/* ========== SUB-PAGE SHARED STYLES ========== */

.page-hero {
    padding: 160px 0 80px;
    text-align: center;
    background: linear-gradient(180deg, var(--color-bg-alt) 0%, var(--color-bg) 100%);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.particle-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.page-hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.04), transparent 70%);
    pointer-events: none;
}

.page-hero .tag { margin-bottom: 18px; }

.page-hero .container {
    position: relative;
    z-index: 1;
}

.page-hero .title-lg {
    font-size: clamp(2rem, 5vw, 3.2rem);
    margin-bottom: 16px;
}

.page-hero .subtitle {
    max-width: 600px;
}

/* ========== FEATURE SECTIONS ========== */
.feature-section {
    padding: 80px 0;
}

.feature-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.feature-row.reverse { direction: rtl; }
.feature-row.reverse > * { direction: ltr; }

.feature-demo {
    display: flex;
    justify-content: center;
}

.feature-demo .mp {
    width: 300px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15), 0 0 40px rgba(79,70,229,0.04);
    perspective: 1000px;
    transform-style: preserve-3d;
}

.feature-demo .mp .mp-screen {
    min-height: 400px;
}

/* Layered color accents for feature sections */
.feature-section:nth-child(odd) {
    background: linear-gradient(135deg, rgba(79,70,229,0.02) 0%, transparent 60%);
}
.feature-section:nth-child(even) {
    background: linear-gradient(225deg, rgba(139,92,246,0.02) 0%, transparent 60%);
}
.feature-section:nth-child(odd) .feature-text::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -30px;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(79,70,229,0.04), transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}
.feature-text {
    position: relative;
}

.settings-item {
    background: rgba(0,0,0,0.02);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 7px 8px;
    font-size: 0.5rem;
    color: var(--color-text-mid);
    transition: var(--transition);
}

.settings-item:hover {
    background: rgba(79,70,229,0.04);
    border-color: rgba(79,70,229,0.12);
}

.feature-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-accent-light);
    background: rgba(79, 70, 229, 0.06);
    border: 1px solid rgba(79, 70, 229, 0.12);
    padding: 4px 14px;
    border-radius: 100px;
    margin-bottom: 18px;
    letter-spacing: 0.08em;
}

.feature-text h2 {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: -0.02em;
}

.feature-text p {
    font-size: 0.92rem;
    color: var(--color-text-mid);
    line-height: 1.8;
    margin-bottom: 20px;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.feature-list li {
    font-size: 0.85rem;
    color: var(--color-text-mid);
    padding-left: 22px;
    position: relative;
}

.feature-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gradient-main);
}

/* ========== TECHNOLOGY PAGE ========== */
.tech-section {
    padding: 80px 0;
}

.tech-detail-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.tech-detail-grid-2 {
    grid-template-columns: repeat(2, 1fr);
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
}

.tech-detail-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 32px;
    transition: var(--transition);
}

.tech-detail-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.tech-detail-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.tech-detail-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.tech-detail-card p {
    font-size: 0.85rem;
    color: var(--color-text-mid);
    line-height: 1.7;
}

.tech-model-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-top: 40px;
}

.model-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.model-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-3px);
}

.model-card, .value-card, .contact-card { transform-style: preserve-3d; }

.model-card .model-name {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.model-card .model-desc {
    font-size: 0.75rem;
    color: var(--color-text-dim);
}

.model-card .model-icon {
    color: var(--color-accent-light);
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
}

/* ========== ABOUT PAGE ========== */
.about-content {
    max-width: 720px;
    margin: 0 auto;
}

.about-content p {
    font-size: 1rem;
    color: var(--color-text-mid);
    line-height: 1.9;
    margin-bottom: 20px;
}

.about-values {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 48px;
}

.value-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: 32px;
    text-align: center;
    transition: var(--transition);
}

.value-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-4px);
}

.value-icon {
    color: var(--color-accent-light);
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
}

.value-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.value-card p {
    font-size: 0.82rem;
    color: var(--color-text-mid);
    line-height: 1.7;
}

/* ========== CONTACT PAGE ========== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 900px;
    margin: 0 auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-mid);
    margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    color: var(--color-text);
    font-family: var(--font);
    font-size: 0.88rem;
    transition: var(--transition);
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.08);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

.contact-info-cards {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--color-border-hover);
}

.contact-card h4 {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.contact-card p {
    font-size: 0.82rem;
    color: var(--color-text-dim);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .tech-detail-grid { grid-template-columns: repeat(2, 1fr); }
    .tech-model-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 768px) {
    .page-hero { padding: 120px 0 60px; }
    .page-hero::before { width: 300px; height: 300px; }
    .feature-row,
    .feature-row.reverse { grid-template-columns: 1fr; direction: ltr; gap: 32px; }
    .feature-demo { order: -1; }
    .feature-demo .mp { width: 180px; }
    .feature-section { padding: 60px 0; }
    .tech-section { padding: 60px 0; }
    .tech-detail-grid { grid-template-columns: 1fr; }
    .tech-detail-grid-2 { max-width: 100%; }
    .tech-model-grid { grid-template-columns: repeat(2, 1fr); }
    .about-values { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 480px) {
    .page-hero { padding: 100px 0 50px; }
    .page-hero .title-lg { font-size: clamp(1.6rem, 6vw, 2.4rem); }
    .page-hero .subtitle { font-size: 0.88rem; }
    .feature-demo .mp { width: 160px; }
    .feature-demo .mp .mp-screen { min-height: 200px; }
    .feature-text h2 { font-size: clamp(1.2rem, 5vw, 1.5rem); }
    .feature-text p { font-size: 0.85rem; }
    .feature-list li { font-size: 0.8rem; }
    .feature-section { padding: 48px 0; }
    .tech-section { padding: 48px 0; }
    .tech-detail-card { padding: 24px; }
    .tech-detail-card h3 { font-size: 1rem; }
    .tech-detail-card p { font-size: 0.82rem; }
    .tech-model-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .model-card { padding: 18px; }
    .model-card .model-name { font-size: 0.85rem; }
    .model-card .model-desc { font-size: 0.7rem; }
    .about-content p { font-size: 0.92rem; }
    .value-card { padding: 24px; }
    .value-card h3 { font-size: 0.95rem; }
    .value-card p { font-size: 0.78rem; }
    .contact-card { padding: 18px; }
    .contact-grid { gap: 24px; }
    .form-group input,
    .form-group textarea { padding: 10px 14px; font-size: 0.85rem; }
}

@media (max-width: 360px) {
    .tech-model-grid { grid-template-columns: 1fr; }
    .feature-demo .mp { width: 140px; }
    .feature-demo .mp .mp-screen { min-height: 180px; }
}