/* =============================================================
   PATENTS MODAL — Premium Glassmorphism Style
============================================================= */

/* Trigger button on stat label */
.patents-trigger {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--brand-primary);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: color 0.3s ease, letter-spacing 0.3s ease;
    text-decoration: none;
}
.patents-trigger:hover {
    color: var(--brand-secondary);
    letter-spacing: 0.2em;
}

/* ---- Overlay ---- */
.patents-modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(5, 5, 7, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;

    /* Hidden by default */
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.patents-modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

/* ---- Modal Box ---- */
.patents-modal-box {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
    max-width: 720px;
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.08);
    
    /* Slide-up entrance */
    transform: translateY(30px) scale(0.97);
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);

    /* Thin scrollbar */
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 94, 0, 0.2) transparent;
}
.patents-modal-overlay.open .patents-modal-box {
    transform: translateY(0) scale(1);
}

/* ---- Header ---- */
.patents-modal-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.patents-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--brand-primary);
    display: block;
    margin-bottom: 0.4rem;
}

.patents-modal-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 400;
    line-height: 0.9;
    letter-spacing: 0.04em;
    color: var(--text-main);
    text-transform: uppercase;
}

.patents-close-btn {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    color: var(--text-muted);
    cursor: pointer;
    flex-shrink: 0;
    transition: background 0.3s, color 0.3s, border-color 0.3s;
    line-height: 1;
}
.patents-close-btn:hover {
    background: rgba(255, 94, 0, 0.15);
    border-color: rgba(255, 94, 0, 0.4);
    color: var(--brand-primary);
}

/* ---- Subtitle ---- */
.patents-modal-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    line-height: 1.6;
}

/* ---- Patent List ---- */
.patents-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 0;
    padding: 0;
}

.patents-item {
    display: grid;
    grid-template-columns: 40px 1fr auto;
    gap: 1.5rem;
    align-items: center;
    padding: 1.5rem 1rem;
    margin: 0 -1rem;
    border-radius: 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: background 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.patents-item:last-child {
    border-bottom: none;
}
.patents-item:hover {
    background: rgba(255, 94, 0, 0.04);
}

.patent-num {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    color: var(--brand-primary);
    align-self: flex-start;
    padding-top: 0.18rem;
}

.patent-info {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.patent-title {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-main);
    line-height: 1.5;
}

.patent-field {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.patent-link-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--text-muted);
    text-decoration: none;
    flex-shrink: 0;
    transition: background 0.3s, color 0.3s, border-color 0.3s, transform 0.3s;
}
.patent-link-btn:hover {
    background: rgba(255, 94, 0, 0.15);
    border-color: rgba(255, 94, 0, 0.4);
    color: var(--brand-primary);
    transform: scale(1.1);
}

/* ---- Footer ---- */
.patents-modal-footer {
    padding-top: 1.5rem;
    margin-top: 0.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.patents-footer-note {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: rgba(255, 94, 0, 0.5);
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
    .patents-modal-box {
        padding: 1.5rem;
    }
    .patents-item {
        grid-template-columns: 30px 1fr auto;
        gap: 1rem;
    }
}