/* ============================================================
   OpenPay.business — Design System & Styles
   ============================================================ */

/* ── Fonts ──────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,400&family=DM+Mono:wght@400;500&display=swap');

/* ── CSS Variables ──────────────────────────────────────── */
:root {
  --font-body:  'DM Sans', system-ui, sans-serif;
  --font-mono:  'DM Mono', monospace;

  --c-blue-50:  #eff6ff;
  --c-blue-100: #dbeafe;
  --c-blue-500: #3b82f6;
  --c-blue-600: #2563eb;
  --c-blue-700: #1d4ed8;

  --c-surface:   #ffffff;
  --c-bg:        #f8fafc;
  --c-card:      #ffffff;
  --c-border:    #e2e8f0;
  --c-muted:     #64748b;
  --c-text:      #1e293b;
  --c-text-2:    #475569;

  --c-green:     #10b981;
  --c-orange:    #f97316;
  --c-red:       #ef4444;
  --c-purple:    #8b5cf6;

  --shadow-sm:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:   0 4px 12px rgba(0,0,0,.1), 0 2px 4px rgba(0,0,0,.05);
  --shadow-lg:   0 20px 48px rgba(0,0,0,.12);
  --shadow-glow: 0 0 0 3px rgba(59,130,246,.2);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  18px;
  --radius-xl:  24px;

  --sidebar-w:  260px;
  --header-h:   64px;
  --transition: 0.22s cubic-bezier(.4,0,.2,1);
}

[data-theme="dark"] {
  --c-surface:  #1e293b;
  --c-bg:       #0f172a;
  --c-card:     #1e293b;
  --c-border:   #334155;
  --c-muted:    #94a3b8;
  --c-text:     #f1f5f9;
  --c-text-2:   #cbd5e1;
}

/* ── 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); background: var(--c-bg); color: var(--c-text); line-height: 1.6; -webkit-font-smoothing: antialiased; transition: background var(--transition), color var(--transition); }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; }
ul { list-style: none; }

/* ── Utility ────────────────────────────────────────────── */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }
.flex   { display: flex; }
.grid   { display: grid; }
.gap-1  { gap: 0.5rem; }
.gap-2  { gap: 1rem; }

/* ── Button System ──────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.65rem 1.4rem; border-radius: var(--radius-md);
  font-size: 0.9rem; font-weight: 600; letter-spacing: -0.01em;
  transition: all var(--transition); white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--c-blue-600), var(--c-blue-700));
  color: #fff; box-shadow: 0 2px 8px rgba(37,99,235,.35);
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(37,99,235,.45); }
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: transparent; color: var(--c-blue-600);
  border: 1.5px solid var(--c-blue-500);
}
.btn-outline:hover { background: var(--c-blue-50); }
[data-theme="dark"] .btn-outline:hover { background: rgba(59,130,246,.12); }

.btn-ghost { background: transparent; color: var(--c-text-2); }
.btn-ghost:hover { background: var(--c-border); color: var(--c-text); }

.btn-sm { padding: 0.4rem 0.9rem; font-size: 0.8rem; border-radius: var(--radius-sm); }
.btn-lg { padding: 0.85rem 2rem; font-size: 1rem; border-radius: var(--radius-lg); }

.btn-icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 34px; height: 34px; border-radius: var(--radius-sm);
  background: var(--c-border); color: var(--c-text-2);
  transition: all var(--transition);
}
.btn-icon:hover { background: var(--c-blue-500); color: #fff; }

/* ── Status Badges ──────────────────────────────────────── */
.status-paid    { color: var(--c-green); background: rgba(16,185,129,.1); padding: 2px 10px; border-radius: 99px; font-size: 0.75rem; font-weight: 600; display: inline-block; }
.status-pending { color: var(--c-orange); background: rgba(249,115,22,.1); padding: 2px 10px; border-radius: 99px; font-size: 0.75rem; font-weight: 600; display: inline-block; }
.status-active  { color: var(--c-green); background: rgba(16,185,129,.1); padding: 2px 10px; border-radius: 99px; font-size: 0.75rem; font-weight: 600; display: inline-block; }
.status-inactive{ color: var(--c-muted); background: var(--c-border); padding: 2px 10px; border-radius: 99px; font-size: 0.75rem; font-weight: 600; display: inline-block; }

/* ── Reveal Animation ───────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in-view { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ================================================================
   LANDING PAGE
================================================================ */

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--header-h); display: flex; align-items: center;
  padding: 0 5%; transition: all var(--transition);
}
.site-header.scrolled {
  background: rgba(248,250,252,.9);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}
[data-theme="dark"] .site-header.scrolled { background: rgba(15,23,42,.9); }

.header-inner { width: 100%; max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }

.logo { display: flex; align-items: center; gap: 0.6rem; font-weight: 700; font-size: 1.15rem; }
.logo-mark { width: 32px; height: 32px; background: linear-gradient(135deg, var(--c-blue-500), var(--c-blue-700)); border-radius: 8px; display: flex; align-items: center; justify-content: center; color: #fff; font-weight: 800; font-size: 0.8rem; }
.logo-text { color: var(--c-text); }
.logo-text span { color: var(--c-blue-600); }

.nav-main { display: flex; align-items: center; gap: 2rem; }
.nav-main a { font-size: 0.9rem; font-weight: 500; color: var(--c-text-2); transition: color var(--transition); }
.nav-main a:hover { color: var(--c-blue-600); }

.header-actions { display: flex; align-items: center; gap: 0.75rem; }

#themeToggle {
  width: 38px; height: 38px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  background: var(--c-card); border: 1.5px solid var(--c-border); color: var(--c-text-2);
  transition: all var(--transition);
}
#themeToggle svg { width: 17px; height: 17px; }
#themeToggle:hover { border-color: var(--c-blue-500); color: var(--c-blue-500); }

#hamburger { display: none; flex-direction: column; gap: 5px; padding: 6px; }
#hamburger span { width: 22px; height: 2px; background: var(--c-text); border-radius: 2px; display: block; transition: all var(--transition); }

.mobile-nav {
  display: none; position: fixed; top: var(--header-h); left: 0; right: 0;
  background: var(--c-card); border-bottom: 1px solid var(--c-border);
  padding: 1.5rem; flex-direction: column; gap: 1rem; z-index: 99;
  transform: translateY(-10px); opacity: 0; transition: all var(--transition);
  pointer-events: none;
}
.mobile-nav.open { transform: none; opacity: 1; pointer-events: all; }
.mobile-nav a { font-size: 1rem; font-weight: 500; color: var(--c-text-2); padding: 0.4rem 0; border-bottom: 1px solid var(--c-border); }
.mobile-nav a:last-child { border: none; }

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  padding: calc(var(--header-h) + 5rem) 5% 6rem;
  display: flex; align-items: center; justify-content: center;
  min-height: 100vh; position: relative; overflow: hidden;
  background: radial-gradient(ellipse 120% 60% at 50% 0%, rgba(59,130,246,.1) 0%, transparent 70%);
}
[data-theme="dark"] .hero {
  background: radial-gradient(ellipse 120% 60% at 50% 0%, rgba(59,130,246,.08) 0%, transparent 70%);
}

.hero-bg-grid {
  position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(var(--c-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-border) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 30%, transparent 80%);
  opacity: 0.5;
}

.hero-inner { max-width: 1200px; width: 100%; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  background: rgba(59,130,246,.1); border: 1px solid rgba(59,130,246,.25);
  color: var(--c-blue-600); font-size: 0.8rem; font-weight: 600;
  padding: 0.35rem 1rem; border-radius: 99px; margin-bottom: 1.5rem;
}
.hero-badge .dot { width: 6px; height: 6px; background: var(--c-green); border-radius: 50%; animation: pulse 2s infinite; }

@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.3)} }

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.8rem);
  font-weight: 700; line-height: 1.1; letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--c-blue-500), var(--c-blue-700) 50%, #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.hero-sub { font-size: 1.1rem; color: var(--c-text-2); max-width: 480px; margin-bottom: 2rem; }

.hero-cta { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }

.hero-ticker {
  margin-top: 2.5rem; display: flex; align-items: center; gap: 0.75rem;
  font-size: 0.85rem; color: var(--c-muted);
}
#liveTicker { font-weight: 500; color: var(--c-blue-600); transition: opacity 0.3s; }

/* Hero Visual */
.hero-visual { position: relative; }

.hero-card-stack { position: relative; height: 380px; }

.mock-card {
  position: absolute; border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition);
}

.mock-card-main {
  width: 100%; max-width: 360px;
  background: linear-gradient(135deg, #1d4ed8, #7c3aed);
  padding: 1.75rem; color: #fff; top: 0; right: 0;
  animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }

.card-chip { width: 38px; height: 28px; background: linear-gradient(135deg,#f59e0b,#d97706); border-radius: 5px; margin-bottom: 1.25rem; }
.card-number { font-family: var(--font-mono); font-size: 1rem; letter-spacing: 0.15em; margin-bottom: 1.25rem; opacity: .9; }
.card-footer { display: flex; justify-content: space-between; align-items: flex-end; }
.card-name { font-size: 0.75rem; opacity: .7; text-transform: uppercase; letter-spacing: 0.08em; }
.card-brand { font-size: 1.2rem; font-weight: 700; }

.mock-card-stats {
  width: 200px; background: var(--c-card);
  border: 1px solid var(--c-border);
  padding: 1rem; bottom: 40px; left: 0;
  animation: float 6s ease-in-out 1s infinite;
}
.stat-label { font-size: 0.72rem; color: var(--c-muted); font-weight: 500; margin-bottom: 0.2rem; }
.stat-value { font-size: 1.4rem; font-weight: 700; color: var(--c-text); }
.stat-change { font-size: 0.75rem; color: var(--c-green); font-weight: 600; margin-top: 0.2rem; }

.mock-card-notify {
  width: 220px; background: var(--c-card);
  border: 1px solid var(--c-border);
  padding: 0.85rem 1rem; top: 220px; right: -10px;
  animation: float 6s ease-in-out 2s infinite;
  display: flex; align-items: center; gap: 0.75rem;
}
.notify-icon { width: 36px; height: 36px; background: rgba(16,185,129,.15); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1rem; flex-shrink: 0; }
.notify-text { font-size: 0.8rem; }
.notify-text strong { display: block; color: var(--c-text); }
.notify-text span { color: var(--c-muted); font-size: 0.72rem; }

/* ── Trust Bar ───────────────────────────────────────────── */
.trust-bar {
  padding: 2.5rem 5%;
  border-top: 1px solid var(--c-border);
  border-bottom: 1px solid var(--c-border);
  background: var(--c-card);
}
.trust-bar-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 2rem; }
.trust-label { font-size: 0.8rem; color: var(--c-muted); font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; }
.trust-logos { display: flex; align-items: center; gap: 2.5rem; flex-wrap: wrap; }
.trust-logo { font-size: 0.9rem; font-weight: 700; color: var(--c-muted); opacity: 0.5; letter-spacing: 0.05em; }

/* ── Section Shared ──────────────────────────────────────── */
section { padding: 6rem 5%; }
.section-tag { display: inline-block; font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--c-blue-600); background: rgba(59,130,246,.1); padding: 0.3rem 0.9rem; border-radius: 99px; margin-bottom: 1rem; }
.section-title { font-size: clamp(1.8rem, 3.5vw, 2.5rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.2; margin-bottom: 1rem; }
.section-sub { font-size: 1.05rem; color: var(--c-text-2); max-width: 560px; }
.section-header { margin-bottom: 3.5rem; }
.section-header.centered { text-align: center; }
.section-header.centered .section-sub { margin: 0 auto; }

/* ── Stats ──────────────────────────────────────────────── */
.stats-section { background: var(--c-card); border-top: 1px solid var(--c-border); border-bottom: 1px solid var(--c-border); padding: 4rem 5%; }
.stats-grid { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; }
.stat-item { text-align: center; }
.stat-item .number { font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; color: var(--c-blue-600); letter-spacing: -0.03em; }
.stat-item .label { font-size: 0.9rem; color: var(--c-muted); margin-top: 0.25rem; }

/* ── Features ────────────────────────────────────────────── */
.features-section { background: var(--c-bg); }
.features-inner { max-width: 1200px; margin: 0 auto; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

.feature-card {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 2rem;
  transition: all var(--transition); position: relative; overflow: hidden;
}
.feature-card::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(59,130,246,.04), transparent);
  opacity: 0; transition: opacity var(--transition);
}
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: rgba(59,130,246,.3); }
.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 48px; height: 48px; border-radius: var(--radius-md);
  background: rgba(59,130,246,.1); color: var(--c-blue-600);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem; margin-bottom: 1.25rem;
}
.feature-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; }
.feature-desc  { font-size: 0.88rem; color: var(--c-text-2); line-height: 1.65; }

/* ── Pricing ─────────────────────────────────────────────── */
.pricing-section { background: var(--c-card); border-top: 1px solid var(--c-border); }
.pricing-inner   { max-width: 1100px; margin: 0 auto; }
.pricing-toggle  { display: flex; background: var(--c-bg); border: 1px solid var(--c-border); border-radius: 99px; padding: 3px; width: fit-content; margin: 0 auto 3rem; }
.pricing-toggle button {
  padding: 0.45rem 1.4rem; border-radius: 99px; font-size: 0.85rem; font-weight: 600;
  color: var(--c-muted); transition: all var(--transition);
}
.pricing-toggle button.active { background: var(--c-blue-600); color: #fff; }
.save-badge { font-size: 0.65rem; background: var(--c-green); color: #fff; padding: 1px 6px; border-radius: 99px; margin-left: 4px; }

.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }

.pricing-card {
  background: var(--c-card); border: 1.5px solid var(--c-border);
  border-radius: var(--radius-xl); padding: 2rem; transition: all var(--transition);
}
.pricing-card.featured {
  border-color: var(--c-blue-500);
  background: linear-gradient(180deg, rgba(59,130,246,.04), var(--c-card));
  box-shadow: 0 0 0 1px var(--c-blue-500), var(--shadow-md);
}
.pricing-card:hover:not(.featured) { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.plan-badge { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: #fff; background: var(--c-blue-600); padding: 2px 10px; border-radius: 99px; display: inline-block; margin-bottom: 1rem; }
.plan-name  { font-size: 1.3rem; font-weight: 700; margin-bottom: 0.5rem; }
.plan-desc  { font-size: 0.85rem; color: var(--c-muted); margin-bottom: 1.5rem; }
.plan-price { display: flex; align-items: baseline; gap: 0.2rem; margin-bottom: 0.4rem; }
.plan-price .currency { font-size: 1.2rem; font-weight: 700; color: var(--c-text-2); align-self: flex-start; padding-top: 0.4rem; }
.plan-price .amount   { font-size: 3rem; font-weight: 800; letter-spacing: -0.04em; color: var(--c-text); }
.plan-price .price-period { font-size: 0.8rem; color: var(--c-muted); }

.plan-features { list-style: none; margin: 1.5rem 0; display: flex; flex-direction: column; gap: 0.75rem; }
.plan-features li { font-size: 0.88rem; color: var(--c-text-2); display: flex; align-items: center; gap: 0.6rem; }
.plan-features li::before { content: '✓'; color: var(--c-green); font-weight: 700; flex-shrink: 0; }
.plan-features li.disabled { opacity: .4; }
.plan-features li.disabled::before { content: '—'; color: var(--c-muted); }

/* ── Security ────────────────────────────────────────────── */
.security-section { background: var(--c-bg); }
.security-inner   { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.security-badges  { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-top: 2rem; }
.security-badge   { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius-md); padding: 1rem; display: flex; align-items: center; gap: 0.75rem; }
.sec-icon         { font-size: 1.4rem; }
.sec-label        { font-size: 0.85rem; font-weight: 600; }
.sec-sub          { font-size: 0.75rem; color: var(--c-muted); }

.security-visual {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-xl); padding: 2rem; text-align: center;
}
.lock-circle {
  width: 120px; height: 120px; border-radius: 50%;
  background: linear-gradient(135deg, var(--c-blue-50), rgba(59,130,246,.15));
  border: 2px solid rgba(59,130,246,.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; margin: 0 auto 1.5rem;
  animation: glow 3s ease-in-out infinite;
}
@keyframes glow { 0%,100%{box-shadow:0 0 0 0 rgba(59,130,246,.3)} 50%{box-shadow:0 0 0 16px rgba(59,130,246,0)} }
.enc-label { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--c-muted); margin-top: 0.5rem; }
.enc-badge { display: inline-flex; align-items: center; gap: 0.4rem; background: rgba(16,185,129,.1); color: var(--c-green); font-size: 0.78rem; font-weight: 600; padding: 0.35rem 0.9rem; border-radius: 99px; margin-top: 0.75rem; }

/* ── CTA ─────────────────────────────────────────────────── */
.cta-section {
  padding: 6rem 5%; text-align: center;
  background: linear-gradient(135deg, var(--c-blue-600), var(--c-blue-700) 50%, #7c3aed);
  color: #fff; position: relative; overflow: hidden;
}
.cta-section::before {
  content: ''; position: absolute; top: -60%; left: -10%;
  width: 500px; height: 500px; border-radius: 50%;
  background: rgba(255,255,255,.06); filter: blur(60px);
}
.cta-inner { max-width: 640px; margin: 0 auto; position: relative; z-index: 1; }
.cta-title { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.03em; margin-bottom: 1rem; }
.cta-sub   { opacity: .8; font-size: 1.05rem; margin-bottom: 2rem; }
.cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }
.btn-white { background: #fff; color: var(--c-blue-700); font-weight: 700; }
.btn-white:hover { background: var(--c-blue-50); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline-white { border: 2px solid rgba(255,255,255,.5); color: #fff; }
.btn-outline-white:hover { background: rgba(255,255,255,.1); }

/* ── FAQ ─────────────────────────────────────────────────── */
.faq-section { background: var(--c-card); border-top: 1px solid var(--c-border); }
.faq-inner   { max-width: 720px; margin: 0 auto; }
.faq-list    { display: flex; flex-direction: column; gap: 0; border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden; }
.faq-item    { border-bottom: 1px solid var(--c-border); }
.faq-item:last-child { border-bottom: none; }
.faq-q {
  width: 100%; text-align: left; padding: 1.25rem 1.5rem; display: flex; align-items: center; justify-content: space-between;
  font-size: 0.95rem; font-weight: 600; color: var(--c-text); cursor: pointer;
  background: transparent; gap: 1rem;
}
.faq-arrow { color: var(--c-muted); transition: transform var(--transition); flex-shrink: 0; }
.faq-item.open .faq-arrow { transform: rotate(180deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height 0.35s ease, padding 0.35s ease; }
.faq-item.open .faq-a { max-height: 200px; }
.faq-a p { padding: 0 1.5rem 1.25rem; font-size: 0.88rem; color: var(--c-text-2); line-height: 1.7; }

/* ── Footer ─────────────────────────────────────────────── */
.site-footer {
  background: var(--c-text); color: rgba(255,255,255,.7);
  padding: 4rem 5% 2rem;
}
[data-theme="dark"] .site-footer { background: #020617; }
.footer-inner  { max-width: 1200px; margin: 0 auto; }
.footer-grid   { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-brand  { }
.footer-brand .logo-mark { margin-bottom: 1rem; }
.footer-brand p { font-size: 0.85rem; line-height: 1.7; max-width: 260px; margin-top: 0.75rem; }
.footer-col h4 { color: #fff; font-size: 0.85rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1rem; }
.footer-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a  { font-size: 0.85rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--c-blue-500); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 1.5rem; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-bottom p { font-size: 0.8rem; }
.footer-links  { display: flex; gap: 1.5rem; }
.footer-links a { font-size: 0.8rem; }

/* ================================================================
   MODAL SYSTEM
================================================================ */
.modal {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(0,0,0,.55); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 1.5rem; opacity: 0; pointer-events: none; transition: opacity var(--transition);
}
.modal.visible { opacity: 1; pointer-events: all; }

.modal-box {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-xl); padding: 2rem; width: 100%; max-width: 480px;
  max-height: 90vh; overflow-y: auto;
  transform: scale(0.95) translateY(10px); transition: transform var(--transition);
  box-shadow: var(--shadow-lg);
}
.modal.visible .modal-box { transform: none; }

.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.5rem; }
.modal-title  { font-size: 1.15rem; font-weight: 700; }
.modal-close  { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; background: var(--c-border); color: var(--c-text-2); font-size: 1rem; transition: all var(--transition); }
.modal-close:hover { background: var(--c-red); color: #fff; }

/* ── Form ────────────────────────────────────────────────── */
.form-group  { margin-bottom: 1.1rem; }
.form-label  { display: block; font-size: 0.82rem; font-weight: 600; color: var(--c-text-2); margin-bottom: 0.4rem; }
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 0.7rem 1rem;
  background: var(--c-bg); border: 1.5px solid var(--c-border);
  border-radius: var(--radius-md); font-size: 0.9rem; color: var(--c-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none; border-color: var(--c-blue-500); box-shadow: var(--shadow-glow);
}
.form-textarea { resize: vertical; min-height: 90px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.form-actions { display: flex; gap: 0.75rem; justify-content: flex-end; margin-top: 1.5rem; }

/* ── Toast ───────────────────────────────────────────────── */
#toastContainer {
  position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 9999;
  display: flex; flex-direction: column; gap: 0.5rem; pointer-events: none;
}
.toast {
  display: flex; align-items: center; gap: 0.65rem;
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-md); padding: 0.8rem 1.1rem;
  font-size: 0.88rem; font-weight: 500; color: var(--c-text);
  box-shadow: var(--shadow-md); min-width: 280px; max-width: 380px;
  transform: translateX(120%); transition: transform 0.35s cubic-bezier(.4,0,.2,1); pointer-events: all;
}
.toast.show { transform: none; }
.toast-icon { width: 22px; height: 22px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 0.75rem; font-weight: 800; flex-shrink: 0; }
.toast-success .toast-icon { background: rgba(16,185,129,.15); color: var(--c-green); }
.toast-error   .toast-icon { background: rgba(239,68,68,.15); color: var(--c-red); }
.toast-info    .toast-icon { background: rgba(59,130,246,.15); color: var(--c-blue-600); }
.toast-warning .toast-icon { background: rgba(249,115,22,.15); color: var(--c-orange); }

/* ================================================================
   DASHBOARD
================================================================ */
.dash-layout {
  display: flex; min-height: 100vh; background: var(--c-bg);
}

/* ── Sidebar ─────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w); background: var(--c-card);
  border-right: 1px solid var(--c-border);
  display: flex; flex-direction: column;
  position: fixed; top: 0; left: 0; bottom: 0; z-index: 50;
  transition: transform var(--transition);
}
.sidebar-header {
  height: var(--header-h); padding: 0 1.5rem;
  display: flex; align-items: center; border-bottom: 1px solid var(--c-border);
}
.sidebar-nav { flex: 1; padding: 1rem 0.75rem; overflow-y: auto; }
.sidebar-nav-group { margin-bottom: 1.5rem; }
.sidebar-nav-label { font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--c-muted); padding: 0 0.75rem; margin-bottom: 0.5rem; }
.nav-link {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 0.65rem 0.75rem; border-radius: var(--radius-md);
  font-size: 0.88rem; font-weight: 500; color: var(--c-text-2);
  transition: all var(--transition); cursor: pointer; width: 100%;
}
.nav-link:hover { background: var(--c-bg); color: var(--c-text); }
.nav-link.active { background: rgba(59,130,246,.1); color: var(--c-blue-600); font-weight: 600; }
.nav-link-icon { font-size: 1.1rem; width: 20px; text-align: center; }
.nav-badge { margin-left: auto; background: var(--c-blue-500); color: #fff; font-size: 0.65rem; font-weight: 700; padding: 1px 7px; border-radius: 99px; }

.sidebar-footer { padding: 1rem 0.75rem; border-top: 1px solid var(--c-border); }
.sidebar-user   { display: flex; align-items: center; gap: 0.75rem; padding: 0.65rem 0.75rem; border-radius: var(--radius-md); }
.user-avatar    { width: 34px; height: 34px; border-radius: 50%; background: linear-gradient(135deg,var(--c-blue-500),#7c3aed); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 0.8rem; font-weight: 700; flex-shrink: 0; }
.user-name      { font-size: 0.85rem; font-weight: 600; }
.user-plan      { font-size: 0.72rem; color: var(--c-muted); }

/* ── Dashboard Main ──────────────────────────────────────── */
.dash-main {
  margin-left: var(--sidebar-w); flex: 1; display: flex; flex-direction: column;
  min-height: 100vh;
}

.dash-topbar {
  height: var(--header-h); background: var(--c-card);
  border-bottom: 1px solid var(--c-border);
  padding: 0 2rem; display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 40;
}
.topbar-left { display: flex; align-items: center; gap: 1rem; }
#menuToggle { display: none; }
.topbar-title { font-size: 1rem; font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 0.75rem; }
.topbar-search {
  display: flex; align-items: center; gap: 0.5rem;
  background: var(--c-bg); border: 1.5px solid var(--c-border);
  border-radius: var(--radius-md); padding: 0.4rem 0.9rem;
}
.topbar-search input { border: none; background: none; font-size: 0.85rem; color: var(--c-text); outline: none; width: 180px; }
.topbar-search input::placeholder { color: var(--c-muted); }
.topbar-search span { color: var(--c-muted); font-size: 0.8rem; }
.notif-btn { position: relative; }
.notif-dot { position: absolute; top: 2px; right: 2px; width: 8px; height: 8px; background: var(--c-red); border-radius: 50%; border: 2px solid var(--c-card); }

/* ── Sections ────────────────────────────────────────────── */
.dash-content { padding: 2rem; flex: 1; }
.dash-section { display: none; }
.dash-section.active { display: block; animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from{opacity:0;transform:translateY(6px)} to{opacity:1;transform:none} }

.section-page-header { margin-bottom: 2rem; display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.section-page-header h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: -0.02em; }
.section-page-header p  { font-size: 0.88rem; color: var(--c-muted); margin-top: 0.2rem; }

/* ── Overview Cards ──────────────────────────────────────── */
.overview-cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; margin-bottom: 2rem; }
.ov-card {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 1.5rem;
  transition: all var(--transition);
}
.ov-card:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.ov-card-label { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--c-muted); margin-bottom: 0.6rem; }
.ov-card-value { font-size: 1.7rem; font-weight: 800; letter-spacing: -0.03em; color: var(--c-text); }
.ov-card-change { font-size: 0.78rem; color: var(--c-green); font-weight: 600; margin-top: 0.4rem; display: flex; align-items: center; gap: 0.3rem; }
.ov-card-change.down { color: var(--c-red); }
.ov-card-icon { width: 42px; height: 42px; border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; float: right; }
.ov-card-icon.blue   { background: rgba(59,130,246,.1); }
.ov-card-icon.green  { background: rgba(16,185,129,.1); }
.ov-card-icon.orange { background: rgba(249,115,22,.1); }
.ov-card-icon.purple { background: rgba(139,92,246,.1); }

/* ── Charts Grid ────────────────────────────────────────── */
.charts-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 1.25rem; margin-bottom: 2rem; }
.chart-card  {
  background: var(--c-card); border: 1px solid var(--c-border);
  border-radius: var(--radius-lg); padding: 1.5rem;
}
.chart-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.chart-card-title  { font-size: 0.95rem; font-weight: 700; }
.chart-legend      { display: flex; gap: 1rem; }
.legend-dot-sm     { width: 8px; height: 8px; border-radius: 50%; display: inline-block; margin-right: 5px; }
.legend-text       { font-size: 0.78rem; color: var(--c-muted); }

canvas { width: 100%; display: block; }

.donut-wrap   { display: flex; flex-direction: column; align-items: center; gap: 1rem; }
#donutLegend  { width: 100%; display: flex; flex-direction: column; gap: 0.5rem; }
.legend-item  { display: flex; align-items: center; gap: 0.5rem; font-size: 0.78rem; }
.legend-dot   { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.legend-label { flex: 1; color: var(--c-text-2); text-transform: capitalize; }
.legend-val   { font-weight: 600; color: var(--c-text); }

/* ── Recent Txns ────────────────────────────────────────── */
.recent-card   { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius-lg); }
.recent-header { padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--c-border); display: flex; align-items: center; justify-content: space-between; }
.recent-header h3 { font-size: 0.95rem; font-weight: 700; }

.txn-row  { display: flex; align-items: center; gap: 1rem; padding: 0.9rem 1.5rem; border-bottom: 1px solid var(--c-border); transition: background var(--transition); }
.txn-row:last-child { border-bottom: none; }
.txn-row:hover { background: var(--c-bg); }
.txn-icon  { font-size: 1.2rem; width: 38px; height: 38px; background: var(--c-bg); border-radius: var(--radius-md); display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.txn-info  { flex: 1; min-width: 0; }
.txn-label { font-size: 0.88rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
.txn-date  { font-size: 0.75rem; color: var(--c-muted); }
.txn-right { display: flex; flex-direction: column; align-items: flex-end; gap: 0.2rem; }
.txn-amount { font-size: 0.9rem; font-weight: 700; }
.txn-amount.income  { color: var(--c-green); }
.txn-amount.expense { color: var(--c-red); }

/* ── Transactions Section ───────────────────────────────── */
.txn-toolbar { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1.25rem; align-items: center; }
.txn-toolbar input, .txn-toolbar select { padding: 0.55rem 0.9rem; background: var(--c-card); border: 1.5px solid var(--c-border); border-radius: var(--radius-md); font-size: 0.85rem; color: var(--c-text); }
.txn-toolbar input { flex: 1; min-width: 180px; }
.txn-toolbar input:focus, .txn-toolbar select:focus { outline: none; border-color: var(--c-blue-500); }

.txn-table-wrap { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden; }

/* ── Links ──────────────────────────────────────────────── */
.links-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }
.link-card  { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 1.5rem; transition: all var(--transition); }
.link-card:hover { box-shadow: var(--shadow-md); }
.link-card.inactive { opacity: 0.6; }
.link-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 0.75rem; }
.link-name   { font-size: 0.95rem; font-weight: 700; }
.link-amount { font-size: 1.4rem; font-weight: 800; color: var(--c-blue-600); margin-bottom: 1rem; }
.link-url-row { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.link-url-input { flex: 1; font-size: 0.75rem; font-family: var(--font-mono); background: var(--c-bg); border: 1px solid var(--c-border); border-radius: var(--radius-sm); padding: 0.4rem 0.75rem; color: var(--c-text-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.link-meta { font-size: 0.75rem; color: var(--c-muted); display: flex; justify-content: space-between; margin-bottom: 1rem; }
.link-actions { display: flex; gap: 0.5rem; }

/* ── Invoices ────────────────────────────────────────────── */
.invoices-table { background: var(--c-card); border: 1px solid var(--c-border); border-radius: var(--radius-lg); overflow: hidden; }
.invoice-row { display: grid; grid-template-columns: 100px 1fr 120px 120px 90px 100px; align-items: center; gap: 0.75rem; padding: 1rem 1.5rem; border-bottom: 1px solid var(--c-border); font-size: 0.85rem; transition: background var(--transition); }
.invoice-row:last-child { border-bottom: none; }
.invoice-row:hover { background: var(--c-bg); }
.inv-header { background: var(--c-bg); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--c-muted); }
.inv-id    { font-family: var(--font-mono); font-size: 0.8rem; color: var(--c-muted); }
.inv-client { font-weight: 600; }
.inv-amount { font-weight: 700; color: var(--c-text); }

/* Invoice Preview */
.invoice-doc { font-size: 0.88rem; color: var(--c-text); }
.inv-doc-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 2rem; padding-bottom: 1.25rem; border-bottom: 2px solid var(--c-blue-500); }
.inv-brand     { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; }
.inv-title     { font-size: 1.8rem; font-weight: 800; color: var(--c-blue-600); letter-spacing: 0.08em; }
.inv-number    { font-family: var(--font-mono); color: var(--c-muted); font-size: 0.85rem; }
.inv-doc-body  { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }
.inv-doc-from, .inv-doc-to, .inv-doc-dates { line-height: 1.7; font-size: 0.85rem; color: var(--c-text-2); }
.inv-doc-items { border: 1px solid var(--c-border); border-radius: var(--radius-md); overflow: hidden; margin-bottom: 1.5rem; }
.inv-item-header { display: flex; justify-content: space-between; padding: 0.7rem 1rem; background: var(--c-bg); font-size: 0.75rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--c-muted); }
.inv-item-row   { display: flex; justify-content: space-between; padding: 0.85rem 1rem; border-top: 1px solid var(--c-border); }
.inv-item-total { display: flex; justify-content: space-between; padding: 0.85rem 1rem; background: var(--c-blue-50); border-top: 2px solid var(--c-blue-100); font-weight: 700; color: var(--c-blue-700); }
[data-theme="dark"] .inv-item-total { background: rgba(59,130,246,.1); color: var(--c-blue-500); border-color: rgba(59,130,246,.2); }
.inv-doc-footer { text-align: center; font-size: 0.8rem; color: var(--c-muted); padding-top: 1rem; border-top: 1px solid var(--c-border); }
.inv-secure-badge { display: inline-flex; align-items: center; gap: 0.3rem; margin-top: 0.5rem; color: var(--c-green); font-size: 0.75rem; }

/* ── Analytics Section ───────────────────────────────────── */
.analytics-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; margin-bottom: 1.25rem; }
.analytics-full { grid-column: 1 / -1; }

/* ── Empty State ────────────────────────────────────────── */
.empty-state { padding: 3rem; text-align: center; color: var(--c-muted); font-size: 0.9rem; }

/* ================================================================
   RESPONSIVE
================================================================ */
@media (max-width: 1024px) {
  .overview-cards { grid-template-columns: repeat(2, 1fr); }
  .charts-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .pricing-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .security-inner { grid-template-columns: 1fr; }
  .analytics-grid { grid-template-columns: 1fr; }
  .invoice-row { grid-template-columns: 90px 1fr 100px 90px; }
  .inv-due, .inv-actions { display: none; }
}

@media (max-width: 768px) {
  .hero-inner { grid-template-columns: 1fr; gap: 3rem; }
  .hero-visual { display: none; }
  .nav-main, .header-actions .btn { display: none; }
  #hamburger { display: flex; }
  .mobile-nav { display: flex; }

  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: none; box-shadow: var(--shadow-lg); }
  .dash-main { margin-left: 0; }
  #menuToggle { display: flex; align-items: center; justify-content: center; width: 38px; height: 38px; border-radius: var(--radius-md); background: var(--c-bg); border: 1.5px solid var(--c-border); }
  .topbar-search { display: none; }

  .overview-cards { grid-template-columns: 1fr 1fr; }
  .section-page-header { flex-direction: column; align-items: flex-start; }
  .links-grid { grid-template-columns: 1fr; }
  .invoice-row { grid-template-columns: 80px 1fr 100px; }
  .inv-due, .inv-actions, .inv-amount { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .security-badges { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .inv-doc-body { grid-template-columns: 1fr; }

  .cta-actions { flex-direction: column; align-items: center; }
  .hero-cta { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 480px) {
  .overview-cards { grid-template-columns: 1fr; }
  .dash-content { padding: 1.25rem; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}