/* =========================================================================
   PORTFOLIO PAGE — EvoSphere Premium Styles
   File: assets/css/portfolio.css
   ========================================================================= */

/* ── Reveal Animations ──────────────────────────────────────────────── */
.reveal-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal-up.visible,
.reveal-left.visible,
.reveal-right.visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* ── Gradient Text ──────────────────────────────────────────────────── */
.pf-gradient-text {
    background: linear-gradient(135deg, #2563eb 0%, #7c3aed 50%, #ef4444 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* =========================================================================
   PORTFOLIO HERO
   ========================================================================= */
.portfolio-hero {
    position: relative;
    padding: 140px 0 110px;
    overflow: hidden;
    background: var(--color-bg-dark, #0b0b12);
}

.portfolio-hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.pf-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.18;
}
.pf-orb-1 {
    width: 700px; height: 700px;
    background: radial-gradient(circle, #2563eb 0%, transparent 70%);
    top: -250px; left: -200px;
    animation: pfOrbFloat 9s ease-in-out infinite alternate;
}
.pf-orb-2 {
    width: 500px; height: 500px;
    background: radial-gradient(circle, #7c3aed 0%, transparent 70%);
    bottom: -200px; right: -100px;
    animation: pfOrbFloat 11s ease-in-out infinite alternate-reverse;
}
.pf-orb-3 {
    width: 300px; height: 300px;
    background: radial-gradient(circle, #ef4444 0%, transparent 70%);
    top: 40%; right: 20%;
    opacity: 0.08;
    animation: pfOrbFloat 7s ease-in-out infinite alternate;
}

@keyframes pfOrbFloat {
    from { transform: translateY(0px) scale(1); }
    to   { transform: translateY(30px) scale(1.06); }
}

.pf-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37,99,235,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,0.04) 1px, transparent 1px);
    background-size: 60px 60px;
}

.portfolio-hero-container {
    position: relative;
    z-index: 2;
    max-width: 860px;
    text-align: center;
}

.portfolio-hero-title {
    font-size: clamp(38px, 5.5vw, 72px);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.08;
    margin-bottom: 24px;
    color: var(--color-text-pure, #ffffff);
}

.portfolio-hero-desc {
    font-size: clamp(15px, 1.8vw, 18px);
    color: var(--color-text-silver, #a1a1aa);
    max-width: 620px;
    margin: 0 auto 48px;
    line-height: 1.75;
}

.portfolio-hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 72px;
}

/* Hero Stats */
.pf-stats-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    flex-wrap: wrap;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--color-border-glass, rgba(255,255,255,0.08));
    border-radius: 20px;
    padding: 32px 16px;
    backdrop-filter: blur(16px);
}

.pf-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 0 40px;
}
.pf-stat-num {
    font-size: clamp(26px, 3vw, 40px);
    font-weight: 800;
    color: var(--color-text-pure, #ffffff);
    letter-spacing: -0.02em;
    line-height: 1;
}
.pf-stat-plus {
    font-size: 0.6em;
    color: var(--color-primary, #2563eb);
    vertical-align: super;
}
.pf-stat-label {
    font-size: 12px;
    color: var(--color-text-silver, #a1a1aa);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 500;
}
.pf-stat-divider {
    width: 1px;
    height: 50px;
    background: var(--color-border-glass, rgba(255,255,255,0.08));
}

/* =========================================================================
   PORTFOLIO SHOWCASE SECTION
   ========================================================================= */
.portfolio-showcase {
    padding: 80px 0 60px;
}

.pf-section-header {
    text-align: center;
    margin-bottom: 80px;
}

/* ── Individual Project Row ──────────────────────────────────────────── */
.pf-project {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    margin-bottom: 100px;
    position: relative;
}

.pf-project:last-child {
    margin-bottom: 0;
}

/* Reversed layout */
.pf-project.pf-reverse {
    direction: rtl;
}
.pf-project.pf-reverse > * {
    direction: ltr;
}

/* Subtle separator between projects */
.pf-project + .pf-project::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 50px;
    background: linear-gradient(to bottom, transparent, rgba(37,99,235,0.3), transparent);
}

/* ── Image Side ──────────────────────────────────────────────────────── */
.pf-image-wrap {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    background: var(--color-bg-card, #14141b);
    border: 1px solid var(--color-border-glass, rgba(255,255,255,0.08));
    box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 4px 20px rgba(0,0,0,0.3);
    transition: transform 0.5s cubic-bezier(0.16,1,0.3,1),
                box-shadow 0.5s,
                border-color 0.3s;
    cursor: pointer;
}

.pf-image-wrap:hover {
    transform: translateY(-10px) scale(1.01);
    box-shadow: 0 40px 100px rgba(0,0,0,0.5), 0 0 0 1px rgba(37,99,235,0.2);
    border-color: rgba(37,99,235,0.25);
}

.pf-image-wrap img {
    width: 100%;
    height: 340px;
    object-fit: cover;
    object-position: top center;
    display: block;
    transition: transform 0.7s cubic-bezier(0.16,1,0.3,1);
}

.pf-image-wrap:hover img {
    transform: scale(1.04);
}

/* Image overlay with gradient */
.pf-img-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        rgba(11,11,18,0.7) 0%,
        transparent 50%
    );
    transition: opacity 0.3s;
}
.pf-image-wrap:hover .pf-img-overlay {
    opacity: 0.5;
}

/* Number badge on image */
.pf-project-number {
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 11px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: rgba(255,255,255,0.5);
    background: rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
    padding: 5px 12px;
    border-radius: 100px;
    backdrop-filter: blur(8px);
    z-index: 2;
}

/* Visit overlay on hover */
.pf-img-visit {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(37,99,235,0.08);
    opacity: 0;
    transition: opacity 0.35s;
    z-index: 3;
}
.pf-image-wrap:hover .pf-img-visit {
    opacity: 1;
}
.pf-img-visit-icon {
    width: 60px; height: 60px;
    background: rgba(255,255,255,0.12);
    border: 2px solid rgba(255,255,255,0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    backdrop-filter: blur(8px);
    transform: scale(0.85);
    transition: transform 0.3s cubic-bezier(0.16,1,0.3,1);
}
.pf-image-wrap:hover .pf-img-visit-icon {
    transform: scale(1);
}

/* ── Content Side ────────────────────────────────────────────────────── */
.pf-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pf-industry-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-primary, #2563eb);
    background: rgba(37,99,235,0.1);
    border: 1px solid rgba(37,99,235,0.2);
    padding: 6px 14px;
    border-radius: 100px;
    width: fit-content;
}

.pf-industry-badge .badge-dot {
    width: 6px; height: 6px;
    border-radius: 50%;
    background: var(--color-primary, #2563eb);
    animation: pulseDot 2s ease-in-out infinite;
}

@keyframes pulseDot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.pf-project-title {
    font-size: clamp(26px, 2.8vw, 38px);
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.15;
    color: var(--color-text-pure, #ffffff);
    margin: 0;
}

.pf-project-desc {
    font-size: 15px;
    color: var(--color-text-silver, #a1a1aa);
    line-height: 1.75;
    margin: 0;
}

/* Features list */
.pf-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px 16px;
    padding: 20px;
    background: rgba(255,255,255,0.025);
    border: 1px solid var(--color-border-glass, rgba(255,255,255,0.08));
    border-radius: 14px;
}

.pf-feature-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--color-text-silver, #a1a1aa);
    font-weight: 500;
}

.pf-feature-item .feat-check {
    width: 18px; height: 18px;
    background: rgba(16,185,129,0.15);
    border: 1px solid rgba(16,185,129,0.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #10b981;
    flex-shrink: 0;
}

/* CTA Button */
.pf-visit-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, #2563eb, #7c3aed);
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.01em;
    border-radius: 12px;
    text-decoration: none;
    width: fit-content;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s cubic-bezier(0.16,1,0.3,1),
                box-shadow 0.3s,
                opacity 0.3s;
    box-shadow: 0 4px 20px rgba(37,99,235,0.3);
}

.pf-visit-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.pf-visit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(37,99,235,0.45);
    opacity: 0.95;
}
.pf-visit-btn:hover::before { opacity: 1; }

.pf-visit-btn svg {
    transition: transform 0.3s;
}
.pf-visit-btn:hover svg {
    transform: translate(2px, -2px);
}

/* Decorative side accent line */
.pf-project::after {
    content: '';
    position: absolute;
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 60px;
    background: linear-gradient(to bottom, transparent, #2563eb, transparent);
    border-radius: 3px;
    opacity: 0;
    transition: opacity 0.5s;
}
.pf-project.visible::after {
    opacity: 1;
}
.pf-project.pf-reverse::after {
    left: auto;
    right: -40px;
    background: linear-gradient(to bottom, transparent, #7c3aed, transparent);
}

/* =========================================================================
   PORTFOLIO CTA SECTION
   ========================================================================= */
.portfolio-cta-section {
    padding: 60px 0 120px;
}

.portfolio-cta-card {
    position: relative;
    background: var(--color-bg-card, #14141b);
    border: 1px solid var(--color-border-glass, rgba(255,255,255,0.08));
    border-radius: 28px;
    padding: 90px 48px;
    text-align: center;
    overflow: hidden;
}

/* Animated background glow */
.pf-cta-glow {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(37,99,235,0.1) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 50%, rgba(124,58,237,0.1) 0%, transparent 60%);
    pointer-events: none;
}

.pf-cta-glow-bottom {
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 50% 100%, rgba(37,99,235,0.15) 0%, transparent 70%);
    pointer-events: none;
}

/* Top gradient border */
.portfolio-cta-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, #2563eb, #7c3aed, #ef4444, transparent);
}

.portfolio-cta-card h2 {
    font-size: clamp(30px, 4vw, 52px);
    font-weight: 800;
    letter-spacing: -0.025em;
    margin: 16px 0 20px;
    color: var(--color-text-pure, #ffffff);
    position: relative;
    z-index: 1;
}

.portfolio-cta-card p {
    font-size: 17px;
    color: var(--color-text-silver, #a1a1aa);
    margin-bottom: 44px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

.pf-cta-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 1100px) {
    .pf-project {
        gap: 48px;
    }
}

@media (max-width: 900px) {
    .pf-project,
    .pf-project.pf-reverse {
        grid-template-columns: 1fr;
        direction: ltr;
        gap: 36px;
    }

    .pf-project.pf-reverse > * {
        direction: ltr;
    }

    .pf-image-wrap img {
        height: 280px;
    }

    .pf-project::after,
    .pf-project.pf-reverse::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .portfolio-hero {
        padding: 100px 0 70px;
    }

    .pf-stats-row {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0;
        padding: 20px 8px;
    }
    .pf-stat {
        padding: 16px 20px;
    }
    .pf-stat-divider {
        display: none;
    }

    .portfolio-showcase {
        padding: 60px 0 40px;
    }

    .pf-project {
        margin-bottom: 70px;
    }

    .pf-features {
        grid-template-columns: 1fr;
    }

    .portfolio-cta-card {
        padding: 60px 28px;
    }

    .pf-project + .pf-project::before {
        display: none;
    }
}

@media (max-width: 480px) {
    .pf-stat-divider { display: none; }
    .pf-stat-num { font-size: 26px; }
    .portfolio-hero-cta {
        flex-direction: column;
        align-items: center;
    }
    .pf-cta-actions {
        flex-direction: column;
        align-items: center;
    }
    .pf-image-wrap img {
        height: 220px;
    }
}