/* ========================================
   MODERN ENHANCEMENTS FOR PERSONAL WEBSITE
   ======================================== */

/* CSS Variables for Theme Colors */
:root {
    /* Theme Colors */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --accent-color: #667eea;
    --accent-hover: #764ba2;
    --bg-primary: #2e3842;
    --bg-secondary: #242a30;
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);

    /* Gradients */
    --gradient-purple-blue: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-orange-pink: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-green-blue: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.3);
}

/* ========================================
   TECH STACK SECTION
   ======================================== */
.tech-stack {
    padding: 4em 0;
    background: var(--bg-secondary);
}

.tech-stack .inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2em;
}

.tech-stack h2 {
    text-align: center;
    margin-bottom: 2em;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 2em;
    margin-top: 2em;
}

.tech-item {
    text-align: center;
    padding: 1.5em;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.tech-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-glow);
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--accent-color);
}

.tech-item i {
    font-size: 3em;
    margin-bottom: 0.5em;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tech-item h4 {
    font-size: 0.9em;
    margin: 0;
    color: var(--text-primary);
}

/* ========================================
   SMOOTH SCROLL ANIMATIONS
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   ENHANCED CARDS & SECTIONS
   ======================================== */
.enhanced-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 2em;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.enhanced-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

/* ========================================
   GRADIENT TEXT
   ======================================== */
.gradient-text {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
    background: var(--primary-gradient);
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.back-to-top.visible {
    display: flex;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

.back-to-top i {
    font-size: 1.2em;
    color: white;
}

/* ========================================
   LOADING ANIMATION
   ======================================== */
.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.5s ease;
}

.page-loader.hidden {
    opacity: 0;
    pointer-events: none;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--accent-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* ========================================
   ENHANCED SPOTLIGHT SECTIONS
   ======================================== */
.spotlight .content {
    transition: all 0.3s ease;
}

.spotlight:hover .content {
    transform: translateX(10px);
}

.spotlight .image img {
    transition: all 0.3s ease;
    border-radius: 8px;
}

.spotlight:hover .image img {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

/* ========================================
   PROJECT TAGS
   ======================================== */
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em;
    margin-top: 1em;
}

.project-tag {
    background: var(--primary-gradient);
    color: white;
    padding: 0.3em 0.8em;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: 600;
    letter-spacing: 0.05em;
}

/* ========================================
   ENHANCED BUTTONS
   ======================================== */
.btn-gradient {
    background: var(--primary-gradient);
    color: white;
    padding: 0.8em 2em;
    border: none;
    border-radius: 30px;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.btn-gradient:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* ========================================
   RESPONSIVE ADJUSTMENTS
   ======================================== */
@media screen and (max-width: 768px) {
    .tech-grid {
        grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
        gap: 1em;
    }

    .tech-item {
        padding: 1em;
    }

    .tech-item i {
        font-size: 2em;
    }

    .theme-toggle,
    .back-to-top {
        width: 45px;
        height: 45px;
    }
}

/* ========================================
   GLASSMORPHISM EFFECTS
   ======================================== */
.glass-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    box-shadow: var(--shadow-md);
}

/* ========================================
   PULSE ANIMATION FOR HIGHLIGHTS
   ======================================== */
@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.7;
    }
}

.pulse {
    animation: pulse 2s ease-in-out infinite;
}

/* ========================================
   IMPROVED TYPOGRAPHY
   ======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;700;800&family=Space+Grotesk:wght@400;600;700&display=swap');

body.modern-typography {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body.modern-typography h1,
body.modern-typography h2,
body.modern-typography h3,
body.modern-typography h4,
body.modern-typography h5,
body.modern-typography h6 {
    font-family: 'Space Grotesk', 'Inter', sans-serif;
}