/* ===================================================================
   SAHNE+ Animation System — Scroll Reveals, Staggers, Letter Drops
   =================================================================== */

/* --- Base hidden states for reveal animations --- */
[data-anim] {
  opacity: 0;
  will-change: transform, opacity;
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Specific initial transforms per animation type */
[data-anim="up"]        { transform: translateY(30px); }
[data-anim="down"]      { transform: translateY(-30px); }
[data-anim="left"]      { transform: translateX(-35px); }
[data-anim="right"]     { transform: translateX(35px); }
[data-anim="scale"]     { transform: scale(0.96); }
[data-anim="scale-up"]  { transform: scale(0.95) translateY(20px); }
[data-anim="fade"]      { transform: none; }
[data-anim="flip"]      { transform: rotateX(15deg) translateY(20px); perspective: 800px; }

/* Revealed state — applied by JS */
[data-anim].is-revealed {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1) rotateX(0deg);
}

/* --- Stagger delays for children (applied via data-stagger on parent) --- */
[data-stagger] > [data-anim]:nth-child(1)  { transition-delay: 0ms; }
[data-stagger] > [data-anim]:nth-child(2)  { transition-delay: 60ms; }
[data-stagger] > [data-anim]:nth-child(3)  { transition-delay: 120ms; }
[data-stagger] > [data-anim]:nth-child(4)  { transition-delay: 180ms; }
[data-stagger] > [data-anim]:nth-child(5)  { transition-delay: 240ms; }
[data-stagger] > [data-anim]:nth-child(6)  { transition-delay: 300ms; }
[data-stagger] > [data-anim]:nth-child(7)  { transition-delay: 360ms; }
[data-stagger] > [data-anim]:nth-child(8)  { transition-delay: 420ms; }
[data-stagger] > [data-anim]:nth-child(9)  { transition-delay: 480ms; }
[data-stagger] > [data-anim]:nth-child(10) { transition-delay: 540ms; }

/* --- Letter Drop Animation --- */
.letter-drop {
  display: inline-flex;
  flex-wrap: wrap;
  overflow: hidden;
}

.letter-drop .letter-word {
  display: inline-flex;
  white-space: pre;
}

.letter-drop .letter-char {
  display: inline-block;
  opacity: 0;
  transform: translateY(-100%) rotateX(-80deg);
  transition:
    opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform-origin: top center;
}

.letter-drop .letter-space {
  display: inline-block;
  width: 0.3em;
}

.letter-drop.is-revealed .letter-char {
  opacity: 1;
  transform: translateY(0) rotateX(0deg);
}

/* --- Overline shimmer animation --- */
@keyframes shimmerSlide {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.overline-anim.is-revealed {
  background: linear-gradient(
    90deg,
    var(--color-accent) 0%,
    var(--color-accent-light) 40%,
    #fff 50%,
    var(--color-accent-light) 60%,
    var(--color-accent) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmerSlide 2s ease-out 0.3s forwards;
}

/* --- Hero glow pulse --- */
@keyframes heroPulse {
  0%, 100% { opacity: 0.6; transform: translateX(-50%); }
  50%      { opacity: 1; transform: translateX(-50%); }
}

.hero.anim-ready::before {
  animation: heroPulse 4s ease-in-out infinite;
}

/* --- Counter roll (for step numbers) --- */
@keyframes counterRoll {
  0%   { transform: translateY(100%) rotateX(90deg); opacity: 0; }
  60%  { transform: translateY(-5%) rotateX(-5deg); opacity: 1; }
  100% { transform: translateY(0) rotateX(0); opacity: 1; }
}

.step__number[data-anim].is-revealed {
  animation: counterRoll 0.7s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

/* --- Card hover lift enhancement --- */
.card[data-anim].is-revealed {
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    border-color var(--transition-base),
    box-shadow var(--transition-base);
}

/* --- FAQ item slide-in --- */
.faq-item[data-anim] {
  transform: translateX(-30px);
  opacity: 0;
}

.faq-item[data-anim].is-revealed {
  transform: translateX(0);
  opacity: 1;
}

/* --- Budget table animation --- */

/* Whole table wrapper */
.budget-table-wrap[data-anim] {
  opacity: 0;
  transform: translateY(20px);
}

.budget-table-wrap[data-anim].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Header glow sweep */
@keyframes tableHeaderSweep {
  0%   { background-position: -200% center; }
  100% { background-position: 200% center; }
}

.budget-table-wrap.is-revealed thead {
  background: linear-gradient(
    90deg,
    var(--color-bg-tertiary) 0%,
    var(--color-bg-tertiary) 35%,
    var(--color-accent-glow-strong) 50%,
    var(--color-bg-tertiary) 65%,
    var(--color-bg-tertiary) 100%
  );
  background-size: 200% 100%;
  animation: tableHeaderSweep 1.2s ease-out 0.3s forwards;
}

/* Row stagger reveal */
.budget-table tbody tr {
  opacity: 0;
  transform: translateY(15px);
  transition:
    opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.5s cubic-bezier(0.16, 1, 0.3, 1),
    background var(--transition-fast);
}

.budget-table-wrap.is-revealed tbody tr {
  opacity: 1;
  transform: translateY(0);
}

.budget-table-wrap.is-revealed tbody tr:nth-child(1) { transition-delay: 0.15s; }
.budget-table-wrap.is-revealed tbody tr:nth-child(2) { transition-delay: 0.3s; }
.budget-table-wrap.is-revealed tbody tr:nth-child(3) { transition-delay: 0.45s; }
.budget-table-wrap.is-revealed tbody tr:nth-child(4) { transition-delay: 0.6s; }
.budget-table-wrap.is-revealed tbody tr:nth-child(5) { transition-delay: 0.75s; }
.budget-table-wrap.is-revealed tbody tr:nth-child(6) { transition-delay: 0.9s; }

/* Price cell glow flash */
@keyframes priceGlow {
  0%   { color: var(--color-text-muted); text-shadow: none; }
  50%  { color: var(--color-accent-light); text-shadow: 0 0 12px var(--color-accent-glow-strong); }
  100% { color: var(--color-accent-light); text-shadow: none; }
}

.budget-table-wrap.is-revealed .price-range {
  animation: priceGlow 0.8s ease-out forwards;
}

.budget-table-wrap.is-revealed tbody tr:nth-child(1) .price-range { animation-delay: 0.4s; }
.budget-table-wrap.is-revealed tbody tr:nth-child(2) .price-range { animation-delay: 0.55s; }
.budget-table-wrap.is-revealed tbody tr:nth-child(3) .price-range { animation-delay: 0.7s; }
.budget-table-wrap.is-revealed tbody tr:nth-child(4) .price-range { animation-delay: 0.85s; }

/* Price starts invisible until glow fires */
.budget-table-wrap .price-range {
  color: var(--color-text-muted);
}

/* Bottom border gold sweep on table */
@keyframes tableBorderSweep {
  0%   { transform: scaleX(0); }
  100% { transform: scaleX(1); }
}

.budget-table-wrap.is-revealed::after {
  content: '';
  display: block;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  transform-origin: left center;
  animation: tableBorderSweep 0.8s cubic-bezier(0.16, 1, 0.3, 1) 0.2s forwards;
  transform: scaleX(0);
  border-radius: 1px;
}

/* --- Contact form field focus glow --- */
.contact-form-wrapper.is-revealed .form-input:focus,
.contact-form-wrapper.is-revealed .form-textarea:focus {
  box-shadow:
    0 0 0 3px var(--color-accent-glow),
    0 0 20px var(--color-accent-glow);
}

/* --- Smooth section divider draw --- */
@keyframes drawLine {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

.section-divider[data-anim].is-revealed {
  transform-origin: center;
  animation: drawLine 0.8s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* --- Image reveal (simple fade + slide, no clip-path) --- */
.content-media__img[data-anim] {
  opacity: 0;
  transform: translateX(30px);
  transition:
    opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.content-media--reverse .content-media__img[data-anim] {
  transform: translateX(-30px);
}

.content-media__img[data-anim].is-revealed {
  opacity: 1;
  transform: translateX(0);
}

/* --- Button entrance pulse --- */
@keyframes btnPulse {
  0%   { box-shadow: var(--shadow-glow); }
  50%  { box-shadow: var(--shadow-glow-strong), 0 0 40px var(--color-accent-glow); }
  100% { box-shadow: var(--shadow-glow); }
}

.btn-group[data-anim].is-revealed .btn--primary {
  animation: btnPulse 1.5s ease-in-out 0.5s;
}

/* --- Related pages tag pop --- */
@keyframes tagPop {
  0%   { transform: scale(0); opacity: 0; }
  70%  { transform: scale(1.08); }
  100% { transform: scale(1); opacity: 1; }
}

.related-pages li[data-anim].is-revealed {
  animation: tagPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.related-pages li[data-anim] {
  opacity: 0;
  transform: scale(0);
}

/* --- Reduced motion override --- */
@media (prefers-reduced-motion: reduce) {
  [data-anim],
  .letter-drop .letter-char,
  .overline-anim.is-revealed,
  .content-media__img[data-anim] {
    opacity: 1 !important;
    transform: none !important;
    animation: none !important;
    transition: none !important;
  }
}