/* ================================================================
   DEMOS PAGE
   ================================================================ */

.demos-section-inner {
    max-width: 1100px;
    width: 100%;
    margin: 0 auto;
}

/* Active nav link */
.menu-item--active {
    color: var(--accent) !important;
}

/* ── Hero ─────────────────────────────────────────────────────── */
.demos-hero {
    padding: 140px 8% 90px;
    display: flex;
    justify-content: center;
    text-align: center;
    background: linear-gradient(
        170deg,
        rgba(29, 205, 159, 0.06) 0%,
        transparent 55%
    );
}

.demos-hero-inner {
    max-width: 740px;
    width: 100%;
}

.demos-eyebrow {
    display: inline-flex;
    align-items: center;
    background: rgba(29, 205, 159, 0.1);
    color: var(--accent-dark);
    font-size: 0.76rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 0.45rem 1.1rem;
    border-radius: 50px;
    border: 1px solid rgba(29, 205, 159, 0.25);
    margin-bottom: 1.5rem;
}

.demos-hero-title {
    font-size: clamp(2.4rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.4rem;
    letter-spacing: -0.02em;
}

.demos-hero-sub {
    font-size: 1.05rem;
    color: var(--text-muted);
    line-height: 1.8;
    max-width: 560px;
    margin: 0 auto 3rem;
}

/* Stats strip */
.demos-stats {
    display: inline-flex;
    align-items: center;
    gap: 2.5rem;
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 1.5rem 2.8rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.06);
}

.demos-stat-num {
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 0.2rem;
}

.demos-stat-label {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

.demos-stat-divider {
    width: 1px;
    height: 44px;
    background: var(--border);
    flex-shrink: 0;
}

/* ── Grid section ─────────────────────────────────────────────── */
.demos-grid-section {
    padding: 80px 8% 90px;
    display: flex;
    justify-content: center;
    background: var(--bg-primary);
    border-top: 1px solid var(--border);
}

/* ── Filter bar ───────────────────────────────────────────────── */
.demos-filters {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 0.6rem 1.3rem;
    border-radius: 50px;
    border: 1.5px solid var(--border);
    background: #ffffff;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.3s ease,
                background  0.3s ease,
                color        0.3s ease,
                box-shadow   0.3s ease;
    font-family: inherit;
}

.filter-btn i {
    font-size: 0.8rem;
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--accent-dark);
}

.filter-btn.active {
    background: var(--accent-gradient);
    border-color: transparent;
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(29, 205, 159, 0.3);
}

/* ── Cards grid ───────────────────────────────────────────────── */
.demos-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.8rem;
}

/* ── Grid 3D perspective ──────────────────────────────────────── */
.demos-grid { perspective: 1500px; }

/* ── Single card ──────────────────────────────────────────────── */
.demo-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform   0.38s cubic-bezier(0.4, 0, 0.2, 1),
                border-color 0.38s ease,
                box-shadow   0.38s ease,
                opacity      0.32s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.demo-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: 0 24px 56px rgba(29, 205, 159, 0.18);
}

/* Cursor-tracking spotlight on the card surface */
.demo-card::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(
        340px circle at var(--mx, 50%) var(--my, 50%),
        rgba(29, 205, 159, 0.20) 0%,
        rgba(29, 205, 159, 0.06) 32%,
        transparent 65%
    );
    opacity: 0;
    transition: opacity 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 6;
    border-radius: inherit;
    mix-blend-mode: multiply;
}
.demo-card.is-tilting::after { opacity: 1; }

/* Inner layers float in 3D space when the card is tilting */
.demo-card-preview,
.demo-card-body {
    transform-style: preserve-3d;
    position: relative;
}
.demo-card.is-tilting .demo-card-logo {
    transform: scale(1.08) translateZ(45px);
}
.demo-card.is-tilting .demo-card-cat-badge {
    transform: translateZ(32px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.28);
}
.demo-card-body h3 {
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    will-change: transform;
}
.demo-card.is-tilting .demo-card-body h3 {
    transform: translateZ(22px);
}
.demo-card-cat-badge {
    transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1),
                box-shadow 0.4s ease;
}

/* Filter hide/show */
.demo-card.card-hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
    position: absolute;
    visibility: hidden;
}

/* ── Preview area ─────────────────────────────────────────────── */
.demo-card-preview {
    position: relative;
    height: 210px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    overflow: hidden;
}

/* subtle grid pattern overlay */
.demo-card-preview::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
    background-size: 28px 28px;
    pointer-events: none;
}

.demo-card-logo {
    max-width: 200px;
    max-height: 120px;
    object-fit: contain;
    position: relative;
    z-index: 1;
    filter: drop-shadow(0 8px 24px rgba(0,0,0,0.4));
    transition: transform 0.38s cubic-bezier(0.4, 0, 0.2, 1);
}

.demo-card:hover .demo-card-logo {
    transform: scale(1.06);
}

.demo-card-cat-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(8px);
    color: #ffffff;
    font-size: 0.68rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.3rem 0.75rem;
    border-radius: 50px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 2;
}

/* ── Card body ────────────────────────────────────────────────── */
.demo-card-body {
    padding: 1.8rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.demo-card-body h3 {
    font-size: 1.18rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-dark);
}

.demo-card-body p {
    color: var(--text-muted);
    font-size: 0.87rem;
    line-height: 1.75;
    margin-bottom: 1.2rem;
    flex: 1;
}

/* Tech tags */
.demo-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-bottom: 1.4rem;
}

.demo-card-tags span {
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.25rem 0.7rem;
    border-radius: 50px;
    background: rgba(29, 205, 159, 0.08);
    color: var(--accent-dark);
    border: 1px solid rgba(29, 205, 159, 0.2);
}

/* Footer row */
.demo-card-footer {
    border-top: 1px solid var(--border);
    padding-top: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: flex-end;
}

.demo-launch-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--accent-dark);
    text-decoration: none;
    padding: 0.55rem 1.2rem;
    border-radius: 50px;
    border: 1.5px solid rgba(29, 205, 159, 0.35);
    background: rgba(29, 205, 159, 0.06);
    transition: background   0.3s ease,
                border-color 0.3s ease,
                color        0.3s ease,
                box-shadow   0.3s ease,
                gap          0.3s ease;
}

.demo-launch-btn:hover {
    background: var(--accent-gradient);
    border-color: transparent;
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(29, 205, 159, 0.35);
    gap: 12px;
}

/* ── Empty state ──────────────────────────────────────────────── */
.demos-empty {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 4rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    font-weight: 600;
}

.demos-empty i {
    font-size: 2.5rem;
    color: var(--border);
}

.demos-empty--visible {
    display: flex;
}

/* ── CTA ──────────────────────────────────────────────────────── */
.demos-cta {
    padding: 100px 8%;
    background: #ffffff;
    border-top: 1px solid var(--border);
}

.demos-cta-inner {
    max-width: 560px;
    margin: 0 auto;
    text-align: center;
}

.demos-cta-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #ffffff;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.6rem;
    box-shadow: 0 10px 30px rgba(29, 205, 159, 0.38);
    animation: ctaPulse 2.6s ease-in-out infinite;
}

@keyframes ctaPulse {
    0%, 100% { box-shadow: 0 10px 30px rgba(29, 205, 159, 0.38); transform: scale(1); }
    50%       { box-shadow: 0 10px 50px rgba(29, 205, 159, 0.58); transform: scale(1.06); }
}

.demos-cta-inner h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    font-weight: 800;
    margin-bottom: 0.8rem;
    letter-spacing: -0.02em;
}

.demos-cta-inner p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.75;
    margin-bottom: 2rem;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 840px) {
    .demos-grid {
        grid-template-columns: 1fr;
    }

    .demo-card-preview {
        height: 180px;
    }
}

@media (max-width: 600px) {
    .demos-hero {
        padding: 110px 6% 70px;
    }

    .demos-grid-section {
        padding: 60px 6% 70px;
    }

    .demos-stats {
        flex-direction: column;
        gap: 1.4rem;
        padding: 1.5rem 2rem;
    }

    .demos-stat-divider {
        width: 60px;
        height: 1px;
    }

    .demos-filters {
        gap: 0.5rem;
    }

    .filter-btn {
        font-size: 0.8rem;
        padding: 0.52rem 1rem;
    }
}

/* ── Visual polish additions ──────────────────────────────────── */

/* Stats strip interactive */
.demos-stat {
    cursor: default;
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.demos-stat:hover { transform: translateY(-3px); }
.demos-stat-num {
    font-variant-numeric: tabular-nums;
    transition: text-shadow 0.3s ease;
}
.demos-stat:hover .demos-stat-num {
    text-shadow: 0 0 20px rgba(29, 205, 159, 0.45);
}

/* Filter bar sticky on scroll */
.demos-filters-wrap {
    position: sticky;
    top: calc(var(--nav-height, 76px) + 12px);
    z-index: 10;
    background: linear-gradient(to bottom, var(--bg-primary) 80%, transparent);
    padding-bottom: 8px;
    margin-bottom: 0;
}

/* Subtle card entrance (JS adds .card-visible) */
.demo-card {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
                transform 0.55s cubic-bezier(0.22, 1, 0.36, 1),
                border-color 0.38s ease,
                box-shadow 0.38s ease;
}
.demo-card.card-visible {
    opacity: 1;
    transform: translateY(0);
}
.demo-card.card-hidden {
    opacity: 0;
    pointer-events: none;
    transform: scale(0.95);
    position: absolute;
    visibility: hidden;
}

/* Stagger the visible cards */
.demo-card.card-visible:nth-child(1) { transition-delay: 0.00s; }
.demo-card.card-visible:nth-child(2) { transition-delay: 0.07s; }
.demo-card.card-visible:nth-child(3) { transition-delay: 0.14s; }
.demo-card.card-visible:nth-child(4) { transition-delay: 0.21s; }
.demo-card.card-visible:nth-child(5) { transition-delay: 0.28s; }
.demo-card.card-visible:nth-child(6) { transition-delay: 0.35s; }

/* Launch button icon nudge on hover */
.demo-launch-btn i {
    transition: transform 0.25s ease;
}
.demo-launch-btn:hover i { transform: translateX(3px); }