/* =========================================================
   THEME: shared tokens and base styles for the whole site
   ========================================================= */

:root {
    /* Ink-navy base with a vibrant violet accent. */
    --bg:            #0B0E14;
    --bg-raised:     #10141D;
    --surface:       #151B26;
    --surface-hover: #1A2130;
    --border:        #262C3B;
    --border-strong: #343C4F;

    --text:          #E9EBF1;
    --text-muted:    #8B93A6;
    --text-faint:    #5C6478;

    --accent:        #7C5CFC;
    --accent-hover:  #9377FF;
    --accent-soft:   rgba(124, 92, 252, 0.14);
    --accent-border: rgba(124, 92, 252, 0.4);

    --font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
    --font-body:    'Inter', 'Segoe UI', sans-serif;

    --max-width: clamp(1160px, 78vw, 1400px);
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 22px;

    --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 62.5%; /* 1rem = 10px */
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    line-height: 1.7;
    font-size: 1.6rem;
    -webkit-font-smoothing: antialiased;
}

body.modal-open {
    overflow: hidden;
}

a {
    color: inherit;
    text-decoration: none;
}

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

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 clamp(2rem, 5vw, 4rem);
}

section {
    padding: clamp(6rem, 10vw, 10rem) 0;
}

.eyebrow {
    display: block;
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--accent);
    margin-bottom: 1.2rem;
    letter-spacing: 0.03em;
}

.section-heading {
    font-family: var(--font-display);
    font-size: clamp(2.8rem, 4vw, 4rem);
    font-weight: 600;
    margin-bottom: 1rem;
    max-width: 46rem;
}

.section-lede {
    color: var(--text-muted);
    font-size: clamp(1.5rem, 1.8vw, 1.65rem);
    max-width: 56rem;
    margin-bottom: clamp(3rem, 5vw, 5rem);
}

/* Respect users who don't want motion */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* -------------------- Header / Nav -------------------- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 50;
    background: rgba(11, 14, 20, 0.72);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transition: border-color 0.3s var(--ease);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 1.8rem;
    padding-bottom: 1.8rem;
}

.logo {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: 0.01em;
}

.logo span {
    color: var(--accent);
}

.navbar {
    display: flex;
    align-items: center;
    gap: 3.6rem;
}

.navbar a {
    position: relative;
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-muted);
    transition: color 0.25s var(--ease);
    padding: 0.4rem 0;
}

.navbar a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 100%;
    height: 1px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s var(--ease);
}

.navbar a:hover,
.navbar a.active {
    color: var(--text);
}

.navbar a:hover::after,
.navbar a.active::after {
    transform: scaleX(1);
    transform-origin: left;
}

#menu-icon {
    display: none;
    font-size: 2.8rem;
    color: var(--text);
    cursor: pointer;
}

/* -------------------- Buttons -------------------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    padding: 1.3rem 2.8rem;
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 1.45rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    cursor: pointer;
    border: 1px solid transparent;
    transition: transform 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--accent);
    color: #FFFFFF;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border-color: var(--border-strong);
}

.btn-ghost:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}

/* -------------------- Scroll reveal -------------------- */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.reveal-stagger.is-visible > * {
    transition-delay: calc(var(--stagger-index, 0) * 90ms);
}

/* -------------------- Footer -------------------- */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 5rem 0 3rem;
    background: var(--bg-raised);
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2.6rem;
    text-align: center;
}

.footer-social {
    display: flex;
    gap: 1.4rem;
}

.footer-social a {
    width: 4.2rem;
    height: 4.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    font-size: 1.9rem;
    color: var(--text-muted);
    transition: 0.3s var(--ease);
}

.footer-social a:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-4px);
}

.footer-links {
    display: flex;
    gap: 2.6rem;
    list-style: none;
    flex-wrap: wrap;
    justify-content: center;
}

.footer-links a {
    font-size: 1.4rem;
    color: var(--text-muted);
    border-bottom: 1px solid transparent;
    transition: 0.25s var(--ease);
}

.footer-links a:hover {
    color: var(--text);
    border-color: var(--accent);
}

.footer-copyright {
    font-size: 1.3rem;
    color: var(--text-faint);
}

/* -------------------- Mobile -------------------- */
@media (max-width: 900px) {
    .container { padding: 0 2.4rem; }

    #menu-icon { display: block; z-index: 60; }

    .navbar {
        position: fixed;
        top: 0;
        right: -100%;
        height: 100vh;
        width: min(70vw, 320px);
        background: var(--bg-raised);
        border-left: 1px solid var(--border);
        flex-direction: column;
        justify-content: center;
        gap: 3.2rem;
        transition: right 0.35s var(--ease);
    }

    .navbar.active {
        right: 0;
    }
}
/* =========================================================
   HOME PAGE: hero, education, services, testimonials, contact
   ========================================================= */

/* -------------------- Hero -------------------- */
.home {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 12rem;
    overflow: hidden;
}

#topology-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0.55;
    pointer-events: none;
}

.home::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 40%, transparent 0%, var(--bg) 78%);
    pointer-events: none;
}

.home .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    align-items: center;
    gap: 6rem;
}

.home-content {
    max-width: 56rem;
}

.home-content .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.9rem;
}

.home-content .eyebrow::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 12px var(--accent);
}

.home-content h1 {
    font-family: var(--font-display);
    font-size: clamp(3.4rem, 6vw, 5.6rem);
    font-weight: 600;
    line-height: 1.08;
    margin-bottom: 1.6rem;
}

.home-content h1 span {
    color: var(--accent);
}

.text-animation {
    font-family: var(--font-display);
    font-size: clamp(1.9rem, 2.6vw, 2.4rem);
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 2.6rem;
    min-height: 3rem;
}

.text-animation span {
    position: relative;
    color: var(--accent);
}

.text-animation span::before {
    content: "Full-Stack Developer";
    animation: words 12s infinite;
}

.text-animation span::after {
    content: "";
    position: absolute;
    right: -6px;
    top: 0;
    height: 100%;
    border-left: 2px solid var(--accent);
    animation: cursor 0.8s infinite;
}

@keyframes cursor {
    50% { border-color: transparent; }
}

@keyframes words {
    0%, 30%   { content: "Full-Stack Developer"; }
    33%, 63%  { content: "Frontend Engineer"; }
    66%, 96%  { content: "UI Craftsman"; }
}

.home-content p {
    font-size: 1.65rem;
    color: var(--text-muted);
    max-width: 50rem;
    margin-bottom: 3.4rem;
}

.btn-group {
    display: flex;
    align-items: center;
    gap: 1.6rem;
    margin-bottom: 3.6rem;
    flex-wrap: wrap;
}

.social-icons {
    display: flex;
    gap: 1.2rem;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4.4rem;
    height: 4.4rem;
    border: 1px solid var(--border-strong);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--text-muted);
    transition: 0.3s var(--ease);
}

.social-icons a:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: translateY(-4px);
}

.home-img {
    position: relative;
    justify-self: center;
}

.home-img .ring {
    position: relative;
    width: clamp(220px, 24vw, 340px);
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    padding: 6px;
    background: conic-gradient(from 210deg, var(--accent), transparent 60%);
}

.home-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 4px solid var(--bg);
}

/* -------------------- About / Education -------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 6rem;
    align-items: start;
}

.about-summary p {
    color: var(--text-muted);
    margin-bottom: 1.8rem;
    font-size: 1.6rem;
}

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

.timeline {
    position: relative;
    padding-left: 3.6rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 7px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: var(--border-strong);
}

.timeline-item {
    position: relative;
    padding-bottom: 3.6rem;
    transition: transform 0.35s var(--ease);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item:hover {
    transform: translateX(6px);
}

.timeline-dot {
    position: absolute;
    left: -3.6rem;
    top: 5px;
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background: var(--bg);
    border: 3px solid var(--accent-border);
    transition: 0.3s var(--ease);
}

.timeline-item:hover .timeline-dot {
    border-color: var(--accent);
    box-shadow: 0 0 14px var(--accent);
}

.timeline-date {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--accent);
    margin-bottom: 0.6rem;
}

.timeline-content {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 2.2rem 2.6rem;
    transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.timeline-item:hover .timeline-content {
    border-color: var(--accent-border);
    background: var(--surface-hover);
}

.timeline-content h3 {
    font-family: var(--font-display);
    font-size: 1.9rem;
    margin-bottom: 0.6rem;
}

.timeline-content p {
    color: var(--text-muted);
    font-size: 1.45rem;
}

/* -------------------- Services -------------------- */
.services-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.4rem;
}

.services-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3.6rem 3rem;
    transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}

.services-box:hover {
    transform: translateY(-8px);
    border-color: var(--accent-border);
    background: var(--surface-hover);
}

.services-box .icon {
    width: 5.2rem;
    height: 5.2rem;
    border-radius: 50%;
    background: var(--accent-soft);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.4rem;
    margin-bottom: 2.2rem;
    transition: 0.35s var(--ease);
}

.services-box:hover .icon {
    background: var(--accent);
    color: #FFFFFF;
}

.services-box h3 {
    font-family: var(--font-display);
    font-size: 2.1rem;
    margin-bottom: 1.2rem;
}

.services-box p {
    color: var(--text-muted);
    font-size: 1.5rem;
}

/* -------------------- Testimonials -------------------- */
.testimonials-wrapper {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2.4rem;
}

.testimonial-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 3.2rem;
    transition: transform 0.35s var(--ease), border-color 0.35s var(--ease);
}

.testimonial-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent-border);
}

.testimonial-card .quote-mark {
    font-family: var(--font-display);
    font-size: 3.6rem;
    color: var(--accent);
    line-height: 1;
    margin-bottom: 1rem;
}

.testimonial-card p {
    color: var(--text-muted);
    font-size: 1.45rem;
    margin-bottom: 2.4rem;
}

.testimonial-person {
    display: flex;
    align-items: center;
    gap: 1.4rem;
}

.testimonial-person img {
    width: 4.8rem;
    height: 4.8rem;
    border-radius: 50%;
    object-fit: cover;
    object-position: top center;
    border: 2px solid var(--accent-border);
}

.testimonial-person h4 {
    font-size: 1.5rem;
    margin-bottom: 0.2rem;
}

.testimonial-person span {
    font-size: 1.25rem;
    color: var(--text-faint);
}

/* -------------------- Contact -------------------- */
.contact-grid {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 6rem;
}

.contact-intro p {
    color: var(--text-muted);
    margin-bottom: 3rem;
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: 1.6rem;
    margin-bottom: 2.2rem;
}

.contact-detail .icon {
    width: 4.6rem;
    height: 4.6rem;
    flex-shrink: 0;
    border-radius: 50%;
    border: 1px solid var(--border-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--accent);
}

.contact-detail h4 {
    font-size: 1.5rem;
    margin-bottom: 0.2rem;
}

.contact-detail span {
    font-size: 1.4rem;
    color: var(--text-muted);
}

.contact form {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.input-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.8rem;
}

.contact input,
.contact textarea {
    width: 100%;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.6rem 1.8rem;
    font-family: var(--font-body);
    font-size: 1.5rem;
    color: var(--text);
    transition: 0.25s var(--ease);
    resize: none;
}

.contact input::placeholder,
.contact textarea::placeholder {
    color: var(--text-faint);
}

.contact input:focus,
.contact textarea:focus {
    border-color: var(--accent);
}

.contact .btn {
    align-self: flex-start;
}

/* -------------------- Responsive -------------------- */
@media (max-width: 1024px) {
    .services-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .home .container,
    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
    }

    .home-img { order: -1; }

    .services-container,
    .testimonials-wrapper {
        grid-template-columns: 1fr;
    }

    .input-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    section { padding: 5rem 0; }

    .btn-group { flex-direction: column; align-items: stretch; }

    .home-img .ring { width: clamp(160px, 55vw, 220px); }

    .timeline { padding-left: 3rem; }

    .contact-detail { align-items: flex-start; }
}