/* —— CSS variables for L'Oréal brand palette —— */
:root {
  --loreal-black: #000000;
  --loreal-white: #ffffff;
  --loreal-gold: #e3a535; /* from brief */
  --loreal-red: #ff003b; /* from brief */
  --loreal-offwhite: #f5f5f5;
  --loreal-deep-grey: #121212;
  --border-soft: #2a2a2a;
}

/* —— basic reset —— */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* —— body + fonts —— */
body {
  font-family: "Montserrat", Arial, Helvetica, sans-serif;
  color: #ffffff;
  background: radial-gradient(circle at top, #2a2a2a 0, #000000 55%);
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
}

/* —— intro splash (L'Oréal multi-ring hero) —— */
.intro-overlay {
  position: fixed;
  inset: 0;
  background: #000000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  pointer-events: none; /* allow clicks through once faded */
}

.intro-hero {
  position: relative;
  width: 180vmin;
  height: 180vmin;
  max-width: 2200px;
  max-height: 2200px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* wrapper for svg rings */
.intro-rings {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* giant svg so outer rings go partly off-screen, rotated so stroke starts at top */
.intro-rings-svg {
  width: 200vmax;
  height: 200vmax;
  transform: rotate(-90deg);
}

/* base style for all rings */
.intro-ring-svg {
  fill: none;
  stroke: var(--loreal-gold);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-dasharray: 1; /* pathLength=1 => easy animation */
  stroke-dashoffset: 1;
  opacity: 0;
  animation: ringStroke 2.4s ease-out forwards;
}

/* subtle variations for thickness + staggered delays */
.ring-1 {
  stroke-width: 1.2;
  animation-delay: 0s;
}
.ring-2 {
  stroke-width: 1.2;
  animation-delay: 0.08s;
}
.ring-3 {
  stroke-width: 1.3;
  animation-delay: 0.16s;
}
.ring-4 {
  stroke-width: 1.3;
  animation-delay: 0.24s;
}
.ring-5 {
  stroke-width: 1.4;
  animation-delay: 0.32s;
}
.ring-6 {
  stroke-width: 1.4;
  animation-delay: 0.4s;
}
.ring-7 {
  stroke-width: 1.5;
  animation-delay: 0.48s;
}
.ring-8 {
  stroke-width: 1.5;
  animation-delay: 0.56s;
}
.ring-9 {
  stroke-width: 1.6;
  animation-delay: 0.64s;
}

/* center logo using your png, turned white */
.intro-hero-logo {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 220px;
  max-width: 40vmin;
  transform: translate(-50%, -50%) scale(0.9);
  filter: invert(1) brightness(2);
  opacity: 0;
  animation: logoIntro 2.8s ease-out 0.9s forwards;
}

/* overlay fade out after everything finishes */
.intro-overlay--hide {
  animation: introOverlayFade 0.7s ease forwards;
}

/* ring is drawn from top, then pushed out + faded */
@keyframes ringStroke {
  0% {
    stroke-dashoffset: 1;
    opacity: 0;
    transform: scale(1);
    filter: drop-shadow(0 0 0 rgba(227, 165, 53, 0));
  }
  20% {
    opacity: 1;
  }
  65% {
    stroke-dashoffset: 0;
    opacity: 1;
    transform: scale(1);
    filter: drop-shadow(0 0 18px rgba(227, 165, 53, 0.6));
  }
  100% {
    stroke-dashoffset: 0;
    opacity: 0;
    transform: scale(1.25);
    filter: drop-shadow(0 0 32px rgba(227, 165, 53, 0));
  }
}

/* logo fades in after a few rings, then jumps forward + fades out */
@keyframes logoIntro {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.9);
  }
  35% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
  }
  70% {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.02);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.25);
  }
}

/* overlay fade away */
@keyframes introOverlayFade {
  to {
    opacity: 0;
    visibility: hidden;
  }
}

/* small tweak for small screens */
@media (max-width: 480px) {
  .intro-hero-logo {
    width: 180px;
  }
}

/* main card wrapper */
.page-wrapper {
  width: 95%;
  max-width: 960px;
  min-height: 100vh;
  padding: 32px 16px 40px;
  margin: 0 auto;

  /* start hidden, fade in after intro */
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.page-wrapper.show {
  opacity: 1;
  transform: translateY(0);
}

/* —— header / brand bar —— */
.site-header {
  margin-bottom: 24px;
}

.brand-bar {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 20px;
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.9);
  border: 1px solid var(--loreal-gold);
}

.loreal-logo {
  height: 40px;
  width: auto;
  /* invert to show logo on dark background */
  filter: invert(1) brightness(1.4);
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-title {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-tagline {
  font-size: 14px;
  font-weight: 300;
  color: #e0e0e0;
}

/* —— products section —— */
.products-section {
  margin-top: 12px;
}

/* filters / search / RTL toggle row */
.controls-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 16px 0 18px;
}

.control-group {
  flex: 1 1 220px;
}

/* shared pill styling for inputs + selects */
.control-group input,
.control-group select {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: #050505;
  color: #f0f0f0;
}

/* base select styling (no built-in arrow) */
.control-group select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 40px; /* room for custom arrow */
}

.control-group select:focus,
.control-group input:focus {
  outline: 2px solid var(--loreal-gold);
  outline-offset: 2px;
}

/* category dropdown wrapper: needed for custom arrow */
.category-select {
  position: relative;
}

/* custom arrow that always sits inside the oval */
.category-select::after {
  content: "▾";
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  font-size: 12px;
  color: var(--loreal-gold);
}

/* RTL toggle button (LevelUp) */
.rtl-toggle {
  flex: 0 0 auto;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: #050505;
  color: #f0f0f0;
  font-size: 13px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.1s;
}

.rtl-toggle:hover {
  background: #111111;
}

.rtl-toggle.active {
  border-color: var(--loreal-gold);
  background: #151515;
}

/* placeholder message when no filters applied */
.placeholder-message {
  width: 100%;
  text-align: center;
  padding: 32px 16px;
  color: #b8b8b8;
  font-size: 15px;
  border-radius: 12px;
  background: rgba(7, 7, 7, 0.9);
  border: 1px dashed var(--border-soft);
}

/* products grid */
.products-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 22px;
}

/* individual product card */
.product-card {
  flex: 1 1 calc(33.333% - 12px);
  min-width: 220px;
  background: #111111;
  border-radius: 10px;
  padding: 10px 10px 12px;
  border: 1px solid var(--border-soft);
  display: flex;
  flex-direction: column;
  gap: 8px;
  cursor: pointer;
  transition: border 0.2s, transform 0.15s, box-shadow 0.15s, background 0.2s;
}

.product-card:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.6);
  border-color: rgba(227, 165, 53, 0.6);
}

.product-card.selected {
  border-color: var(--loreal-gold);
  box-shadow: 0 0 0 1px rgba(227, 165, 53, 0.55);
  background: #151515;
}

.product-card img {
  width: 100%;
  height: 130px;
  object-fit: contain;
  border-radius: 8px;
  background: #050505;
}

.product-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.product-card h3 {
  font-size: 14px;
  font-weight: 600;
}

.product-brand {
  font-size: 12px;
  color: #cccccc;
}

/* Details button to reveal description */
.details-btn {
  align-self: flex-start;
  margin-top: 4px;
  padding: 4px 10px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: transparent;
  color: #f0f0f0;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.details-btn:hover {
  border-color: var(--loreal-gold);
  background: #1c1c1c;
}

/* description is hidden by default; shown when card has .show-description */
.product-description {
  display: none;
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.4;
  color: #d0d0d0;
}

.product-card.show-description .product-description {
  display: block;
}

/* —— selected products area —— */
.selected-products {
  margin: 8px 0 30px;
  padding: 14px 16px 18px;
  border-radius: 12px;
  background: rgba(8, 8, 8, 0.95);
  border: 1px solid var(--border-soft);
}

.selected-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 10px;
}

.selected-products h2 {
  font-size: 18px;
}

.clear-btn {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid #555555;
  background: transparent;
  color: #dddddd;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.clear-btn:hover {
  background: #151515;
  border-color: #888888;
}

/* selected list */
#selectedProductsList {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 28px;
}

.empty-selected {
  font-size: 13px;
  color: #b8b8b8;
}

/* selected item pill */
.selected-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #161616;
  border: 1px solid var(--loreal-gold);
  font-size: 12px;
}

.selected-name {
  max-width: 180px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.remove-selected {
  background: transparent;
  border: none;
  color: #f5f5f5;
  font-size: 14px;
  cursor: pointer;
}

/* Generate Routine button */
.generate-btn {
  width: 100%;
  margin-top: 14px;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  color: #000;
  background: var(--loreal-gold);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s, box-shadow 0.15s;
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.7);
}

.generate-btn:hover:not(:disabled) {
  background: #f1b84e;
  transform: translateY(-1px);
}

.generate-btn:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.8);
}

.generate-btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  box-shadow: none;
}

/* —— chat layout —— */
.chatbox {
  margin: 10px 0 40px;
  padding: 18px 20px;
  background: rgba(12, 12, 12, 0.95);
  border-radius: 14px;
  border: 1px solid var(--border-soft);
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.55);
}

/* LevelUp: latest user question just above response */
.current-question {
  min-height: 24px;
  margin-bottom: 12px;
  font-size: 14px;
  color: #f0f0f0;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(182, 132, 63, 0.35);
  background: linear-gradient(
    90deg,
    rgba(182, 132, 63, 0.08),
    rgba(12, 12, 12, 0.95)
  );
}

/* chat window scroll area */
.chat-window {
  height: 380px;
  border-radius: 10px;
  padding: 14px 10px;
  font-size: 16px;
  line-height: 1.5;
  overflow-y: auto;
  background: linear-gradient(
    180deg,
    rgba(18, 18, 18, 0.95),
    rgba(8, 8, 8, 0.98)
  );
}

/* scrollbars for desktop */
.chat-window::-webkit-scrollbar {
  width: 8px;
}
.chat-window::-webkit-scrollbar-track {
  background: #111;
}
.chat-window::-webkit-scrollbar-thumb {
  background: #444;
  border-radius: 999px;
}

/* —— message bubbles (LevelUp: chat conversation UI) —— */
.msg {
  display: flex;
  margin-bottom: 10px;
}

.msg-bubble {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 16px;
  font-size: 15px;
  white-space: pre-wrap;
}

/* user messages: right side, gold bubble */
.msg.user {
  justify-content: flex-end;
}

.msg.user .msg-bubble {
  background: var(--loreal-gold);
  color: #000000;
  border-bottom-right-radius: 4px;
}

/* AI messages: left side, dark bubble with subtle border */
.msg.ai {
  justify-content: flex-start;
}

.msg.ai .msg-bubble {
  background: #161616;
  color: #f8f8f8;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-bottom-left-radius: 4px;
}

/* loading / subtle system notes */
.msg.ai.system-note .msg-bubble {
  font-size: 13px;
  opacity: 0.8;
}

/* —— input row —— */
.chat-form {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.chat-form input {
  flex: 1;
  padding: 12px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-soft);
  background: #050505;
  color: #f0f0f0;
  font-size: 15px;
}

.chat-form input::placeholder {
  color: #777777;
}

.chat-form input:focus {
  outline: 2px solid var(--loreal-gold);
  outline-offset: 2px;
}

/* send button */
.chat-form button {
  font-size: 18px;
  background: var(--loreal-gold);
  color: #000;
  border: none;
  padding: 0;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.45);
}

.chat-form button .material-icons {
  font-size: 24px;
}

.chat-form button:hover {
  background: #f1b84e;
  transform: translateY(-1px);
}

.chat-form button:active {
  transform: translateY(0);
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.6);
}

.chat-form button:focus {
  outline: 2px solid #ffffff;
  outline-offset: 2px;
}

/* —— visually hidden —— */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* —— footer —— */
.site-footer {
  margin-top: 8px;
  text-align: center;
  font-size: 13px;
  color: #d0d0d0;
}

.footer-note {
  margin-bottom: 4px;
  font-style: italic;
  color: #aaaaaa;
}

.site-footer nav {
  margin-top: 8px;
}

.site-footer a {
  margin: 0 8px;
  color: var(--loreal-gold);
  text-decoration: none;
  font-weight: 500;
}

.site-footer a:hover {
  text-decoration: underline;
}

/* —— responsive tweaks —— */
@media (max-width: 800px) {
  .product-card {
    flex: 1 1 calc(50% - 10px);
  }
}

@media (max-width: 600px) {
  .brand-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-title {
    font-size: 18px;
  }

  .controls-row {
    flex-direction: column;
  }

  .chat-window {
    height: 320px;
  }

  .msg-bubble {
    max-width: 100%;
  }
}

/* —— RTL layout tweaks (LevelUp) —— */
[dir="rtl"] body {
  direction: rtl;
}

[dir="rtl"] .brand-bar {
  flex-direction: row-reverse;
}

[dir="rtl"] .controls-row {
  flex-direction: row-reverse;
}

[dir="rtl"] .selected-products,
[dir="rtl"] .chatbox {
  text-align: right;
}

[dir="rtl"] .chat-form {
  flex-direction: row-reverse;
}