/* ==========================================================================
   Base Styles & CSS Variables
   ========================================================================== */
:root {
  --content-max-width: 1440px;
  --content-padding: 24px;
  --c-text: #18181b;
  --c-accent: #009d90;
  --c-accent-hover: #00897d;
  --c-bg: #ffffff;
  --c-bg-alt: #f5f7f8;
  --c-border: #e4e7ea;
  --c-text-soft: #5a6168;
  --c-accent-fg: #fff;
  --c-focus: #17b3c8;
  font-family: "Manrope", system-ui, sans-serif;
  --radius-sm: 8px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-md:
    0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
  --shadow-lg:
    0 10px 32px -8px rgba(0, 0, 0, 0.1), 0 4px 12px -4px rgba(0, 0, 0, 0.08);
  --dur-fast: 0.2s;
}

html[data-theme="dark"] {
  --c-bg: #101315;
  --c-bg-alt: #181c1f;
  --c-border: #2a3136;
  --c-text: #f2f5f6;
  --c-text-soft: #9aa3aa;
  --shadow-md:
    0 4px 6px -1px rgba(0, 0, 0, 0.8), 0 2px 4px -2px rgba(0, 0, 0, 0.8);
  --shadow-lg:
    0 10px 32px -8px rgba(0, 0, 0, 0.7), 0 4px 12px -4px rgba(0, 0, 0, 0.6);
}

/* ==========================================================================
   Footer Component Styles
   ========================================================================== */

.ftr {
  background-color: var(--c-bg-alt);
  border-top: 1px solid var(--c-border);
  margin-top: 80px;
  padding: 60px 0 0;
  color: var(--c-text);
}

.ftr__main {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 0 var(--content-padding);
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 60px;
  align-items: start;
}

.ftr__brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
}

.ftr__brand .logo {
  margin-bottom: 8px;
}

.ftr__brand .btn--primary {
  background: var(--c-accent);
  color: var(--c-accent-fg);
  border-color: transparent;
}
.ftr__brand .btn--primary:hover {
  background: var(--c-accent-hover);
}

.ftr__tagline {
  font-size: 15px;
  line-height: 1.6;
  color: var(--c-text-soft);
  max-width: 320px;
  margin: 0;
}

.ftr__nav {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.ftr__nav-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ftr__nav-title {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  opacity: 0.6;
  margin: 0;
  padding-left: 12px;
}

.ftr__nav-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ftr__nav-list a {
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  color: var(--c-text);
  transition:
    background 0.2s,
    color 0.2s;
  display: block;
}

.ftr__nav-list a:hover {
  background: var(--c-bg);
  color: var(--c-text);
}

.ftr__bottom {
  border-top: 1px solid var(--c-border);
  margin-top: 60px;
  padding: 24px var(--content-padding);
  max-width: var(--content-max-width);
  margin-inline: auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.ftr__bottom-left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--c-text-soft);
}

.ftr-email {
  background: none;
  border: 0;
  padding: 0;
  font: inherit;
  color: var(--c-accent);
  cursor: pointer;
  position: relative;
}

.copy-feedback {
  font-size: 12px;
  color: var(--c-accent);
  opacity: 0;
  transition: 0.4s;
}

.copy-feedback.active {
  opacity: 1;
}

.ftr__bottom-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.to-top {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  border: 1px solid var(--c-border);
  background: var(--c-bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-soft);
  transition:
    color 0.2s,
    border-color 0.2s,
    transform 0.2s;
}
.to-top:hover {
  color: var(--c-accent);
  border-color: var(--c-accent);
  transform: translateY(-3px);
}
.to-top svg {
  width: 22px;
  height: 22px;
}

/* Responsive Footer Styles */
@media (max-width: 900px) {
  .ftr__main {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .ftr__nav {
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  }
}

@media (max-width: 500px) {
  .ftr__bottom {
    flex-direction: column-reverse;
    align-items: flex-start;
  }
  .ftr__bottom-right {
    width: 100%;
    justify-content: space-between;
  }
}