/* ============================================================
   CalculFit — Global CSS Design System
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=Poppins:wght@500;600;700;800&display=swap');

:root {
  --clr-primary:        #2DBD8F;
  --clr-primary-dark:   #1fa876;
  --clr-primary-light:  #e6f9f2;
  --clr-accent:         #FF6B6B;
  --clr-accent-dark:    #e05555;
  --clr-accent-light:   #fff0f0;
  --clr-dark:           #1C1C1E;
  --clr-mid:            #6b7280;
  --clr-bg:             #F7F9F8;
  --clr-surface:        #ffffff;
  --clr-surface-2:      #f0f5f2;
  --grad-primary:       linear-gradient(135deg, #2DBD8F 0%, #1a9e76 100%);
  --grad-accent:        linear-gradient(135deg, #FF6B6B 0%, #e05555 100%);
  --grad-hero:          linear-gradient(135deg, #0b1f17 0%, #1a4a36 50%, #0b1f17 100%);
  --font-body:          'Inter', sans-serif;
  --font-head:          'Poppins', sans-serif;
  --space-xs: .25rem; --space-sm: .5rem; --space-md: 1rem;
  --space-lg: 1.5rem; --space-xl: 2rem; --space-2xl: 3rem;
  --space-3xl: 4rem;  --space-4xl: 6rem;
  --radius-sm: 6px; --radius-md: 12px; --radius-lg: 20px;
  --radius-xl: 32px; --radius-full: 9999px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.06);
  --shadow-md:  0 4px 16px rgba(0,0,0,.08);
  --shadow-lg:  0 10px 40px rgba(0,0,0,.12);
  --shadow-green: 0 8px 32px rgba(45,189,143,.25);
  --shadow-accent: 0 8px 32px rgba(255,107,107,.25);
  --transition-fast: .15s ease;
  --transition-base: .25s ease;
  --container-max: 1200px;
  --container-pad: clamp(1rem, 5vw, 2rem);
  --header-h: 72px;
}

*, *::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);
  line-height: 1.65;
  color: var(--clr-dark);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--clr-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--clr-primary-dark); }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, select, textarea { font-family: inherit; }

h1,h2,h3,h4,h5,h6 { font-family: var(--font-head); font-weight: 700; line-height: 1.2; color: var(--clr-dark); }
h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); }
h4 { font-size: 1.25rem; }
p  { color: var(--clr-mid); line-height: 1.75; }

.container { max-width: var(--container-max); margin-inline: auto; padding-inline: var(--container-pad); }
.section { padding-block: var(--space-4xl); }
.section--sm { padding-block: var(--space-2xl); }
.text-center { text-align: center; }

.grid-2 { display: grid; grid-template-columns: repeat(2,1fr); gap: var(--space-xl); }
.grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--space-xl); }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--space-lg); }
@media (max-width: 900px) { .grid-4, .grid-3 { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 600px) { .grid-4,.grid-3,.grid-2 { grid-template-columns: 1fr; } }

.section-header { text-align: center; margin-bottom: var(--space-3xl); }
.section-header .eyebrow {
  display: inline-block; font-family: var(--font-head); font-size: .8rem;
  font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: var(--clr-primary); background: var(--clr-primary-light);
  padding: .3rem 1rem; border-radius: var(--radius-full); margin-bottom: var(--space-md);
}
.section-header h2 { margin-bottom: var(--space-md); }
.section-header p { max-width: 560px; margin-inline: auto; font-size: 1.1rem; }

.badge {
  display: inline-flex; align-items: center; gap: .3rem; font-size: .75rem;
  font-weight: 600; padding: .25rem .75rem; border-radius: var(--radius-full);
  background: var(--clr-primary-light); color: var(--clr-primary-dark);
}
.badge--accent { background: var(--clr-accent-light); color: var(--clr-accent-dark); }

#progress-bar {
  position: fixed; top: 0; left: 0; height: 3px; width: 0%;
  background: var(--grad-primary); z-index: 9999; transition: width .1s linear;
}

@keyframes fadeInUp { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }
@keyframes float    { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-8px); } }
@keyframes pulse-green { 0%,100% { box-shadow:0 0 0 0 rgba(45,189,143,.4); } 50% { box-shadow:0 0 0 12px rgba(45,189,143,0); } }

.animate-in { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.animate-in.visible { opacity: 1; transform: translateY(0); }

.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }