/* =========================================================
   МастерСантехник — базовые стили
   ========================================================= */

* {
  font-family: 'Inter', ui-sans-serif, system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  overflow-x: hidden;
}

::selection {
  background: #14b8a6;
  color: #fff;
}

/* -------- Header shrink on scroll -------- */
#header.scrolled {
  box-shadow: 0 4px 24px rgba(11, 28, 51, 0.06);
}

/* -------- Scroll-reveal animation -------- */
[data-animate] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

[data-animate].in-view {
  opacity: 1;
  transform: translateY(0);
}

/* -------- Language switch buttons -------- */
.lang-btn {
  color: #64748b;
}

.lang-btn.active {
  background: #0b1c33;
  color: #fff;
}

/* -------- Price tabs -------- */
.price-tab {
  border-color: #e2e8f0;
  color: #475569;
  background: #fff;
}

.price-tab.active {
  background: #0b1c33;
  border-color: #0b1c33;
  color: #fff;
}

/* -------- Mobile menu links -------- */
.mobile-link:last-of-type {
  border-bottom: none;
}

/* -------- Modal -------- */
#call-modal-overlay.open {
  display: flex;
}

#call-modal-box.open {
  transform: scale(1);
  opacity: 1;
}

/* -------- Sticky mobile CTA -------- */
#sticky-cta.visible {
  transform: translateY(0);
}

/* -------- Custom scrollbar (subtle) -------- */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: #f1f5f9;
}

::-webkit-scrollbar-thumb {
  background: #94a3b8;
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: #64748b;
}

/* -------- Boiler repair hero animation -------- */
.boiler-cover {
  animation: boilerCover 8s ease-in-out infinite;
  transform-origin: 200px 250px;
}
@keyframes boilerCover {
  0%, 14%   { opacity: 1; transform: translateY(0); }
  22%, 68%  { opacity: 0; transform: translateY(-16px); }
  78%, 100% { opacity: 1; transform: translateY(0); }
}

.boiler-internals { animation: boilerInternals 8s ease-in-out infinite; }
@keyframes boilerInternals {
  0%, 16%   { opacity: 0; }
  24%, 66%  { opacity: 1; }
  74%, 100% { opacity: 0; }
}

.boiler-pump { animation: boilerPump 8s ease-in-out infinite; transform-origin: 160px 212px; }
@keyframes boilerPump {
  0%, 26%   { transform: scale(1); filter: drop-shadow(0 0 0 rgba(45, 212, 191, 0)); }
  32%       { transform: scale(1.18); filter: drop-shadow(0 0 9px rgba(45, 212, 191, 0.9)); }
  38%, 100% { transform: scale(1); filter: drop-shadow(0 0 0 rgba(45, 212, 191, 0)); }
}

.boiler-pcb { animation: boilerPcb 8s ease-in-out infinite; transform-origin: 240px 212px; }
@keyframes boilerPcb {
  0%, 40%   { filter: drop-shadow(0 0 0 rgba(255, 106, 61, 0)); }
  48%       { filter: drop-shadow(0 0 10px rgba(255, 106, 61, 0.95)); }
  56%, 100% { filter: drop-shadow(0 0 0 rgba(255, 106, 61, 0)); }
}

.boiler-check { animation: boilerCheck 8s ease-in-out infinite; transform-origin: 276px 144px; }
@keyframes boilerCheck {
  0%, 78% { opacity: 0; transform: scale(0.5); }
  84%     { opacity: 1; transform: scale(1.2); }
  92%     { opacity: 1; transform: scale(1); }
  97%     { opacity: 1; transform: scale(1); }
  100%    { opacity: 0; transform: scale(0.9); }
}

@media (prefers-reduced-motion: reduce) {
  .boiler-cover, .boiler-internals, .boiler-pump, .boiler-pcb, .boiler-check {
    animation: none !important;
  }
  .boiler-internals { opacity: 0; }
  .boiler-check { opacity: 0; }
}

/* -------- Service card animation: boiler service (Котлы tab) -------- */
.svcboiler-cover {
  animation: svcBoilerCover 9s ease-in-out infinite;
}
@keyframes svcBoilerCover {
  0%, 11%   { opacity: 1; transform: translateY(0); }
  20%, 62%  { opacity: 0; transform: translateY(-150px); }
  72%, 100% { opacity: 1; transform: translateY(0); }
}

.svcboiler-pump {
  transform-origin: 0 0;
  animation: svcBoilerPump 9s ease-in-out infinite;
}
@keyframes svcBoilerPump {
  0%, 18%   { transform: translate(115px, 140px) rotate(0deg); }
  30%, 50%  { transform: translate(58px, 205px) rotate(-22deg); }
  62%, 100% { transform: translate(115px, 140px) rotate(0deg); }
}

.svcboiler-pcb {
  transform-origin: 0 0;
  animation: svcBoilerPcb 9s ease-in-out infinite;
}
@keyframes svcBoilerPcb {
  0%, 18%   { transform: translate(185px, 140px) rotate(0deg); filter: drop-shadow(0 0 0 rgba(255, 106, 61, 0)); }
  30%, 50%  { transform: translate(244px, 205px) rotate(18deg); filter: drop-shadow(0 0 9px rgba(255, 106, 61, 0.9)); }
  62%, 100% { transform: translate(185px, 140px) rotate(0deg); filter: drop-shadow(0 0 0 rgba(255, 106, 61, 0)); }
}

.svcboiler-wrench {
  transform-origin: 0 0;
  opacity: 0;
  animation: svcBoilerWrench 9s ease-in-out infinite;
}
@keyframes svcBoilerWrench {
  0%, 24%   { opacity: 0; transform: translate(58px, 205px) rotate(-10deg); }
  30%       { opacity: 1; transform: translate(58px, 205px) rotate(15deg); }
  36%       { opacity: 1; transform: translate(58px, 205px) rotate(-15deg); }
  42%       { opacity: 1; transform: translate(58px, 205px) rotate(10deg); }
  50%, 100% { opacity: 0; transform: translate(58px, 205px) rotate(-10deg); }
}

.svcboiler-check {
  transform-origin: 222px 150px;
  animation: svcBoilerCheck 9s ease-in-out infinite;
}
@keyframes svcBoilerCheck {
  0%, 76% { opacity: 0; transform: scale(0.5); }
  82%     { opacity: 1; transform: scale(1.2); }
  90%, 96% { opacity: 1; transform: scale(1); }
  100%    { opacity: 0; transform: scale(0.9); }
}

.svcboiler-sensor {
  transform-origin: 0 0;
  animation: svcBoilerSensor 9s ease-in-out infinite;
}
@keyframes svcBoilerSensor {
  0%, 18%   { transform: translate(150px, 100px) rotate(0deg); }
  30%, 50%  { transform: translate(150px, 26px) rotate(-14deg); }
  62%, 100% { transform: translate(150px, 100px) rotate(0deg); }
}

.svcboiler-display-off {
  animation: svcBoilerDisplayOff 9s ease-in-out infinite;
}
@keyframes svcBoilerDisplayOff {
  0%, 9%    { opacity: 1; }
  13%, 100% { opacity: 0; }
}

.svcboiler-display-on {
  animation: svcBoilerDisplayOn 9s ease-in-out infinite;
}
@keyframes svcBoilerDisplayOn {
  0%, 88% { opacity: 0; }
  94%, 100% { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .svcboiler-cover, .svcboiler-pump, .svcboiler-pcb, .svcboiler-sensor, .svcboiler-wrench, .svcboiler-check, .svcboiler-display-off, .svcboiler-display-on {
    animation: none !important;
  }
  .svcboiler-pump { transform: translate(115px, 140px); }
  .svcboiler-pcb { transform: translate(185px, 140px); }
  .svcboiler-sensor { transform: translate(150px, 100px); }
  .svcboiler-wrench { opacity: 0; }
  .svcboiler-display-off { opacity: 0; }
  .svcboiler-display-on { opacity: 1; }
  .svcboiler-check { opacity: 0; }
}

/* -------- Service card animation: plumbing service (Сантехника tab) -------- */
.svcplumb-handle {
  transform-box: fill-box;
  transform-origin: center;
  animation: svcPlumbHandle 9s ease-in-out infinite;
}
@keyframes svcPlumbHandle {
  0%, 24%   { transform: rotate(0deg); }
  32%       { transform: rotate(-28deg); }
  40%       { transform: rotate(16deg); }
  48%, 100% { transform: rotate(0deg); }
}

.svcplumb-wrench {
  transform-origin: 0 0;
  opacity: 0;
  animation: svcPlumbWrench 9s ease-in-out infinite;
}
@keyframes svcPlumbWrench {
  0%, 22%   { opacity: 0; transform: translate(150px, 98px) rotate(0deg); }
  28%       { opacity: 1; transform: translate(150px, 98px) rotate(0deg); }
  32%       { opacity: 1; transform: translate(150px, 98px) rotate(-28deg); }
  40%       { opacity: 1; transform: translate(150px, 98px) rotate(16deg); }
  46%       { opacity: 1; transform: translate(150px, 98px) rotate(0deg); }
  52%, 100% { opacity: 0; transform: translate(150px, 98px) rotate(0deg); }
}

.svcplumb-shine {
  animation: svcPlumbShine 9s ease-in-out infinite;
}
@keyframes svcPlumbShine {
  0%, 26%   { opacity: 0; }
  32%, 44%  { opacity: 1; }
  50%, 100% { opacity: 0; }
}

.svcplumb-drip {
  transform-origin: 0 0;
  animation: svcPlumbDrip 9s ease-in-out infinite;
}
@keyframes svcPlumbDrip {
  0%, 40%   { opacity: 1; transform: translate(196px, 158px) scale(1); }
  50%, 100% { opacity: 0; transform: translate(196px, 158px) scale(0.3); }
}

.svcplumb-check {
  transform-origin: 222px 150px;
  animation: svcPlumbCheck 9s ease-in-out infinite;
}
@keyframes svcPlumbCheck {
  0%, 56% { opacity: 0; transform: scale(0.5); }
  64%     { opacity: 1; transform: scale(1.2); }
  74%, 96% { opacity: 1; transform: scale(1); }
  100%    { opacity: 0; transform: scale(0.9); }
}

@media (prefers-reduced-motion: reduce) {
  .svcplumb-handle, .svcplumb-wrench, .svcplumb-shine, .svcplumb-drip, .svcplumb-check {
    animation: none !important;
  }
  .svcplumb-wrench { opacity: 0; }
  .svcplumb-shine { opacity: 0; }
  .svcplumb-drip { opacity: 1; transform: translate(196px, 158px); }
  .svcplumb-check { opacity: 0; }
}

/* -------- Service category tabs (Котлы / Сантехника) -------- */
.service-tab {
  border-color: #e2e8f0;
  color: #475569;
  background: #fff;
}

.service-tab.active {
  background: #0b1c33;
  border-color: #0b1c33;
  color: #fff;
}

/* -------- Focus visibility for accessibility -------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid #14b8a6;
  outline-offset: 2px;
}