/* ============================================
   DAILYFORM WEBSITE — style.css
   Implements the Dailyform Design System
   ============================================ */

*{ margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--df-font-sans);
  background: var(--df-bg);
  color: var(--df-fg);
  line-height: var(--df-lh-body);
  overflow-x: hidden;
}

/* ---- BUTTONS ---- */
.df-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--df-radius-pill);
  font-weight: var(--df-w-semibold);
  font-size: var(--df-size-ui);
  text-decoration: none;
  transition: all var(--df-dur-fast) var(--df-ease);
  cursor: pointer;
  border: none;
  font-family: inherit;
}
.df-btn-primary { background: var(--df-green); color: #fff; }
.df-btn-primary:hover {
  background: var(--df-green-light);
  transform: translateY(-2px);
  box-shadow: var(--df-shadow-btn);
}
.df-btn-primary:active { transform: scale(0.98); transition-duration: 0.1s; }
.df-btn-ghost {
  background: transparent;
  color: var(--df-fg-muted);
  border: 1px solid var(--df-border);
}
.df-btn-ghost:hover { color: var(--df-fg); border-color: var(--df-border-strong); }
.df-btn-nav {
  background: var(--df-green);
  color: #fff;
  padding: 9px 20px;
  font-size: 14px;
}
.df-btn-nav:hover { background: var(--df-green-light); }
.df-btn-large { padding: 16px 36px; font-size: 17px; }

/* ---- NAV ---- */
.df-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 16px 0;
  background: rgba(15,17,23,0.85);
  backdrop-filter: var(--df-nav-blur);
  -webkit-backdrop-filter: var(--df-nav-blur);
  border-bottom: 1px solid var(--df-border);
  transition: background 0.2s ease;
}
.df-nav.scrolled { background: rgba(15,17,23,0.98); }
.df-nav-inner {
  max-width: var(--df-max-w);
  margin: 0 auto;
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}

/* ---- LOGO ---- */
.df-logo-link { text-decoration: none; display: inline-flex; align-items: center; }
.df-logo-wrap {
  position: relative;
  display: inline-block;
  padding-right: 12px;
}
.df-logo-wrap-sm .df-logo-text { font-size: 20px; }
.df-logo-text {
  font-size: 22px;
  font-weight: var(--df-w-extrabold);
  letter-spacing: -0.5px;
  color: var(--df-fg);
}
.df-logo-d {
  background: var(--df-grad-logo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.df-logo-dot {
  position: absolute;
  top: -2px; right: 0;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--df-grad-dot);
  box-shadow: 0 0 6px rgba(167,243,208,0.5);
}

/* ---- HERO ---- */
.df-hero {
  min-height: 100vh;
  padding: 120px 24px 80px;
  max-width: var(--df-max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.df-badge {
  display: inline-block;
  background: var(--df-tint-green);
  color: var(--df-green-light);
  border: 1px solid var(--df-tint-green-border);
  border-radius: var(--df-radius-pill);
  padding: 6px 16px;
  font-size: 13px;
  font-weight: var(--df-w-semibold);
  letter-spacing: 0.5px;
  margin-bottom: 24px;
}
.df-hero-title {
  font-size: var(--df-size-display);
  font-weight: var(--df-w-black);
  line-height: var(--df-lh-tight);
  margin-bottom: 20px;
  letter-spacing: var(--df-ls-display);
}
.df-gradient-text {
  background: var(--df-grad-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.df-hero-sub {
  font-size: var(--df-size-body);
  color: var(--df-fg-muted);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: var(--df-lh-loose);
}
.df-hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---- PHONE MOCKUP ---- */
.df-hero-visual { display: flex; justify-content: center; }
.df-phone {
  width: 280px;
  background: var(--df-bg-2);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-2xl);
  padding: 8px;
  box-shadow: var(--df-shadow-phone);
  animation: dfFloat var(--df-dur-float) ease-in-out infinite;
}
@keyframes dfFloat {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}
.df-phone-screen {
  background: var(--df-bg);
  border-radius: var(--df-radius-xl);
  padding: 20px 16px;
  min-height: 480px;
}
.df-mock-header { text-align: center; margin-bottom: 16px; }
.df-mock-title {
  display: inline-block;
  position: relative;
  padding-right: 8px;
  font-size: 20px;
  font-weight: var(--df-w-black);
  background: var(--df-grad-logo);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.df-mock-title::after {
  content: '';
  position: absolute;
  top: -1px; right: 0;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--df-grad-dot);
  box-shadow: 0 0 4px rgba(167,243,208,0.5);
}
.df-mock-sub { font-size: 9px; letter-spacing: 2px; color: var(--df-fg-muted); margin-top: 2px; }
.df-mock-pills { display: flex; gap: 6px; justify-content: center; margin-bottom: 16px; }
.df-pill {
  padding: 4px 12px;
  border-radius: var(--df-radius-pill);
  font-size: 11px;
  font-weight: var(--df-w-semibold);
  opacity: 0.4;
}
.df-pill.active { opacity: 1; }
.df-pill-gruen { background: rgba(29,158,117,0.2); color: var(--df-green-light); border: 1px solid rgba(29,158,117,0.4); }
.df-pill-weiss { background: var(--df-tint-white); color: #fafafa; border: 1px solid rgba(255,255,255,0.2); }
.df-pill-rot   { background: var(--df-tint-red); color: var(--df-day-rot-text); border: 1px solid var(--df-tint-red-border); }
.df-mock-card {
  background: var(--df-bg-3);
  border-radius: var(--df-radius-md);
  padding: 12px;
  margin-bottom: 10px;
  border: 1px solid var(--df-border);
}
.df-mock-label {
  font-size: 10px;
  color: var(--df-fg-muted);
  margin-bottom: 6px;
  font-weight: var(--df-w-semibold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.df-mock-stars { font-size: 18px; color: var(--df-star); }
.df-mock-water { display: flex; gap: 4px; font-size: 18px; }
.df-mock-water .drop { opacity: 0.25; }
.df-mock-water .drop.active { opacity: 1; }
.df-mock-meal { font-size: 11px; color: var(--df-fg); padding: 3px 0; }
.df-mock-meal.muted { color: var(--df-fg-muted); }

/* ---- SECTIONS SHARED ---- */
.df-section-inner {
  max-width: var(--df-max-w);
  margin: 0 auto;
  padding: var(--df-sp-10) 24px;
}
.df-eyebrow {
  font-size: var(--df-size-eyebrow);
  font-weight: var(--df-w-bold);
  letter-spacing: var(--df-ls-eyebrow);
  text-transform: uppercase;
  color: var(--df-green-light);
  margin-bottom: 12px;
}
.df-section-title {
  font-size: var(--df-size-h2);
  font-weight: var(--df-w-extrabold);
  letter-spacing: var(--df-ls-h2);
  margin-bottom: 56px;
}

/* ---- FEATURES ---- */
.df-features {
  background: var(--df-bg-2);
  border-top: 1px solid var(--df-border);
  border-bottom: 1px solid var(--df-border);
}
.df-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.df-feature-card {
  background: var(--df-bg-3);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  padding: 28px;
  transition: transform var(--df-dur-fast) var(--df-ease),
              border-color var(--df-dur-fast) var(--df-ease);
}
.df-feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(29,158,117,0.3);
}
.df-feature-icon { font-size: 32px; margin-bottom: 16px; }
.df-feature-card h3 {
  font-size: 17px;
  font-weight: var(--df-w-bold);
  margin-bottom: 10px;
}
.df-feature-card p {
  font-size: var(--df-size-meta);
  color: var(--df-fg-muted);
  line-height: var(--df-lh-body);
}

/* ---- HOW IT WORKS ---- */
.df-steps { display: flex; align-items: center; gap: 16px; }
.df-step {
  flex: 1;
  background: var(--df-bg-2);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  padding: 32px 28px;
}
.df-step-num {
  font-size: 42px;
  font-weight: var(--df-w-black);
  color: var(--df-green);
  opacity: 0.3;
  margin-bottom: 12px;
  line-height: 1;
}
.df-step h3 { font-size: 20px; font-weight: var(--df-w-bold); margin-bottom: 10px; }
.df-step p { font-size: var(--df-size-meta); color: var(--df-fg-muted); }
.df-step-arrow { font-size: 28px; color: var(--df-green); opacity: 0.4; flex-shrink: 0; }

/* ---- CTA ---- */
.df-cta {
  background: var(--df-grad-cta);
  border-top: 1px solid rgba(29,158,117,0.15);
  border-bottom: 1px solid var(--df-border);
}
.df-cta-inner { text-align: center; padding-top: 80px; padding-bottom: 80px; }
.df-cta h2 {
  font-size: clamp(26px, 3vw, 40px);
  font-weight: var(--df-w-extrabold);
  margin-bottom: 14px;
}
.df-cta p { color: var(--df-fg-muted); font-size: 17px; margin-bottom: 36px; }

/* ---- FOOTER ---- */
.df-footer { padding: 40px 24px; border-top: 1px solid var(--df-border); }
.df-footer-inner {
  max-width: var(--df-max-w); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 12px;
}
.df-footer-copy { font-size: 13px; color: var(--df-fg-muted); }

/* ---- APP OVERLAY ---- */
.df-overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(15,17,23,0.85);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}
.df-overlay.open { opacity: 1; pointer-events: all; }
.df-overlay-card {
  max-width: 420px; width: 100%;
  background: var(--df-bg-2);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  padding: 32px;
  text-align: center;
  transform: translateY(16px);
  transition: transform 0.2s ease;
}
.df-overlay.open .df-overlay-card { transform: translateY(0); }
.df-overlay-logo { font-size: 28px; font-weight: var(--df-w-extrabold); margin-bottom: 4px; }
.df-overlay-sub { font-size: 10px; letter-spacing: 2px; color: var(--df-fg-muted); margin-bottom: 20px; }
.df-overlay-body { font-size: 14px; color: var(--df-fg-muted); margin-bottom: 24px; line-height: 1.7; }
.df-mono {
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  color: var(--df-green-light);
  font-size: 13px;
}

/* ---- CODE GATE ---- */
.df-code-input-wrap { margin-bottom: 16px; }
.df-code-input {
  width: 100%;
  padding: 14px 18px;
  background: var(--df-bg-3);
  border: 1px solid var(--df-border);
  border-radius: var(--df-radius-lg);
  color: var(--df-fg);
  font-family: var(--df-font-sans);
  font-size: 18px;
  font-weight: var(--df-w-semibold);
  text-align: center;
  letter-spacing: 2px;
  outline: none;
  transition: border-color var(--df-dur-fast) var(--df-ease);
  margin-bottom: 8px;
}
.df-code-input:focus { border-color: var(--df-green); }
.df-code-input.error { border-color: var(--df-day-rot); animation: dfShake 0.3s ease; }
.df-code-error {
  font-size: 13px;
  color: var(--df-day-rot-text);
  min-height: 18px;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.df-code-error.visible { opacity: 1; }
.df-access-granted {
  font-size: 22px;
  font-weight: var(--df-w-bold);
  color: var(--df-green-light);
  margin-bottom: 8px;
}
@keyframes dfShake {
  0%,100% { transform: translateX(0); }
  25%      { transform: translateX(-6px); }
  75%      { transform: translateX(6px); }
}

/* ---- SCROLL ANIMATIONS ---- */
.df-anim {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--df-dur-mid) var(--df-ease),
              transform var(--df-dur-mid) var(--df-ease);
}
.df-anim.visible { opacity: 1; transform: translateY(0); }

/* ---- RESPONSIVE ---- */
@media (max-width: 900px) {
  .df-hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 100px;
  }
  .df-hero-sub { margin: 0 auto 36px; }
  .df-hero-actions { justify-content: center; }
  .df-hero-visual { margin-top: 8px; }
  .df-features-grid { grid-template-columns: repeat(2, 1fr); }
  .df-steps { flex-direction: column; }
  .df-step-arrow { transform: rotate(90deg); }
}
@media (max-width: 560px) {
  .df-features-grid { grid-template-columns: 1fr; }
  .df-footer-inner { flex-direction: column; text-align: center; }
}