/* ============================================================
   SHARED.CSS — The Gurus Compliance Site
   Design system: Playfair Display + Work Sans
   Palette: Deep teal primary, warm gold accent, soft stone surfaces
   ============================================================ */

/* Art direction: Compliance advisory → authoritative, calm, trustworthy
   Palette: Deep teal (#1a5c54) primary, warm gold (#c49a2e) accent
   Typography: Playfair Display (display) + Work Sans (body)
   Density: Balanced — generous for marketing, structured for forms */

:root, [data-theme="light"] {
  /* Surfaces — warm stone */
  --color-bg:              #f5f4f0;
  --color-surface:         #faf9f7;
  --color-surface-2:       #ffffff;
  --color-surface-offset:  #efeee9;
  --color-divider:         #dedad4;
  --color-border:          #d5d1ca;

  /* Dark surfaces (hero, card backgrounds) */
  --color-surface-dark:    #0f2822;

  /* Text */
  --color-text:            #1e1a14;
  --color-text-muted:      #6b6560;
  --color-text-faint:      #b0ada6;
  --color-text-inverse:    #f5f4f0;

  /* Primary — deep teal */
  --color-primary:         #1a5c54;
  --color-primary-hover:   #134840;
  --color-primary-active:  #0d342e;
  --color-primary-light:   #e8f2f0;

  /* Gold accent */
  --color-gold:            #c49a2e;
  --color-gold-hover:      #a67e1e;
  --color-gold-active:     #8a6412;
  --color-gold-light:      #fdf5de;

  /* Semantic */
  --color-error:           #c0392b;
  --color-success:         #1a6640;

  /* Radius */
  --radius-sm:  0.375rem;
  --radius-md:  0.5rem;
  --radius-lg:  0.75rem;
  --radius-xl:  1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Type scale */
  --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
  --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
  --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
  --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
  --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);
  --text-2xl:  clamp(2rem,     1.2rem  + 2.5vw,  3.5rem);
  --text-3xl:  clamp(2.5rem,   1rem    + 4vw,    5rem);

  /* Spacing */
  --space-1: 0.25rem; --space-2: 0.5rem;  --space-3: 0.75rem;
  --space-4: 1rem;    --space-5: 1.25rem; --space-6: 1.5rem;
  --space-7: 1.75rem; --space-8: 2rem;    --space-10: 2.5rem;
  --space-12: 3rem;   --space-14: 3.5rem; --space-16: 4rem;
  --space-20: 5rem;   --space-24: 6rem;

  /* Content widths */
  --content-narrow:  640px;
  --content-default: 960px;
  --content-wide:    1240px;

  /* Shadows */
  --shadow-sm: 0 1px 3px oklch(0.15 0.02 160/0.07);
  --shadow-md: 0 4px 16px oklch(0.15 0.02 160/0.09);
  --shadow-lg: 0 12px 40px oklch(0.15 0.02 160/0.14);

  /* Fonts */
  --font-display: 'Playfair Display', 'Georgia', serif;
  --font-body:    'Work Sans', 'Helvetica Neue', sans-serif;

  /* Transition */
  --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
}

[data-theme="dark"] {
  --color-bg:              #0e1a18;
  --color-surface:         #131e1b;
  --color-surface-2:       #182420;
  --color-surface-offset:  #111917;
  --color-divider:         #1f2e2a;
  --color-border:          #2a3d38;
  --color-surface-dark:    #07110f;
  --color-text:            #d6d2cc;
  --color-text-muted:      #7a8480;
  --color-text-faint:      #4a5550;
  --color-text-inverse:    #0e1a18;
  --color-primary:         #3e9488;
  --color-primary-hover:   #2e7a70;
  --color-primary-active:  #206058;
  --color-primary-light:   #17302c;
  --color-gold:            #d4a84a;
  --color-gold-hover:      #c49230;
  --color-gold-active:     #a8781c;
  --color-gold-light:      #261e00;
  --color-error:           #e05545;
  --color-success:         #3a9960;
  --shadow-sm: 0 1px 3px oklch(0 0 0/0.25);
  --shadow-md: 0 4px 16px oklch(0 0 0/0.35);
  --shadow-lg: 0 12px 40px oklch(0 0 0/0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0e1a18; --color-surface: #131e1b; --color-surface-2: #182420;
    --color-surface-offset: #111917; --color-divider: #1f2e2a; --color-border: #2a3d38;
    --color-surface-dark: #07110f; --color-text: #d6d2cc; --color-text-muted: #7a8480;
    --color-text-faint: #4a5550; --color-text-inverse: #0e1a18;
    --color-primary: #3e9488; --color-primary-hover: #2e7a70; --color-primary-active: #206058;
    --color-primary-light: #17302c; --color-gold: #d4a84a; --color-gold-hover: #c49230;
    --color-gold-active: #a8781c; --color-gold-light: #261e00;
    --shadow-sm: 0 1px 3px oklch(0 0 0/0.25); --shadow-md: 0 4px 16px oklch(0 0 0/0.35);
    --shadow-lg: 0 12px 40px oklch(0 0 0/0.5);
  }
}

/* ---- BASE ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{-webkit-font-smoothing:antialiased;text-size-adjust:none;scroll-behavior:smooth;scroll-padding-top:72px}
body{min-height:100dvh;font-family:var(--font-body);font-size:var(--text-base);color:var(--color-text);background:var(--color-bg);line-height:1.6}
h1,h2,h3,h4{font-family:var(--font-display);text-wrap:balance;line-height:1.12}
p{text-wrap:pretty;max-width:72ch}
img,svg{display:block;max-width:100%;height:auto}
button{cursor:pointer;background:none;border:none;font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
ul[role="list"]{list-style:none}
input,select,textarea{font:inherit}
::selection{background:color-mix(in oklch, var(--color-primary) 20%, transparent);color:var(--color-text)}
:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px;border-radius:var(--radius-sm)}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}

/* ---- CONTAINERS ---- */
.container{max-width:var(--content-wide);margin-inline:auto;padding-inline:clamp(var(--space-5),4vw,var(--space-10))}
.container-default{max-width:var(--content-default);margin-inline:auto;padding-inline:clamp(var(--space-5),4vw,var(--space-10))}
.container-narrow{max-width:var(--content-narrow);margin-inline:auto;padding-inline:var(--space-6);text-align:center}

/* ---- NAVIGATION ---- */
.site-nav{position:sticky;top:0;z-index:50;background:color-mix(in oklch, var(--color-surface-dark) 95%, transparent);backdrop-filter:blur(12px);border-bottom:1px solid oklch(1 0 0/0.08)}
.nav-inner{max-width:var(--content-wide);margin-inline:auto;padding-inline:clamp(var(--space-4),3vw,var(--space-8));height:64px;display:flex;align-items:center;justify-content:space-between;gap:var(--space-6)}
.nav-logo{display:flex;align-items:center;gap:var(--space-3);flex-shrink:0}
.nav-logo img{height:40px;width:auto;filter:brightness(0) invert(1) opacity(0.85)}
.nav-logo-text{display:flex;flex-direction:column}
.nav-logo-text span:first-child{font-family:var(--font-display);font-size:var(--text-sm);font-weight:700;color:#fff;line-height:1.1}
.nav-logo-text span:last-child{font-size:var(--text-xs);color:oklch(1 0 0/0.45);line-height:1}
.nav-links{display:flex;align-items:center;gap:var(--space-1);list-style:none}
.nav-links a{font-size:var(--text-sm);font-weight:500;color:oklch(1 0 0/0.55);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);transition:color var(--transition),background var(--transition)}
.nav-links a:hover,.nav-links a.active{color:#fff;background:oklch(1 0 0/0.08)}
.nav-cta{display:inline-flex;align-items:center;background:var(--color-gold);color:#1a1200!important;font-size:var(--text-xs);font-weight:700;padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);transition:background var(--transition)!important;white-space:nowrap}
.nav-cta:hover{background:var(--color-gold-hover)!important}
.theme-toggle{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;color:oklch(1 0 0/0.5);transition:color var(--transition),background var(--transition)}
.theme-toggle:hover{color:#fff;background:oklch(1 0 0/0.1)}
.nav-mobile-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:36px;height:36px;padding:6px}
.nav-mobile-toggle span{display:block;width:100%;height:1.5px;background:oklch(1 0 0/0.6);border-radius:2px;transition:all var(--transition)}

/* ---- BUTTONS ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-2);font-size:var(--text-sm);font-weight:600;border-radius:var(--radius-full);padding:var(--space-3) var(--space-6);border:2px solid transparent;transition:background var(--transition),color var(--transition),border-color var(--transition),box-shadow var(--transition);white-space:nowrap;cursor:pointer;text-decoration:none;font-family:var(--font-body)}
.btn:focus-visible{outline:2px solid var(--color-primary);outline-offset:3px}
.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}
.btn-primary:hover{background:var(--color-primary-hover);border-color:var(--color-primary-hover);box-shadow:var(--shadow-sm)}
.btn-gold{background:var(--color-gold);color:#1a1200;border-color:var(--color-gold)}
.btn-gold:hover{background:var(--color-gold-hover);border-color:var(--color-gold-hover);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;color:var(--color-primary);border-color:var(--color-primary)}
.btn-outline:hover{background:var(--color-primary-light)}
.btn-lg{font-size:var(--text-base);padding:var(--space-4) var(--space-8)}

/* ---- SECTION LABELS / HEADINGS ---- */
.section-label{display:flex;align-items:center;gap:var(--space-2);font-size:var(--text-xs);font-weight:700;letter-spacing:0.12em;text-transform:uppercase;color:var(--color-primary);margin-bottom:var(--space-3)}
.section-label::before{content:'';width:24px;height:1.5px;background:var(--color-primary);border-radius:var(--radius-full);flex-shrink:0}
.section-heading{font-size:var(--text-2xl);font-weight:700;color:var(--color-text);letter-spacing:-0.025em;margin-bottom:var(--space-4)}
.section-subheading{font-size:var(--text-base);color:var(--color-text-muted);max-width:58ch;line-height:1.7}

/* ---- CTA BAND ---- */
.cta-band{background:var(--color-surface-dark);padding-block:clamp(var(--space-14),8vw,var(--space-20))}
.cta-band h2{font-size:var(--text-2xl);color:#fff;margin-bottom:var(--space-4)}
.cta-band p{font-size:var(--text-base);color:oklch(1 0 0/0.6);margin-bottom:var(--space-8);max-width:48ch;margin-inline:auto}

/* ---- FOOTER ---- */
.site-footer{background:var(--color-surface-dark);color:oklch(1 0 0/0.55);border-top:1px solid oklch(1 0 0/0.07)}
.footer-inner{max-width:var(--content-wide);margin-inline:auto;padding:var(--space-12) clamp(var(--space-5),4vw,var(--space-10)) var(--space-8)}
.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:var(--space-10);margin-bottom:var(--space-8)}
.footer-brand img{margin-bottom:var(--space-4)}
.footer-brand p{font-size:var(--text-xs);line-height:1.7;max-width:28ch}
.footer-col h4{font-size:var(--text-xs);font-weight:700;letter-spacing:0.1em;text-transform:uppercase;color:oklch(1 0 0/0.35);margin-bottom:var(--space-4)}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:var(--space-2)}
.footer-col a{font-size:var(--text-sm);color:oklch(1 0 0/0.45);transition:color var(--transition)}
.footer-col a:hover{color:#fff}
.footer-bottom{padding-top:var(--space-6);border-top:1px solid oklch(1 0 0/0.08);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:var(--space-3);font-size:var(--text-xs);color:oklch(1 0 0/0.3)}

/* ---- SCROLL REVEAL ---- */
.fade-in{opacity:0;transform:translateY(20px);transition:opacity 0.6s var(--ease-out),transform 0.6s var(--ease-out)}
.fade-in.visible{opacity:1;transform:none}

/* ---- MOBILE ---- */
@media(max-width:860px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--space-8)}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:640px){
  .nav-links{display:none}
  .nav-mobile-toggle{display:flex}
  .nav-cta{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* ---- SCROLL OBSERVER INIT ---- */