--gray-dark);line-height:1.6}
.legal ul,.legal ol{margin:0 0 1rem 1.5rem;color:var(--gray-dark)}
.legal ul{list-style:disc}
.legal ol{list-style:decimal}
.legal li{margin-bottom:.4rem}
.legal a{color:var(--blue);text-decoration:underline}
.legal table{width:100%;border-collapse:collapse;margin:1rem 0}
.legal th,.legal td{border:1px solid var(--gray-light);padding:.5rem .75rem;text-align:left;font-size:.9rem}
.legal th{background:var(--blue);color:var(--white)}

/* ---------- 404 ---------- */
.page-404{text-align:center;padding:6rem var(--pad)}
.page-404 h1{font-size:clamp(4rem,10vw,8rem);color:var(--blue);line-height:1}
.page-404 h2{font-size:1.5rem;margin:1rem 0}
.page-404 p{color:var(--gray);max-width:480px;margin:0 auto 2rem}

/* ---------- Search ---------- */
.search-bar{display:flex;gap:.5rem;max-width:480px;margin:0 auto 2rem}
.search-bar input{flex:1;padding:.65rem 1rem;border:2px solid var(--gray-light);background:var(--white)}
.search-bar input:focus{border-color:var(--blue)}
.search-bar button{padding:.65rem 1.5rem;background:var(--blue);color:var(--white);font-weight:700;border:none}
.search-results{margin-top:1rem}
.search-results__item{padding:.75rem 0;border-bottom:1px solid var(--gray-light)}
.search-results__item a{font-weight:700;color:var(--gray-dark)}
.search-results__item p{font-size:.9rem;color:var(--gray)}
.search-no-results{text-align:center;color:var(--gray);padding:2rem 0}

/* ---------- Catalog filter ---------- */
.catalog-filter{display:flex;gap:.75rem;flex-wrap:wrap;margin-bottom:2rem}
.catalog-filter .btn{font-size:.82rem;padding:.5rem 1rem}
.catalog-filter .btn.active{background:var(--blue);color:var(--white)}

/* ---------- Quoter ---------- */
.quoter{background:var(--white);padding:2rem;box-shadow:var(--shadow);max-width:520px;margin:0 auto}
.quoter h3{margin-bottom:1rem}
.quoter select,.quoter input{width:100%;padding:.65rem 1rem;border:2px solid var(--gray-light);margin-bottom:1rem;background:var(--white)}
.quoter__result{font-family:var(--font-heading);font-size:1.8rem;font-weight:900;color:var(--orange);text-align:center;padding:1rem 0}
.quoter__note{font-size:.82rem;color:var(--gray);text-align:center}

/* ---------- Footer ---------- */
.footer{background:var(--gray-dark);color:var(--gray-light);padding:3rem 0 0}
.footer a{color:var(--gray-light)}
.footer a:hover{color:var(--orange)}
.footer__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:2rem;margin-bottom:2rem}
.footer__col h4{color:var(--white);font-family:var(--font-heading);margin-bottom:1rem;font-size:1rem}
.footer__col p,.footer__col li{font-size:.9rem;margin-bottom:.4rem;line-height:1.5}
.footer__col li a{display:inline-flex;align-items:center;gap:.4rem}
.footer__social{display:flex;gap:.75rem;margin-top:.5rem}
.footer__social a{width:36px;height:36px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;transition:background var(--transition)}
.footer__social a:hover{background:var(--orange)}
.footer__social svg{width:18px;height:18px;fill:var(--white)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.1);padding:1.25rem 0;text-align:center;font-size:.82rem}
.footer__bottom p{margin-bottom:.2rem}

/* ---------- Floating buttons ---------- */
.floating{position:fixed;bottom:1.25rem;right:1.25rem;display:flex;flex-direction:column;gap:.75rem;z-index:900}
.floating__btn{width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--white);box-shadow:0 4px 12px rgba(0,0,0,.25);transition:transform var(--transition)}
.floating__btn:hover{transform:scale(1.1);color:var(--white)}
.floating__btn--wa{background:#25D366}
.floating__btn--tel{background:var(--blue)}
.floating__btn svg{width:26px;height:26px;fill:currentColor}

/* ---------- Cookie banner ---------- */
.cookie-banner{position:fixed;bottom:0;left:0;right:0;z-index:1100;background:var(--gray-dark);color:var(--white);padding:1rem 0;box-shadow:0 -2px 12px rgba(0,0,0,.3);display:none}
.cookie-banner.show{display:block}
.cookie-banner .container{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.cookie-banner p{flex:1;font-size:.88rem;line-height:1.4;min-width:200px}
.cookie-banner p a{color:var(--orange);text-decoration:underline}
.cookie-banner__actions{display:flex;gap:.5rem;flex-shrink:0}
.cookie-banner__actions button{padding:.55rem 1.2rem;font-size:.85rem;font-weight:700;border:none;cursor:pointer}
.cookie-banner__accept{background:var(--orange);color:var(--white)}
.cookie-banner__reject{background:transparent;border:1px solid var(--gray-light);color:var(--white)}

/* ---------- Chatbot ---------- */
.chatbot{position:fixed;bottom:5.5rem;right:1.25rem;width:340px;max-height:480px;background:var(--white);box-shadow:0 8px 30px rgba(0,0,0,.2);z-index:950;display:none;flex-direction:column;border:2px solid var(--blue)}
.chatbot.open{display:flex}
.chatbot__header{background:var(--blue);color:var(--white);padding:.75rem 1rem;display:flex;align-items:center;justify-content:space-between}
.chatbot__header h4{font-size:.95rem;font-family:var(--font-heading)}
.chatbot__header button{background:none;border:none;color:var(--white);font-size:1.3rem;cursor:pointer;padding:0 .25rem}
.chatbot__body{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.75rem;max-height:320px}
.chatbot__msg{max-width:85%;padding:.6rem .85rem;font-size:.88rem;line-height:1.4}
.chatbot__msg--bot{background:var(--bg);color:var(--gray-dark);align-self:flex-start;border-left:3px solid var(--blue)}
.chatbot__msg--user{background:var(--blue);color:var(--white);align-self:flex-end}
.chatbot__quick{display:flex;flex-wrap:wrap;gap:.4rem;padding:.5rem 1rem}
.chatbot__quick button{padding:.35rem .7rem;font-size:.78rem;background:var(--bg);border:1px solid var(--gray-light);cursor:pointer;transition:background var(--transition)}
.chatbot__quick button:hover{background:var(--blue);color:var(--white);border-color:var(--blue)}
.chatbot__input{display:flex;border-top:1px solid var(--gray-light)}
.chatbot__input input{flex:1;padding:.65rem .85rem;font-size:.88rem;border:none}
.chatbot__input button{padding:.65rem 1rem;background:var(--orange);color:var(--white);border:none;font-weight:700;cursor:pointer}
.chatbot__toggle{position:fixed;bottom:5.5rem;right:5rem;width:48px;height:48px;border-radius:50%;background:var(--blue);color:var(--white);border:none;box-shadow:0 4px 12px rgba(0,0,0,.25);z-index:950;font-size:1.3rem;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background var(--transition)}
.chatbot__toggle:hover{background:var(--blue-dark)}
.chatbot__restart{background:none;border:none;color:var(--gray);font-size:.75rem;text-decoration:underline;cursor:pointer;padding:.25rem .5rem;align-self:center}

/* ---------- Map link ---------- */
.map-link{display:inline-flex;align-items:center;gap:.4rem;color:var(--blue);font-weight:600;font-size:.9rem;margin-top:.5rem}
.map-link:hover{color:var(--orange)}

/* ---------- Breadcrumb ---------- */
.breadcrumb{padding:.75rem 0;font-size:.85rem;color:var(--gray)}
.breadcrumb a{color:var(--blue)}
.breadcrumb span{margin:0 .35rem;color:var(--gray-light)}

/* ---------- Responsive ---------- */
@media(max-width:768px){
  .nav__list{position:fixed;top:64px;left:0;right:0;background:var(--gray-dark);flex-direction:column;gap:0;max-height:0;overflow:hidden;transition:max-height .35s ease}
  .nav__list.open{max-height:400px}
  .nav__link{padding:1rem var(--pad);display:block;border-bottom:1px solid rgba(255,255,255,.08)}
  .nav__toggle{display:block}
  .hero .container{grid-template-columns:1fr;text-align:center}
  .hero__subtitle{margin:0 auto}
  .hero__actions{justify-content:center}
  .hero__img{border-left:none;border-top:4px solid var(--orange)}
  .about-split{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .about-split__stats{justify-content:center}
  .chatbot{width:calc(100% - 2.5rem);right:1.25rem;bottom:5rem}
  .chatbot__toggle{right:4.5rem;bottom:5rem}
  .floating{bottom:1rem;right:1rem}
}

@media(max-width:480px){
  .hero__title{font-size:1.8rem}
  .services-grid{grid-template-columns:1fr}
  .blog-grid{grid-template-columns:1fr}
  .gallery-grid{grid-template-columns:1fr 1fr}
}

/* ---------- Prefers reduced motion ---------- */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:0s!important;animation-duration:0s!important}
}

/* ---------- Print ---------- */
@media print{
  .header,.floating,.chatbot,.chatbot__toggle,.cookie-banner{display:none!important}
  body{background:#fff;color:#000}
}