/* ===============================================
   CSS Blend Modes Page Styles
   =============================================== */

/* Introduction Demo */
.blend-intro-demo {
    display: flex;
    justify-content: center;
    padding: 3rem 2rem;
}

.blend-base {
    width: 300px;
    height: 200px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.blend-overlay {
    font-size: 2.5rem;
    font-weight: 900;
    color: white;
    mix-blend-mode: difference;
}

/* Blend Modes Gallery */
.blend-modes-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.blend-mode-card {
    text-align: center;
}

.blend-preview {
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
    margin-bottom: 0.75rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.blend-layer {
    position: absolute;
    inset: 0;
    background: linear-gradient(-45deg, #f093fb 0%, #f5576c 100%);
}

.blend-preview[data-mode="normal"] .blend-layer {
    mix-blend-mode: normal;
}

.blend-preview[data-mode="multiply"] .blend-layer {
    mix-blend-mode: multiply;
}

.blend-preview[data-mode="screen"] .blend-layer {
    mix-blend-mode: screen;
}

.blend-preview[data-mode="overlay"] .blend-layer {
    mix-blend-mode: overlay;
}

.blend-preview[data-mode="darken"] .blend-layer {
    mix-blend-mode: darken;
}

.blend-preview[data-mode="lighten"] .blend-layer {
    mix-blend-mode: lighten;
}

.blend-preview[data-mode="color-dodge"] .blend-layer {
    mix-blend-mode: color-dodge;
}

.blend-preview[data-mode="color-burn"] .blend-layer {
    mix-blend-mode: color-burn;
}

.blend-preview[data-mode="hard-light"] .blend-layer {
    mix-blend-mode: hard-light;
}

.blend-preview[data-mode="soft-light"] .blend-layer {
    mix-blend-mode: soft-light;
}

.blend-preview[data-mode="difference"] .blend-layer {
    mix-blend-mode: difference;
}

.blend-preview[data-mode="exclusion"] .blend-layer {
    mix-blend-mode: exclusion;
}

.blend-preview[data-mode="hue"] .blend-layer {
    mix-blend-mode: hue;
}

.blend-preview[data-mode="saturation"] .blend-layer {
    mix-blend-mode: saturation;
}

.blend-preview[data-mode="color"] .blend-layer {
    mix-blend-mode: color;
}

.blend-preview[data-mode="luminosity"] .blend-layer {
    mix-blend-mode: luminosity;
}

.blend-name {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text, #1e293b);
    font-family: var(--font-mono);
}

/* Text Blend Demo */
.text-blend-demo {
    display: flex;
    justify-content: center;
    padding: 2rem;
}

.text-blend-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 3rem 4rem;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.blend-text {
    margin: 0;
    font-size: 5rem;
    font-weight: 900;
    color: white;
    mix-blend-mode: difference;
    text-align: center;
}

/* Duotone Demo */
.duotone-demo {
    display: flex;
    justify-content: center;
    padding: 2rem;
}

.duotone-image {
    width: 100%;
    max-width: 500px;
    aspect-ratio: 16 / 9;
    background:
        linear-gradient(45deg, rgba(0, 0, 0, 0.2), rgba(0, 0, 0, 0.2)),
        repeating-linear-gradient(45deg, #667eea, #667eea 10px, #764ba2 10px, #764ba2 20px);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.duotone-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(45deg, #f093fb 0%, #f5576c 100%);
    mix-blend-mode: multiply;
}

/* Logo Adaptation Demo */
.logo-adapt-demo {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    padding: 2rem;
}

.logo-section {
    padding: 3rem 2rem;
    border-radius: 16px;
    text-align: center;
}

.logo-light {
    background: #f8fafc;
}

.logo-dark {
    background: #0f172a;
}

.logo-adapt {
    font-size: 3rem;
    font-weight: 900;
    color: #888;
    mix-blend-mode: difference;
    margin-bottom: 1rem;
}

.logo-section p {
    margin: 0;
    opacity: 0.6;
}

.logo-light p {
    color: #1e293b;
}

.logo-dark p {
    color: #f1f5f9;
}

/* Background Blend Demo */
.bg-blend-demo {
    display: flex;
    justify-content: center;
    padding: 2rem;
}

.gradient-image-blend {
    width: 100%;
    max-width: 500px;
    padding: 4rem 2rem;
    background:
        linear-gradient(135deg, rgba(102, 126, 234, 0.9), rgba(118, 75, 162, 0.9)),
        repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255,255,255,.05) 10px, rgba(255,255,255,.05) 20px);
    background-blend-mode: overlay;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    text-align: center;
    color: white;
}

.gradient-image-blend h3 {
    margin: 0 0 1rem 0;
    font-size: 2rem;
    color: white;
}

.gradient-image-blend p {
    margin: 0;
    opacity: 0.9;
}

/* Multiple Gradient Demo */
.multi-gradient-demo {
    height: 300px;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 0, 150, 0.5), transparent 50%),
        radial-gradient(circle at 80% 50%, rgba(0, 200, 255, 0.5), transparent 50%),
        linear-gradient(45deg, #667eea, #764ba2);
    background-blend-mode: screen;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

/* Texture Demo */
.texture-demo {
    display: flex;
    justify-content: center;
    padding: 2rem;
}

.textured-card {
    width: 100%;
    max-width: 400px;
    padding: 3rem 2rem;
    background:
        repeating-linear-gradient(45deg, transparent, transparent 2px, rgba(0,0,0,.05) 2px, rgba(0,0,0,.05) 4px),
        linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-blend-mode: multiply;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    text-align: center;
    color: white;
}

.textured-card h3 {
    margin: 0 0 1rem 0;
    font-size: 1.75rem;
    color: white;
}

.textured-card p {
    margin: 0;
    opacity: 0.9;
}

/* Dark Mode Text Demo */
.dark-mode-text-demo {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    padding: 2rem;
}

.theme-box {
    padding: 3rem 2rem;
    border-radius: 16px;
    text-align: center;
}

.theme-light-box {
    background: #f8fafc;
}

.theme-dark-box {
    background: #0f172a;
}

.adaptive-text {
    margin: 0 0 0.5rem 0;
    font-size: 2rem;
    font-weight: 700;
    color: #888;
    mix-blend-mode: difference;
}

.theme-box p {
    margin: 0;
    font-size: 0.875rem;
    opacity: 0.6;
}

.theme-light-box p {
    color: #1e293b;
}

.theme-dark-box p {
    color: #f1f5f9;
}

/* Colorful Shadow Demo */
.colorful-shadow-demo {
    display: flex;
    justify-content: center;
    padding: 4rem 2rem;
    background: var(--color-surface, #f8fafc);
    border-radius: 16px;
}

.dark .colorful-shadow-demo {
    background: var(--color-surface, #1e293b);
}

.shadow-card {
    padding: 3rem 2rem;
    background: white;
    border-radius: 16px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.dark .shadow-card {
    background: #0f172a;
    color: #f1f5f9;
}

.shadow-card::before {
    content: '';
    position: absolute;
    inset: -20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: inherit;
    filter: blur(30px);
    opacity: 0.6;
    z-index: -1;
    mix-blend-mode: multiply;
}

.shadow-card h4 {
    margin: 0 0 0.75rem 0;
    font-size: 1.5rem;
}

.shadow-card p {
    margin: 0;
    opacity: 0.75;
}

/* Tip Box */
.tip-box {
    margin-top: 2rem;
    padding: 2rem;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border-left: 4px solid #2563eb;
    border-radius: 8px;
}

.dark .tip-box {
    background: linear-gradient(135deg, #1e3a5f 0%, #1e293b 100%);
    border-left-color: #60a5fa;
}

.tip-box h4 {
    margin: 0 0 1rem 0;
    color: var(--color-text, #1e293b);
    font-size: 1.125rem;
}

.tip-box ul {
    margin: 0.5rem 0;
    padding-left: 1.5rem;
}

.tip-box li {
    margin: 0.5rem 0;
    color: var(--color-text, #1e293b);
    line-height: 1.6;
}

.tip-box p {
    margin: 1rem 0 0 0;
    color: var(--color-text, #1e293b);
    line-height: 1.6;
}

.tip-box p:first-of-type {
    margin-top: 0;
}

/* Related Links Cards */
.related-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.related-card {
    padding: 2rem;
    background: var(--color-surface, #f8fafc);
    border: 2px solid var(--color-border, #e2e8f0);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    border-color: #2563eb;
}

.dark .related-card {
    background: var(--color-surface, #1e293b);
    border-color: var(--color-border, #334155);
}

.dark .related-card:hover {
    border-color: #60a5fa;
}

.related-card h3 {
    margin: 0 0 0.75rem 0;
    color: var(--color-text, #1e293b);
    font-size: 1.25rem;
}

.related-card p {
    margin: 0;
    color: var(--color-text-secondary, #64748b);
    line-height: 1.6;
}

/* Responsive Design */
@media (max-width: 768px) {
    .blend-modes-gallery {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
        gap: 1rem;
    }

    .blend-text {
        font-size: 3rem;
    }

    .text-blend-bg {
        padding: 2rem 3rem;
    }

    .logo-adapt-demo {
        grid-template-columns: 1fr;
    }

    .logo-adapt {
        font-size: 2.5rem;
    }

    .related-links {
        grid-template-columns: 1fr;
    }

    .colorful-shadow-demo {
        padding: 3rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .blend-text {
        font-size: 2rem;
    }

    .text-blend-bg {
        padding: 1.5rem 2rem;
    }

    .logo-adapt {
        font-size: 2rem;
    }
}