/* ==============================================
   FELCHRIS NATUROPATHIC CLINIC — BASE STYLES
   ============================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Space+Grotesk:wght@300;400;500;700&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  /* Core palette — monochrome with one green accent */
  --black:        #0A0A08;
  --charcoal:     #141412;
  --ink:          #1C1C1A;
  --smoke:        #2A2A27;
  --mist:         #F5F2EC;
  --pearl:        #FAFAF8;
  --white:        #FFFFFF;

  /* Single accent */
  --green:        #1D9E75;
  --green-dark:   #0F6E56;
  --green-pale:   #E1F5EE;
  --green-glow:   rgba(29, 158, 117, 0.15);

  /* Typography */
  --font-serif:   'Cormorant Garamond', Georgia, serif;
  --font-sans:    'Space Grotesk', system-ui, sans-serif;

  /* Spacing scale */
  --space-xs:     0.5rem;
  --space-sm:     1rem;
  --space-md:     2rem;
  --space-lg:     4rem;
  --space-xl:     8rem;

  /* Transitions */
  --ease-out:     cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out:  cubic-bezier(0.87, 0, 0.13, 1);
  --duration:     0.7s;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--black);
  color: var(--pearl);
  overflow-x: hidden;
  cursor: none; /* Custom cursor replaces */
  -webkit-font-smoothing: antialiased;
}

/* ---- Custom Cursor ---- */
.cursor {
  position: fixed;
  width: 10px; height: 10px;
  background: var(--green);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: width 0.2s var(--ease-out),
              height 0.2s var(--ease-out),
              background 0.2s;
  mix-blend-mode: screen;
}

.cursor-ring {
  position: fixed;
  width: 40px; height: 40px;
  border: 1px solid rgba(29, 158, 117, 0.4);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9998;
  transform: translate(-50%, -50%);
}

.cursor.is-hovering {
  width: 22px; height: 22px;
  background: var(--green);
}

/* ---- Vertical Side Navigation ---- */
.side-nav {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 2rem 0;
  z-index: 200;
  border-right: 1px solid rgba(255,255,255,0.05);
  background: rgba(10,10,8,0.8);
  backdrop-filter: blur(12px);
}

.side-nav-logo {
  font-family: var(--font-serif);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  writing-mode: vertical-rl;
  color: var(--green);
  text-decoration: none;
  transform: rotate(180deg);
}

.side-nav-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  list-style: none;
}

.side-nav-links a {
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.3);
  text-decoration: none;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  transition: color 0.3s;
}

.side-nav-links a:hover,
.side-nav-links a.active {
  color: var(--green);
}

.side-nav-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  border: 1px solid rgba(29,158,117,0.5);
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { border-color: rgba(29,158,117,0.5); }
  50% { border-color: var(--green); box-shadow: 0 0 8px var(--green); }
}

/* ---- Page wrapper (offset for side nav) ---- */
.page-wrapper {
  margin-left: 64px;
}

/* ---- Section base ---- */
.section {
  min-height: 100vh;
  padding: var(--space-xl) var(--space-lg);
  position: relative;
}

/* ---- Reveal animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s var(--ease-out),
              transform 0.9s var(--ease-out);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.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; }

/* ---- Clip-path reveal ---- */
.clip-reveal {
  clip-path: inset(100% 0 0 0);
  transition: clip-path 1s var(--ease-out);
}
.clip-reveal.visible {
  clip-path: inset(0% 0 0 0);
}

/* ---- Typography utilities ---- */
.display {
  font-family: var(--font-serif);
  font-weight: 300;
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.label {
  font-size: 0.68rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--green);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.label::before {
  content: '';
  display: block;
  width: 2rem;
  height: 1px;
  background: var(--green);
  flex-shrink: 0;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 2rem;
  border: 1px solid currentColor;
  cursor: none;
  transition: all 0.3s var(--ease-out);
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  transform: translateY(100%);
  transition: transform 0.35s var(--ease-out);
  z-index: 0;
}

.btn:hover::before {
  transform: translateY(0);
}

.btn span {
  position: relative;
  z-index: 1;
  transition: color 0.35s;
}

.btn-green {
  color: var(--green);
  border-color: var(--green);
}

.btn-green:hover span {
  color: var(--black);
}

.btn-white {
  color: var(--pearl);
  border-color: rgba(255,255,255,0.3);
}

.btn-white:hover span {
  color: var(--black);
}

/* ---- Horizontal rule ---- */
.rule {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin: var(--space-md) 0;
}

/* ---- Responsive: hide side nav on mobile ---- */
@media (max-width: 768px) {
  body { cursor: auto; }
  .cursor, .cursor-ring { display: none; }
  .side-nav { display: none; }
  .page-wrapper { margin-left: 0; }
  .section { padding: 5rem 1.5rem; }
}