/* styles.css - RMA Portal mit info.php Design
   Studibedarf.de - meladis GmbH
   Basiert auf info.php v4.4 Layout */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=DM+Sans:wght@300;400;500;600;700;800&display=swap');

:root{
  --bg:#f5f7fb;
  --text:#0e2a47; --muted:#5f6e85;
  --card:#ffffff; --border:#e3e8f4;
  --accent:#3b82f6; --accent-hover:#2563eb;
  --primary:#3b82f6; --primary-hover:#2563eb;
  --primary-light:#60a5fa;
  --success:#10b981; --danger:#ef4444; --warning:#f59e0b; --info:#3b82f6;
  --space-1:.25rem; --space-2:.5rem; --space-3:.75rem; --space-4:1rem; --space-5:1.25rem; --space-6:1.5rem; --space-8:2rem; --space-10:2.5rem; --space-12:3rem;
  --radius-sm:12px; --radius:16px; --radius-lg:24px; --radius-full:999px;
  --shadow-sm:0 2px 12px rgba(0,0,0,.04);
  --shadow-md:0 8px 30px rgba(0,0,0,.06);
  --shadow-lg:0 16px 48px rgba(0,0,0,.08);
  --shadow:rgba(0,0,0,.06);
  --bg-light:#f9fafb;
  --bg-secondary:#f8f9fa;
  --text-secondary:#6c757d;
  --container:1180px;
  --ease:cubic-bezier(.4,0,.2,1);
  --mx:50%; --my:50%; --ray-rot:0rad;
  color-scheme:light;
}

*{box-sizing:border-box;margin:0;padding:0}
html{height:100%;scroll-behavior:smooth}
body{
  min-height:100vh; background:var(--bg); color:var(--text);
  font-family:Inter,"DM Sans",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji";
  font-size:15px; line-height:1.6; -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
  position:relative; overflow-x:hidden;
}

/* Animated background */
@keyframes bgShift {
  0%   { background-position: 0% 0%,  100% 50%, 20% 80%; }
  50%  { background-position: 100% 50%,  0% 30%, 80% 10%; }
  100% { background-position: 0% 0%,  100% 50%, 20% 80%; }
}
body::before{
  content:""; position:fixed; inset:0; z-index:0; pointer-events:none;
  background:
    radial-gradient(900px 900px at var(--mx) var(--my), rgba(117,157,230,.28), rgba(117,157,230,0) 58%),
    radial-gradient(680px 680px at 85% 22%, rgba(196,210,235,.33), rgba(196,210,235,0) 62%),
    radial-gradient(1000px 1000px at 10% 82%, rgba(210,224,248,.40), rgba(210,224,248,0) 68%);
  animation: bgShift 22s ease-in-out infinite alternate;
  background-repeat:no-repeat;
}

/* Waves */
.wave{ position:fixed; left:0; z-index:0; pointer-events:none; width:200%; height:16em; bottom:160px; background:rgba(223,232,248,.72);
  border-radius:1000% 1000% 0 0; transform:translate3d(0,0,0); animation:wave 20s ease-in-out infinite; opacity:.75;}
.wave:nth-of-type(2){ bottom:120px; background:rgba(207,221,247,.7); animation-duration:30s; animation-direction:reverse; opacity:.72;}
.wave:nth-of-type(3){ bottom:80px; background:rgba(191,212,244,.68); animation-duration:38s; opacity:.68;}
@keyframes wave{ 0%{transform:translateX(0)} 50%{transform:translateX(-25%)} 100%{transform:translateX(0)} }

/* App frame */
.app-frame{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:clamp(28px,5.2vw,42px);margin:var(--space-8) auto;width:min(100% - 40px,var(--container));position:relative;z-index:1}
.container{width:min(100% - 40px,var(--container));margin-inline:auto;position:relative;z-index:1}

/* Typography */
h1,h2,h3,h4,h5,h6{color:var(--text);font-weight:600;line-height:1.2;letter-spacing:-.02em}
h1{font-size:clamp(34px,5vw,52px);line-height:1.08;letter-spacing:-.03em;margin-bottom:var(--space-4)}
h2{font-size:clamp(22px,3.6vw,30px)} h3{font-size:clamp(17px,2.8vw,21px)}
p{margin-bottom:var(--space-4)}
a{color:var(--accent);text-decoration:none;transition:color .2s var(--ease)} a:hover,a:focus{color:var(--accent-hover);text-decoration:none}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);margin-bottom:var(--space-3)}
.eyebrow::before{content:"";width:28px;height:1.5px;background:var(--border);display:inline-block}
.lead{font-size:clamp(16px,2vw,18px);color:var(--muted);max-width:60ch;margin:0 0 var(--space-5)}
.subtitle{color:var(--muted);margin:.25rem 0 .6rem}
.kicker{color:var(--muted);margin:0 0 24px;font-size:16px}
.subheading{font-weight:700;letter-spacing:-.01em;margin:0 0 8px}

/* Top nav */
.top-nav{position:sticky;top:0;z-index:100;backdrop-filter:saturate(180%) blur(12px);-webkit-backdrop-filter:saturate(180%) blur(12px);background:rgba(244,247,251,.85);border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm)}
.top-nav-content{max-width:var(--container);margin:0 auto;padding:0 var(--space-6);display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:inline-flex;align-items:center;gap:.6rem;color:var(--text);text-decoration:none}
.brand .logo{width:26px;height:26px;object-fit:contain;display:inline-block;margin-right:.45rem}
.brand strong{font-size:21px;font-weight:600}
.nav-toggle{display:none;border:1px solid var(--border);background:var(--card);border-radius:10px;padding:10px 12px;color:var(--text);position:relative;cursor:pointer}
.nav-toggle .bar{display:block;width:22px;height:2px;background:var(--text);margin:4px 0;transition:transform .25s var(--ease),opacity .25s var(--ease)}
.nav-open .nav-toggle .bar:nth-child(1){transform:translateY(6px) rotate(45deg)}.nav-open .nav-toggle .bar:nth-child(2){opacity:0}.nav-open .nav-toggle .bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.site-nav{display:block}
.top-nav-links{display:flex;gap:var(--space-6);align-items:center;list-style:none;margin:0;padding:0}
.top-nav-links a{color:var(--text);font-weight:600;font-size:14px;letter-spacing:.01em;padding:10px 12px;border-radius:10px;transition:color .2s var(--ease),background .2s var(--ease)}
.top-nav-links a:hover{background:#006699;color:#fff}
.top-nav-links a.active{color:var(--accent)}
.nav-cta,.nav-cta:link,.nav-cta:visited{color:#fff !important}
.nav-cta{display:inline-flex;align-items:center;gap:.5rem;padding:.55rem .9rem;border-radius:999px;font-weight:700;font-size:14px;background:#243b6b;border:1px solid #243b6b;box-shadow:var(--shadow-sm);text-decoration:none;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:var(--shadow-md);background:#006699;color:#fff !important;border-color:#006699;text-decoration:none}

/* Language switch in nav */
.lang-switch{color:var(--text);font-size:14px;font-weight:600;padding:8px 12px;border-radius:8px;transition:background .2s var(--ease)}
.lang-switch:hover{background:var(--bg-light)}

/* Sections */
.section{padding:36px 0}
.hero{padding:clamp(26px,5.2vw,52px) 0}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:clamp(20px,3.6vw,40px);align-items:center}
.hero-media{background:linear-gradient(180deg,#ffffff,#eef4ff);border:1px solid var(--border);border-radius:22px;box-shadow:var(--shadow-md);aspect-ratio:4/3;overflow:hidden;position:relative;display:flex;align-items:center;justify-content:center;font-size:48px}

/* Grids */
.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(14px,2.4vw,24px)}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(14px,2.4vw,24px)}

/* Cards */
.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:var(--space-6);box-shadow:var(--shadow-sm);transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--accent)}
.card-title{font-weight:600;letter-spacing:-.01em;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid var(--border)}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:clamp(14px,2.4vw,24px);margin:12px 0 6px}
.stat-card{background:#eef3ff;border:1px solid #d7e3ff;border-radius:18px;padding:18px;box-shadow:var(--shadow-sm);text-align:center;transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--accent)}
.stat-value{font-size:clamp(26px,4.2vw,38px);font-weight:800;letter-spacing:-.02em;line-height:1.05}
.stat-label{margin-top:6px;color:var(--muted);font-weight:600;letter-spacing:.02em}

/* Buttons */
.btn,.cta{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);padding:14px 24px;font-size:15px;font-weight:600;border:none;border-radius:var(--radius-full);cursor:pointer;min-height:44px;position:relative;overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease);font-family:inherit}
.btn::before,.cta::before{content:"";position:absolute;inset:0;left:-100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s var(--ease)}
.btn:hover::before,.cta:hover::before{left:100%}
.btn-primary,.cta{background:var(--accent);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover,.cta:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-secondary,.cta.secondary{background:#eaf2ff;color:var(--text);border:1px solid var(--border);box-shadow:none}
.btn-secondary:hover,.cta.secondary:hover{background:#f3f7ff;border-color:var(--accent);color:var(--text)}
.btn-success{background:var(--success);color:#fff}
.btn-success:hover{background:#059669}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#dc2626}
.btn-block{width:100%;display:flex}
.cta-row{display:flex;gap:10px;flex-wrap:wrap}

/* Forms */
.form-group{margin-bottom:24px}
label{display:block;font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px}
input[type="text"],input[type="email"],input[type="number"],input[type="password"],select,textarea{
  width:100%; padding:12px 14px; font-size:15px; color:var(--text);
  background:var(--card); border:2px solid var(--border); border-radius:12px; transition:border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
  font-family:inherit;
}
input[type="text"]:focus,input[type="email"]:focus,input[type="number"]:focus,input[type="password"]:focus,textarea:focus,select:focus{
  outline:none; border-color:var(--accent); box-shadow:0 0 0 3px rgba(59,130,246,.12); background:#fff;
}
textarea{min-height:120px; resize:vertical}
.hint{font-size:13px;color:var(--muted);margin-top:6px}
input::placeholder,textarea::placeholder{color:var(--muted)}

/* Form grid */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.form-grid .span-2{grid-column:1 / -1}
.form-actions{display:flex;justify-content:flex-end;margin-top:6px}

/* Alerts */
.alert{padding:16px 20px;border-radius:12px;margin-bottom:20px;font-size:14px;display:flex;align-items:flex-start;gap:10px;border:1px solid}
.alert-error{background:#fee2e2;border-color:#ef4444;color:#991b1b}
.alert-success{background:#d1fae5;border-color:#10b981;color:#065f46}
.alert-warning{background:#fef3c7;border-color:#f59e0b;color:#92400e}
.alert-info{background:#dbeafe;border-color:#3b82f6;color:#1e40af}

/* Items */
.item-row{padding:20px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius);margin-bottom:16px;transition:all 0.2s ease}
.item-row:hover{box-shadow:var(--shadow-md);border-color:var(--accent);transform:translateY(-2px)}
.item-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px;padding-bottom:12px;border-bottom:1px solid var(--border)}
.item-name{font-weight:500;font-size:15px}
.item-number{font-size:13px;color:var(--muted);margin-top:4px}
.item-price{font-weight:600;font-size:20px;color:var(--accent)}
.item-details{display:grid;grid-template-columns:repeat(auto-fit, minmax(140px, 1fr));gap:12px}
.item-detail-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted);margin-bottom:4px}
.item-detail-value{font-size:14px;font-weight:500}
.return-qty-select{max-width:80px}

/* Upload */
.upload-area{border:2px dashed var(--border);border-radius:var(--radius);padding:40px 30px;text-align:center;background:linear-gradient(180deg, #ffffff, #eef4ff);transition:all 0.2s ease;cursor:pointer}
.upload-area:hover{border-color:var(--accent);background:linear-gradient(180deg, #f9fafb, #e0f2fe);box-shadow:var(--shadow-sm)}
.upload-icon{font-size:48px;margin-bottom:12px;opacity:0.6}
.upload-area p{color:var(--text);margin:8px 0}
input[type="file"]{display:none}
.file-list{margin-top:16px}
.file-item{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;background:var(--card);border:1px solid var(--border);border-radius:10px;margin-bottom:8px;font-size:14px;transition:all 0.2s}
.file-item:hover{box-shadow:var(--shadow-sm)}
.file-name{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;margin-right:12px;font-weight:500}
.file-size{color:var(--muted);margin-right:12px;font-size:13px}
.remove-file{background:none;border:none;color:#ef4444;cursor:pointer;padding:4px 8px;font-size:18px;font-weight:600;transition:transform 0.2s}
.remove-file:hover{transform:scale(1.1)}

/* Summary */
.summary{background:linear-gradient(135deg, #60a5fa, var(--accent));padding:28px;border-radius:calc(var(--radius) + 8px);margin:28px 0;box-shadow:var(--shadow-md);color:white}
.summary-row{display:flex;justify-content:space-between;align-items:center;padding:10px 0}
.summary-row:last-child{font-size:24px;font-weight:600;padding-top:16px;margin-top:12px;border-top:2px solid rgba(255, 255, 255, 0.3)}

/* Carriers */
.carriers{display:grid;grid-template-columns:repeat(auto-fit, minmax(140px, 1fr));gap:16px;margin-top:20px}
.carrier-link{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px 16px;background:var(--card);border:2px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--text);transition:all 0.2s ease;min-height:120px;font-weight:500;font-size:14px}
.carrier-link:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--accent)}
.carrier-name{margin-top:8px}

/* Tables */
.table{width:100%;border-collapse:separate;border-spacing:0}
.table th,.table td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border)}
.table th{font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:0.05em;color:var(--muted);background:#f9fafb}
.table tbody tr{transition:background 0.2s ease}
.table tbody tr:hover{background:#f9fafb}
.table tfoot td{font-weight:600;font-size:16px;color:var(--accent);border-top:2px solid var(--border)}

/* Badges */
.badge{display:inline-block;padding:6px 14px;border-radius:20px;font-size:12px;font-weight:700;text-transform:uppercase;letter-spacing:0.5px}
.badge-submitted{background:#FFF3CD;color:#856404;border:2px solid #FFE69C}
.badge-refunded{background:#D4EDDA;color:#155724;border:2px solid #C3E6CB}
.badge-rejected{background:#F8D7DA;color:#721C24;border:2px solid #F5C6CB}

/* Modal */
.modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);z-index:1000;align-items:center;justify-content:center}
.modal.active,.modal.open{display:flex}
.modal-content,.modal-card{background:white;padding:32px;border-radius:var(--radius-lg);max-width:700px;width:90%;max-height:85vh;overflow-y:auto;box-shadow:0 10px 40px rgba(0,0,0,0.3)}
.modal-actions{display:flex;gap:10px;margin-top:20px;justify-content:flex-end}

/* Filter tabs */
.filter-tabs{display:flex;gap:12px;margin-bottom:24px;flex-wrap:wrap}
.filter-tab{padding:12px 24px;background:white;border:2px solid var(--border);border-radius:var(--radius);text-decoration:none;color:var(--text);transition:all 0.2s;font-weight:600}
.filter-tab:hover{border-color:var(--primary);background:var(--bg-secondary)}
.filter-tab.active{background:var(--primary);color:white;border-color:var(--primary)}

/* RMA cards (admin) */
.rma-card{background:white;border:2px solid var(--border);border-radius:var(--radius-lg);padding:24px;margin-bottom:20px;box-shadow:0 2px 8px var(--shadow);transition:all 0.2s}
.rma-card:hover{box-shadow:0 4px 16px var(--shadow-lg)}
.rma-header{display:flex;justify-content:space-between;align-items:start;margin-bottom:20px;padding-bottom:16px;border-bottom:2px solid var(--bg-light)}
.rma-actions{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}

/* Band */
.band{margin:var(--space-8) 0;padding:clamp(16px, 3.4vw, 26px);background:var(--card);border:1px solid var(--border);border-radius:calc(var(--radius) + 8px);display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;box-shadow:var(--shadow-sm)}
.band strong{font-size:clamp(18px, 2vw, 22px)}
.band .cta-row{display:flex;gap:10px;flex-wrap:wrap}

/* Footer */
footer{margin-top:32px;border-top:1px solid rgba(255,255,255,.06);padding:20px 0;color:#e6edf5;background:#0f1a2c;box-shadow:0 -18px 40px rgba(0,0,0,.18);position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:14px}
.footer-grid a{color:#cfe0ff;text-decoration:none}
.footer-grid a:hover{color:#fff}
.footer-grid .socials{display:flex;gap:8px;margin-top:6px}
.footer-grid .socials .social{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:999px;border:1px solid rgba(255,255,255,.18);background:transparent;color:#e6edf5;font-size:13px}
.footer-grid .socials .social:hover{border-color:#fff;color:#fff}
.footer-address{font-size:13px;line-height:1.6;color:#cbd5e1;margin-top:6px}
.legal-row{display:flex;gap:.5rem;align-items:center;justify-content:center;padding:10px 0;color:#cbd5e1;font-size:12px;border-top:1px dashed rgba(255,255,255,.15);margin-top:8px}

/* Reveal animations */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.show{opacity:1;transform:none}
[data-stagger] .reveal-child{opacity:0;transform:translateY(14px)}
[data-stagger].show .reveal-child{animation:revealIn .85s var(--ease) forwards}
[data-stagger].show .reveal-child:nth-child(2){animation-delay:.08s}
[data-stagger].show .reveal-child:nth-child(3){animation-delay:.16s}
[data-stagger].show .reveal-child:nth-child(4){animation-delay:.24s}
@keyframes revealIn{to{opacity:1;transform:none}}

/* Utilities */
.text-center{text-align:center}
.text-secondary{color:var(--muted)}
.mt-2{margin-top:16px}
.mt-3{margin-top:24px}
.mb-2{margin-bottom:16px}
.mb-3{margin-bottom:24px}

/* Responsive */
@media (max-width:960px){
  .top-nav-content{flex-direction:column;height:auto;padding:var(--space-4) var(--space-6);gap:var(--space-4)}
  .nav-toggle{display:inline-block}
  .site-nav{display:none;width:100%}
  .site-nav.open{display:block}
  .top-nav-links{flex-direction:column;align-items:stretch;gap:.45rem}
  .top-nav-links>li{width:100%}
  .top-nav-links a{display:block;width:100%;padding:.8rem 1rem;border-radius:12px}
  .hero-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .grid,.grid-3{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .band .cta-row{flex-direction:column;align-items:center;width:100%}
  .form-grid{grid-template-columns:1fr}
  .item-details{grid-template-columns:1fr}
}
@media (max-width:640px){
  .container{width:min(100% - 32px,var(--container))}
  .card{padding:var(--space-5)}
  .footer-grid{grid-template-columns:1fr}
  .carriers{grid-template-columns:repeat(2, 1fr)}
}

/* Print styles */
@media print{
  .no-print{display:none !important}
  body{background:white;margin:0;padding:0}
  body::before,.wave{display:none}
  .top-nav,footer{display:none}
}