/* ==========================================================================
   SENERGY — reusable components
   ========================================================================== */

/* --- Buttons -------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  min-height: 54px;
  padding: 0 1.9rem;
  border-radius: var(--r-pill);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-align: center;
  cursor: pointer;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease),
    background-color 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  color: #fff;
  background: var(--grad-accent);
  background-size: 180% 100%;
  background-position: 0% 50%;
  box-shadow: 0 14px 34px -14px rgba(53, 118, 207, 0.75);
}

.btn--primary:hover {
  background-position: 100% 50%;
  box-shadow: 0 20px 44px -14px rgba(146, 128, 212, 0.8);
}

.btn--ghost {
  color: var(--ink);
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.6);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn--ghost:hover {
  border-color: var(--blue-500);
  color: var(--blue-700);
  background: #fff;
}

.btn--light {
  color: var(--ink);
  background: #fff;
  box-shadow: var(--shadow-md);
}

.btn--wa {
  color: #fff;
  background: #25d366;
  box-shadow: 0 14px 34px -16px rgba(37, 211, 102, 0.9);
}

.btn--wa:hover {
  background: #1fbb59;
}

.btn--kaspi {
  color: #fff;
  background: #f14635;
  box-shadow: 0 14px 34px -16px rgba(241, 70, 53, 0.85);
}

.btn--kaspi:hover {
  background: #d93b2b;
}

.btn--block {
  width: 100%;
}

.btn--sm {
  min-height: 44px;
  padding: 0 1.3rem;
  font-size: 0.85rem;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

@media (max-width: 480px) {
  .btn-row {
    width: 100%;
  }
  .btn-row > .btn {
    flex: 1 1 100%;
  }
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-weight: 700;
  color: var(--blue-700);
  transition: gap 0.3s var(--ease), color 0.3s var(--ease);
}

.link-arrow:hover {
  gap: 0.85em;
  color: var(--lilac-700);
}

/* --- Chips & badges ------------------------------------------------------- */

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.5em 1.05em;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--ink-2);
  background: rgba(255, 255, 255, 0.7);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.chip__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--grad-accent);
}

.chip--blue {
  color: var(--blue-700);
  border-color: var(--blue-100);
  background: var(--blue-050);
}
.chip--green {
  color: var(--green-700);
  border-color: var(--green-100);
  background: var(--green-050);
}
.chip--lilac {
  color: var(--lilac-700);
  border-color: var(--lilac-100);
  background: var(--lilac-050);
}

.num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--blue-700);
  background: var(--blue-050);
  border: 1px solid var(--blue-100);
}

.num--green {
  color: var(--green-700);
  background: var(--green-050);
  border-color: var(--green-100);
}
.num--lilac {
  color: var(--lilac-700);
  background: var(--lilac-050);
  border-color: var(--lilac-100);
}

/* --- Cards ---------------------------------------------------------------- */

.card {
  position: relative;
  display: grid;
  gap: 0.85rem;
  align-content: start;
  padding: clamp(1.4rem, 2.4vw, 2.1rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: #fff;
  box-shadow: var(--shadow-sm);
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-color 0.5s var(--ease);
}

.card--hover:hover {
  transform: translateY(-6px);
  border-color: var(--blue-100);
  box-shadow: var(--shadow-md);
}

.card--glass {
  background: rgba(255, 255, 255, 0.62);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.card--bare {
  background: none;
  border: 0;
  box-shadow: none;
  padding: 0;
}

.card__title {
  font-family: var(--font-body);
  font-size: var(--fs-h4);
  font-weight: 700;
  line-height: 1.3;
  color: var(--ink);
}

.card__text {
  font-size: 0.97rem;
  color: var(--ink-2);
}

.card__topline {
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  border-radius: var(--r-lg) var(--r-lg) 0 0;
  background: var(--grad-accent);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
}

.card--hover:hover .card__topline {
  opacity: 1;
}

/* --- Icon tile ------------------------------------------------------------ */

.itile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--blue-050);
  color: var(--blue-700);
}

.itile svg {
  width: 24px;
  height: 24px;
}

.itile--green {
  background: var(--green-050);
  color: var(--green-700);
}
.itile--lilac {
  background: var(--lilac-050);
  color: var(--lilac-700);
}

/* --- Bullet lists --------------------------------------------------------- */

.blist {
  display: grid;
  gap: 0.7rem;
}

.blist li {
  position: relative;
  padding-left: 1.75rem;
  font-size: 0.97rem;
}

.blist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--grad-accent);
}

.blist--check li::before {
  content: "";
  top: 0.42em;
  left: 0.1rem;
  width: 8px;
  height: 14px;
  border: solid var(--green-500);
  border-width: 0 2.5px 2.5px 0;
  border-radius: 1px;
  background: none;
  transform: rotate(42deg);
}

.section--deep .blist li {
  color: rgba(255, 255, 255, 0.8);
}

/* --- Accordion ------------------------------------------------------------ */

.acc {
  display: grid;
  gap: 0.75rem;
}

.acc__item {
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  background: #fff;
  overflow: hidden;
  transition: border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.acc__item.is-open {
  border-color: var(--blue-100);
  box-shadow: var(--shadow-md);
}

.acc__btn {
  display: flex;
  align-items: center;
  gap: 1rem;
  width: 100%;
  padding: clamp(1rem, 1.7vw, 1.35rem) clamp(1.1rem, 2vw, 1.6rem);
  text-align: left;
  transition: background-color 0.35s var(--ease);
}

.acc__btn:hover {
  background: var(--paper-3);
}

.acc__label {
  flex: 1;
  min-width: 0;
  display: grid;
  gap: 0.15rem;
}

.acc__title {
  font-size: 1.02rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink);
}

.acc__sub {
  font-size: var(--fs-small);
  color: var(--ink-3);
}

.acc__icon {
  flex: none;
  position: relative;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: transform 0.45s var(--ease), background-color 0.35s var(--ease),
    border-color 0.35s var(--ease);
}

.acc__icon::before,
.acc__icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 13px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink-2);
  transform: translate(-50%, -50%);
  transition: transform 0.45s var(--ease), background-color 0.35s var(--ease);
}

.acc__icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.acc__item.is-open .acc__icon {
  background: var(--grad-accent);
  border-color: transparent;
  transform: rotate(180deg);
}

.acc__item.is-open .acc__icon::before,
.acc__item.is-open .acc__icon::after {
  background: #fff;
}

.acc__item.is-open .acc__icon::after {
  transform: translate(-50%, -50%) rotate(0deg);
}

/* Smooth open/close without JS height math */
.acc__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease);
}

.acc__item.is-open .acc__panel {
  grid-template-rows: 1fr;
}

.acc__panelInner {
  overflow: hidden;
}

.acc__body {
  padding: 0 clamp(1.1rem, 2vw, 1.6rem) clamp(1.2rem, 2vw, 1.6rem);
  display: grid;
  gap: 1rem;
  font-size: 0.97rem;
}

.acc__body > * {
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.45s var(--ease) 0.08s, transform 0.45s var(--ease) 0.08s;
}

.acc__item.is-open .acc__body > * {
  opacity: 1;
  transform: none;
}

/* Compact "read more" inline disclosure */
.more {
  border-top: 1px dashed var(--line-strong);
  padding-top: 0.9rem;
}

.more__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--blue-700);
}

.more__btn svg {
  width: 14px;
  height: 14px;
  transition: transform 0.4s var(--ease);
}

.more.is-open .more__btn svg {
  transform: rotate(180deg);
}

.more__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease);
}

.more.is-open .more__panel {
  grid-template-rows: 1fr;
}

.more__panelInner {
  overflow: hidden;
}

.more__body {
  padding-top: 0.85rem;
  font-size: 0.94rem;
  color: var(--ink-2);
  display: grid;
  gap: 0.7rem;
}

/* --- Tabs ----------------------------------------------------------------- */

.tabs__list {
  display: inline-flex;
  gap: 0.35rem;
  padding: 0.35rem;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: rgba(255, 255, 255, 0.75);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.tabs__btn {
  padding: 0.7em 1.5em;
  border-radius: var(--r-pill);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink-3);
  white-space: nowrap;
  transition: color 0.3s var(--ease), background 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

.tabs__btn:hover {
  color: var(--ink);
}

.tabs__btn.is-active {
  color: #fff;
  background: var(--grad-accent);
  box-shadow: 0 10px 24px -12px rgba(53, 118, 207, 0.8);
}

@media (max-width: 560px) {
  .tabs__list {
    display: flex;
    flex-wrap: wrap;
    border-radius: var(--r-md);
  }
  .tabs__btn {
    padding: 0.65em 1.05em;
    font-size: 0.82rem;
  }
}

.tabs__panel[hidden] {
  display: none;
}

.tabs__panel {
  animation: tabIn 0.55s var(--ease) both;
}

@keyframes tabIn {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Vertical tabs (desktop) */
.vtabs {
  display: grid;
  grid-template-columns: minmax(240px, 320px) minmax(0, 1fr);
  gap: clamp(1.2rem, 2.5vw, 2.5rem);
  align-items: start;
}

.vtabs__list {
  display: grid;
  gap: 0.4rem;
  position: sticky;
  top: 104px;
}

.vtabs__btn {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.85rem 1.1rem;
  border: 1px solid transparent;
  border-radius: var(--r-md);
  text-align: left;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--ink-3);
  transition: all 0.4s var(--ease);
}

.vtabs__btn:hover {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.7);
}

.vtabs__btn.is-active {
  color: var(--ink);
  background: #fff;
  border-color: var(--line);
  box-shadow: var(--shadow-md);
}

.vtabs__btn .num {
  width: 34px;
  height: 34px;
  font-size: 0.78rem;
}

.vtabs__btn.is-active .num {
  color: #fff;
  background: var(--grad-accent);
  border-color: transparent;
}

/* Beats the .card display rule that would otherwise defeat [hidden] */
.vtabs__panel[hidden] {
  display: none;
}

.vtabs__panel:not([hidden]) {
  animation: tabIn 0.55s var(--ease) both;
}

@media (max-width: 900px) {
  .vtabs {
    grid-template-columns: minmax(0, 1fr);
  }
  .vtabs__list {
    display: none;
  }
  /* Without the tab rail every field is shown as a stacked list */
  .vtabs__panel[hidden] {
    display: grid;
  }
}

/* --- Flip cards (myths) --------------------------------------------------- */

.flip {
  perspective: 1400px;
  min-height: 290px;
  cursor: pointer;
}

.flip__inner {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: inherit;
  transform-style: preserve-3d;
  transition: transform 0.85s var(--ease);
}

.flip.is-flipped .flip__inner {
  transform: rotateY(180deg);
}

@media (hover: hover) and (pointer: fine) {
  .flip:hover .flip__inner {
    transform: rotateY(180deg);
  }
}

.flip__face {
  position: absolute;
  inset: 0;
  display: grid;
  gap: 0.9rem;
  align-content: center;
  padding: clamp(1.5rem, 2.6vw, 2.2rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.flip__face--front {
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.flip__face--back {
  transform: rotateY(180deg);
  color: #fff;
  background: var(--grad-deep);
  border-color: transparent;
  box-shadow: var(--shadow-lg);
}

.flip__face--back .card__title {
  color: #fff;
}

.flip__face--back .card__text {
  color: rgba(255, 255, 255, 0.82);
}

.flip__hint {
  font-size: var(--fs-micro);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* --- Slider --------------------------------------------------------------- */

.slider {
  position: relative;
}

.slider__track {
  display: flex;
  gap: clamp(1rem, 1.8vw, 1.5rem);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding-bottom: 0.75rem;
  scrollbar-width: none;
}

.slider__track::-webkit-scrollbar {
  display: none;
}

.slider__slide {
  flex: 0 0 min(420px, 84vw);
  scroll-snap-align: start;
}

.slider__nav {
  display: flex;
  gap: 0.6rem;
  margin-top: 1.4rem;
}

.slider__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  color: var(--ink);
  background: #fff;
  transition: all 0.35s var(--ease);
}

.slider__btn:hover {
  border-color: var(--blue-500);
  color: var(--blue-700);
  transform: translateY(-2px);
}

.slider__btn svg {
  width: 18px;
  height: 18px;
}

/* --- Form ----------------------------------------------------------------- */

.field {
  display: grid;
  gap: 0.4rem;
}

.field__label {
  font-size: var(--fs-small);
  font-weight: 700;
  color: var(--ink);
}

.field__input {
  width: 100%;
  min-height: 54px;
  padding: 0 1.1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: #fff;
  transition: border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

textarea.field__input {
  min-height: 110px;
  padding: 0.85rem 1.1rem;
  resize: vertical;
}

.field__input::placeholder {
  color: var(--ink-3);
}

.field__input:focus {
  outline: none;
  border-color: var(--blue-500);
  box-shadow: 0 0 0 4px rgba(53, 118, 207, 0.12);
}

.field__input:user-invalid {
  border-color: #e0524a;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: var(--fs-small);
  color: var(--ink-2);
  cursor: pointer;
}

.check input {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--blue-500);
}

/* --- Floating messenger --------------------------------------------------- */

.fab {
  position: fixed;
  right: clamp(0.9rem, 2vw, 1.6rem);
  bottom: clamp(0.9rem, 2vw, 1.6rem);
  z-index: 80;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.85rem 1.2rem 0.85rem 0.95rem;
  border-radius: var(--r-pill);
  font-size: 0.9rem;
  font-weight: 700;
  color: #fff;
  background: #25d366;
  box-shadow: 0 18px 40px -14px rgba(37, 211, 102, 0.75);
  opacity: 0;
  transform: translateY(20px) scale(0.9);
  pointer-events: none;
  transition: all 0.5s var(--ease);
}

.fab.is-visible {
  opacity: 1;
  transform: none;
  pointer-events: auto;
}

.fab:hover {
  background: #1fbb59;
  transform: translateY(-3px);
}

.fab svg {
  width: 24px;
  height: 24px;
}

@media (max-width: 520px) {
  .fab__text {
    display: none;
  }
  .fab {
    padding: 0.95rem;
  }
}

/* --- Progress bar --------------------------------------------------------- */

.readbar {
  position: fixed;
  inset: 0 0 auto;
  height: 3px;
  z-index: 120;
  background: var(--grad-accent);
  transform-origin: 0 50%;
  transform: scaleX(0);
}