/* Advanced Gradient Effects CSS */

/* Gradient Variables */
:root {
    /* Base Gradients */
    --gradient-blue-indigo: linear-gradient(135deg, var(--gradient-blue), var(--gradient-indigo));
    --gradient-indigo-purple: linear-gradient(135deg, var(--gradient-indigo), var(--gradient-purple));
    --gradient-purple-pink: linear-gradient(135deg, var(--gradient-purple), var(--gradient-pink));
    --gradient-blue-cyan: linear-gradient(135deg, var(--gradient-blue), var(--gradient-cyan));
    --gradient-teal-cyan: linear-gradient(135deg, var(--gradient-teal), var(--gradient-cyan));
    
    /* Multi-color Gradients */
    --gradient-cosmic: linear-gradient(90deg, 
        var(--gradient-blue), 
        var(--gradient-indigo), 
        var(--gradient-purple), 
        var(--gradient-indigo), 
        var(--gradient-blue));
    
    --gradient-twilight: linear-gradient(135deg, 
        var(--gradient-indigo) 0%, 
        var(--gradient-purple) 50%, 
        var(--gradient-pink) 100%);
    
    --gradient-aurora: linear-gradient(135deg, 
        var(--gradient-blue) 0%, 
        var(--gradient-teal) 30%, 
        var(--gradient-indigo) 70%, 
        var(--gradient-blue) 100%);
    
    /* Radial Gradients */
    --gradient-radial-blue: radial-gradient(circle, 
        rgba(59, 130, 246, 0.2) 0%, 
        rgba(59, 130, 246, 0) 70%);
    
    --gradient-radial-indigo: radial-gradient(circle, 
        rgba(79, 70, 229, 0.2) 0%, 
        rgba(79, 70, 229, 0) 70%);
    
    --gradient-radial-purple: radial-gradient(circle, 
        rgba(139, 92, 246, 0.2) 0%, 
        rgba(139, 92, 246, 0) 70%);
    
    /* Conic Gradients */
    --gradient-conic: conic-gradient(
        var(--gradient-blue),
        var(--gradient-indigo),
        var(--gradient-purple),
        var(--gradient-pink),
        var(--gradient-blue)
    );
    
    /* Grid Gradients */
    --gradient-grid: repeating-linear-gradient(
        0deg,
        var(--grid-color),
        var(--grid-color) 1px,
        transparent 1px,
        transparent 70px
    ),
    repeating-linear-gradient(
        90deg,
        var(--grid-color),
        var(--grid-color) 1px,
        transparent 1px,
        transparent 70px
    );
}

/* Gradient Text */
.gradient-text {
    background-size: 300% auto;
    background-image: linear-gradient(90deg, 
        var(--gradient-blue), 
        var(--gradient-indigo), 
        var(--gradient-purple), 
        var(--gradient-indigo), 
        var(--gradient-blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientFlow 8s ease infinite;
}

.gradient-text-static {
    background-image: var(--gradient-blue-indigo);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.gradient-text-twilight {
    background-image: var(--gradient-twilight);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.gradient-text-northern-lights {
    background-image: var(--gradient-aurora);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* Gradient Borders */
.gradient-border {
    position: relative;
    border: 1px solid transparent;
    background-clip: padding-box;
}

.gradient-border::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: -1px;
    border-radius: inherit;
    background: var(--gradient-blue-indigo);
    z-index: -1;
    opacity: 0.7;
}

.gradient-border-animated {
    position: relative;
    border: 1px solid transparent;
    background-clip: padding-box;
}

.gradient-border-animated::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    margin: -1px;
    border-radius: inherit;
    background: var(--gradient-cosmic);
    background-size: 300% auto;
    animation: gradientFlow 8s ease infinite;
    z-index: -1;
    opacity: 0.6;
}

/* Gradient Backgrounds */
.gradient-bg-blue-indigo {
    background: var(--gradient-blue-indigo);
}

.gradient-bg-indigo-purple {
    background: var(--gradient-indigo-purple);
}

.gradient-bg-twilight {
    background: var(--gradient-twilight);
}

.gradient-bg-aurora {
    background: var(--gradient-aurora);
}

.gradient-bg-animated {
    background: var(--gradient-cosmic);
    background-size: 300% auto;
    animation: gradientFlow 8s ease infinite;
}

/* Gradient Overlays */
.gradient-overlay {
    position: relative;
}

.gradient-overlay::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-blue-indigo);
    opacity: 0.3;
    z-index: 1;
    pointer-events: none;
    mix-blend-mode: overlay;
}

.gradient-overlay-animated {
    position: relative;
}

.gradient-overlay-animated::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-cosmic);
    background-size: 300% auto;
    animation: gradientFlow 8s ease infinite;
    opacity: 0.3;
    z-index: 1;
    pointer-events: none;
    mix-blend-mode: overlay;
}

/* Gradient Buttons */
.gradient-button {
    background: var(--gradient-blue-indigo);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.4s ease;
    opacity: 0.9;
}

.gradient-button:hover {
    background: var(--gradient-indigo-purple);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(139, 92, 246, 0.2);
    opacity: 1;
}

.gradient-button-animated {
    background: var(--gradient-cosmic);
    background-size: 300% auto;
    animation: gradientFlow 8s ease infinite;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.4s ease;
    opacity: 0.9;
}

.gradient-button-animated:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(139, 92, 246, 0.2);
    opacity: 1;
}

/* Gradient Shadows */
.gradient-shadow-blue {
    box-shadow: 0 10px 25px rgba(59, 130, 246, 0.2);
}

.gradient-shadow-indigo {
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.2);
}

.gradient-shadow-purple {
    box-shadow: 0 10px 25px rgba(139, 92, 246, 0.2);
}

.gradient-shadow-animated {
    animation: shadowPulse 4s ease infinite alternate;
}

@keyframes shadowPulse {
    0% {
        box-shadow: 0 10px 25px rgba(59, 130, 246, 0.2);
    }
    50% {
        box-shadow: 0 10px 25px rgba(79, 70, 229, 0.2);
    }
    100% {
        box-shadow: 0 10px 25px rgba(139, 92, 246, 0.2);
    }
}

/* Gradient Glows */
.gradient-glow {
    position: relative;
}

.gradient-glow::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: var(--gradient-radial-blue);
    z-index: -1;
    opacity: 0.5;
    filter: blur(20px);
    pointer-events: none;
}

.gradient-glow-indigo {
    position: relative;
}

.gradient-glow-indigo::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: var(--gradient-radial-indigo);
    z-index: -1;
    opacity: 0.5;
    filter: blur(20px);
    pointer-events: none;
}

.gradient-glow-animated {
    position: relative;
}

.gradient-glow-animated::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    background: var(--gradient-radial-blue);
    z-index: -1;
    opacity: 0.5;
    filter: blur(20px);
    animation: glowChange 8s ease infinite alternate;
    pointer-events: none;
}

@keyframes glowChange {
    0% {
        background: var(--gradient-radial-blue);
        opacity: 0.4;
    }
    50% {
        background: var(--gradient-radial-indigo);
        opacity: 0.5;
    }
    100% {
        background: var(--gradient-radial-purple);
        opacity: 0.4;
    }
}

/* Gradient Dividers */
.gradient-divider {
    height: 1px;
    background: var(--gradient-blue-indigo);
    border: none;
    margin: 20px 0;
    opacity: 0.7;
}

.gradient-divider-animated {
    height: 1px;
    background: var(--gradient-cosmic);
    background-size: 300% auto;
    animation: gradientFlow 8s ease infinite;
    border: none;
    margin: 20px 0;
    opacity: 0.6;
}

/* Gradient Icons */
.gradient-icon {
    background: var(--gradient-blue-indigo);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: 0.9;
}

.gradient-icon-animated {
    background: var(--gradient-cosmic);
    background-size: 300% auto;
    animation: gradientFlow 8s ease infinite;
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: 0.9;
}

/* Gradient Fills */
.gradient-fill {
    fill: url(#gradient-blue-indigo);
    opacity: 0.9;
}

.gradient-fill-animated {
    animation: fillChange 8s ease infinite alternate;
}

@keyframes fillChange {
    0% {
        fill: var(--gradient-blue);
        opacity: 0.8;
    }
    50% {
        fill: var(--gradient-indigo);
        opacity: 0.9;
    }
    100% {
        fill: var(--gradient-purple);
        opacity: 0.8;
    }
}

/* Gradient Strokes */
.gradient-stroke {
    stroke: url(#gradient-blue-indigo);
    fill: none;
    opacity: 0.8;
}

.gradient-stroke-animated {
    stroke: url(#connection-gradient);
    fill: none;
    stroke-dasharray: 1000;
    stroke-dashoffset: 1000;
    animation: dash 8s linear forwards, fadeInOut 8s infinite;
    opacity: 0.6;
}

@keyframes dash {
    to {
        stroke-dashoffset: 0;
    }
}

@keyframes fadeInOut {
    0%, 100% {
        opacity: 0.4;
    }
    50% {
        opacity: 0.6;
    }
}

/* Gradient Animations */
@keyframes gradientFlow {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes gradientRotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Mist Effect */
.mist-effect {
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.05) 0%, rgba(79, 70, 229, 0) 70%);
    filter: blur(30px);
    animation: mist 15s ease-in-out infinite;
    mix-blend-mode: screen;
    pointer-events: none;
    opacity: 0.5;
}

@keyframes mist {
    0% {
        filter: blur(20px);
        opacity: 0.3;
    }
    50% {
        filter: blur(30px);
        opacity: 0.5;
    }
    100% {
        filter: blur(20px);
        opacity: 0.3;
    }
}

/* Nebula Effect */
.nebula-effect {
    position: absolute;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 30% 20%, rgba(59, 130, 246, 0.1) 0%, rgba(59, 130, 246, 0) 30%),
        radial-gradient(circle at 70% 60%, rgba(139, 92, 246, 0.1) 0%, rgba(139, 92, 246, 0) 30%),
        radial-gradient(circle at 40% 80%, rgba(79, 70, 229, 0.1) 0%, rgba(79, 70, 229, 0) 40%);
    filter: blur(40px);
    mix-blend-mode: screen;
    pointer-events: none;
    opacity: 0.6;
}

/* Cosmic Dust */
.cosmic-dust {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(1px 1px at 10% 10%, rgba(255, 255, 255, 0.1) 50%, transparent 100%),
        radial-gradient(1px 1px at 20% 50%, rgba(255, 255, 255, 0.1) 50%, transparent 100%),
        radial-gradient(1px 1px at 30% 30%, rgba(255, 255, 255, 0.1) 50%, transparent 100%),
        radial-gradient(1px 1px at 40% 70%, rgba(255, 255, 255, 0.1) 50%, transparent 100%),
        radial-gradient(1px 1px at 50% 20%, rgba(255, 255, 255, 0.1) 50%, transparent 100%),
        radial-gradient(1px 1px at 60% 40%, rgba(255, 255, 255, 0.1) 50%, transparent 100%),
        radial-gradient(1px 1px at 70% 90%, rgba(255, 255, 255, 0.1) 50%, transparent 100%),
        radial-gradient(1px 1px at 80% 60%, rgba(255, 255, 255, 0.1) 50%, transparent 100%),
        radial-gradient(1px 1px at 90% 10%, rgba(255, 255, 255, 0.1) 50%, transparent 100%);
    background-size: 100% 100%;
    opacity: 0.4;
    pointer-events: none;
}

/* Applied to Specific Elements */

/* Navigation Bar Logo */
.logo-text {
    background-size: 300% auto;
    background-image: linear-gradient(90deg, 
        var(--gradient-blue), 
        var(--gradient-indigo), 
        var(--gradient-blue));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradientFlow 8s ease infinite;
}

/* Buttons */
.btn-primary {
    background: var(--gradient-blue-indigo);
    transition: all 0.4s ease;
    opacity: 0.9;
}

.btn-primary:hover {
    background: var(--gradient-indigo-purple);
    opacity: 1;
}

/* AI Visualization */
.sphere-core {
    background: radial-gradient(circle, var(--gradient-blue), var(--gradient-indigo));
    box-shadow: 0 0 30px rgba(79, 70, 229, 0.3);
    opacity: 0.9;
}

/* Feature Items */
.feature-arrow {
    background: var(--gradient-blue-indigo);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: 0.8;
}

/* Status Indicator */
.status-dot {
    background: var(--gradient-blue-indigo);
    box-shadow: 0 0 10px rgba(79, 70, 229, 0.3);
    opacity: 0.8;
}

/* Quote Line */
.quote-line {
    background: linear-gradient(90deg, var(--gradient-blue), transparent);
    opacity: 0.7;
}

.quote-line::before {
    background: var(--gradient-blue);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.3);
    opacity: 0.8;
}