/* Global base styles and resets tuned for the chat UI */
* { box-sizing: border-box; }
html, body { height: 100%; overflow-x: hidden; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Cairo, Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% 10%, var(--aths-special) 0%, transparent 60%),
              radial-gradient(1000px 700px at 90% 20%, color-mix(in oklab, var(--coriander) 70%, transparent) 0%, transparent 60%),
              var(--bg);
  min-height: 100dvh;
  direction: rtl;
}

/* Background decorative blobs */
.bg-blobs { position: fixed; inset: 0; overflow: hidden; pointer-events: none; z-index: -1; }
.bg-blobs::after { content: ""; position: absolute; inset: 0; background: radial-gradient(900px 600px at 50% -120px, rgba(0,0,0,.12) 0%, transparent 70%); }
.blob { position: absolute; filter: blur(40px); opacity: .16; transform: translateZ(0); will-change: transform; }
.blob-1 { width: 36vmax; height: 36vmax; background: color-mix(in oklab, var(--coriander) 50%, transparent); left: -8vmax; top: -8vmax; border-radius: 40% 60% 55% 45%; animation: float 20s ease-in-out infinite; }
.blob-2 { width: 32vmax; height: 32vmax; background: color-mix(in oklab, var(--olivine) 40%, transparent); right: -6vmax; top: -6vmax; border-radius: 55% 45% 50% 50%; animation: float 24s ease-in-out infinite reverse; }
.blob-3 { width: 28vmax; height: 28vmax; background: color-mix(in oklab, var(--jaffa) 30%, transparent); right: -4vmax; bottom: -8vmax; border-radius: 50% 50% 40% 60%; animation: float 28s ease-in-out infinite; }
@keyframes float { 0%,100% { transform: translateY(0) translateX(0); } 50% { transform: translateY(1.5%) translateX(-0.8%); } }

.site-header {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; backdrop-filter: saturate(140%) blur(8px);
  background: linear-gradient(to bottom, color-mix(in oklab, var(--surface) 85%, transparent), transparent);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-logo { width: 96px; height: 96px; object-fit: contain; filter: drop-shadow(0 1px 0 rgba(0,0,0,.05)); }
.brand-title { font-family: Outfit, Inter, system-ui; font-weight: 700; letter-spacing: .2px; font-size: clamp(1.1rem, 2.8vw, 1.35rem); }
.brand-sub { display: inline-block; margin-left: 6px; padding: 2px 8px; border-radius: 999px; background: color-mix(in oklab, var(--accent) 18%, transparent); color: color-mix(in oklab, var(--text) 60%, transparent); font-size: 13px; }
.header-actions { display: flex; align-items: center; gap: 12px; }

.theme-toggle { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 50%; border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); background: var(--surface); box-shadow: var(--shadow-1); color: var(--text); cursor: pointer; }
.theme-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.theme-toggle svg { width: 22px; height: 22px; fill: currentColor; }
[data-theme="dark"] .icon-sun { display: none; }
:root .icon-moon { display: none; }
[data-theme="dark"] .icon-moon { display: block; }

/* User Type Switch */
.user-type-switch { 
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-switch {
  margin-bottom: 32px;
  animation: fade-in-up 0.6s ease-out;
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.user-type-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-radius: 30px;
  border: 2px solid color-mix(in oklab, var(--text) 12%, transparent);
  background: color-mix(in oklab, var(--surface) 95%, var(--bg));
  box-shadow: var(--shadow-1), inset 0 1px 0 color-mix(in oklab, var(--text) 8%, transparent);
  cursor: pointer;
  transition: all .3s ease;
  min-width: 200px;
  gap: 16px;
}

.user-type-toggle:hover {
  border-color: color-mix(in oklab, var(--accent) 25%, transparent);
  box-shadow: var(--shadow-2), inset 0 1px 0 color-mix(in oklab, var(--text) 12%, transparent);
  transform: translateY(-1px);
}

.user-type-toggle:focus-visible { 
  outline: 2px solid var(--accent); 
  outline-offset: 2px; 
}

.user-type-labels {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  font-size: 16px;
  font-weight: 600;
  z-index: 2;
}

.user-type-label {
  padding: 6px 12px;
  border-radius: 18px;
  color: var(--text);
  transition: all .3s ease;
  white-space: nowrap;
  position: relative;
  z-index: 2;
  font-weight: 600;
}

.user-type-slider {
  position: absolute;
  top: 6px;
  left: 6px;
  width: calc(50% - 6px);
  height: calc(100% - 12px);
  background: linear-gradient(135deg, 
    color-mix(in oklab, var(--accent) 90%, var(--surface)), 
    color-mix(in oklab, var(--accent) 70%, var(--surface))
  );
  border-radius: 24px;
  transition: transform .4s cubic-bezier(0.4, 0.0, 0.2, 1), background .3s ease;
  box-shadow: 
    0 2px 12px color-mix(in oklab, var(--accent) 25%, transparent),
    0 1px 4px color-mix(in oklab, var(--text) 15%, transparent),
    inset 0 1px 0 color-mix(in oklab, var(--accent) 100%, #fff);
  z-index: 1;
}

/* When buyer is selected (default) */
.user-type-toggle[data-user-type="buyer"] .user-type-slider {
  transform: translateX(calc(100% + 6px));
}

.user-type-toggle[data-user-type="buyer"] .user-type-label.buyer {
  color: #ffffff;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.user-type-toggle[data-user-type="buyer"] .user-type-label.farmer {
  color: color-mix(in oklab, var(--text) 100%, transparent);
  font-weight: 600;
}

/* When farmer is selected */
.user-type-toggle[data-user-type="farmer"] .user-type-slider {
  transform: translateX(0);
  background: linear-gradient(135deg, 
    color-mix(in oklab, var(--coriander) 85%, var(--surface)), 
    color-mix(in oklab, var(--coriander) 65%, var(--surface))
  );
  box-shadow: 
    0 2px 12px color-mix(in oklab, var(--coriander) 25%, transparent),
    0 1px 4px color-mix(in oklab, var(--text) 15%, transparent),
    inset 0 1px 0 color-mix(in oklab, var(--coriander) 100%, #fff);
}

.user-type-toggle[data-user-type="farmer"] .user-type-label.farmer {
  color: #ffffff;
  font-weight: 700;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.user-type-toggle[data-user-type="farmer"] .user-type-label.buyer {
  color: color-mix(in oklab, var(--text) 100%, transparent);
  font-weight: 600;
}

/* Dark mode specific adjustments */
[data-theme="dark"] .user-type-toggle {
  background: color-mix(in oklab, var(--surface) 90%, var(--bg));
  border-color: color-mix(in oklab, var(--text) 15%, transparent);
  box-shadow: var(--shadow-1), inset 0 1px 0 color-mix(in oklab, var(--text) 12%, transparent);
}

[data-theme="dark"] .user-type-slider {
  background: linear-gradient(135deg, 
    color-mix(in oklab, var(--accent) 85%, var(--bg)), 
    color-mix(in oklab, var(--accent) 65%, var(--bg))
  );
  box-shadow: 
    0 2px 12px color-mix(in oklab, var(--accent) 20%, transparent),
    0 1px 4px color-mix(in oklab, var(--accent) 10%, transparent),
    inset 0 1px 0 color-mix(in oklab, var(--accent) 80%, #000);
}

[data-theme="dark"] .user-type-toggle[data-user-type="farmer"] .user-type-slider {
  background: linear-gradient(135deg, 
    color-mix(in oklab, var(--coriander) 80%, var(--bg)), 
    color-mix(in oklab, var(--coriander) 60%, var(--bg))
  );
  box-shadow: 
    0 2px 12px color-mix(in oklab, var(--coriander) 20%, transparent),
    0 1px 4px color-mix(in oklab, var(--coriander) 10%, transparent),
    inset 0 1px 0 color-mix(in oklab, var(--coriander) 80%, #000);
}

[data-theme="dark"] .user-type-toggle[data-user-type="buyer"] .user-type-label.buyer,
[data-theme="dark"] .user-type-toggle[data-user-type="farmer"] .user-type-label.farmer {
  color: #ffffff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .user-type-label {
  color: color-mix(in oklab, var(--text) 85%, transparent);
}

[data-theme="dark"] .user-type-toggle[data-user-type="buyer"] .user-type-label.farmer,
[data-theme="dark"] .user-type-toggle[data-user-type="farmer"] .user-type-label.buyer {
  color: color-mix(in oklab, var(--text) 80%, transparent);
  font-weight: 600;
}

/* Hero Section */
.hero { text-align: center; padding: 8vh 24px 10vh; }
.hero-inner { max-width: 720px; margin: 0 auto; }
.hero h1 { font-family: Cairo, Outfit, Inter, system-ui; font-size: clamp(2.4rem, 7vw, 3.5rem); line-height: 1.2; margin: 0 0 16px; font-weight: 700; }
.hero .hi { display: block; font-size: 0.7em; color: var(--accent); margin-bottom: 8px; }
.hero-sub { font-size: clamp(1rem, 3vw, 1.125rem); color: var(--muted); max-width: 600px; margin: 0 auto 24px; line-height: 1.5; }
.hero-ctas { display: flex; justify-content: center; gap: 12px; }
.btn-cta { background: var(--accent); color: #1a150d; padding: 12px 24px; border-radius: 999px; text-decoration: none; font-weight: 600; border: none; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease; }
.btn-cta:hover { transform: translateY(-1px); box-shadow: var(--shadow-2); }

.app { max-width: 920px; margin: 0 auto; padding: 16px; padding-bottom: 120px; min-height: calc(100vh - 140px); display: flex; flex-direction: column; }

/* Starter grid */
.starter-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 14px; }
@media (min-width: 768px) { .starter-grid { grid-template-columns: repeat(4, 1fr); } }
.starter-card {
  position: relative;
  border-radius: 20px;
  padding: 18px;
  text-align: left;
  background: var(--surface);
  border: 1px solid color-mix(in oklab, var(--text) 8%, transparent);
  box-shadow: var(--shadow-1);
  color: var(--text);
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
}
.starter-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
  border-color: color-mix(in oklab, var(--accent) 40%, transparent);
}
.starter-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.starter-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: color-mix(in oklab, var(--accent) 15%, transparent);
  color: var(--accent);
}
.starter-icon svg { width: 22px; height: 22px; fill: currentColor; }
.starter-card span { font-weight: 600; line-height: 1.3; font-size: 15px; }

/* Thread */
.thread { display: flex; flex-direction: column; gap: 12px; margin-top: 18px; flex: 1; }
.msg { display: flex; gap: 10px; align-items: center; }
.msg.user { justify-content: flex-end; }
.msg.assistant { justify-content: flex-start; }
.avatar { width: 28px; height: 28px; border-radius: 50%; background: color-mix(in oklab, var(--accent) 30%, #fff); box-shadow: var(--shadow-1); display: grid; place-items: center; font-weight: 700; color: var(--text); }
.strawberry-avatar { width: 32px; height: 32px; border-radius: 0; background: none; box-shadow: none; object-fit: contain; }
.bubble { max-width: min(78%, 720px); padding: 12px 14px; border-radius: 18px; background: var(--surface-strong); box-shadow: var(--shadow-1); border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); line-height: 1.45; animation: pop .2s ease-out; text-align: right; }
.msg.user .bubble { background: color-mix(in oklab, var(--accent) 18%, var(--surface-strong)); border-color: color-mix(in oklab, var(--accent) 35%, transparent); }
@keyframes pop { from { transform: translateY(4px) scale(.98); opacity: .0; } to { transform: translateY(0) scale(1); opacity: 1; } }

/* Typing */
.typing { display: inline-flex; align-items: center; gap: 8px; }
.typing .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--muted); animation: bounce 1.2s infinite ease-in-out; }
.typing .dot:nth-child(2) { animation-delay: .12s; }
.typing .dot:nth-child(3) { animation-delay: .24s; }
@keyframes bounce { 0%,80%,100% { transform: translateY(0); opacity: .6; } 40% { transform: translateY(-3px); opacity: 1; } }

/* Composer */
.composer-wrap { position: fixed; left: 0; right: 0; bottom: 0; padding: 12px 16px 18px; background: linear-gradient(to top, var(--bg) 30%, color-mix(in oklab, var(--bg) 95%, transparent) 70%, transparent); }
.composer { max-width: 920px; margin: 0 auto; display: grid; grid-template-columns: auto 1fr; gap: 10px; align-items: center; padding: 10px; border-radius: 20px; background: var(--surface); box-shadow: var(--shadow-2); border: 1px solid color-mix(in oklab, var(--text) 10%, transparent); }
.input { resize: none; border: none; outline: none; background: transparent; color: var(--text); font: inherit; padding: 10px 2px; max-height: 40dvh; overflow-y: hidden; text-align: right; }
.input::placeholder { color: var(--muted); }
.composer-actions { display: flex; align-items: center; gap: 8px; }
.btn { border: none; cursor: pointer; border-radius: 12px; padding: 10px 14px; font-weight: 600; transition: background-color .2s ease, color .2s ease; }
.btn.send {
  background: var(--accent);
  color: #1a150d;
  display: grid;
  place-items: center;
  min-width: 48px;
  position: relative;
  overflow: hidden;
}
.btn.send svg { width: 20px; height: 20px; fill: currentColor; }
.btn.send.typing {
  background: color-mix(in oklab, var(--text) 25%, var(--surface));
  color: var(--text);
}

.btn.send .send-icon,
.btn.send .stop-text {
  display: grid;
  place-items: center;
  transition: transform .2s cubic-bezier(0.22, 1, 0.36, 1), opacity .2s ease-out;
  will-change: transform, opacity;
}

.btn.send.typing .send-icon {
  transform: translateY(-150%);
  opacity: 0;
}

.btn.send .stop-text {
  position: absolute;
  inset: 0;
  transform: translateY(150%);
  opacity: 0;
  font-weight: 600;
}

.btn.send.typing .stop-text {
  transform: translateY(0);
  opacity: 1;
}
.composer .btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }


@media (min-width: 1024px) { .brand-logo { width: 112px; height: 112px; } }

/* Mobile responsive adjustments */
@media (max-width: 768px) {
  .header-actions { gap: 10px; }
  .user-type-toggle {
    padding: 10px 16px;
    min-width: 180px;
    gap: 12px;
  }
  .user-type-labels { font-size: 15px; }
  .user-type-label { padding: 5px 10px; }
  .hero-switch { margin-bottom: 24px; }
}

/* Mobile contrast adjustments */
@media (max-width: 640px) {
  .bg-blobs::after { background: radial-gradient(800px 520px at 50% -100px, rgba(0,0,0,.18) 0%, transparent 65%); }
  .blob { opacity: .12; filter: blur(48px); }
  .site-header { padding: 12px 16px; }
  .brand-logo { width: 80px; height: 80px; }
  .user-type-toggle {
    padding: 8px 14px;
    min-width: 160px;
    gap: 10px;
  }
  .user-type-labels { font-size: 14px; }
  .user-type-label { padding: 4px 8px; }
  .hero-switch { margin-bottom: 20px; }
}