/* ==============================================
   coupbiz – Design System v0.1
   Navy + Coral auf Sand White
   ============================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500&display=swap');

:root {
  /* Primary brand */
  --color-navy:        #0F2541;
  --color-sand:        #F8F4ED;
  --color-coral:       #E07856;

  /* Navy ramp */
  --color-navy-50:     #E8ECF2;
  --color-navy-100:    #C8D2DE;
  --color-navy-300:    #94A8BF;
  --color-navy-500:    #4A6B91;
  --color-navy-700:    #1A3A5C;
  --color-navy-900:    #0F2541;
  --color-navy-950:    #061429;

  /* Coral ramp */
  --color-coral-50:    #FBEEEA;
  --color-coral-100:   #F7D5CA;
  --color-coral-300:   #EFAD9A;
  --color-coral-500:   #E07856;
  --color-coral-700:   #C26333;
  --color-coral-800:   #A8501F;
  --color-coral-900:   #7A3A1F;

  /* Warm neutral (Sand-Familie) */
  --color-neutral-50:  #F8F4ED;
  --color-neutral-100: #F0EBE0;
  --color-neutral-200: #E5DFD2;
  --color-neutral-400: #B0A99E;
  --color-neutral-600: #6B655D;
  --color-neutral-800: #3A3530;
  --color-neutral-950: #1A1814;

  /* Semantisch */
  --color-success:     #2D6A4F;
  --color-warning:     #A8770F;
  --color-error:       #A23535;
  --color-info:        #4A78A3;
  --color-success-bg:  #E3F0E9;
  --color-warning-bg:  #F8EFD8;
  --color-error-bg:    #F5DCDC;
  --color-info-bg:     #E3EDF7;

  /* Role aliases */
  --color-bg:          var(--color-sand);
  --color-bg-card:     #FFFFFF;
  --color-text:        var(--color-neutral-800);
  --color-text-muted:  var(--color-neutral-600);
  --color-text-soft:   var(--color-neutral-400);
  --color-border:      var(--color-neutral-200);
  --color-border-strong: var(--color-neutral-400);

  /* Spacing */
  --space-1:  4px;
  --space-2:  8px;
  --space-3:  12px;
  --space-4:  16px;
  --space-6:  24px;
  --space-8:  32px;
  --space-12: 48px;
  --space-16: 64px;

  /* Radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  /* Compat-Aliase für bestehende Klassen */
  --primary:    var(--color-navy);
  --accent:     var(--color-coral);
  --accent-dark: var(--color-coral-700);
  --text:       var(--color-text);
  --text-light: var(--color-text-muted);
  --bg:         var(--color-bg);
  --card-bg:    var(--color-bg-card);
  --border:     var(--color-border);
  --success:    var(--color-success);
  --radius:     var(--radius-md);
}

/* ── Reset ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Inter", "Helvetica Neue", -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ── Nav ────────────────────────────────────── */
.nav {
  position: fixed; top: 0; width: 100%; z-index: 1000;
  background: var(--color-bg-card);
  border-bottom: 0.5px solid var(--color-border);
  box-shadow: 0 1px 2px rgba(15,37,65,.04);
}
.nav-inner {
  max-width: 1200px; margin: auto; padding: 0 var(--space-6);
  display: flex; align-items: center; height: 64px; justify-content: space-between;
}
.nav-logo {
  font-size: 1.4rem; font-weight: 500;
  color: var(--color-navy); letter-spacing: -0.02em;
}
.logo-accent { color: var(--color-coral); }
.nav-links { display: flex; gap: var(--space-6); list-style: none; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--color-text-muted); transition: color .15s; }
.nav-links a:hover { color: var(--color-navy); }
#nav-auth { display: flex; gap: var(--space-3); align-items: center; }

/* ── Buttons ────────────────────────────────── */
.btn-primary {
  background: var(--color-navy);
  color: var(--color-sand);
  padding: 10px 20px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500; border: none; cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: background .15s ease;
}
.btn-primary:hover { background: var(--color-navy-700); }
.btn-primary:active { background: var(--color-navy-950); }

.btn-accent {
  background: var(--color-coral);
  color: var(--color-navy);
  padding: 10px 20px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500; border: none; cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: background .15s ease;
}
.btn-accent:hover { background: var(--color-coral-700); }
.btn-accent:active { background: var(--color-coral-800); }

.btn-ghost, .btn-secondary {
  background: transparent;
  color: var(--color-navy);
  padding: 10px 20px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500;
  border: 0.5px solid var(--color-navy); cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: background .15s ease;
}
.btn-ghost:hover, .btn-secondary:hover { background: var(--color-navy-50); }

.btn-outline {
  background: transparent; color: var(--color-navy);
  padding: 10px 20px; border-radius: var(--radius-md);
  font-size: 14px; font-weight: 500;
  border: 0.5px solid var(--color-border-strong); cursor: pointer;
  text-decoration: none; display: inline-block;
  transition: background .15s ease;
}
.btn-outline:hover { background: var(--color-neutral-100); }

.btn-sm { padding: 6px 14px !important; font-size: 12px !important; }
.btn-link { font-size: 14px; font-weight: 500; color: var(--color-navy); }
.btn-link:hover { color: var(--color-coral); }

/* ── Layout ─────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 var(--space-6); }
.page-top { margin-top: 64px; }

/* ── Hero ───────────────────────────────────── */
.hero {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-700) 100%);
  color: var(--color-sand);
  padding: 100px 0 72px; text-align: center; margin-top: 64px;
}
.hero h1 {
  font-size: 32px; font-weight: 500; margin-bottom: var(--space-4);
  line-height: 1.1; letter-spacing: -0.02em; color: var(--color-sand);
}
.hero p { font-size: 16px; line-height: 1.6; opacity: .8; margin-bottom: var(--space-8); max-width: 520px; margin-left: auto; margin-right: auto; }
.hero-ctas { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }

/* ── Stats Bar ──────────────────────────────── */
.stats-bar { background: var(--color-bg-card); border-bottom: 0.5px solid var(--color-border); padding: var(--space-6) 0; }
.stats-inner { max-width: 1200px; margin: auto; padding: 0 var(--space-6); display: flex; justify-content: center; gap: var(--space-12); flex-wrap: wrap; }
.stat { text-align: center; }
.stat-number { font-size: 22px; font-weight: 500; color: var(--color-navy); letter-spacing: -0.01em; }
.stat-label { color: var(--color-text-muted); font-size: 12px; margin-top: 2px; }

/* ── Cards ──────────────────────────────────── */
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--color-border);
  padding: 18px;
  transition: box-shadow .15s, transform .15s;
}
.card:hover { box-shadow: 0 4px 12px rgba(15,37,65,.08); transform: translateY(-1px); }
.card-elevated {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--color-border);
  padding: 18px;
  box-shadow: 0 1px 2px rgba(15,37,65,.04);
}

/* ── Section ────────────────────────────────── */
.section { padding: var(--space-16) 0; }
.section-title {
  font-size: 22px; font-weight: 500; text-align: center;
  margin-bottom: var(--space-3); letter-spacing: -0.01em; color: var(--color-navy);
}
.section-subtitle { text-align: center; color: var(--color-text-muted); margin-bottom: var(--space-12); font-size: 14px; }

/* ── Deal Grid & Cards ──────────────────────── */
.deal-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: var(--space-6); }

.deal-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 0.5px solid var(--color-border);
  padding: 18px;
  display: flex; flex-direction: column; gap: var(--space-3);
  transition: box-shadow .15s, transform .15s;
  cursor: pointer;
}
.deal-card:hover { box-shadow: 0 4px 12px rgba(15,37,65,.08); transform: translateY(-1px); }
.deal-card__head { display: flex; justify-content: space-between; align-items: flex-start; }
.deal-title, .deal-card__title {
  font-size: 16px; font-weight: 500; color: var(--color-navy);
  line-height: 1.3; letter-spacing: -0.01em; margin: 0;
}
.deal-company, .deal-card__meta { font-size: 13px; color: var(--color-text-muted); line-height: 1.5; }
.deal-discount { font-size: 13px; font-weight: 500; color: var(--color-coral-900); background: var(--color-coral-100); border-radius: var(--radius-sm); padding: 6px 10px; }
.deal-card-header, .deal-card__head { margin-bottom: 0; }
.deal-card-footer, .deal-card__foot { display: flex; justify-content: space-between; align-items: center; margin-top: auto; padding-top: var(--space-3); border-top: 0.5px solid var(--color-border); }
.deal-card__stat { font-size: 11px; color: var(--color-text-soft); font-weight: 500; text-transform: uppercase; letter-spacing: .08em; }

/* ── Badges ─────────────────────────────────── */
.badge, .category-badge {
  display: inline-block; padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 12px; font-weight: 500; line-height: 1.4;
}
.badge-member   { background: var(--color-navy);        color: var(--color-sand); }
.badge-partner  { background: var(--color-coral);       color: var(--color-navy); }
.badge-premium  { background: var(--color-coral-100);   color: var(--color-coral-900); }
.badge-neutral  { background: var(--color-neutral-200); color: var(--color-neutral-800); }
.badge-verified { background: var(--color-success);     color: var(--color-sand); }
.badge-category { background: var(--color-neutral-200); color: var(--color-neutral-800); }
.badge-warning  { background: var(--color-warning-bg);  color: #6E4E08; }
.badge-info     { background: var(--color-info-bg);     color: #2F5478; }

.tier-badge { display: inline-block; padding: 3px 10px; border-radius: var(--radius-full); font-size: 12px; font-weight: 500; }
.tier-basic   { background: var(--color-neutral-200); color: var(--color-neutral-600); }
.tier-user     { background: var(--color-info-bg);     color: #2F5478; }
.tier-standard { background: var(--color-info-bg);     color: #2F5478; }
.tier-premium  { background: var(--color-coral-100);   color: var(--color-coral-900); }

/* ── Category Grid ──────────────────────────── */
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-4); }
.category-card {
  text-align: center; cursor: pointer; color: var(--color-text);
  background: var(--color-bg-card);
  border-radius: var(--radius-lg); border: 0.5px solid var(--color-border);
  padding: 20px 12px; transition: border-color .15s, box-shadow .15s;
}
.category-card:hover { border-color: var(--color-coral); box-shadow: 0 2px 8px rgba(224,120,86,.12); }
.category-icon { font-size: 2rem; margin-bottom: var(--space-2); }
.category-name { font-size: 13px; font-weight: 500; color: var(--color-navy); }

/* ── Pricing ─────────────────────────────────── */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.pricing-card { text-align: center; }
.pricing-card.featured { border-color: var(--color-coral); box-shadow: 0 4px 16px rgba(224,120,86,.12); }
.pricing-price { font-size: 32px; font-weight: 500; color: var(--color-navy); letter-spacing: -0.025em; margin: var(--space-3) 0 var(--space-2); }
.pricing-price span { font-size: 14px; color: var(--color-text-muted); font-weight: 400; }
.pricing-features { list-style: none; text-align: left; margin: var(--space-4) 0 var(--space-6); }
.pricing-features li { padding: 8px 0; border-bottom: 0.5px solid var(--color-border); font-size: 14px; color: var(--color-text); }
.pricing-features li::before { content: "✓  "; color: var(--color-success); font-weight: 500; }
.pricing-features li.no::before { content: "✗  "; color: var(--color-text-soft); }
.pricing-tax { font-size: 11px; color: var(--color-text-soft); margin-top: var(--space-2); text-align: center; }

/* ── Steps ──────────────────────────────────── */
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); }
.step-number {
  width: 48px; height: 48px; border-radius: var(--radius-full);
  background: var(--color-coral); color: var(--color-navy);
  font-size: 18px; font-weight: 500; display: flex; align-items: center;
  justify-content: center; margin: 0 auto var(--space-4);
}

/* ── Forms & Inputs ─────────────────────────── */
.form-group { margin-bottom: var(--space-4); }
.form-group label, label {
  display: block; margin-bottom: var(--space-2);
  font-size: 13px; font-weight: 500; color: var(--color-navy);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }

input, textarea, select, .form-control, .input {
  width: 100%; padding: 10px 14px;
  border: 0.5px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  font-size: 14px; font-family: inherit;
  color: var(--color-navy); background: var(--color-bg-card);
  height: 40px;
  transition: border-color .15s, box-shadow .15s;
}
textarea { height: auto; min-height: 100px; resize: vertical; }
input::placeholder, textarea::placeholder { color: var(--color-text-soft); }
input:hover, textarea:hover, select:hover { border-color: var(--color-neutral-600); }
input:focus, textarea:focus, select:focus {
  outline: none; border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(15,37,65,.08);
}
input:disabled, textarea:disabled, select:disabled {
  background: var(--color-neutral-100); color: var(--color-text-soft); cursor: not-allowed;
}

/* ── Alerts ─────────────────────────────────── */
.alert { padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); font-size: 14px; margin-bottom: var(--space-4); }
.alert-error   { background: var(--color-error-bg);   color: var(--color-error);   border: 0.5px solid #E8B9B9; }
.alert-success { background: var(--color-success-bg); color: var(--color-success); border: 0.5px solid #A8D5BC; }
.alert-info    { background: var(--color-info-bg);    color: var(--color-info);    border: 0.5px solid #B3CCE4; }

/* ── Tabs ───────────────────────────────────── */
.tabs { display: flex; border-bottom: 0.5px solid var(--color-border); margin-bottom: var(--space-8); flex-wrap: wrap; }
.tab-btn {
  padding: var(--space-3) var(--space-6); border: none; background: none;
  font-size: 14px; font-weight: 500; cursor: pointer; color: var(--color-text-muted);
  border-bottom: 2px solid transparent; margin-bottom: -0.5px; transition: all .15s;
}
.tab-btn.active { color: var(--color-coral); border-bottom-color: var(--color-coral); }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── Table ──────────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: var(--space-3) var(--space-4); background: var(--color-neutral-50); font-weight: 500; color: var(--color-text-muted); font-size: 11px; text-transform: uppercase; letter-spacing: .08em; border-bottom: 0.5px solid var(--color-border); }
td { padding: var(--space-3) var(--space-4); border-bottom: 0.5px solid var(--color-border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }

/* ── Auth Pages ─────────────────────────────── */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 80px 16px; background: var(--color-bg); }
.auth-card { background: var(--color-bg-card); border-radius: var(--radius-xl); padding: 40px; width: 100%; max-width: 500px; border: 0.5px solid var(--color-border); box-shadow: 0 4px 16px rgba(15,37,65,.06); }
.auth-logo { font-size: 1.4rem; font-weight: 500; color: var(--color-navy); text-align: center; margin-bottom: var(--space-2); letter-spacing: -0.02em; }
.auth-logo span { color: var(--color-coral); }
.auth-title { font-size: 22px; font-weight: 500; text-align: center; margin-bottom: var(--space-2); color: var(--color-navy); letter-spacing: -0.01em; }
.auth-sub { text-align: center; color: var(--color-text-muted); font-size: 14px; margin-bottom: var(--space-6); }

/* Register steps */
.step-indicator { display: flex; justify-content: center; gap: var(--space-2); margin-bottom: var(--space-6); }
.step-dot { width: 8px; height: 8px; border-radius: var(--radius-full); background: var(--color-border); transition: background .3s; }
.step-dot.active { background: var(--color-coral); }

.tier-select-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-3); margin-bottom: var(--space-4); }
.tier-option { border: 0.5px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4) var(--space-3); cursor: pointer; text-align: center; transition: all .15s; }
.tier-option:hover { border-color: var(--color-coral); }
.tier-option.selected { border-color: var(--color-coral); background: var(--color-coral-50); }
.tier-option-name { font-weight: 500; color: var(--color-navy); margin-bottom: var(--space-1); }
.tier-option-price { font-size: 12px; color: var(--color-text-muted); margin-bottom: var(--space-3); }
.tier-option-features { font-size: 12px; color: var(--color-text-muted); text-align: left; line-height: 1.8; list-style: none; }
.tier-option-features li::before { content: '✓ '; color: var(--color-success); }

/* ── Locked Overlay ──────────────────────────── */
.locked-overlay, .lock-icon { }
.locked-overlay { background: var(--color-neutral-50); border: 0.5px dashed var(--color-border-strong); border-radius: var(--radius-lg); padding: 40px; text-align: center; }
.lock-icon { font-size: 2.5rem; margin-bottom: var(--space-3); }

/* ── Coupon Code ─────────────────────────────── */
.code-block {
  background: var(--color-navy); color: var(--color-coral);
  padding: var(--space-4) var(--space-6); border-radius: var(--radius-md);
  font-family: "JetBrains Mono", "IBM Plex Mono", monospace;
  font-size: 20px; letter-spacing: 3px;
  display: flex; align-items: center; justify-content: space-between;
}

/* ── Modal ──────────────────────────────────── */
.modal { display: none; position: fixed; inset: 0; background: rgba(15,37,65,.4); z-index: 2000; align-items: center; justify-content: center; }
.modal.active { display: flex; }
.modal-box { background: var(--color-bg-card); border-radius: var(--radius-xl); padding: 36px; max-width: 480px; width: 90%; box-shadow: 0 20px 60px rgba(15,37,65,.2); }
.modal-box h2 { font-size: 18px; font-weight: 500; color: var(--color-navy); margin-bottom: var(--space-3); }
.modal-box p { color: var(--color-text-muted); margin-bottom: var(--space-4); font-size: 14px; }

/* ── Partner Grid ─────────────────────────────── */
.partner-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--space-6); }

/* ── Deal Detail ─────────────────────────────── */
.deal-detail-layout { display: grid; grid-template-columns: 1fr 300px; gap: var(--space-8); }
.sidebar-card { background: var(--color-bg-card); border-radius: var(--radius-lg); padding: var(--space-6); border: 0.5px solid var(--color-border); margin-bottom: var(--space-4); }

/* ── Spinner / Empty ─────────────────────────── */
.spinner { width: 32px; height: 32px; border: 2px solid var(--color-border); border-top-color: var(--color-coral); border-radius: 50%; animation: spin .7s linear infinite; margin: 48px auto; }
@keyframes spin { to { transform: rotate(360deg); } }
.empty-state { text-align: center; padding: 60px 20px; color: var(--color-text-muted); }
.empty-icon { font-size: 2.5rem; margin-bottom: var(--space-3); }
.empty-state h3 { font-size: 16px; font-weight: 500; color: var(--color-navy); margin-bottom: var(--space-2); }

/* ── Footer ──────────────────────────────────── */
.footer { background: var(--color-navy); color: var(--color-sand); padding: var(--space-16) 0 var(--space-8); margin-top: var(--space-16); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; margin-bottom: var(--space-12); }
.footer-brand { font-size: 1.3rem; font-weight: 500; margin-bottom: var(--space-3); letter-spacing: -0.02em; }
.footer-brand span { color: var(--color-coral); }
.footer-tagline { font-size: 13px; opacity: .6; line-height: 1.6; }
.footer-links { list-style: none; }
.footer-links a, .footer-col a { display: block; font-size: 13px; color: rgba(248,244,237,.65); margin-bottom: var(--space-2); transition: color .15s; }
.footer-links a:hover, .footer-col a:hover { color: var(--color-sand); }
.footer-col h4 { font-size: 11px; font-weight: 500; text-transform: uppercase; letter-spacing: .08em; margin-bottom: var(--space-3); color: rgba(248,244,237,.45); }
.footer-bottom { border-top: 0.5px solid rgba(248,244,237,.15); padding-top: var(--space-6); font-size: 12px; color: rgba(248,244,237,.35); display: flex; justify-content: space-between; flex-wrap: wrap; gap: var(--space-2); }

/* ── Responsive ──────────────────────────────── */
@media (max-width: 900px) {
  .category-grid { grid-template-columns: repeat(3, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
  .steps-grid { grid-template-columns: 1fr; }
  .deal-detail-layout { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .hero h1 { font-size: 24px; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .deal-grid { grid-template-columns: 1fr; }
  .tier-select-grid { grid-template-columns: 1fr; }
  .stats-inner { gap: var(--space-8); }
  .nav-links { display: none; }
  .auth-card { padding: 28px 20px; }
  .footer-bottom { justify-content: center; }
}