/* ════════════════════════════════════════
   METH.A — Modern Design System
   Colors kept original (#f06161 primary)
   Zero dependencies, pure CSS
   ════════════════════════════════════════ */

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:#333;background:#fff;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
button{cursor:pointer;border:none;background:none;font:inherit}
input,select,textarea{font:inherit;border:1px solid #ddd;border-radius:6px;padding:10px 14px;width:100%;outline:none;transition:border-color .25s}
input:focus,select:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}

/* ── Variables ── */
:root{
  --primary:#2563eb;--primary-dark:#1d4ed8;--primary-light:#eff6ff;
  --cta:#f06161;--cta-dark:#d94f4f;--cta-light:#fde8e8;
  --dark:#1a1a2e;--text:#333;--text-light:#777;
  --gray-100:#f5f5f5;--gray-200:#eee;--gray-300:#ddd;
  --success:#27ae60;--info:#2980b9;--danger:#e74c3c;
  --radius:8px;--radius-lg:16px;
  --shadow-sm:0 2px 8px rgba(0,0,0,.06);--shadow-md:0 6px 24px rgba(0,0,0,.08);--shadow-lg:0 12px 40px rgba(0,0,0,.1);
  --max-w:1140px;--nav-h:70px;
}

/* ── Container ── */
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 20px}

/* ── Section ── */
.section{padding:80px 0}
.section-title{font-size:clamp(1.5rem,3.5vw,2.2rem);font-weight:800;text-align:center;margin-bottom:8px;color:var(--dark)}
.section-sub{text-align:center;color:var(--text-light);font-size:1rem;max-width:560px;margin:0 auto 48px}

/* ── Reveal animation ── */
.reveal{transition:opacity .5s ease,transform .5s ease}
.reveal-hidden{opacity:0;transform:translateY(24px)}
.reveal.visible{opacity:1;transform:translateY(0)}

/* ════════════════════ PUBLIC NAVBAR ════════════════════ */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);transition:background .3s,box-shadow .3s}
.navbar.scrolled{background:rgba(255,255,255,.95);box-shadow:0 1px 0 rgba(0,0,0,.06)}
.navbar .container{display:flex;align-items:center;height:100%;justify-content:space-between}
.navbar-brand img{height:36px;width:auto}
.navbar-links{display:flex;align-items:center;gap:4px}
.navbar-links a{padding:8px 14px;border-radius:var(--radius);font-size:.85rem;font-weight:600;color:var(--text-light);transition:all .2s}
.navbar-links a:hover{color:var(--primary);background:var(--primary-light)}
.btn-nav{background:var(--cta)!important;color:#fff!important;padding:9px 18px!important;border-radius:var(--radius)!important}
.btn-nav:hover{background:var(--cta-dark)!important;box-shadow:0 4px 12px rgba(240,97,97,.3)!important;transform:translateY(-1px)}
.nav-toggle,.admin-nav-toggle{display:none;font-size:1.5rem;padding:4px;color:var(--dark)}

/* ════════════════════ HERO ════════════════════ */
.hero{min-height:80vh;display:flex;align-items:center;background:var(--primary-light);padding-top:var(--nav-h);padding-bottom:40px;position:relative;overflow:hidden}
.hero .container{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-content h1{font-size:clamp(2rem,5vw,3.8rem);font-weight:900;line-height:1.05;letter-spacing:-.02em;margin-bottom:16px;color:var(--dark)}
.hero-content h1 span{color:var(--primary)}
.hero-content p{font-size:1.05rem;color:var(--text-light);max-width:480px;line-height:1.6;margin-bottom:28px}
.hero-actions{display:flex;gap:10px;flex-wrap:wrap}
.hero-actions .btn-outline{background:transparent;border:2px solid var(--gray-300);color:var(--text);padding:12px 24px;border-radius:var(--radius);font-weight:700;transition:all .2s}
.hero-actions .btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.hero-visual{display:flex;justify-content:center;align-items:center}
.hero-visual img{max-width:100%;height:auto;max-height:400px;filter:drop-shadow(0 8px 30px rgba(0,0,0,.1))}

/* ════════════════════ BUTTONS ════════════════════ */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 24px;border-radius:var(--radius);font-weight:700;font-size:.9rem;transition:all .2s;gap:6px;white-space:nowrap}
.btn-primary{background:var(--cta);color:#fff}
.btn-primary:hover{background:var(--cta-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(240,97,97,.3)}
.btn-lg{padding:14px 32px;font-size:1rem}
.btn-whatsapp{background:#25d366;color:#fff}
.btn-whatsapp:hover{background:#1da851;transform:translateY(-2px);box-shadow:0 6px 20px rgba(37,211,102,.3)}

/* ════════════════════ SERVICES ════════════════════ */
.services-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.services-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.services-list li{background:var(--gray-100);padding:14px 18px;border-radius:var(--radius);font-weight:600;font-size:.88rem;color:var(--text);display:flex;align-items:center;gap:10px;transition:all .2s}
.services-list li::before{content:'🔧'}
.services-list li:hover{background:var(--primary);color:#fff;transform:translateX(4px)}
.services-list li:hover::before{content:'✅'}
.stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.stat-card{border:2px solid var(--gray-200);padding:24px 16px;border-radius:var(--radius-lg);text-align:center;transition:all .3s}
.stat-card:hover{border-color:var(--primary);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.stat-card h4{font-size:1.8rem;font-weight:900;color:var(--primary);margin-bottom:4px}
.stat-card p{font-size:.82rem;color:var(--text-light);font-weight:600}

/* ════════════════════ BRAND CAROUSEL ════════════════════ */
.carousel-wrap{overflow:hidden;padding:12px 0}
.carousel-track{display:flex;gap:32px;animation:scroll 30s linear infinite;width:max-content}
.carousel-track:hover{animation-play-state:paused}
.carousel-item{flex-shrink:0;width:120px;height:70px;display:flex;align-items:center;justify-content:center;padding:0 16px;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.carousel-item img{width:90px;height:38px;object-fit:contain;filter:grayscale(.5);opacity:.7;transition:all .3s}
.carousel-item:hover img{filter:grayscale(0);opacity:1;transform:scale(1.08)}
@keyframes scroll{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* ════════════════════ PRODUCTS ════════════════════ */
.filters{display:flex;gap:10px;margin-bottom:32px;flex-wrap:wrap}
.filters select{width:auto;min-width:180px;background:#fff;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23777' d='M6 8L1 3h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}
.product-card{background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);transition:all .3s}
.product-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:transparent}
.product-card .img-wrap{height:200px;overflow:hidden;background:var(--gray-100);display:flex;align-items:center;justify-content:center;padding:16px}
.product-card .img-wrap img{max-height:100%;width:auto;max-width:100%;object-fit:contain;transition:transform .4s}
.product-card:hover .img-wrap img{transform:scale(1.06)}
.product-card .info{padding:16px 20px 20px}
.product-card .info h3{font-size:1rem;font-weight:700;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-card .info p{font-size:.8rem;color:var(--text-light);margin-bottom:10px}
.product-card .price{font-size:1.3rem;font-weight:900;color:var(--primary);margin-bottom:4px}
.product-card .stock{font-size:.75rem;font-weight:600;color:var(--success);margin-bottom:12px}
.product-card .stock.out{color:var(--danger)}
.product-card .btn{width:100%;padding:10px;font-size:.82rem}

/* ════════════════════ ABOUT ════════════════════ */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.about-grid img{max-width:100%;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg)}
.about-text p{color:var(--text);margin-bottom:14px;font-size:1rem;line-height:1.7}
.about-text p:last-child{margin-bottom:0}

/* ════════════════════ MAP ════════════════════ */
.map-wrap{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.map-wrap iframe{width:100%;height:380px;border:0;display:block}

/* ════════════════════ CONTACT ════════════════════ */
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;align-items:start}
.contact-grid form{background:#fff;padding:32px;border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);border:1px solid var(--gray-200)}
.form-group{margin-bottom:16px}
.form-group label{display:block;font-weight:700;font-size:.8rem;margin-bottom:5px;color:var(--dark)}
.form-group textarea{resize:vertical;min-height:110px;font-family:inherit;padding:10px 14px;border:1px solid #ddd;border-radius:6px;width:100%;outline:none;transition:border-color .25s}
.form-group textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.contact-info{padding:32px;border-radius:var(--radius-lg);background:var(--dark);color:rgba(255,255,255,.9)}
.contact-info h6{font-size:1.1rem;font-weight:800;margin-bottom:16px;color:#fff}
.contact-info p{display:flex;align-items:center;gap:10px;margin-bottom:10px;font-size:.9rem}
.contact-info p .icon{font-size:1rem}

/* ════════════════════ FOOTER ════════════════════ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.6);padding:56px 0 0;font-size:.85rem}
.site-footer .container{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:28px}
.site-footer h5{color:#fff;font-size:.85rem;font-weight:700;margin-bottom:14px;text-transform:uppercase;letter-spacing:.05em}
.site-footer p{margin-bottom:6px;line-height:1.5}
.site-footer a{color:rgba(255,255,255,.6);transition:color .2s}
.site-footer a:hover{color:var(--primary)}
.footer-bottom{grid-column:1/-1;border-top:1px solid rgba(255,255,255,.08);padding-top:20px;margin-top:4px;text-align:center;font-size:.75rem;color:rgba(255,255,255,.35)}

/* ════════════════════ FLOATING BUTTONS ════════════════════ */
.float-btn{position:fixed;right:20px;z-index:900;width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(0,0,0,.15);transition:all .3s}
.float-btn:hover{transform:scale(1.1)}
.float-whatsapp{bottom:90px;background:#25d366}
.float-instagram{bottom:28px;background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888)}

/* ════════════════════ MODAL ════════════════════ */
.modal{display:none;position:fixed;inset:0;z-index:2000;align-items:center;justify-content:center;background:rgba(0,0,0,.5);padding:20px}
.modal.open{display:flex}
.modal-content{background:#fff;border-radius:var(--radius-lg);max-width:600px;width:100%;max-height:90vh;padding:32px;position:relative;overflow-y:auto;animation:modalIn .25s ease-out}
@keyframes modalIn{from{opacity:0;transform:scale(.95) translateY(16px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-close{position:fixed;top:14px;right:18px;font-size:1.5rem;color:#aaa;transition:color .2s;cursor:pointer;background:none;border:none;z-index:1}
.modal-close:hover{color:#333}
.modal-content img{width:100%;max-height:50vh;object-fit:contain;border-radius:var(--radius);margin-bottom:16px}
.modal-content .desc{font-size:.9rem;color:var(--text-light);line-height:1.6}
@media(max-width:480px){.modal-content{padding:20px;max-height:85vh}.modal-content img{max-height:40vh}.modal-close{top:10px;right:14px;font-size:1.3rem}}

/* ════════════════════ UTILITY ════════════════════ */
.empty-state{text-align:center;padding:48px 20px;color:#aaa}
.empty-state .icon{font-size:2.5rem;margin-bottom:10px}
.empty-state p{font-size:.95rem;margin-bottom:12px}
.alert{padding:10px 14px;border-radius:var(--radius);font-size:.85rem;margin-top:10px;background:rgba(231,76,60,.08);color:var(--danger);font-weight:600;text-align:center}

/* ════════════════════ ADMIN ════════════════════ */
.admin-nav{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--nav-h);background:rgba(255,255,255,.95);box-shadow:0 1px 0 rgba(0,0,0,.06)}
.admin-nav .container{display:flex;align-items:center;height:100%;justify-content:space-between}
.admin-nav-links{display:flex;align-items:center;gap:2px}
.admin-nav-links a{padding:7px 12px;border-radius:var(--radius);font-size:.8rem;font-weight:600;color:var(--text-light);transition:all .2s}
.admin-nav-links a:hover,.admin-nav-links a.active{background:var(--primary-light);color:var(--primary)}
.admin-nav-links .btn-logout{color:var(--danger)!important}
.admin-main{padding-top:calc(var(--nav-h) + 28px);min-height:100vh;background:#f9f9f9}
.card{background:#fff;border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);margin-bottom:20px}
.card h2{font-size:1.2rem;font-weight:800;margin-bottom:10px;display:flex;align-items:center;gap:8px;color:var(--dark)}
.stats-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:14px;margin-bottom:20px}
.stat-card-admin{background:#fff;border-radius:var(--radius-lg);padding:20px;text-align:center;box-shadow:var(--shadow-sm);border:1px solid var(--gray-200);transition:all .3s}
.stat-card-admin:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.stat-card-admin .num{font-size:2rem;font-weight:900}
.stat-card-admin .label{font-size:.8rem;color:var(--text-light);font-weight:600;margin-top:4px}
.table-wrap{overflow-x:auto}
.admin-table{width:100%;border-collapse:collapse;font-size:.85rem}
.admin-table th{text-align:left;padding:10px 14px;font-weight:700;color:var(--text-light);border-bottom:2px solid var(--gray-200);white-space:nowrap}
.admin-table td{padding:10px 14px;border-bottom:1px solid var(--gray-100);vertical-align:middle}
.admin-table tr:hover td{background:#fafafa}
.admin-table .actions{display:flex;gap:6px}
.thumb{width:48px;height:48px;object-fit:cover;border-radius:var(--radius);background:var(--gray-100)}
.badge{display:inline-block;padding:2px 8px;border-radius:99px;font-size:.72rem;font-weight:700}
.badge-success{background:rgba(39,174,96,.1);color:var(--success)}
.badge-danger{background:rgba(231,76,60,.1);color:var(--danger)}
.badge-info{background:rgba(41,128,185,.1);color:var(--info)}
.form-admin{max-width:680px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-row-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:14px}
.form-input{width:100%;padding:10px 14px;border:1px solid #ddd;border-radius:6px;outline:none;transition:border-color .25s;font-size:.9rem}
.form-input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(37,99,235,.12)}
.help{display:block;font-size:.75rem;color:#aaa;margin-top:3px}
.btn-sm{padding:7px 14px;font-size:.78rem;border-radius:5px}
.btn-secondary{background:var(--gray-200);color:var(--text)}
.btn-secondary:hover{filter:brightness(.95)}
.btn-success{background:var(--success);color:#fff}
.btn-success:hover{background:#219a52}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#c0392b}
.img-preview{width:100px;border-radius:var(--radius);border:1px solid var(--gray-200)}

/* ════════════════════ ADMIN MOBILE ════════════════════ */
@media(max-width:768px){
  .admin-nav-toggle{display:block}
  .admin-nav-links{display:none;position:absolute;top:var(--nav-h);left:0;right:0;background:rgba(255,255,255,.98);flex-direction:column;padding:12px 16px;gap:6px;box-shadow:0 8px 24px rgba(0,0,0,.08);border-top:1px solid var(--gray-200)}
  .admin-nav-links.open{display:flex}
  .admin-nav-links a{padding:12px 14px;width:100%;border-radius:var(--radius)}
  .admin-table .actions{flex-direction:column;gap:4px}
  .admin-table .actions .btn{width:100%;text-align:center;white-space:nowrap;font-size:.75rem}
}
@media(max-width:480px){
  .admin-table{font-size:.78rem}
  .admin-table th,.admin-table td{padding:8px 8px}
  .admin-table .actions .btn{padding:6px 10px;font-size:.7rem}
}

/* ════════════════════ LOGIN ════════════════════ */
.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--primary-light);padding:20px}
.login-card{background:#fff;border-radius:var(--radius-lg);padding:40px 36px;width:100%;max-width:400px;box-shadow:var(--shadow-lg);text-align:center}
.login-card img{height:42px;margin:0 auto 20px}
.login-card h2{font-size:1.2rem;font-weight:800;margin-bottom:24px}
.login-card .btn{width:100%;padding:12px}
.login-card .form-group{text-align:left}
.back-link{display:inline-block;margin-top:14px;font-size:.82rem;color:#aaa;transition:color .2s}
.back-link:hover{color:var(--primary)}

/* ── Hero title switch ── */
.hero-title-mob{display:none}

/* ════════════════════ RESPONSIVE ════════════════════ */
@media(max-width:900px){
  .hero .container{grid-template-columns:1fr;gap:32px;text-align:center}
  .hero-content p{margin-left:auto;margin-right:auto}
  .hero-actions{justify-content:center}
  .hero-visual{display:none}
  .services-grid{grid-template-columns:1fr;gap:28px}
  .about-grid{grid-template-columns:1fr;gap:28px}
  .contact-grid{grid-template-columns:1fr;gap:20px}
  .site-footer .container{grid-template-columns:1fr 1fr}
  .form-row,.form-row-3{grid-template-columns:1fr}
}
@media(max-width:768px){
  .hero-title-desk{display:none}
  .hero-title-mob{display:inline}
  .nav-toggle{display:block}
  .navbar-links{display:none;position:absolute;top:var(--nav-h);left:0;right:0;background:rgba(255,255,255,.98);flex-direction:column;padding:12px;gap:0;box-shadow:0 8px 24px rgba(0,0,0,.08);border-top:1px solid var(--gray-200)}
  .navbar-links.open{display:flex}
  .navbar-links a{padding:12px 14px;width:100%;border-radius:var(--radius)}
  .section{padding:50px 0}
  .products-grid{grid-template-columns:repeat(auto-fill,minmax(220px,1fr))}
  .services-list{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr 1fr}
  .site-footer .container{grid-template-columns:1fr;gap:24px}
  .login-card{padding:28px 20px}
}
@media(max-width:480px){
  .container{padding:0 14px}
  .section-title{font-size:1.3rem}
  .products-grid{grid-template-columns:1fr}
  .filters select{min-width:100%}
  .hero-content h1{font-size:1.8rem}
  .stats-grid{grid-template-columns:1fr 1fr}
  .card{padding:18px}
}