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

:root {
  --blue:       #4f6ef7;
  --blue-dark:  #3a57e8;
  --blue-bg:    #f0f3ff;
  --text:       #111827;
  --text-2:     #6b7280;
  --text-3:     #9ca3af;
  --border:     #e5e7eb;
  --white:      #ffffff;
  --bg:         #f9fafb;
  --green:      #16a34a;
  --radius:     8px;
  --radius-lg:  12px;
  --shadow:     0 1px 4px rgba(0,0,0,0.07), 0 4px 16px rgba(0,0,0,0.05);
  --font:       'Inter', sans-serif;
  --max-w:      1080px;
  --nav-h:      60px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); font-size: 15px; line-height: 1.6; color: var(--text); background: var(--white); -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
code { font-family: monospace; font-size: 0.88em; background: var(--blue-bg); color: var(--blue); padding: 2px 6px; border-radius: 4px; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font); font-size: 0.88rem; font-weight: 500;
  padding: 9px 18px; border-radius: var(--radius);
  border: 1.5px solid transparent; cursor: pointer;
  transition: all 0.15s ease; white-space: nowrap; line-height: 1;
}
.btn--primary { background: var(--blue); color: #fff; border-color: var(--blue); }
.btn--primary:hover { background: var(--blue-dark); border-color: var(--blue-dark); }
.btn--outline { background: #fff; color: var(--text); border-color: var(--border); }
.btn--outline:hover { border-color: var(--blue); color: var(--blue); }
.btn--ghost { background: transparent; color: var(--text-2); border-color: transparent; }
.btn--ghost:hover { color: var(--text); background: var(--bg); }
.btn--sm  { font-size: 0.82rem; padding: 7px 14px; }
.btn--lg  { font-size: 0.94rem; padding: 12px 24px; border-radius: var(--radius-lg); }
.btn--full { width: 100%; justify-content: center; }

/* ── Nav ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.nav__inner {
  max-width: var(--max-w); margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav__logo { font-size: 1.15rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.nav__logo span { color: var(--blue); }
.nav__links { display: flex; align-items: center; gap: 2px; list-style: none; }
.nav__links a:not(.btn) { font-size: 0.88rem; color: var(--text-2); padding: 6px 12px; border-radius: var(--radius); }
.nav__links a:not(.btn):hover { color: var(--text); background: var(--bg); }
.nav__burger { display: none; flex-direction: column; gap: 4px; background: none; border: none; cursor: pointer; padding: 4px; }
.nav__burger span { display: block; width: 20px; height: 1.5px; background: var(--text); border-radius: 2px; }

/* ── Hero ── */
.hero {
  padding: calc(var(--nav-h) + 80px) 0 80px;
  text-align: center;
  background: var(--white);
}
.hero__label {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.75rem; font-weight: 500; color: var(--blue);
  background: var(--blue-bg); padding: 4px 12px; border-radius: 100px;
  margin-bottom: 24px; letter-spacing: 0.02em;
}
.hero__label-dot { width: 6px; height: 6px; border-radius: 50%; background: #22c55e; }
.hero__title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700; line-height: 1.15;
  letter-spacing: -0.03em; color: var(--text);
  margin-bottom: 18px;
}
.hero__title em { font-style: normal; color: var(--blue); }
.hero__sub {
  font-size: 1rem; color: var(--text-2); max-width: 460px;
  margin: 0 auto 36px; font-weight: 400; line-height: 1.7;
}

.shortener { max-width: 560px; margin: 0 auto; }
.shortener__box {
  display: flex; align-items: center; gap: 0;
  border: 1.5px solid var(--border); border-radius: var(--radius-lg);
  background: var(--white); overflow: hidden;
  box-shadow: var(--shadow);
  transition: border-color 0.15s;
}
.shortener__box:focus-within { border-color: var(--blue); }
.shortener__input {
  flex: 1; border: none; outline: none;
  font-family: var(--font); font-size: 0.9rem; color: var(--text);
  padding: 13px 16px; background: transparent;
}
.shortener__input::placeholder { color: var(--text-3); }
.shortener__submit {
  flex-shrink: 0; margin: 5px;
  background: var(--blue); color: #fff;
  border: none; border-radius: 8px;
  font-family: var(--font); font-size: 0.88rem; font-weight: 500;
  padding: 9px 20px; cursor: pointer;
  transition: background 0.15s;
}
.shortener__submit:hover { background: var(--blue-dark); }
.shortener__note { font-size: 0.75rem; color: var(--text-3); margin-top: 10px; }

.hero__stats {
  display: flex; align-items: center; justify-content: center;
  gap: 48px; margin-top: 56px;
  padding-top: 40px; border-top: 1px solid var(--border);
}
.hero__stat strong { display: block; font-size: 1.6rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.hero__stat span { font-size: 0.78rem; color: var(--text-3); }
.hero__stat-div { width: 1px; height: 28px; background: var(--border); }

/* ── Logos strip ── */
.logos { padding: 40px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg); }
.logos__label { text-align: center; font-size: 0.75rem; color: var(--text-3); font-weight: 500; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 20px; }
.logos__row { display: flex; align-items: center; justify-content: center; gap: 48px; flex-wrap: wrap; }
.logos__item { font-size: 0.88rem; font-weight: 600; color: var(--text-3); letter-spacing: -0.01em; }

/* ── Section ── */
.section { padding: 88px 0; }
.section--gray { background: var(--bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section__eyebrow { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--blue); margin-bottom: 10px; }
.section__title { font-size: clamp(1.7rem, 3.2vw, 2.2rem); font-weight: 700; color: var(--text); letter-spacing: -0.025em; line-height: 1.25; margin-bottom: 14px; }
.section__sub { font-size: 0.95rem; color: var(--text-2); max-width: 480px; line-height: 1.7; }
.section__header--center { text-align: center; margin-bottom: 52px; }
.section__header--center .section__sub { margin: 0 auto; }

/* ── Features ── */
.features__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.feat {
  background: var(--white); padding: 28px 24px;
  transition: background 0.15s;
}
.feat:hover { background: var(--bg); }
.feat__icon { width: 36px; height: 36px; background: var(--blue-bg); border-radius: var(--radius); display: flex; align-items: center; justify-content: center; color: var(--blue); margin-bottom: 14px; }
.feat h3 { font-size: 0.92rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.feat p { font-size: 0.84rem; color: var(--text-2); line-height: 1.6; }

/* ── How it works ── */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step__num { font-size: 0.72rem; font-weight: 700; color: var(--blue); background: var(--blue-bg); width: 26px; height: 26px; border-radius: 50%; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.step h3 { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.step p { font-size: 0.84rem; color: var(--text-2); line-height: 1.6; }

/* ── Pricing ── */
.pricing__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; align-items: start; }
.plan {
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 24px; background: var(--white); position: relative;
}
.plan--featured { border-color: var(--blue); }
.plan__badge {
  position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  background: var(--blue); color: #fff; font-size: 0.68rem; font-weight: 600;
  padding: 3px 10px; border-radius: 100px; white-space: nowrap; letter-spacing: 0.04em;
}
.plan__tier { font-size: 0.68rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-3); margin-bottom: 10px; }
.plan__price { font-size: 2.2rem; font-weight: 700; color: var(--text); letter-spacing: -0.03em; line-height: 1; margin-bottom: 4px; }
.plan__price span { font-size: 0.85rem; font-weight: 400; color: var(--text-3); }
.plan__desc { font-size: 0.82rem; color: var(--text-2); margin-bottom: 18px; }
.plan__divider { height: 1px; background: var(--border); margin-bottom: 16px; }
.plan__features { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.plan__features li { display: flex; align-items: center; gap: 8px; font-size: 0.82rem; color: var(--text-2); }
.plan__features .ok { color: var(--green); font-size: 0.8rem; }
.plan__features .no { color: var(--text-3); font-size: 0.8rem; }

/* ── CTA ── */
.cta { background: var(--blue); padding: 72px 0; text-align: center; }
.cta h2 { font-size: clamp(1.6rem, 3vw, 2rem); font-weight: 700; color: #fff; letter-spacing: -0.025em; margin-bottom: 12px; }
.cta p { color: rgba(255,255,255,0.7); font-size: 0.95rem; margin-bottom: 28px; }
.cta .btn--cta { background: #fff; color: var(--blue); border-color: #fff; font-weight: 600; }
.cta .btn--cta:hover { background: var(--blue-bg); border-color: var(--blue-bg); }

/* ── Footer ── */
.footer { border-top: 1px solid var(--border); padding: 48px 0 24px; }
.footer__grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; margin-bottom: 36px; }
.footer__logo { font-size: 1rem; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.footer__logo span { color: var(--blue); }
.footer__tagline { font-size: 0.83rem; color: var(--text-3); margin-top: 8px; line-height: 1.6; }
.footer__col h4 { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-3); margin-bottom: 12px; }
.footer__col a { display: block; font-size: 0.85rem; color: var(--text-2); margin-bottom: 8px; }
.footer__col a:hover { color: var(--text); }
.footer__bottom { padding-top: 20px; border-top: 1px solid var(--border); font-size: 0.78rem; color: var(--text-3); }

/* ── Flash ── */
.flash-container { position: fixed; top: calc(var(--nav-h) + 12px); right: 16px; z-index: 200; display: flex; flex-direction: column; gap: 8px; max-width: 340px; }
.flash { display: flex; align-items: flex-start; justify-content: space-between; gap: 10px; padding: 11px 13px; border-radius: var(--radius); font-size: 0.83rem; background: var(--white); border: 1px solid var(--border); box-shadow: var(--shadow); animation: fIn 0.15s ease; }
@keyframes fIn { from { opacity:0; transform: translateX(12px); } to { opacity:1; transform: none; } }
.flash--success { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }
.flash--error   { background: #fef2f2; border-color: #fecaca; color: #991b1b; }
.flash--info    { background: var(--blue-bg); border-color: #c7d7fd; color: #1e40af; }
.flash__close { background: none; border: none; color: currentColor; opacity: 0.4; cursor: pointer; font-size: 1rem; line-height: 1; padding: 0; }

/* ── Auth ── */
.page-auth main { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg); padding: calc(var(--nav-h) + 32px) 16px 48px; }
.auth-wrap { width: 100%; max-width: 400px; }
.auth-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow); }
.auth-logo { display: block; font-size: 1.1rem; font-weight: 700; color: var(--text); margin-bottom: 24px; letter-spacing: -0.02em; }
.auth-logo span { color: var(--blue); }
.auth-title { font-size: 1.3rem; font-weight: 700; color: var(--text); margin-bottom: 6px; letter-spacing: -0.02em; }
.auth-sub { font-size: 0.85rem; color: var(--text-2); margin-bottom: 22px; line-height: 1.6; }
.auth-form { display: flex; flex-direction: column; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 0.8rem; font-weight: 500; color: var(--text); }
.field__label-row { display: flex; align-items: center; justify-content: space-between; }
.field__forgot { font-size: 0.78rem; color: var(--blue); }
.field__forgot:hover { text-decoration: underline; }
.field input[type="text"], .field input[type="email"], .field input[type="password"] { width: 100%; background: var(--white); border: 1.5px solid var(--border); border-radius: var(--radius); color: var(--text); font-family: var(--font); font-size: 0.88rem; padding: 9px 12px; outline: none; transition: border-color 0.15s, box-shadow 0.15s; }
.field input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(79,110,247,0.1); }
.field input::placeholder { color: var(--text-3); }
.field__pass-wrap { position: relative; }
.field__pass-wrap input { padding-right: 40px; }
.field__eye { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); background: none; border: none; color: var(--text-3); cursor: pointer; padding: 3px; display: flex; align-items: center; }
.field__eye:hover { color: var(--text-2); }
.pass-strength { font-size: 0.73rem; font-weight: 500; min-height: 14px; margin-top: 3px; }
.checkbox-label { display: flex; align-items: flex-start; gap: 8px; cursor: pointer; font-size: 0.8rem; color: var(--text-2); line-height: 1.5; }
.checkbox-label input[type="checkbox"] { width: 14px; height: 14px; flex-shrink: 0; margin-top: 2px; accent-color: var(--blue); }
.auth-terms { font-size: 0.74rem; color: var(--text-3); line-height: 1.55; }
.auth-terms a { color: var(--text-2); text-decoration: underline; }
.auth-switch { text-align: center; margin-top: 16px; font-size: 0.83rem; color: var(--text-2); }
.auth-switch a { color: var(--blue); font-weight: 500; }
.auth-switch a:hover { text-decoration: underline; }
.form-errors { background: #fef2f2; border: 1px solid #fecaca; border-radius: var(--radius); padding: 10px 13px; }
.form-errors p { font-size: 0.82rem; color: #991b1b; margin: 0; line-height: 1.5; }
.form-errors p+p { margin-top: 3px; }

/* ── Responsive ── */
@media (max-width: 860px) {
  .features__grid { grid-template-columns: repeat(2, 1fr); }
  .pricing__grid { grid-template-columns: 1fr; max-width: 380px; margin: 0 auto; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; gap: 24px; }
}
@media (max-width: 600px) {
  .hero__stats { flex-direction: column; gap: 16px; }
  .hero__stat-div { display: none; }
  .features__grid { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 24px; }
  .nav__links { display: none; }
  .nav__burger { display: flex; }
}