/* ===================================
   DESIGN SYSTEM & CSS VARIABLES
   =================================== */
:root {
    /* Color Palette — Warm Amber / Charcoal */
    --color-bg-primary: #0c0c0c;
    --color-bg-secondary: #141414;
    --color-bg-card: #1a1a1a;
    --color-bg-card-hover: #1f1f1f;

    --color-accent: #a855f7;
    --color-accent-light: #c084fc;
    --color-accent-dim: rgba(168, 85, 247, 0.08);
    --color-accent-border: rgba(168, 85, 247, 0.25);

    --color-text-primary: #f5f5f5;
    --color-text-secondary: #a3a3a3;
    --color-text-muted: #666666;

    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-hover: rgba(255, 255, 255, 0.12);

    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;
    --spacing-2xl: 8rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* Transitions */
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    --transition-fast: 0.2s var(--ease-out-expo);
    --transition-base: 0.4s var(--ease-out-expo);
    --transition-slow: 0.7s var(--ease-out-expo);

    /* Shadows */
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-card-hover: 0 12px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 60px rgba(168, 85, 247, 0.08);
    --shadow-button: 0 4px 20px rgba(168, 85, 247, 0.25);
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    color: var(--color-text-primary);
    background: var(--color-bg-primary);
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Dot-grid canvas background */
#dot-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.4;
}




/* Selection styling */
::selection {
    background: rgba(168, 85, 247, 0.3);
    color: var(--color-text-primary);
}

/* ===================================
   SCROLL PROGRESS INDICATOR
   =================================== */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
    z-index: 10000;
    transform-origin: left;
    transition: width 0.1s linear;
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 2000;
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(12, 12, 12, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: transform 0.5s var(--ease-out-expo);
}

.header-hidden {
    transform: translateY(-100%);
}

nav {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    text-decoration: none;
    transition: var(--transition-fast);
}

.logo img {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
}

.logo span {
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.logo:hover {
    opacity: 0.8;
}

nav ul {
    list-style: none;
    display: flex;
    gap: var(--spacing-xs);
}

nav ul li a {
    text-decoration: none;
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.85rem;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast);
    position: relative;
    letter-spacing: 0.02em;
}

nav ul li a:hover {
    color: var(--color-accent);
    background: var(--color-accent-dim);
}

/* ===================================
   LAYOUT CONTAINER
   =================================== */
.container {
    position: relative;
    z-index: 2;
}

main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    padding-top: 100px;
}

section {
    margin-bottom: var(--spacing-2xl);
}

/* ===================================
   REVEAL ANIMATIONS
   =================================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-child {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--ease-out-expo), transform 0.6s var(--ease-out-expo);
}

.reveal-child.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   HERO / INTRO SECTION
   =================================== */
#intro {
    min-height: calc(100vh - 100px);
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
}

.hero-text {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.hero-label {
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--color-accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-weight: 500;
}

#intro h1 {
    font-family: var(--font-heading);
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
}

#intro h1 .highlight {
    color: var(--color-accent);
    display: inline;
}

.tagline {
    font-family: var(--font-mono);
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    font-weight: 400;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    min-height: 1.7em;
}

.tagline .typed-cursor {
    display: inline-block;
    width: 2px;
    height: 1.2em;
    background: var(--color-accent);
    animation: cursorBlink 1s steps(1) infinite;
    vertical-align: middle;
    margin-left: 2px;
}

@keyframes cursorBlink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.hero-cta a {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-decoration: none;
    padding: 0.6rem 1.4rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.hero-cta .cta-primary {
    background: var(--color-accent);
    color: #0c0c0c;
    box-shadow: var(--shadow-button);
}

.hero-cta .cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(168, 85, 247, 0.35);
}

.hero-cta .cta-secondary {
    background: transparent;
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-hover);
}

.hero-cta .cta-secondary:hover {
    color: var(--color-accent);
    border-color: var(--color-accent-border);
    background: var(--color-accent-dim);
}

/* Profile Image */
.profile-image {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.profile-image::before {
    content: '';
    position: absolute;
    width: 340px;
    height: 340px;
    border-radius: var(--radius-xl);
    background: radial-gradient(circle, rgba(168, 85, 247, 0.12) 0%, transparent 70%);
    filter: blur(40px);
    z-index: 0;
}

.profile-image img {
    width: 340px;
    height: 340px;
    border-radius: var(--radius-xl);
    object-fit: cover;
    object-position: center;
    border: 2px solid var(--color-accent-border);
    box-shadow: var(--shadow-glow);
    position: relative;
    z-index: 1;
    transition: var(--transition-base);
}

.profile-image img:hover {
    transform: scale(1.02);
    border-color: var(--color-accent);
    box-shadow: 0 0 80px rgba(168, 85, 247, 0.15);
}

/* ===================================
   SECTION HEADINGS
   =================================== */
.section-heading {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.section-heading h2 {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
}

.section-heading .heading-number {
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--color-accent);
    font-weight: 600;
}

.section-heading::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-border);
    margin-left: var(--spacing-sm);
}

/* ===================================
   ABOUT SECTION
   =================================== */

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.about-text p {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-sm);
}

.about-text p:last-child {
    margin-bottom: 0;
}

.about-text strong {
    color: var(--color-accent);
    font-weight: 600;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
}

.stat-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-md);
    text-align: center;
    transition: var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-border);
    box-shadow: var(--shadow-glow);
    background: var(--color-bg-card-hover);
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* ===================================
   TECH STACK / SKILLS SECTION
   =================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.skill-category {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.skill-category::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
    opacity: 0;
    transition: var(--transition-base);
}

.skill-category:hover::before {
    opacity: 1;
}

.skill-category:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent-border);
    box-shadow: var(--shadow-card-hover);
    background: var(--color-bg-card-hover);
}

.skill-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
    display: inline-block;
    transition: var(--transition-base);
}

.skill-category:hover .skill-icon {
    transform: scale(1.15);
}

.skill-category h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.skill-tags {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.skill-tags li {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    background: var(--color-accent-dim);
    border: 1px solid transparent;
    color: var(--color-text-secondary);
    padding: 0.35rem 0.75rem;
    border-radius: 100px;
    transition: var(--transition-fast);
    cursor: default;
}

.skill-tags li:hover {
    background: rgba(168, 85, 247, 0.2);
    border-color: var(--color-accent-border);
    color: var(--color-accent-light);
    transform: translateY(-1px);
}



/* ===================================
   CONTACT SECTION
   =================================== */
#contact {
    text-align: center;
    padding: var(--spacing-xl) 0;
}

.contact-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.contact-icons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.contact-icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    transition: var(--transition-base);
}

.contact-icon i {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    font-size: 1.3rem;
    transition: var(--transition-base);
}

.contact-icon:hover i {
    background: var(--color-accent);
    border-color: var(--color-accent);
    color: #0c0c0c;
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(168, 85, 247, 0.3);
}

.contact-icon-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: 500;
    transition: var(--transition-fast);
}

.contact-icon:hover .contact-icon-label {
    color: var(--color-accent);
}



/* ===================================
   FOOTER
   =================================== */
footer {
    text-align: center;
    padding: var(--spacing-lg) var(--spacing-md);
    color: var(--color-text-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    border-top: 1px solid var(--color-border);
    position: relative;
    z-index: 2;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

/* Tablet */
@media (max-width: 1024px) {
    #intro {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
        padding-top: var(--spacing-lg);
    }

    .hero-text {
        align-items: center;
    }

    .tagline {
        justify-content: center;
    }

    .hero-cta {
        justify-content: center;
    }

    .profile-image {
        order: -1;
    }

    .profile-image img {
        width: 280px;
        height: 280px;
    }

    .profile-image::before {
        width: 280px;
        height: 280px;
    }

    .section-heading::after {
        display: none;
    }

    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Mobile */
@media (max-width: 768px) {
    main {
        padding-top: 90px;
    }

    header {
        padding: 0.6rem var(--spacing-sm);
    }

    nav {
        flex-direction: column;
        gap: 0.4rem;
    }

    nav ul {
        gap: 0.3rem;
    }

    nav ul li a {
        font-size: 0.8rem;
        padding: 0.3rem 0.6rem;
    }

    #intro {
        min-height: auto;
        padding: var(--spacing-lg) 0;
    }

    #intro h1 {
        font-size: clamp(2rem, 8vw, 3rem);
    }

    .profile-image img {
        width: 220px;
        height: 220px;
    }

    .profile-image::before {
        width: 220px;
        height: 220px;
    }

    .skills-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }



    .section-heading {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.3rem;
    }

    .section-heading::after {
        display: none;
    }


    section {
        margin-bottom: var(--spacing-xl);
    }

}

/* Small Mobile */
@media (max-width: 480px) {
    .profile-image img {
        width: 180px;
        height: 180px;
    }

    .profile-image::before {
        width: 180px;
        height: 180px;
    }

    .logo img {
        width: 28px;
        height: 28px;
    }

    .logo span {
        font-size: 0.85rem;
    }

    nav ul li a {
        font-size: 0.75rem;
        padding: 0.25rem 0.5rem;
    }

    .hero-cta {
        flex-direction: column;
        align-items: stretch;
    }

    .hero-cta a {
        justify-content: center;
    }
}

/* ===================================
   UTILITY CLASSES
   =================================== */
.mono {
    font-family: var(--font-mono);
}