/* ==========================================
   HEADER & NAVIGATION (Glassmorphism & Sliding Switch)
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    transition: background var(--transition-normal), border-color var(--transition-normal), backdrop-filter var(--transition-normal);
}

.header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}

.scroll-progress-bar {
    position: absolute;
    top: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-2) 0%, var(--accent-4) 100%);
    width: 0%;
    z-index: 1001;
    transition: width 0.1s ease-out;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-right-wrap {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.4rem;
    letter-spacing: -0.04em;
    color: var(--text-primary);
}

.logo-img {
    height: 32px;
    width: auto;
    object-fit: contain;
    display: block;
}

.nav-list {
    display: flex;
    gap: 2.5rem;
}

.nav-link {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
    transition: color var(--transition-fast);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--text-primary);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background-color: var(--accent-1);
    transition: width var(--transition-normal);
    border-radius: 2px;
}

.nav-link.active::after {
    width: 100%;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* Sliding custom toggle switch */
.theme-toggle-wrap {
    position: relative;
    width: 54px;
    height: 28px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    cursor: pointer;
    overflow: hidden;
    transition: background var(--transition-normal);
}

[data-theme="light"] .theme-toggle-wrap {
    background: rgba(0, 0, 0, 0.04);
}

.theme-toggle-slider {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 22px;
    height: 22px;
    background: var(--accent-1);
    border-radius: 50%;
    transition: transform var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(193, 18, 31, 0.3);
}

.theme-toggle-slider i {
    font-size: 0.75rem;
    color: #FFFFFF;
    transition: opacity var(--transition-fast);
}

.theme-toggle-slider .light-icon {
    opacity: 0;
    position: absolute;
}

.theme-toggle-slider .dark-icon {
    opacity: 1;
}

[data-theme="light"] .theme-toggle-slider {
    transform: translateX(26px);
}

[data-theme="light"] .theme-toggle-slider .light-icon {
    opacity: 1;
}

[data-theme="light"] .theme-toggle-slider .dark-icon {
    opacity: 0;
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 16px;
    z-index: 1002;
}

.mobile-toggle span {
    display: block;
    height: 1.5px;
    width: 100%;
    background: var(--text-primary);
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* ==========================================
   HERO SECTION (Cinematic layout)
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
    position: relative;
    z-index: 1;
}

.hero-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.hero-content {
    text-align: left;
    position: relative;
    z-index: 5;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    border-radius: 100px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
}

[data-theme="light"] .hero-badge {
    background: rgba(0, 0, 0, 0.02);
}

.pulse-dot {
    display: inline-block;
    width: 6px;
    height: 6px;
    background-color: var(--accent-1);
    border-radius: 50%;
    position: relative;
}

.pulse-dot::after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border-radius: 50%;
    border: 1px solid var(--accent-1);
    animation: pulse 2s linear infinite;
}

.hero-title {
    font-size: clamp(3rem, 7vw, 4.8rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
    font-weight: 800;
    margin-bottom: 2.25rem;
    text-transform: uppercase;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    margin-bottom: 3.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
    font-weight: 400;
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: flex-start;
}

/* Giant background glow inside hero */
.hero-bg-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    filter: blur(120px);
    z-index: -1;
    pointer-events: none;
    animation: heroGlowPulse 8s ease-in-out infinite;
}

/* Particle items inside hero */
.floating-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-1);
    border-radius: 50%;
    pointer-events: none;
    opacity: 0.3;
    z-index: 0;
}

/* Console Card styling (Corporate system metrics panel) */
.console-card {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 0 !important;
    font-family: 'JetBrains Mono', SFMono-Regular, Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 0.82rem;
    overflow: hidden;
    box-shadow: var(--card-shadow);
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.console-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
}

[data-theme="light"] .console-header {
    background: rgba(0, 0, 0, 0.02);
}

.console-dots {
    display: flex;
    gap: 6px;
}

.console-dots .dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.console-dots .dot.red { background: #FF5F56; }
.console-dots .dot.yellow { background: #FFBD2E; }
.console-dots .dot.green { background: #27C93F; }

.console-title {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.console-badge {
    font-size: 0.75rem;
    font-weight: 600;
    color: #27C93F;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.console-body {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.console-line {
    display: flex;
    gap: 0.75rem;
    line-height: 1.5;
}

.c-tag {
    color: var(--accent-4);
    font-weight: 600;
}

[data-theme="light"] .c-tag {
    color: var(--accent-1);
}

.c-val {
    color: var(--text-primary);
}

.console-divider {
    height: 1px;
    background: var(--border-color);
    margin: 0.75rem 0;
}

.console-logs {
    height: 110px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    color: var(--text-secondary);
    opacity: 0.85;
    scroll-behavior: smooth;
    transform: translate3d(0, 0, 0);
    -webkit-overflow-scrolling: touch;
}

.log-line {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transform: translate3d(0, 0, 0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    display: block;
    line-height: 1.6;
}

/* ==========================================
   ABOUT SECTION
   ========================================== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.5rem;
}

.about-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.card-icon {
    font-size: 2.2rem;
    color: var(--accent-1);
    margin-bottom: 2rem;
    display: inline-block;
    transition: transform var(--transition-normal);
}

.about-card:hover .card-icon {
    transform: rotateY(15deg) scale(1.1);
}

/* ==========================================
   BLOG SECTION
   ========================================== */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

.blog-card {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.blog-card-top {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.blog-card-img {
    flex: 0 0 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--accent-1);
    transition: transform var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal);
}

[data-theme="light"] .blog-card-img {
    background: rgba(0, 0, 0, 0.02);
}

.blog-card:hover .blog-card-img {
    transform: scale(1.05) rotate(5deg);
    color: var(--accent-4);
    border-color: rgba(193, 18, 31, 0.3);
}

.blog-card-text {
    flex: 1;
}

.blog-category {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-1);
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.blog-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    line-height: 1.3;
}

.blog-title a {
    color: var(--text-primary);
}

.blog-title a:hover {
    color: var(--accent-1);
}

.blog-excerpt {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 2rem;
}

/* ==========================================
   STATS SECTION
   ========================================== */
.stats {
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.01);
}

[data-theme="light"] .stats {
    background: rgba(0, 0, 0, 0.01);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2.5rem;
}

.stat-card {
    text-align: center;
    padding: 1.5rem 0;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.75rem;
    letter-spacing: -0.04em;
}

.stat-number .counter {
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-1) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

/* ==========================================
   SKILLS SECTION
   ========================================== */
.skills-wrapper {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.skill-item {
    width: 100%;
}

.skill-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.75rem;
    font-weight: 600;
    font-size: 1rem;
    letter-spacing: -0.01em;
}

.skill-name {
    color: var(--text-primary);
}

.skill-percent {
    color: var(--accent-1);
    font-family: var(--font-heading);
}

.skill-bar {
    height: 4px;
    background: var(--border-color);
    border-radius: 100px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-2) 0%, var(--accent-4) 100%);
    border-radius: 100px;
    width: 0;
    transition: width 1.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================
   CONTACT SECTION
   ========================================== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.8fr;
    gap: 5rem;
    align-items: flex-start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.info-item {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.info-icon {
    width: 54px;
    height: 54px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--accent-1);
    transition: transform var(--transition-normal), color var(--transition-normal), border-color var(--transition-normal);
}

[data-theme="light"] .info-icon {
    background: rgba(0, 0, 0, 0.02);
}

.info-item:hover .info-icon {
    transform: scale(1.1) rotate(10deg);
    color: var(--accent-4);
    border-color: rgba(193, 18, 31, 0.3);
}

.info-item h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.info-item p {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.contact-form-container {
    padding: 3.5rem;
}

/* ==========================================
   FOOTER
   ========================================== */
.footer {
    border-top: 1px solid var(--border-color);
    padding: 6rem 0 3rem 0;
    background: var(--bg-secondary);
    position: relative;
    z-index: 10;
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
}

.footer-brand p {
    margin-top: 0.75rem;
    max-width: 320px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.footer-social {
    display: flex;
    gap: 1.25rem;
}

.footer-social a {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: all var(--transition-normal);
}

[data-theme="light"] .footer-social a {
    background: rgba(0, 0, 0, 0.02);
}

.footer-social a:hover {
    background: var(--accent-1);
    color: #FFFFFF;
    border-color: var(--accent-1);
    transform: translateY(-5px);
    box-shadow: var(--glow-shadow);
}

.footer-bottom {
    font-size: 0.9rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
}

.footer-bottom-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.dev-link {
    font-family: var(--font-heading);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: transform var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.dev-gradient {
    background: linear-gradient(135deg, var(--accent-4) 0%, var(--accent-1) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
    font-weight: 700;
}

.dev-link:hover {
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .footer-bottom-container {
        flex-direction: column;
        text-align: center;
        gap: 0.75rem;
    }
}

/* ==========================================
   RESPONSIVE DESIGN (Adaptive layout)
   ========================================== */
@media (max-width: 1024px) {
    .hero-container { grid-template-columns: 1fr; text-align: center; gap: 3rem; }
    .hero-content { text-align: center; }
    .hero-actions { justify-content: center; }
    .about-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .blog-grid { grid-template-columns: 1fr; gap: 2rem; }
    .contact-wrapper { grid-template-columns: 1fr; gap: 4rem; }
    .contact-info { flex-direction: row; justify-content: space-between; flex-wrap: wrap; }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 100px;
    }
    
    #nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background: var(--bg-secondary);
        backdrop-filter: blur(25px);
        -webkit-backdrop-filter: blur(25px);
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        transform: translateX(100%);
        transition: transform var(--transition-slow);
        border-top: 1px solid var(--border-color);
    }
    
    #nav-menu.active {
        transform: translateX(0);
    }
    
    .nav-list {
        flex-direction: column;
        text-align: center;
        gap: 3rem;
    }
    
    .nav-link {
        font-size: 1.5rem;
        font-weight: 700;
    }
    
    .mobile-toggle {
        display: flex;
    }
    
    .about-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    
    .contact-info { flex-direction: column; gap: 2rem; }
    .contact-form-container { padding: 2.5rem 1.5rem; }
    
    .footer-container { flex-direction: column; text-align: center; gap: 3rem; }
    
    .hero-title {
        font-size: clamp(3rem, 12vw, 4.5rem);
    }
}