/* ============================================================
   footer.css — SAR Marine site footer
   Prefix: sf-* · Depends on: global.css, main.css (.si-btn)
   ============================================================ */

.sf-container {
  width: 100%;
  max-width: var(--container-max, 1280px);
  margin-inline: auto;
  padding-inline: var(--container-pad, 1rem);
}

.sf-footer {
  background: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.72);
  position: relative;
}

.sf-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(224, 92, 11, 0.55),
    transparent
  );
  pointer-events: none;
}

/* Service bar (mirrors header trust strip) */
.sf-services {
  background: linear-gradient(
    180deg,
    var(--color-bg-dark-2) 0%,
    var(--color-bg-dark) 100%
  );
  border-bottom: 1px solid var(--color-border-dark);
}

.sf-services__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}

.sf-service {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  border-right: 1px solid var(--color-border-dark);
  transition: background var(--transition-fast);
}

.sf-service:last-child {
  border-right: none;
}

.sf-service:hover {
  background: rgba(255, 255, 255, 0.04);
}

.sf-service__icon {
  width: 44px;
  height: 44px;
  background: var(--color-orange-pale);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-orange-light);
  border: 1px solid rgba(224, 92, 11, 0.25);
  flex-shrink: 0;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast);
}

.sf-service:hover .sf-service__icon {
  background: rgba(224, 92, 11, 0.22);
  border-color: rgba(224, 92, 11, 0.4);
}

.sf-service__icon svg {
  width: 20px;
  height: 20px;
}

.sf-service__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sf-service__title {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-white);
  line-height: 1.3;
}

.sf-service__sub {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.45);
  line-height: 1.4;
}

/* Main Footer Grid */
.sf-main {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr 1.4fr;
  gap: var(--space-10);
  padding-block: var(--section-pad-y);
  border-bottom: 1px solid var(--color-border-dark);
}

.sf-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.sf-brand__logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 1;
}

.sf-brand__logo {
  display: block;
  height: 40px;
  width: auto;
  max-width: 100%;
  object-fit: contain;
}

/* Text fallback when the logo image is missing or fails to load */
.sf-brand__logo-text {
  display: inline-block;
  font-family: var(--font-display, inherit);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 0.02em;
  color: var(--color-white, #fff);
  line-height: 1;
}

.sf-brand__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.58);
  line-height: var(--leading-loose);
}

.sf-contact-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.sf-contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 0;
  transition: opacity var(--transition-fast);
  text-decoration: none;
}

.sf-contact-item:hover {
  opacity: 0.8;
}

.sf-contact-item__icon {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--color-orange-light);
  margin-top: 2px;
  flex-shrink: 0;
}

.sf-contact-item__icon svg {
  width: 14px;
  height: 14px;
}

.sf-contact-item__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.sf-contact-item__label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: rgba(255, 255, 255, 0.35);
}

.sf-contact-item__value,
address {
  font-size: var(--text-sm);
  color: var(--color-white);
  font-weight: 500;
  line-height: 1.4;
  font-style: normal;
}

.sf-brand__hours {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.48);
  padding: var(--space-3) var(--space-4);
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.sf-social {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

.sf-social__link {
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.55);
  transition:
    background var(--transition-fast),
    color var(--transition-fast),
    border-color var(--transition-fast);
  text-decoration: none;
}

.sf-social__link:hover {
  background: var(--color-orange);
  color: var(--color-white);
  border-color: var(--color-orange);
}

.sf-social__link svg {
  width: 16px;
  height: 16px;
}

.sf-col {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.sf-col__title {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.sf-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sf-nav li a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.5);
  transition:
    color var(--transition-fast),
    padding-left var(--transition-fast);
  padding: 3px 0;
  text-decoration: none;
}

.sf-nav li a:hover {
  color: var(--color-orange-light);
  padding-left: var(--space-2);
}

.sf-nav__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sf-nav__dot--new {
  background: var(--color-success);
}

.sf-nav__dot--used {
  background: #60a5fa;
}

.sf-nav__dot--parts {
  background: #fbbf24;
}

.sf-newsletter {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.sf-newsletter__desc {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.45);
  line-height: var(--leading-loose);
}

.sf-newsletter__field {
  display: flex;
  border: 1.5px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transition:
    border-color var(--transition-fast),
    box-shadow var(--transition-fast);
}

.sf-newsletter__field:focus-within {
  border-color: var(--color-orange);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 0 0 3px rgba(224, 92, 11, 0.2);
}

.sf-newsletter__field input {
  flex: 1;
  background: rgba(255, 255, 255, 0.06);
  border: none;
  color: var(--color-white);
  min-height: var(--field-height);
  padding: 0.625rem var(--space-4);
  font-size: var(--text-sm);
  outline: none;
  min-width: 0;
}

.sf-newsletter__field input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.sf-newsletter__field button {
  background: var(--color-orange);
  color: var(--color-white);
  min-height: var(--field-height);
  padding: 0.625rem var(--space-4);
  font-size: var(--text-sm);
  font-weight: 700;
  white-space: nowrap;
  transition: background var(--transition-fast);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.sf-newsletter__field button:hover {
  background: var(--color-orange-dark);
}

.sf-newsletter__field button svg {
  width: 16px;
  height: 16px;
}

.sf-newsletter__msg {
  display: block;
  font-size: var(--text-xs);
  margin-top: var(--space-2);
}

.sf-badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.sf-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 10px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.45);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4px var(--space-3);
  border-radius: var(--radius-full);
}

.sf-badge svg {
  width: 11px;
  height: 11px;
  color: var(--color-success);
}

/* Bottom Bar */
.sf-bottom {
  background: rgba(0, 0, 0, 0.25);
}

.sf-bottom__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block: var(--space-5);
  flex-wrap: wrap;
}

.sf-bottom__copy {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.35);
}

.sf-bottom__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.sf-bottom__links a {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--transition-fast);
  text-decoration: none;
}

.sf-bottom__links a:hover {
  color: var(--color-white);
}

.sf-bottom__sep {
  color: rgba(255, 255, 255, 0.2);
}

/* Scroll to top button */
.sf-scroll-top {
  position: fixed;
  bottom: 120px;
  right: var(--space-5);
  width: 46px;
  height: 46px;
  background: var(--color-white);
  color: var(--color-ink);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  z-index: var(--z-sticky);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition:
    opacity var(--transition-base),
    visibility var(--transition-base),
    transform var(--transition-base),
    background var(--transition-fast);
  cursor: pointer;
}

.sf-scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sf-scroll-top:hover {
  background: var(--color-orange);
  color: var(--color-white);
  border-color: var(--color-orange);
}

.sf-scroll-top svg {
  width: 20px;
  height: 20px;
}

/* ========== RESPONSIVE MEDIA QUERIES ========== */

/* Tablet landscape (≤1100px) */
@media (max-width: 1100px) {
  .sf-main {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
  }
  .sf-brand {
    grid-column: span 2;
  }
  .sf-newsletter {
    grid-column: span 2;
  }
  .sf-service {
    padding: var(--space-5);
    gap: var(--space-3);
  }
}

/* Tablet portrait (≤768px) */
@media (max-width: 768px) {
  .sf-services__inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
  }
  .sf-service {
    padding: var(--space-4);
    border-right: none;
    border-bottom: 1px solid var(--color-border-dark);
  }
  .sf-service:nth-child(odd) {
    border-right: 1px solid var(--color-border-dark);
  }
  .sf-service:nth-last-child(-n + 2) {
    border-bottom: none;
  }
  .sf-main {
    gap: var(--space-6);
    padding-block: var(--section-pad-y-sm);
  }
  .sf-col__title {
    font-size: var(--text-xs);
  }
  .sf-newsletter__field {
    flex-wrap: wrap;
  }
  .sf-newsletter__field input {
    flex: 1;
    min-width: 140px;
  }
  .sf-bottom__inner {
    flex-direction: column;
    text-align: center;
    gap: var(--space-3);
  }
  .sf-bottom__links {
    justify-content: center;
  }
}

/* Mobile (≤425px) */
@media (max-width: 425px) {
  .sf-services__inner {
    grid-template-columns: 1fr;
  }
  .sf-service {
    align-items: flex-start;
    border-right: none !important;
    border-bottom: 1px solid var(--color-border-dark);
  }
  .sf-service:last-child {
    border-bottom: none;
  }
  .sf-service__icon {
    width: 36px;
    height: 36px;
  }
  .sf-service__icon svg {
    width: 16px;
    height: 16px;
  }
  .sf-service__title {
    font-size: 12px;
  }
  .sf-service__sub {
    font-size: 10px;
  }
  .sf-main {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
  .sf-brand,
  .sf-newsletter {
    grid-column: 1;
  }
  .sf-brand__logo {
    height: 32px;
  }
  .sf-contact-item {
    gap: var(--space-2);
  }
  .sf-contact-item__icon {
    width: 28px;
    height: 28px;
  }
  .sf-contact-item__icon svg {
    width: 12px;
    height: 12px;
  }
  .sf-contact-item__value,
  address {
    font-size: var(--text-xs);
  }
  .sf-social {
    justify-content: flex-start;
  }
  .sf-newsletter__desc {
    font-size: var(--text-xs);
  }
  .sf-newsletter__field {
    flex-direction: column;
    gap: 0;
  }
  .sf-newsletter__field input {
    width: 100%;
    text-align: center;
  }
  .sf-newsletter__field button {
    width: 100%;
    justify-content: center;
  }
  .sf-badges {
    justify-content: center;
  }
  .sf-bottom__copy {
    font-size: 10px;
  }
  .sf-bottom__links a {
    font-size: 10px;
  }
  .sf-scroll-top {
    bottom: 80px;
    right: var(--space-4);
    width: 40px;
    height: 40px;
  }
}

/* Mobile (≤480px) - legacy, covered by 425px above */
@media (max-width: 480px) {
  /* Styles inherited from 425px breakpoint */
}

/* Extra small (≤375px) */
@media (max-width: 375px) {
  .sf-service__title {
    font-size: 11px;
  }
  .sf-service__sub {
    font-size: 9px;
  }
  .sf-service__icon {
    width: 32px;
    height: 32px;
  }
  .sf-service__icon svg {
    width: 14px;
    height: 14px;
  }
  .sf-bottom__links {
    gap: var(--space-2);
  }
  .sf-scroll-top {
    width: 36px;
    height: 36px;
  }
}

/* Extra small (≤360px) */
@media (max-width: 360px) {
  .sf-service__title {
    font-size: 10px;
  }
  .sf-service__sub {
    font-size: 8px;
  }
  .sf-service__icon {
    width: 28px;
    height: 28px;
  }
  .sf-service__icon svg {
    width: 12px;
    height: 12px;
  }
  .sf-bottom__links {
    gap: var(--space-1);
  }
  .sf-scroll-top {
    width: 32px;
    height: 32px;
  }
}

/* Extra small (≤320px) */
@media (max-width: 320px) {
  .sf-service__title {
    font-size: 9px;
  }
  .sf-service__sub {
    font-size: 7px;
  }
  .sf-service__icon {
    width: 24px;
    height: 24px;
  }
  .sf-service__icon svg {
    width: 10px;
    height: 10px;
  }
  .sf-bottom__copy {
    font-size: 9px;
  }
  .sf-bottom__links a {
    font-size: 9px;
  }
  .sf-scroll-top {
    width: 28px;
    height: 28px;
    bottom: 70px;
  }
}