/* ============================================================
   PORTFOLIO PAGE — Social AI
   ============================================================ */

/* ---------- HERO ---------- */
.pf-hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: var(--space-5xl);
    padding-bottom: var(--space-3xl);
    overflow: hidden;
}

.pf-hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.pf-hero__tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--purple);
    margin-bottom: var(--space-lg);
}

.pf-hero__title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    color: var(--text-dark);
    margin-bottom: var(--space-lg);
}

.pf-hero__subtitle {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-body);
    max-width: 500px;
}

.pf-hero__divider {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(138, 43, 226, 0.3), rgba(255, 20, 147, 0.3), transparent);
}

/* Floating Phones */
.pf-hero__phones {
    position: relative;
    height: 420px;
    perspective: 1000px;
}

.pf-phone {
    position: absolute;
    border-radius: var(--radius-lg);
    background: rgba(255, 255, 255, 0.6);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    transition: transform 0.1s linear;
}

.pf-phone--1 {
    width: 160px;
    height: 290px;
    top: 10%;
    left: 5%;
    transform: rotateY(-8deg) rotateX(3deg);
    z-index: 2;
}

.pf-phone--2 {
    width: 180px;
    height: 320px;
    top: 5%;
    left: 35%;
    transform: rotateY(0deg) rotateX(0deg);
    z-index: 3;
    box-shadow: var(--shadow-lg), 0 0 40px rgba(138, 43, 226, 0.15);
}

.pf-phone--3 {
    width: 150px;
    height: 270px;
    top: 15%;
    right: 5%;
    transform: rotateY(10deg) rotateX(-3deg);
    z-index: 1;
}

.pf-phone__screen {
    width: 100%;
    height: 100%;
    border-radius: inherit;
    overflow: hidden;
}

.pf-phone__placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

.pf-phone__placeholder svg {
    width: 32px;
    height: 32px;
    opacity: 0.3;
}

/* Real phone images */
.pf-phone__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
    z-index: 1;
}

.pf-phone__label {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    background: rgba(255, 255, 255, 0.55);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    white-space: nowrap;
}

.pf-phone__label svg {
    width: 20px;
    height: 20px;
    opacity: 0.7;
    color: var(--text-dark);
}

.pf-phone__label span {
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-dark);
}

.pf-phone--1 {
    background: linear-gradient(135deg, rgba(255, 20, 147, 0.08), rgba(255, 255, 255, 0.6));
}

.pf-phone--2 {
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.08), rgba(255, 255, 255, 0.6));
}

.pf-phone--3 {
    background: linear-gradient(135deg, rgba(0, 220, 255, 0.08), rgba(255, 255, 255, 0.6));
}


/* ---------- FILTER PILLS ---------- */
.pf-filters {
    padding: var(--space-3xl) 0 var(--space-xl);
}

.pf-filters__bar {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    justify-content: center;
}

.pf-pill {
    padding: 10px 24px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-light);
    background: rgba(255, 255, 255, 0.6);
    -webkit-backdrop-filter: blur(8px);
    backdrop-filter: blur(8px);
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-body);
    cursor: pointer;
    transition: all var(--duration-normal) var(--ease-out);
}

.pf-pill:hover {
    border-color: var(--purple);
    color: var(--purple);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.pf-pill--active {
    background: var(--gradient);
    color: #fff;
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.pf-pill--active:hover {
    color: #fff;
    transform: translateY(-2px);
}


/* ---------- MASONRY GALLERY ---------- */
.pf-gallery {
    padding: var(--space-xl) 0 var(--space-4xl);
}

.pf-masonry {
    columns: 3;
    column-gap: var(--space-lg);
}

.pf-card {
    break-inside: avoid;
    margin-bottom: var(--space-lg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(255, 255, 255, 0.55);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: var(--shadow-md);
    transition: transform var(--duration-normal) var(--ease-out), box-shadow var(--duration-normal) var(--ease-out);
}

.pf-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

/* Card hiding for filter */
.pf-card--hidden {
    display: none;
}

/* Media area */
.pf-card__media {
    position: relative;
    overflow: hidden;
}

.pf-card--vertical .pf-card__media {
    aspect-ratio: 9 / 16;
}

.pf-card--square .pf-card__media {
    aspect-ratio: 1 / 1;
}

/* Placeholder images */
.pf-card__placeholder-img {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--duration-slow) var(--ease-out);
}

.pf-card:hover .pf-card__placeholder-img {
    transform: scale(1.05);
}

.pf-card__placeholder-img svg {
    width: 48px;
    height: 48px;
    opacity: 0.25;
    color: #fff;
}

.pf-card__placeholder-img--pink {
    background: linear-gradient(135deg, #ff6b9d, #c44569);
}

.pf-card__placeholder-img--purple {
    background: linear-gradient(135deg, #a855f7, #7c3aed);
}

.pf-card__placeholder-img--cyan {
    background: linear-gradient(135deg, #22d3ee, #0891b2);
}

.pf-card__placeholder-img--orange {
    background: linear-gradient(135deg, #fb923c, #ea580c);
}

.pf-card__placeholder-img--gray {
    background: linear-gradient(135deg, #94a3b8, #64748b);
}

/* Real images */
.pf-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out);
}

.pf-card:hover .pf-card__img {
    transform: scale(1.05);
}

/* Hover overlay */
.pf-card__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.7) 100%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    opacity: 0;
    transition: opacity var(--duration-normal) var(--ease-out);
}

.pf-card:hover .pf-card__overlay {
    opacity: 1;
}

/* Play button */
.pf-card__play {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    animation: play-pulse 2s ease-in-out infinite;
}

.pf-card__play svg {
    width: 24px;
    height: 24px;
}

.pf-card__play--heart {
    animation: heart-pulse 1.5s ease-in-out infinite;
}

@keyframes play-pulse {

    0%,
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.3);
    }

    50% {
        transform: scale(1.08);
        box-shadow: 0 0 20px 8px rgba(255, 255, 255, 0.1);
    }
}

@keyframes heart-pulse {

    0%,
    100% {
        transform: scale(1);
    }

    15% {
        transform: scale(1.15);
    }

    30% {
        transform: scale(1);
    }

    45% {
        transform: scale(1.1);
    }
}

/* Neon metrics */
.pf-card__metrics {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
}

.pf-metric {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: #fff;
    padding: 4px 12px;
    border-radius: var(--radius-pill);
    text-shadow: 0 0 12px rgba(255, 255, 255, 0.5);
}

.pf-metric--views {
    text-shadow: 0 0 16px rgba(0, 220, 255, 0.7);
}

.pf-metric--likes {
    text-shadow: 0 0 16px rgba(255, 20, 147, 0.7);
}

.pf-metric--comments {
    text-shadow: 0 0 16px rgba(138, 43, 226, 0.7);
}

/* Card info */
.pf-card__info {
    padding: var(--space-md) var(--space-lg);
}

.pf-card__info h3 {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

.pf-card__tag {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
}


/* ---------- CASE STUDY ---------- */
.pf-case {
    padding: var(--space-5xl) 0;
}

.pf-case__header {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.pf-case__tag {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--purple);
    margin-bottom: var(--space-md);
}

.pf-case__title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: var(--space-md);
}

.pf-case__desc {
    font-size: 1.05rem;
    color: var(--text-body);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Split layout */
.pf-case__split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.pf-case__side {
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
}

.pf-case__side--before {
    background: rgba(200, 200, 210, 0.15);
    -webkit-backdrop-filter: blur(12px);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(200, 200, 210, 0.3);
}

.pf-case__side--after {
    background: rgba(255, 255, 255, 0.55);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: var(--shadow-md);
}

.pf-case__badge {
    display: inline-block;
    padding: 4px 16px;
    border-radius: var(--radius-pill);
    font-family: var(--font-display);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: var(--space-lg);
}

.pf-case__badge--before {
    background: rgba(150, 150, 160, 0.2);
    color: #888;
}

.pf-case__badge--after {
    background: var(--gradient);
    color: #fff;
}

/* Mockup stats */
.pf-case__mockup {
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.pf-case__mockup--gray {
    background: rgba(180, 180, 190, 0.12);
    border: 1px solid rgba(180, 180, 190, 0.2);
}

.pf-case__mockup--colorful {
    background: linear-gradient(135deg, rgba(138, 43, 226, 0.06), rgba(255, 20, 147, 0.06));
    border: 1px solid rgba(138, 43, 226, 0.15);
    box-shadow: 0 0 30px rgba(138, 43, 226, 0.08);
}

.pf-case__stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    font-size: 0.9rem;
}

.pf-case__stat-row span {
    color: var(--text-muted);
}

.pf-case__stat-row strong {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-dark);
}

.pf-case__mockup--gray .pf-case__stat-row strong {
    color: #999;
}

.pf-case__graph {
    margin-top: var(--space-md);
}

.pf-case__graph svg {
    width: 100%;
    height: 60px;
}

.pf-case__side h3 {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: var(--space-xs);
}

.pf-case__side--before h3 {
    color: #999;
}

.pf-case__side p {
    font-size: 0.9rem;
    color: var(--text-body);
    line-height: 1.5;
}

.pf-case__side--before p {
    color: var(--text-muted);
}

.pf-case__cta {
    text-align: center;
}


/* ---------- CTA FINAL ---------- */
.pf-cta {
    padding: var(--space-5xl) 0;
    background: var(--gradient);
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    text-align: center;
}

.pf-cta__content h2 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: #fff;
    margin-bottom: var(--space-md);
}

.pf-cta__content .gradient-text {
    background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.7));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pf-cta__content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.85);
    max-width: 500px;
    margin: 0 auto var(--space-xl);
    line-height: 1.6;
}

.pf-cta .btn-primary {
    background: #fff;
    color: var(--purple);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.pf-cta .btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}


/* ============================================================
   RESPONSIVE — Portfolio Page
   ============================================================ */

/* Tablet */
@media (max-width: 1024px) {
    .pf-hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .pf-hero__subtitle {
        margin: 0 auto;
    }

    .pf-hero__phones {
        max-width: 400px;
        height: 350px;
        margin: 0 auto;
    }

    .pf-masonry {
        columns: 2;
    }

    .pf-case__split {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto var(--space-2xl);
    }
}

/* Mobile */
@media (max-width: 640px) {
    .pf-hero__title {
        font-size: 2.2rem;
    }

    .pf-hero__phones {
        max-width: 320px;
        height: 300px;
    }

    .pf-phone--1 {
        width: 120px;
        height: 220px;
    }

    .pf-phone--2 {
        width: 140px;
        height: 250px;
    }

    .pf-phone--3 {
        width: 110px;
        height: 200px;
    }

    .pf-masonry {
        columns: 1;
        max-width: 400px;
        margin: 0 auto;
    }

    .pf-filters__bar {
        gap: 6px;
    }

    .pf-pill {
        padding: 8px 16px;
        font-size: 0.8rem;
        min-height: 44px;
        display: inline-flex;
        align-items: center;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .pf-hero {
        min-height: 70vh;
    }

    .pf-hero__phones {
        max-width: 280px;
        height: 260px;
    }

    .pf-phone--1 {
        width: 100px;
        height: 180px;
    }

    .pf-phone--2 {
        width: 120px;
        height: 210px;
    }

    .pf-phone--3 {
        width: 90px;
        height: 170px;
    }

    .pf-filters__bar {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding-bottom: var(--space-sm);
    }

    .pf-filters__bar::-webkit-scrollbar {
        display: none;
    }

    .pf-pill {
        flex-shrink: 0;
    }
}