/* ============================================
   Smart Film Page - Dedicated Styles
   ============================================ */

/* ---------- Video Hero ---------- */
.sf-video-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.sf-video-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.sf-video-bg video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sf-video-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(8, 15, 36, 0.75) 0%,
    rgba(13, 27, 62, 0.6) 50%,
    rgba(8, 15, 36, 0.8) 100%
  );
}

.sf-hero-content {
  position: relative;
  z-index: 2;
  max-width: 700px;
  padding: 100px 0 60px;
  animation: heroSlideIn 0.8s cubic-bezier(0.4, 0, 0.2, 1) 0.2s both;
}

.sf-hero-content .breadcrumb {
  justify-content: flex-start;
  margin-bottom: 16px;
}

.sf-hero-content h1 {
  color: var(--white);
  margin-bottom: 20px;
  line-height: 1.12;
  font-size: clamp(2.2rem, 5vw, 3.5rem);
}

.sf-hero-sub {
  color: var(--gray-300) !important;
  font-size: 1.15rem;
  line-height: 1.7;
  max-width: 580px;
  margin-bottom: 32px;
}

.sf-hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.sf-hero-trust {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--gray-400);
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.sf-hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

@media (max-width: 768px) {
  .sf-video-hero {
    min-height: 85vh;
  }

  .sf-hero-content {
    padding: 80px 0 40px;
    text-align: center;
  }

  .sf-hero-content .breadcrumb {
    justify-content: center;
  }

  .sf-hero-sub {
    margin-left: auto;
    margin-right: auto;
  }

  .sf-hero-buttons {
    justify-content: center;
  }

  .sf-hero-trust {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .sf-hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .sf-hero-buttons .btn {
    width: 100%;
  }
}

/* ---------- How It Works Steps ---------- */
.sf-how-it-works { background: var(--white); }

/* Video Demo Duo */
.sf-video-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 800px;
  margin: 36px auto 0;
}

.sf-video-demo {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 16px 48px rgba(0,0,0,0.15);
  border: 3px solid var(--gray-200);
  transition: var(--transition);
}

.sf-video-demo:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 56px rgba(0,0,0,0.2);
  border-color: var(--primary);
}

.sf-video-demo video {
  width: 100%;
  display: block;
}

.sf-video-caption {
  text-align: center;
  font-size: 0.8rem;
  color: var(--gray-500);
  margin: 12px 0 0 !important;
  font-style: italic;
}

@media (max-width: 600px) {
  .sf-video-duo {
    grid-template-columns: 1fr;
    max-width: 360px;
  }
}

.sf-steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.sf-step {
  flex: 1;
  min-width: 220px;
  max-width: 280px;
  text-align: center;
  padding: 32px 20px;
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.sf-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.sf-step-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.sf-step h4 { margin-bottom: 8px; }
.sf-step p { font-size: 0.9rem; margin: 0; }

.sf-step-arrow {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: 800;
  padding-top: 40px;
}

/* ---------- Applications Grid ---------- */
.sf-applications { padding-bottom: 40px; }

.sf-app-grid {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 40px;
}

.sf-app-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--white);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--gray-200);
  transition: var(--transition);
}

.sf-app-card:hover {
  box-shadow: 0 16px 48px rgba(0,0,0,0.1);
  transform: translateY(-4px);
}

.sf-app-card--reverse { direction: rtl; }
.sf-app-card--reverse > * { direction: ltr; }

.sf-app-img {
  min-height: 320px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.sf-app-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--gradient-gold);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 50px;
}

.sf-app-card--reverse .sf-app-tag {
  left: auto;
  right: 16px;
}

.sf-app-body {
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.sf-app-body h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
}

.sf-app-body > p {
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 16px;
}

.sf-app-body ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sf-app-body ul li {
  padding: 6px 0 6px 24px;
  position: relative;
  font-size: 0.9rem;
  color: var(--gray-700);
}

.sf-app-body ul li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* ---------- Price Calculator ---------- */
.sf-calculator-section {
  background: var(--white);
  padding: 80px 0;
}

.sf-calc-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 40px;
  align-items: start;
}

.sf-calc-card {
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-xl);
  padding: 32px;
  position: sticky;
  top: 100px;
}

.sf-calc-toggle {
  display: flex;
  background: var(--gray-100);
  border-radius: 50px;
  padding: 4px;
  margin-bottom: 24px;
}

.sf-calc-toggle-btn {
  flex: 1;
  padding: 12px 20px;
  border: none;
  background: none;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  color: var(--gray-600);
}

.sf-calc-toggle-btn.active {
  background: var(--gradient-gold);
  color: var(--white);
  box-shadow: var(--shadow-gold);
}

.sf-calc-mode {
  display: flex;
  gap: 24px;
  margin-bottom: 20px;
}

.sf-calc-mode label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-700);
  cursor: pointer;
}

.sf-calc-mode input[type="radio"] {
  accent-color: var(--primary);
}

.sf-calc-row {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
}

.sf-calc-field {
  flex: 1;
}

.sf-calc-field--wide { flex: 2; }

.sf-calc-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gray-600);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sf-calc-field input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: var(--font-body);
  transition: var(--transition);
}

.sf-calc-field input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(240, 165, 0, 0.12);
}

.sf-calc-results {
  margin-top: 24px;
  border-top: 2px solid var(--gray-100);
  padding-top: 20px;
}

.sf-calc-result-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  font-size: 0.95rem;
  color: var(--gray-600);
  border-bottom: 1px solid var(--gray-100);
}

.sf-calc-result-row strong {
  color: var(--secondary);
  font-size: 1rem;
}

.sf-calc-result-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0 0;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--secondary);
}

.sf-calc-result-total strong {
  font-size: 1.5rem;
  color: var(--primary);
}

.sf-calc-disclaimer {
  font-size: 0.75rem;
  color: var(--gray-400);
  margin-top: 12px;
  margin-bottom: 0;
  font-style: italic;
}

/* ---------- Comparison Table ---------- */
.sf-calc-info {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sf-calc-info h3 {
  font-size: 1.2rem;
  margin-bottom: 4px;
}

.sf-compare-table {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.sf-compare-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--gray-100);
}

.sf-compare-row:last-child { border-bottom: none; }

.sf-compare-row span {
  padding: 10px 14px;
  color: var(--gray-700);
}

.sf-compare-row span:first-child {
  font-weight: 600;
  color: var(--secondary);
  background: var(--gray-50);
}

.sf-compare-header {
  background: var(--secondary) !important;
}

.sf-compare-header span {
  color: var(--white) !important;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: none !important;
}

/* ---------- Specs Card ---------- */
.sf-specs-card {
  background: var(--gray-50);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.sf-specs-card h4 {
  font-size: 1rem;
  margin-bottom: 16px;
  color: var(--secondary);
}

.sf-spec-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--gray-200);
}

.sf-spec-row:last-child { border-bottom: none; }

.sf-spec-row span:first-child {
  color: var(--gray-600);
}

.sf-spec-row span:last-child {
  font-weight: 700;
  color: var(--secondary);
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .sf-calc-wrapper {
    grid-template-columns: 1fr;
  }
  .sf-calc-card {
    position: static;
  }
}

@media (max-width: 768px) {
  .sf-app-card,
  .sf-app-card--reverse {
    grid-template-columns: 1fr;
    direction: ltr;
  }

  .sf-app-img {
    min-height: 220px;
  }

  .sf-app-tag {
    left: 16px !important;
    right: auto !important;
  }

  .sf-steps {
    flex-direction: column;
    align-items: center;
  }

  .sf-step { max-width: 100%; }
  .sf-step-arrow { display: none; }

  .sf-calc-row {
    flex-direction: column;
  }

  .sf-calc-mode {
    flex-direction: column;
    gap: 8px;
  }
}