/* ==========================================================
   Anjyot Dhamapurkar — Portfolio Stylesheet
   Modern  ·  Light  ·  Responsive  ·  Animated
   Font: Inter (Google Fonts)
   ========================================================== */

/* ---------- CSS Reset & Base ---------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* ── Colour Palette (Light Theme) ── */
    --clr-bg:             #f8f9fc;
    --clr-bg-alt:         #f0f1f7;
    --clr-surface:        #ffffff;
    --clr-surface-alt:    #f4f5fa;
    --clr-border:         #e2e4ef;
    --clr-text:           #1e1e2e;
    --clr-text-muted:     #5f6380;
    --clr-accent:         #6c5ce7;
    --clr-accent-hover:   #5a49d6;
    --clr-accent-glow:    rgba(108, 92, 231, 0.18);
    --clr-gradient-start: #6c5ce7;
    --clr-gradient-mid:   #a855f7;
    --clr-gradient-end:   #ec4899;

    /* ── Spacing / Shape ── */
    --radius:       14px;
    --radius-sm:    10px;
    --radius-pill:  50px;
    --shadow:       0 8px 32px rgba(30, 30, 46, 0.10);
    --shadow-glow:  0 4px 20px var(--clr-accent-glow);
    --transition:   0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --max-width:    960px;
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--clr-bg);
    color: var(--clr-text);
    line-height: 1.75;
    min-height: 100vh;
    overflow-x: hidden;

    /* Subtle radial tints for depth */
    background-image:
        radial-gradient(ellipse 80% 60% at 50% -20%, rgba(108, 92, 231, 0.06), transparent),
        radial-gradient(ellipse 70% 50% at 80% 110%, rgba(236, 72, 153, 0.04), transparent);
    background-attachment: fixed;
}

/* Selection colour */
::selection {
    background: var(--clr-accent);
    color: #fff;
}

a {
    color: var(--clr-accent);
    text-decoration: none;
    transition: color var(--transition), text-shadow var(--transition);
}

a:hover {
    color: var(--clr-accent-hover);
    text-shadow: 0 0 8px var(--clr-accent-glow);
}

a:focus-visible {
    outline: 2px solid var(--clr-accent);
    outline-offset: 3px;
    border-radius: 4px;
}

img {
    max-width: 100%;
    display: block;
}


/* ==========================================================
   Navigation
   ========================================================== */
nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(248, 249, 252, 0.82);
    backdrop-filter: blur(18px) saturate(1.6);
    -webkit-backdrop-filter: blur(18px) saturate(1.6);
    border-bottom: 1px solid var(--clr-border);
    transition: background var(--transition);
}

nav .nav-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0.9rem 1.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .nav-logo {
    font-weight: 900;
    font-size: 1.3rem;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--clr-gradient-start), var(--clr-gradient-mid), var(--clr-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    user-select: none;
}

nav .nav-links {
    list-style: none;
    display: flex;
    gap: 0.35rem;
}

nav .nav-links li a {
    color: var(--clr-text-muted);
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    padding: 0.45rem 0.9rem;
    border-radius: var(--radius-pill);
    transition: color var(--transition), background var(--transition), transform var(--transition);
    position: relative;
}

nav .nav-links li a:hover {
    color: var(--clr-accent);
    background: rgba(108, 92, 231, 0.08);
    transform: translateY(-1px);
    text-shadow: none;
}

nav .nav-links li a:active {
    transform: scale(0.97);
}


/* ==========================================================
   Layout
   ========================================================== */
main {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 6.5rem 2rem 3rem;
}

section {
    margin-bottom: 4.5rem;
}


/* ==========================================================
   Section Headings
   ========================================================== */
.section-title {
    font-size: 1.65rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 1.6rem;
    position: relative;
    display: inline-block;
    padding-bottom: 0.55rem;
}

.section-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    height: 3.5px;
    width: 56px;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--clr-gradient-start), var(--clr-gradient-mid), var(--clr-gradient-end));
}


/* ==========================================================
   Hero / Profile Header
   ========================================================== */
.hero {
    text-align: center;
    padding: 4rem 0 3rem;
    position: relative;
}

/* Decorative glow behind hero */
.hero::before {
    content: '';
    position: absolute;
    top: 10%;
    left: 50%;
    width: 420px;
    height: 420px;
    transform: translateX(-50%);
    background: radial-gradient(circle, rgba(108, 92, 231, 0.07) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.hero .profile-img {
    width: 170px;
    height: 170px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid transparent;
    background-image: linear-gradient(#ffffff, #ffffff),
                      linear-gradient(135deg, var(--clr-gradient-start), var(--clr-gradient-mid), var(--clr-gradient-end));
    background-origin: border-box;
    background-clip: padding-box, border-box;
    box-shadow: 0 0 40px var(--clr-accent-glow), 0 0 80px rgba(108, 92, 231, 0.08);
    margin: 0 auto 2rem;
    transition: transform var(--transition), box-shadow var(--transition);
}

.hero .profile-img:hover {
    transform: scale(1.07) rotate(2deg);
    box-shadow: 0 0 55px var(--clr-accent-glow), 0 0 100px rgba(108, 92, 231, 0.12);
}

.hero h1 {
    font-size: 2.6rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    margin-bottom: 0.4rem;
    background: linear-gradient(135deg, var(--clr-gradient-start), var(--clr-gradient-mid), var(--clr-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero .subtitle {
    font-size: 1.08rem;
    color: var(--clr-text-muted);
    margin-bottom: 1.8rem;
    font-weight: 400;
    letter-spacing: 0.03em;
}

.hero .cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}


/* ==========================================================
   Buttons
   ========================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.72rem 1.7rem;
    border-radius: var(--radius-pill);
    font-size: 0.92rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all var(--transition);
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

/* Shimmer sweep effect */
.btn::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transition: left 0.6s ease;
}

.btn:hover::after {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--clr-gradient-start), var(--clr-gradient-mid), var(--clr-gradient-end));
    color: #fff;
    box-shadow: 0 4px 22px var(--clr-accent-glow);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 8px 32px var(--clr-accent-glow);
    color: #fff;
}

.btn-primary:active {
    transform: translateY(-1px) scale(0.99);
}

.btn-outline {
    background: transparent;
    color: var(--clr-accent);
    border: 2px solid var(--clr-accent);
}

.btn-outline:hover {
    background: var(--clr-accent);
    color: #fff;
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 6px 24px var(--clr-accent-glow);
}

.btn-outline:active {
    transform: translateY(-1px) scale(0.99);
}


/* ==========================================================
   About
   ========================================================== */
.about-text {
    color: var(--clr-text-muted);
    font-size: 1rem;
    max-width: 740px;
    line-height: 1.85;
}

.about-text p + p {
    margin-top: 1rem;
}

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


/* ==========================================================
   Skills
   ========================================================== */
.skills-grid {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.skills-grid li {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    padding: 1rem 1.3rem;
    font-size: 0.94rem;
    font-weight: 500;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
    cursor: default;
}

/* Gradient left-edge accent */
.skills-grid li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--clr-gradient-start), var(--clr-gradient-end));
    opacity: 0;
    transition: opacity var(--transition);
}

.skills-grid li::after {
    content: '✦';
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--clr-accent);
    opacity: 0.3;
    font-size: 1.1rem;
    transition: opacity var(--transition), transform var(--transition);
}

.skills-grid li:hover {
    border-color: var(--clr-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
    background: var(--clr-surface-alt);
}

.skills-grid li:hover::before {
    opacity: 1;
}

.skills-grid li:hover::after {
    opacity: 0.8;
    transform: translateY(-50%) rotate(45deg);
}


/* ==========================================================
   Projects
   ========================================================== */
.project-card {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius);
    padding: 1.7rem 1.8rem;
    margin-bottom: 1.25rem;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

/* Top gradient bar */
.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--clr-gradient-start), var(--clr-gradient-mid), var(--clr-gradient-end));
    opacity: 0;
    transition: opacity var(--transition);
}

.project-card:hover {
    border-color: var(--clr-accent);
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    background: var(--clr-surface-alt);
}

.project-card:hover::before {
    opacity: 1;
}

.project-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.55rem;
    color: var(--clr-text);
    transition: color var(--transition);
}

.project-card:hover h3 {
    background: linear-gradient(90deg, var(--clr-gradient-start), var(--clr-gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-card p {
    color: var(--clr-text-muted);
    font-size: 0.92rem;
    line-height: 1.7;
}


/* ==========================================================
   Contact
   ========================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.1rem;
}

.contact-item {
    background: var(--clr-surface);
    border: 1px solid var(--clr-border);
    border-radius: var(--radius-sm);
    padding: 1.2rem 1.4rem;
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

/* Side accent bar */
.contact-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--clr-gradient-start), var(--clr-gradient-end));
    opacity: 0;
    transition: opacity var(--transition);
}

.contact-item:hover {
    border-color: var(--clr-accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
    background: var(--clr-surface-alt);
}

.contact-item:hover::before {
    opacity: 1;
}

.contact-item .label {
    font-size: 0.76rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--clr-accent);
    font-weight: 700;
    margin-bottom: 0.35rem;
}

.contact-item .value {
    font-size: 0.96rem;
    color: var(--clr-text);
    font-weight: 500;
}


/* ==========================================================
   Social Links
   ========================================================== */
.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.8rem;
    flex-wrap: wrap;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    background: var(--clr-surface-alt);
    color: var(--clr-text-muted);
    padding: 0.65rem 1.35rem;
    border-radius: var(--radius-pill);
    font-size: 0.88rem;
    font-weight: 600;
    border: 1px solid var(--clr-border);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.social-links a::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.30), transparent);
    transition: left 0.5s ease;
}

.social-links a:hover {
    color: #fff;
    border-color: var(--clr-accent);
    background: linear-gradient(135deg, var(--clr-gradient-start), var(--clr-gradient-mid));
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
    text-shadow: none;
}

.social-links a:hover::after {
    left: 100%;
}


/* ==========================================================
   Footer
   ========================================================== */
footer {
    text-align: center;
    padding: 2.5rem 1.75rem;
    border-top: 1px solid var(--clr-border);
    margin-top: 1rem;
    position: relative;
}

/* Gradient glow on footer border */
footer::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    width: 200px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--clr-accent), transparent);
}

footer p {
    color: var(--clr-text-muted);
    font-size: 0.85rem;
    letter-spacing: 0.02em;
}


/* ==========================================================
   Animations — Fade-in & Slide-in on Load
   ========================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 40px var(--clr-accent-glow), 0 0 80px rgba(108, 92, 231, 0.08);
    }
    50% {
        box-shadow: 0 0 55px var(--clr-accent-glow), 0 0 110px rgba(108, 92, 231, 0.14);
    }
}

/* Hero entrance */
.hero {
    animation: fadeInScale 0.8s ease both;
}

.hero .profile-img {
    animation: glowPulse 4s ease-in-out infinite;
}

/* Section stagger */
section {
    animation: fadeInUp 0.7s ease both;
}

section:nth-of-type(1) { animation-delay: 0.1s; }
section:nth-of-type(2) { animation-delay: 0.2s; }
section:nth-of-type(3) { animation-delay: 0.35s; }
section:nth-of-type(4) { animation-delay: 0.5s; }

/* Section title slide-in */
.section-title {
    animation: slideInLeft 0.6s ease both;
    animation-delay: 0.3s;
}

/* Skill items stagger */
.skills-grid li {
    animation: fadeInUp 0.5s ease both;
}
.skills-grid li:nth-child(1) { animation-delay: 0.15s; }
.skills-grid li:nth-child(2) { animation-delay: 0.22s; }
.skills-grid li:nth-child(3) { animation-delay: 0.29s; }
.skills-grid li:nth-child(4) { animation-delay: 0.36s; }
.skills-grid li:nth-child(5) { animation-delay: 0.43s; }
.skills-grid li:nth-child(6) { animation-delay: 0.50s; }

/* Project cards stagger */
.project-card {
    animation: fadeInUp 0.5s ease both;
}
.project-card:nth-child(2) { animation-delay: 0.15s; }
.project-card:nth-child(3) { animation-delay: 0.25s; }
.project-card:nth-child(4) { animation-delay: 0.35s; }


/* ==========================================================
   Responsive — Tablet (≤ 900px)
   ========================================================== */
@media (max-width: 900px) {
    main {
        padding: 5.5rem 1.5rem 2.5rem;
    }

    .hero h1 {
        font-size: 2.1rem;
    }

    .hero .profile-img {
        width: 145px;
        height: 145px;
    }

    section {
        margin-bottom: 3.5rem;
    }

    .project-card {
        padding: 1.4rem 1.5rem;
    }
}


/* ==========================================================
   Responsive — Mobile (≤ 600px)
   ========================================================== */
@media (max-width: 600px) {
    main {
        padding: 5rem 1.1rem 2rem;
    }

    nav .nav-inner {
        padding: 0.75rem 1rem;
        flex-direction: column;
        gap: 0.6rem;
    }

    nav .nav-links {
        gap: 0.15rem;
    }

    nav .nav-links li a {
        font-size: 0.82rem;
        padding: 0.35rem 0.65rem;
    }

    .hero {
        padding: 2.5rem 0 2rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero .subtitle {
        font-size: 0.95rem;
    }

    .hero .profile-img {
        width: 130px;
        height: 130px;
    }

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

    .btn {
        width: 100%;
        max-width: 260px;
        justify-content: center;
    }

    .section-title {
        font-size: 1.35rem;
    }

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

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

    .social-links {
        justify-content: center;
    }

    section {
        margin-bottom: 3rem;
    }
}


/* ==========================================================
   Accessibility — Reduced Motion
   ========================================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}