/* ============================================
   Service Detail Page — Premium Redesign
   ============================================ */

/* --- Page Shell --- */
.service-detail-main {
    overflow-x: hidden;
}

/* =============================================
   1. HERO SECTION — Premium Split Layout
   ============================================= */
.sd-hero {
    padding: clamp(100px, 15vw, 160px) 0 clamp(80px, 12vw, 140px);
    background: linear-gradient(135deg, #0a1628 0%, #0d2550 60%, #111d38 100%);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.sd-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background-image: radial-gradient(circle at 2px 2px, rgba(255,255,255,0.04) 1px, transparent 0);
    background-size: 44px 44px;
    pointer-events: none;
}

/* Decorative gradient orb */
.sd-hero::after {
    content: '';
    position: absolute;
    top: -40%; right: -10%;
    width: 700px; height: 700px;
    background: radial-gradient(circle, rgba(30,107,255,0.15) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.sd-hero-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 6vw, 80px);
    align-items: center;
    position: relative;
    z-index: 2;
}

.sd-hero-content {
    max-width: 640px;
}

.sd-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.07);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 10px 20px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    margin-bottom: 28px;
    border: 1px solid rgba(255,255,255,0.1);
    letter-spacing: 0.02em;
}

.sd-hero-badge i {
    color: var(--gold);
    font-size: 0.8rem;
}

.sd-hero h1 {
    font-size: clamp(2.4rem, 5vw, 3.8rem);
    line-height: 1.08;
    margin-bottom: 24px;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.sd-hero p {
    font-size: clamp(1rem, 1.5vw, 1.2rem);
    color: rgba(255,255,255,0.55);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 520px;
}

.sd-hero-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Hero visual card (right side) */
.sd-hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.sd-hero-visual-card {
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 28px;
    padding: 40px 36px;
    width: 100%;
    max-width: 420px;
    position: relative;
}

.sd-hero-visual-card::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 29px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(30,107,255,0.3), transparent 60%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.sd-visual-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.sd-visual-stat {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 18px;
    padding: 24px 20px;
    text-align: center;
    transition: var(--transition);
}

.sd-visual-stat:hover {
    background: rgba(30,107,255,0.1);
    border-color: rgba(30,107,255,0.2);
    transform: translateY(-3px);
}

.sd-visual-stat .stat-icon {
    font-size: 1.5rem;
    color: var(--accent-light);
    margin-bottom: 12px;
    display: block;
}

.sd-visual-stat .stat-val {
    display: block;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--white);
    font-family: var(--font-main);
    line-height: 1.2;
    margin-bottom: 4px;
}

.sd-visual-stat .stat-label {
    font-size: 0.78rem;
    color: rgba(255,255,255,0.45);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* =============================================
   2. OVERVIEW SECTION — 2-Column Premium
   ============================================= */
.sd-overview {
    padding: clamp(80px, 12vw, 140px) 0;
    background: var(--white);
    position: relative;
}

.sd-overview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(40px, 6vw, 80px);
    align-items: start;
}

.sd-overview-text .section-label {
    margin-bottom: 16px;
}

.sd-overview-text h2 {
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    margin-bottom: 24px;
    color: var(--primary);
    line-height: 1.15;
}

.sd-overview-text > p {
    font-size: 1.05rem;
    color: var(--gray-600);
    line-height: 1.85;
    max-width: 540px;
}

.sd-feature-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.sd-feature-card {
    background: var(--white);
    padding: 28px 24px;
    border-radius: 20px;
    border: 1px solid var(--gray-100);
    transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.sd-feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 3px;
    background: var(--grad-accent);
    opacity: 0;
    transition: opacity 0.35s ease;
}

.sd-feature-card:hover {
    border-color: rgba(30,107,255,0.18);
    box-shadow: 0 20px 50px -12px rgba(10,22,40,0.1);
    transform: translateY(-6px);
}

.sd-feature-card:hover::before {
    opacity: 1;
}

.sd-feature-icon {
    width: 52px;
    height: 52px;
    background: var(--accent-glow);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.3rem;
    margin-bottom: 18px;
    transition: var(--transition);
}

.sd-feature-card:hover .sd-feature-icon {
    background: var(--grad-accent);
    color: var(--white);
    transform: scale(1.05);
}

.sd-feature-card h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
    line-height: 1.3;
}

.sd-feature-card p {
    font-size: 0.88rem;
    line-height: 1.6;
    margin-bottom: 0;
    color: var(--gray-600);
}

/* =============================================
   3. PROCESS SECTION — Premium Timeline
   ============================================= */
.sd-process {
    padding: clamp(80px, 12vw, 140px) 0;
    background: var(--off-white);
    position: relative;
}

.sd-process-header {
    text-align: center;
    margin-bottom: clamp(48px, 6vw, 80px);
}

.sd-process-header h2 {
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    color: var(--primary);
}

.sd-process-track {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
}

/* Connector line */
.sd-process-track::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), rgba(30,107,255,0.2));
    z-index: 0;
}

.sd-process-step {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 0 16px;
}

.sd-process-num {
    width: 72px;
    height: 72px;
    background: var(--white);
    border: 2px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--accent);
    font-family: var(--font-main);
    margin: 0 auto 24px;
    transition: all 0.4s ease;
    box-shadow: 0 8px 24px -6px rgba(30,107,255,0.15);
    position: relative;
}

.sd-process-step:hover .sd-process-num {
    background: var(--grad-accent);
    color: var(--white);
    border-color: transparent;
    transform: scale(1.1);
    box-shadow: 0 12px 32px -6px rgba(30,107,255,0.4);
}

.sd-process-step h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.sd-process-step p {
    font-size: 0.88rem;
    color: var(--gray-600);
    line-height: 1.65;
    max-width: 220px;
    margin: 0 auto;
}

/* =============================================
   4. TECHNOLOGIES SECTION — Badge Grid
   ============================================= */
.sd-tech {
    padding: clamp(80px, 12vw, 140px) 0;
    background: var(--white);
}

.sd-tech-header {
    text-align: center;
    margin-bottom: clamp(40px, 5vw, 64px);
}

.sd-tech-header h2 {
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    color: var(--primary);
}

.sd-tech-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    max-width: 800px;
    margin: 0 auto;
}

.sd-tech-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: var(--white);
    border: 1.5px solid var(--gray-100);
    border-radius: var(--radius-full);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gray-800);
    transition: all 0.3s ease;
    cursor: default;
}

.sd-tech-badge i {
    color: var(--accent);
    font-size: 1rem;
    transition: var(--transition);
}

.sd-tech-badge:hover {
    background: var(--accent-glow);
    border-color: rgba(30,107,255,0.25);
    color: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px -6px rgba(30,107,255,0.2);
}

.sd-tech-badge:hover i {
    transform: scale(1.15);
}

/* =============================================
   5. FAQ SECTION — Professional Accordion
   ============================================= */
.sd-faq-section {
    padding: clamp(80px, 12vw, 140px) 0;
    background: var(--off-white);
}

.sd-faq-header {
    text-align: center;
    margin-bottom: clamp(40px, 5vw, 64px);
}

.sd-faq-header h2 {
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    color: var(--primary);
}

.sd-faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sd-faq-item {
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: 18px;
    overflow: hidden;
    transition: all 0.35s ease;
}

.sd-faq-item:hover {
    border-color: rgba(30,107,255,0.15);
    box-shadow: 0 8px 24px -8px rgba(10,22,40,0.06);
}

.sd-faq-item.open {
    border-color: rgba(30,107,255,0.2);
    box-shadow: 0 12px 32px -10px rgba(10,22,40,0.08);
}

.sd-faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 28px;
    font-weight: 600;
    font-size: 1.05rem;
    color: var(--primary);
    cursor: pointer;
    transition: color 0.3s ease;
    user-select: none;
}

.sd-faq-q:hover {
    color: var(--accent);
}

.sd-faq-q .faq-toggle {
    width: 32px;
    height: 32px;
    background: var(--accent-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 0.8rem;
    color: var(--accent);
    transition: all 0.35s ease;
}

.sd-faq-item.open .sd-faq-q .faq-toggle {
    background: var(--grad-accent);
    color: var(--white);
    transform: rotate(180deg);
}

.sd-faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease;
    padding: 0 28px;
}

.sd-faq-item.open .sd-faq-a {
    max-height: 300px;
    padding: 0 28px 24px;
}

.sd-faq-a p {
    font-size: 0.95rem;
    color: var(--gray-600);
    line-height: 1.75;
    margin: 0;
}

/* =============================================
   6. FINAL CTA SECTION — Premium Full-Width
   ============================================= */
.sd-final-cta {
    padding: clamp(80px, 12vw, 120px) 0;
    background: var(--white);
}

.sd-cta-box {
    background: linear-gradient(135deg, #0a1628 0%, #0d2550 50%, #13223e 100%);
    border-radius: 32px;
    padding: clamp(48px, 8vw, 80px) clamp(32px, 6vw, 80px);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.sd-cta-box::before {
    content: '';
    position: absolute;
    top: -50%; left: 50%;
    transform: translateX(-50%);
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(30,107,255,0.15), transparent 65%);
    pointer-events: none;
}

.sd-cta-box::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(30,107,255,0.4), transparent);
}

.sd-cta-box > * {
    position: relative;
    z-index: 1;
}

.sd-cta-box h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    color: var(--white);
    margin-bottom: 16px;
    font-weight: 800;
}

.sd-cta-box > p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.55);
    max-width: 560px;
    margin: 0 auto 36px;
    line-height: 1.7;
}

.sd-cta-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.sd-cta-phone {
    display: flex;
    align-items: center;
    gap: 12px;
    justify-content: center;
    margin-bottom: 36px;
}

.sd-cta-phone-icon {
    width: 40px; height: 40px;
    background: rgba(30,107,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-light);
    font-size: 0.95rem;
}

.sd-cta-phone-text {
    text-align: left;
}

.sd-cta-phone-text span:first-child {
    display: block;
    font-size: 0.78rem;
    color: rgba(255,255,255,0.4);
}

.sd-cta-phone-text span:last-child {
    display: block;
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--white);
}

.sd-cta-trust {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.sd-cta-trust-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    color: rgba(255,255,255,0.7);
}

.sd-cta-trust-item i {
    color: var(--gold);
    font-size: 0.9rem;
}

/* =============================================
   7. RELATED SERVICES — Premium Cards
   ============================================= */
.sd-related {
    padding: clamp(60px, 10vw, 100px) 0 clamp(80px, 12vw, 140px);
    background: var(--off-white);
}

.sd-related-header {
    text-align: center;
    margin-bottom: clamp(40px, 5vw, 64px);
}

.sd-related-header h2 {
    font-size: clamp(1.6rem, 4vw, 2.6rem);
    color: var(--primary);
}

.sd-related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    max-width: 1000px;
    margin: 0 auto;
}

.sd-related-card {
    background: var(--white);
    border: 1px solid var(--gray-100);
    border-radius: 22px;
    padding: 36px 28px;
    text-align: center;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: inherit;
    position: relative;
    overflow: hidden;
}

.sd-related-card::after {
    content: '';
    position: absolute;
    bottom: 0; left: 0; right: 0;
    height: 3px;
    background: var(--grad-accent);
    transform: scaleX(0);
    transition: transform 0.35s ease;
}

.sd-related-card:hover {
    border-color: rgba(30,107,255,0.15);
    box-shadow: 0 24px 48px -12px rgba(10,22,40,0.12);
    transform: translateY(-8px);
}

.sd-related-card:hover::after {
    transform: scaleX(1);
}

.sd-related-icon {
    width: 64px;
    height: 64px;
    background: var(--accent-glow);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    transition: var(--transition);
}

.sd-related-card:hover .sd-related-icon {
    background: var(--grad-accent);
    color: var(--white);
    transform: scale(1.08);
}

.sd-related-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
}

.sd-related-card p {
    font-size: 0.85rem;
    color: var(--gray-600);
    line-height: 1.6;
    margin-bottom: 20px;
    flex: 1;
}

.sd-related-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--accent);
    transition: var(--transition);
}

.sd-related-link i {
    font-size: 0.75rem;
    transition: transform 0.3s ease;
}

.sd-related-card:hover .sd-related-link i {
    transform: translateX(4px);
}


/* =============================================
   RESPONSIVE — Tablet
   ============================================= */
@media (max-width: 1024px) {
    .sd-hero-inner {
        grid-template-columns: 1fr;
        text-align: left;
    }

    .sd-hero-visual {
        justify-content: flex-start;
    }

    .sd-hero-visual-card {
        max-width: 100%;
    }

    .sd-overview-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .sd-feature-cards {
        grid-template-columns: 1fr 1fr;
    }

    .sd-process-track {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px 0;
    }

    .sd-process-track::before {
        display: none;
    }

    .sd-related-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* =============================================
   RESPONSIVE — Mobile
   ============================================= */
@media (max-width: 768px) {
    .sd-hero {
        padding: 100px 0 70px;
    }

    .sd-hero h1 {
        font-size: clamp(1.8rem, 7vw, 2.4rem);
    }

    .sd-hero p {
        font-size: 0.95rem;
    }

    .sd-hero-visual-card {
        padding: 28px 24px;
    }

    .sd-visual-stats {
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }

    .sd-visual-stat {
        padding: 18px 14px;
    }

    .sd-visual-stat .stat-val {
        font-size: 1.3rem;
    }

    .sd-feature-cards {
        grid-template-columns: 1fr;
    }

    .sd-process-track {
        grid-template-columns: 1fr 1fr;
        gap: 36px 20px;
    }

    .sd-process-num {
        width: 60px;
        height: 60px;
        font-size: 1.2rem;
    }

    .sd-tech-badge {
        padding: 11px 22px;
        font-size: 0.88rem;
    }

    .sd-faq-q {
        padding: 18px 22px;
        font-size: 0.98rem;
    }

    .sd-faq-a {
        padding: 0 22px;
    }

    .sd-faq-item.open .sd-faq-a {
        padding: 0 22px 20px;
    }

    .sd-cta-box {
        border-radius: 24px;
        padding: 40px 24px;
    }

    .sd-related-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    .sd-hero {
        padding: 90px 0 60px;
    }

    .sd-hero-badge {
        font-size: 0.78rem;
        padding: 8px 14px;
    }

    .sd-hero-actions {
        flex-direction: column;
        align-items: flex-start;
    }

    .sd-hero-actions .btn {
        width: 100%;
        justify-content: center;
    }

    .sd-process-track {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .sd-process-step p {
        max-width: 100%;
    }

    .sd-tech-grid {
        gap: 10px;
    }

    .sd-tech-badge {
        padding: 10px 18px;
        font-size: 0.82rem;
    }

    .sd-cta-trust {
        flex-direction: column;
        gap: 10px;
    }
}