/* ============================================
   SUSAVERDA — Main Stylesheet
   Trauerbegleitung & Epigenetik Coaching
   ============================================ */

/* ---------- CSS Custom Properties ---------- */
:root {
  /* Warm, calming palette inspired by olive trees & sunset */
  --color-primary: #6b7c5e;        /* Olive green */
  --color-primary-light: #94a882;
  --color-primary-dark: #4a5740;
  --color-secondary: #c4a882;      /* Warm sand */
  --color-secondary-light: #dcc7a9;
  --color-accent: #d4a574;         /* Warm amber */
  --color-bg: #faf8f5;             /* Warm white */
  --color-bg-alt: #f3efe9;         /* Slightly darker warm white */
  --color-bg-dark: #2c2c2c;
  --color-text: #3a3a3a;
  --color-text-light: #6b6b6b;
  --color-text-white: #faf8f5;
  --color-border: #e0dbd4;

  /* Typography */
  --font-heading: 'Cormorant Garamond', 'Georgia', serif;
  --font-body: 'Nunito Sans', 'Segoe UI', sans-serif;
  --font-accent: 'Cormorant Garamond', serif;

  /* Spacing */
  --section-padding: 120px;
  --container-width: 1200px;
  --gap: 2rem;

  /* Depth & 3D */
  --perspective: 1200px;
  --shadow-soft: 0 8px 32px rgba(0,0,0,0.08);
  --shadow-medium: 0 16px 48px rgba(0,0,0,0.12);
  --shadow-deep: 0 24px 64px rgba(0,0,0,0.16);
  --shadow-glow: 0 0 40px rgba(107,124,94,0.15);

  /* Transitions */
  --transition-smooth: 0.6s cubic-bezier(0.23, 1, 0.32, 1);
  --transition-spring: 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
}

/* Ensure all emoji render in color */
.pain-point__icon,
.card-3d__icon,
.factor-chip__icon,
.quote-block__mark,
[aria-hidden="true"] {
  font-family: "Apple Color Emoji", "Segoe UI Emoji", "Noto Color Emoji", "Twemoji Mozilla", sans-serif;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s ease;
}

/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.25;
  color: var(--color-primary-dark);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
}

h4 {
  font-size: clamp(1.2rem, 2vw, 1.4rem);
}

p {
  font-size: clamp(1rem, 1.1vw, 1.15rem);
  max-width: 68ch;
}

/* ---------- Layout ---------- */
.container {
  width: min(var(--container-width), 92%);
  margin-inline: auto;
}

.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.grid {
  display: grid;
  gap: var(--gap);
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
  grid-template-columns: repeat(3, 1fr);
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Navigation ---------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.2rem 0;
  transition: all var(--transition-smooth);
  background: rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(12px);
}

.navbar.scrolled {
  padding: 0.8rem 0;
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(20px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar__logo {
  font-family: var(--font-accent);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--color-text-white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition-smooth);
}

.navbar.scrolled .navbar__logo {
  color: var(--color-primary-dark);
}

.navbar__links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.navbar__link {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: rgba(255, 255, 255, 0.9);
  position: relative;
  padding-bottom: 4px;
  transition: color var(--transition-smooth);
}

.navbar.scrolled .navbar__link {
  color: var(--color-text);
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width 0.4s ease;
}

.navbar__link:hover::after {
  width: 100%;
}

.navbar__cta {
  background: var(--color-primary);
  color: var(--color-text-white);
  padding: 0.65rem 1.6rem;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  transition: all 0.4s ease;
  border: 2px solid var(--color-primary);
}

.navbar__cta:hover {
  background: transparent;
  color: var(--color-primary);
  transform: translateY(-2px);
}

/* Mobile menu toggle */
.navbar__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.navbar__toggle span {
  width: 26px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 2.2rem;
  border-radius: 50px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  border: none;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-text-white);
  box-shadow: 0 4px 20px rgba(107,124,94,0.3);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 8px 30px rgba(107,124,94,0.4);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary);
  color: var(--color-text-white);
  transform: translateY(-3px);
}

.btn__arrow {
  transition: transform 0.3s ease;
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* ---------- 3D Cards ---------- */
.card-3d {
  background: white;
  border-radius: 20px;
  padding: 2.5rem;
  position: relative;
  transition: all var(--transition-smooth);
  transform-style: preserve-3d;
  perspective: var(--perspective);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(255,255,255,0.8);
  height: 100%;
  min-height: 280px;
  box-sizing: border-box;
}

.card-3d:hover {
  transform: translateY(-8px) rotateX(2deg) rotateY(-2deg);
  box-shadow: var(--shadow-deep);
}

.card-3d::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255,255,255,0.3), transparent);
  pointer-events: none;
}

.card-3d__icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  font-size: 1.8rem;
  color: white;
  box-shadow: 0 4px 16px rgba(107,124,94,0.3);
  transform: translateZ(20px);
}

.card-3d__title {
  margin-bottom: 1rem;
  font-size: 1.3rem;
}

.card-3d__text {
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ---------- Section Headings ---------- */
.section-header {
  text-align: center;
  margin-bottom: 4rem;
  max-width: 700px;
  margin-inline: auto;
}

.section-header__tag {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  position: relative;
  padding: 0.4rem 1.2rem;
}

.section-header__tag::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(107,124,94,0.08);
  border-radius: 50px;
}

.section-header__title {
  margin-bottom: 1.2rem;
}

.section-header__desc {
  color: var(--color-text-light);
  font-size: 1.1rem;
  margin-inline: auto;
}

/* ---------- Decorative Elements ---------- */
.decor-line {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: 3px;
  margin: 1.5rem 0;
}

.decor-line--center {
  margin-inline: auto;
}

.decor-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  display: inline-block;
}

/* ---------- Canvas Background ---------- */
#canvas-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
  opacity: 0.4;
}

/* ---------- Scroll Progress ---------- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  z-index: 9999;
  transition: width 0.1s linear;
}

/* ---------- Back to Top ---------- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s ease;
  z-index: 900;
  box-shadow: 0 4px 16px rgba(107,124,94,0.3);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(107,124,94,0.4);
}