/* ===== HERO ===== */
.pd-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 8rem 4rem 4rem;
    background: var(--tst-dark);
}

.pd-hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 70% 20%, rgba(63, 174, 154, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 30% 80%, rgba(31, 111, 99, 0.1) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(0, 212, 170, 0.03) 0%, transparent 70%);
}

.pd-hero-particles {
    position: absolute;
    inset: 0;
    overflow: hidden;
}

.pd-hero-particles .particle {
    position: absolute;
    border-radius: 50%;
    background: rgba(63, 174, 154, 0.3);
    animation: float-particle linear infinite;
    pointer-events: none;
}

@keyframes float-particle {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) scale(0); opacity: 0; }
}

.pd-hero-content {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.pd-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 3rem;
    font-size: 0.95rem;
    color: rgba(255,255,255,0.5);
}

.pd-breadcrumb a {
    color: var(--tst-green-light);
    text-decoration: none;
    transition: color 0.3s;
}

.pd-breadcrumb a:hover { color: var(--tst-accent); }
.pd-breadcrumb i { font-size: 0.7rem; }

.pd-hero-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 5rem;
    align-items: center;
}

.pd-hero-image-wrapper {
    position: relative;
}

.pd-hero-image {
    position: relative;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0,0,0,0.5);
    border: 2px solid rgba(63,174,154,0.2);
    background: var(--tst-dark);
}

.pd-hero-image-mobile {
    aspect-ratio: 9 / 20;
    max-height: 600px;
}

.pd-hero-image-web {
    aspect-ratio: 16 / 9;
}

.pd-hero-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.pd-hero-image:hover img { transform: scale(1.08); }

.pd-hero-image::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(14,46,42,0.4) 0%, transparent 50%);
}

.pd-hero-image-glow {
    position: absolute;
    inset: -20px;
    border-radius: 40px;
    background: radial-gradient(circle at 50% 50%, rgba(63,174,154,0.15), transparent 70%);
    filter: blur(30px);
    z-index: -1;
    animation: glow-pulse 4s ease-in-out infinite;
}

@keyframes glow-pulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.pd-tech-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 1.4rem;
    background: rgba(63,174,154,0.12);
    color: var(--color, var(--tst-green-light));
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(63,174,154,0.15);
    backdrop-filter: blur(10px);
}

.pd-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    color: var(--tst-white);
    margin-bottom: 0.5rem;
    line-height: 1.05;
    letter-spacing: -1px;
}

.pd-subtitle {
    font-size: 1.4rem;
    color: var(--tst-green-light);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.pd-divider {
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
    margin-bottom: 2rem;
}

.pd-desc {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.8);
    line-height: 1.9;
    margin-bottom: 2.5rem;
}

.pd-actions {
    display: flex;
    gap: 1.2rem;
    flex-wrap: wrap;
}

.pd-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: rgba(255,255,255,0.4);
    font-size: 0.8rem;
    font-weight: 500;
    animation: bounce-down 2s ease-in-out infinite;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.pd-scroll-indicator i { font-size: 1rem; }

@keyframes bounce-down {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

/* ===== STATS ===== */
.pd-stats {
    padding: 4rem;
    background: linear-gradient(135deg, rgba(31,111,99,0.3), rgba(14,46,42,0.5));
    position: relative;
    overflow: hidden;
}

.pd-stats::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--tst-green-light), transparent);
}

.pd-stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pd-stat-card {
    text-align: center;
    padding: 2rem 1rem;
    position: relative;
}

.pd-stat-card:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -1rem;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 50%;
    background: rgba(63,174,154,0.2);
}

.pd-stat-value {
    font-family: 'Montserrat', sans-serif;
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    line-height: 1;
}

.pd-stat-label {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.6);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== FEATURES ===== */
.pd-features {
    padding: 8rem 4rem;
    background: var(--tst-green);
}

.pd-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pd-feature-card {
    position: relative;
    padding: 2rem 2rem 2rem 4.5rem;
    background: var(--card-bg);
    border-radius: 16px;
    border: 1px solid var(--card-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

.pd-feature-card:hover {
    transform: translateY(-5px) translateX(5px);
    border-color: var(--tst-green-light);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.pd-feature-number {
    position: absolute;
    top: 1rem;
    right: 1rem;
    font-family: 'Montserrat', sans-serif;
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(63,174,154,0.1);
    line-height: 1;
}

.pd-feature-icon {
    position: absolute;
    left: 1.5rem;
    top: 2rem;
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pd-feature-icon i {
    font-size: 1rem;
    color: white;
}

.pd-feature-card h3 {
    font-size: 1rem;
    color: var(--tst-white);
    font-weight: 500;
    line-height: 1.5;
}

/* ===== TECH STACK ===== */
.pd-tech {
    padding: 8rem 4rem;
    background: var(--tst-dark);
}

.pd-tech-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.pd-tech-card {
    padding: 1.5rem 2rem;
    background: rgba(255,255,255,0.03);
    border-radius: 16px;
    border: 1px solid rgba(63,174,154,0.1);
    transition: all 0.3s ease;
}

.pd-tech-card:hover {
    background: rgba(255,255,255,0.06);
    border-color: rgba(63,174,154,0.25);
    transform: translateX(10px);
}

.pd-tech-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.pd-tech-name {
    font-weight: 600;
    color: var(--tst-white);
    font-size: 1.05rem;
}

.pd-tech-percent {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    color: var(--tst-green-light);
    font-size: 0.95rem;
}

.pd-tech-bar {
    height: 8px;
    background: rgba(255,255,255,0.08);
    border-radius: 4px;
    overflow: hidden;
}

.pd-tech-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.pd-tech-fill::after {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    width: 20px;
    height: 100%;
    background: rgba(255,255,255,0.3);
    filter: blur(4px);
}

/* ===== BENEFITS ===== */
.pd-benefits {
    padding: 8rem 4rem;
    background: var(--tst-green);
}

.pd-benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.pd-benefit-card {
    position: relative;
    text-align: center;
    padding: 3.5rem 2.5rem;
    background: rgba(14,46,42,0.4);
    border-radius: 20px;
    border: 1px solid rgba(63,174,154,0.15);
    transition: all 0.4s ease;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.pd-benefit-card:hover {
    transform: translateY(-10px);
    border-color: var(--tst-green-light);
    box-shadow: 0 25px 60px rgba(0,0,0,0.4);
}

.pd-benefit-shine {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(63,174,154,0.06) 0%, transparent 60%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
}

.pd-benefit-card:hover .pd-benefit-shine {
    opacity: 1;
}

.pd-benefit-icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    box-shadow: 0 10px 30px rgba(31,111,99,0.4);
    transition: all 0.4s ease;
}

.pd-benefit-card:hover .pd-benefit-icon {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 15px 40px rgba(31,111,99,0.6);
}

.pd-benefit-icon i {
    font-size: 2rem;
    color: white;
}

.pd-benefit-card p {
    color: rgba(255,255,255,0.85);
    font-size: 1.15rem;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ===== FEATURE GRAPHIC ===== */
.pd-feature-graphic {
    padding: 8rem 4rem 4rem;
    background: var(--tst-dark);
    position: relative;
}

.pd-feature-graphic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(63,174,154,0.3), transparent);
}

.pd-feature-graphic-wrapper {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 24px;
    overflow: hidden;
    border: 2px solid rgba(63,174,154,0.2);
    box-shadow:
        0 30px 80px rgba(0,0,0,0.5),
        0 0 60px rgba(63,174,154,0.1);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    cursor: zoom-in;
}

.pd-feature-graphic-wrapper::after {
    content: '\f00e';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    width: 45px;
    height: 45px;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.1rem;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(255,255,255,0.1);
}

.pd-feature-graphic-wrapper:hover::after {
    opacity: 1;
    transform: scale(1);
}

.pd-feature-graphic-wrapper:hover {
    border-color: rgba(63,174,154,0.4);
    box-shadow:
        0 40px 100px rgba(0,0,0,0.6),
        0 0 80px rgba(63,174,154,0.15),
        inset 0 0 60px rgba(63,174,154,0.03);
    transform: translateY(-5px);
}

.pd-feature-graphic-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.pd-feature-graphic-wrapper:hover .pd-feature-graphic-img {
    transform: scale(1.03);
}

.pd-feature-graphic-wrapper .pd-lightbox-trigger {
    position: absolute;
    inset: 0;
    z-index: 2;
    cursor: zoom-in;
}

/* ===== GALLERY ===== */
.pd-gallery {
    padding: 6rem 4rem 8rem;
    background: var(--tst-dark);
    position: relative;
}

.pd-gallery::before {
    content: '';
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(63,174,154,0.2), transparent);
}

.pd-gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.pd-gallery-item {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid rgba(63,174,154,0.1);
    background: rgba(14,46,42,0.3);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.pd-gallery-item::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 22px;
    background: linear-gradient(135deg, rgba(63,174,154,0.3), transparent, rgba(63,174,154,0.1));
    opacity: 0;
    transition: opacity 0.5s ease;
    z-index: -1;
}

.pd-gallery-item:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: rgba(63,174,154,0.4);
    box-shadow:
        0 30px 80px rgba(0,0,0,0.5),
        0 0 50px rgba(63,174,154,0.1);
}

.pd-gallery-item:hover::before {
    opacity: 1;
}

/* Phone frame */
.pd-phone-frame {
    position: relative;
    aspect-ratio: 9 / 19.5;
    overflow: hidden;
    background: #0a0a0a;
    border-radius: 18px;
    margin: 3px;
    box-shadow: inset 0 0 20px rgba(0,0,0,0.5);
}

.pd-phone-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.pd-gallery-item:hover .pd-phone-frame img {
    transform: scale(1.08);
}

.pd-phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 25px;
    background: #0a0a0a;
    border-radius: 0 0 16px 16px;
    z-index: 2;
    box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.pd-phone-notch::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    background: rgba(255,255,255,0.08);
    border-radius: 50%;
    box-shadow: 0 0 4px rgba(255,255,255,0.05);
}

.pd-gallery-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(14,46,42,0.9) 0%,
        rgba(14,46,42,0.4) 40%,
        rgba(14,46,42,0.1) 100%
    );
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.pd-gallery-item:hover .pd-gallery-overlay {
    opacity: 1;
}

.pd-gallery-overlay i {
    font-size: 2.4rem;
    color: white;
    transform: scale(0.5) translateY(15px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 4px 20px rgba(0,0,0,0.5));
    opacity: 0;
}

.pd-gallery-overlay span {
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    transform: translateY(15px);
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
    background: rgba(63,174,154,0.2);
    padding: 0.4rem 1.2rem;
    border-radius: 20px;
    border: 1px solid rgba(63,174,154,0.2);
}

.pd-gallery-item:hover .pd-gallery-overlay i {
    transform: scale(1) translateY(0);
    opacity: 1;
    transition-delay: 0.1s;
}

.pd-gallery-item:hover .pd-gallery-overlay span {
    transform: translateY(0);
    opacity: 1;
    transition-delay: 0.15s;
}

/* Gallery item glow on hover */
.pd-gallery-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 18px;
    background: radial-gradient(circle at 50% 80%, rgba(63,174,154,0.15), transparent 70%);
    opacity: 0;
    transition: opacity 0.5s ease;
    pointer-events: none;
    z-index: 1;
}

.pd-gallery-item:hover::after {
    opacity: 1;
}

/* ===== LIGHTBOX ===== */
.pd-lightbox {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.pd-lightbox.active {
    opacity: 1;
    pointer-events: auto;
}

.pd-lightbox-bg {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
}

.pd-lightbox-content {
    position: relative;
    z-index: 2;
    max-width: 420px;
    width: 90%;
    animation: lightbox-enter 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes lightbox-enter {
    from {
        opacity: 0;
        transform: scale(0.85) translateY(40px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.pd-lightbox-phone-frame {
    position: relative;
    aspect-ratio: 9 / 19.5;
    overflow: hidden;
    background: #0a0a0a;
    border-radius: 28px;
    border: 3px solid rgba(255,255,255,0.1);
    box-shadow:
        0 40px 120px rgba(0,0,0,0.8),
        0 0 80px rgba(63,174,154,0.1);
    transition: box-shadow 0.4s ease;
}

.pd-lightbox-phone-frame:hover {
    box-shadow:
        0 40px 120px rgba(0,0,0,0.8),
        0 0 100px rgba(63,174,154,0.15);
}

.pd-lightbox-phone-frame img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    cursor: zoom-in;
    transition: none;
    user-select: none;
    -webkit-user-drag: none;
}

.pd-lightbox-phone-frame img.zoomed {
    cursor: grab;
}

.pd-lightbox-phone-frame img.zoomed:active {
    cursor: grabbing;
}

.pd-lightbox-phone-frame img.zooming {
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.pd-lightbox-phone-notch {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 150px;
    height: 30px;
    background: #0a0a0a;
    border-radius: 0 0 18px 18px;
    z-index: 3;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

.pd-lightbox-phone-notch::after {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 10px;
    height: 10px;
    background: rgba(255,255,255,0.06);
    border-radius: 50%;
    box-shadow: 0 0 6px rgba(255,255,255,0.03);
}

/* Bottom bar with counter and zoom hint */
.pd-lightbox-bottom-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.pd-lightbox-counter {
    color: rgba(255,255,255,0.5);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 2px;
    font-variant-numeric: tabular-nums;
}

.pd-lightbox-zoom-hint {
    color: rgba(255,255,255,0.3);
    font-size: 0.75rem;
    letter-spacing: 1px;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.pd-lightbox-zoom-hint i {
    font-size: 0.8rem;
}

/* Dots navigation */
.pd-lightbox-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.2rem;
}

.pd-lightbox-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    padding: 0;
}

.pd-lightbox-dot.active {
    background: var(--tst-green-light);
    width: 24px;
    border-radius: 3px;
    box-shadow: 0 0 15px rgba(63,174,154,0.3);
}

.pd-lightbox-dot:hover {
    background: rgba(255,255,255,0.3);
}

.pd-lightbox-close {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 10;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.15);
    background: rgba(0,0,0,0.5);
    color: white;
    font-size: 1.3rem;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.pd-lightbox-close:hover {
    background: rgba(255,69,58,0.2);
    border-color: rgba(255,69,58,0.4);
    transform: rotate(90deg) scale(1.1);
    box-shadow: 0 0 30px rgba(255,69,58,0.15);
}

.pd-lightbox-nav {
    position: fixed;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    border: 2px solid rgba(255,255,255,0.1);
    background: rgba(0,0,0,0.5);
    color: white;
    font-size: 1.4rem;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.pd-lightbox-nav:hover {
    background: rgba(63,174,154,0.2);
    border-color: var(--tst-green-light);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 4px 30px rgba(63,174,154,0.15);
}

.pd-lightbox-nav:active {
    transform: translateY(-50%) scale(0.95);
}

.pd-lightbox-nav.prev { left: 1.5rem; }
.pd-lightbox-nav.next { right: 1.5rem; }

/* Lightbox slide transition */
.pd-lightbox-phone-frame img.slide-left {
    animation: slide-left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.pd-lightbox-phone-frame img.slide-right {
    animation: slide-right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slide-left {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slide-right {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== CTA ===== */
.pd-cta {
    padding: 8rem 4rem;
    background: var(--tst-dark);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.pd-cta-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 50%, rgba(63,174,154,0.08) 0%, transparent 50%),
        radial-gradient(circle at 70% 50%, rgba(31,111,99,0.06) 0%, transparent 50%);
}

.pd-cta-content {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.pd-cta-content h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    font-weight: 900;
    color: var(--tst-white);
    margin-bottom: 1rem;
}

.pd-cta-content p {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.8);
    margin-bottom: 2.5rem;
}

.pd-cta-buttons {
    display: flex;
    gap: 1.2rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .pd-hero-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    .pd-title { font-size: 3rem; }
    .pd-hero-image { max-width: 500px; margin: 0 auto; }
    .pd-stats-grid { grid-template-columns: repeat(2, 1fr); }
    .pd-gallery-grid { grid-template-columns: repeat(2, 1fr); }
    .pd-stat-card:not(:last-child)::after { display: none; }
}

@media (max-width: 768px) {
    .pd-hero,
    .pd-features,
    .pd-tech,
    .pd-benefits,
    .pd-gallery,
    .pd-feature-graphic,
    .pd-cta,
    .pd-stats {
        padding: 6rem 1.5rem 3rem;
    }
    .pd-title { font-size: 2.2rem; }
    .pd-subtitle { font-size: 1.1rem; }
    .pd-actions { flex-direction: column; }
    .pd-stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .pd-stat-value { font-size: 2rem; }
    .pd-features-grid { grid-template-columns: 1fr; }
    .pd-gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .pd-cta-content h2 { font-size: 2.2rem; }
    .pd-cta-buttons { flex-direction: column; align-items: center; }

    .pd-lightbox-nav {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    .pd-lightbox-nav.prev { left: 0.5rem; }
    .pd-lightbox-nav.next { right: 0.5rem; }
    .pd-lightbox-close {
        width: 40px;
        height: 40px;
        font-size: 1rem;
        top: 0.8rem;
        right: 0.8rem;
    }
    .pd-lightbox-content { max-width: 320px; }
    .pd-lightbox-phone-frame { border-radius: 20px; }
}

@media (max-width: 480px) {
    .pd-gallery-grid { grid-template-columns: 1fr; max-width: 320px; margin: 0 auto; }
    .pd-feature-graphic-wrapper { border-radius: 16px; }
}