/* ============================================
   VARIABLES & RESET
   ============================================ */
:root {
    --bg:        #080b12;
    --bg-2:      #0d1120;
    --bg-3:      #111827;
    --border:    rgba(255,255,255,0.07);
    --text:      #e8eaf0;
    --text-muted:#7c849c;
    --accent:    #4ade80;
    --accent-2:  #22d3ee;
    --accent-3:  #f59e0b;
    --white:     #ffffff;

    --font-display: 'Syne', sans-serif;
    --font-body:    'DM Sans', sans-serif;
    --font-mono:    'DM Mono', monospace;

    --radius:    12px;
    --radius-lg: 20px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --glow: 0 0 40px rgba(74, 222, 128, 0.15);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font-body);
    font-weight: 300;
    line-height: 1.7;
    overflow-x: hidden;
}

::selection { background: rgba(74,222,128,0.25); color: var(--white); }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 2px; }

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }

/* ============================================
   LAYOUT HELPERS
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }
.reveal--delay-5 { transition-delay: 0.5s; }

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.75rem;
    border-radius: var(--radius);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 0.02em;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.1);
    opacity: 0;
    transition: opacity 0.2s;
}
.btn:hover::before { opacity: 1; }

.btn--primary {
    background: var(--accent);
    color: #080b12;
}
.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(74,222,128,0.35);
}
.btn--outline {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
}
.btn--outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
}
.btn--full { width: 100%; justify-content: center; }

/* ============================================
   SECTION COMMON
   ============================================ */
section { padding: 7rem 0; }

.section-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.15em;
    margin-bottom: 1.25rem;
}
.section-label__line {
    width: 32px;
    height: 1px;
    background: var(--accent);
    flex-shrink: 0;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.25rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--white);
    margin-bottom: 1rem;
}
.section-title em {
    font-style: normal;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-sub {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 3.5rem;
}

/* ============================================
   NAVIGATION
   ============================================ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 1.25rem 2rem;
    transition: var(--transition);
}
.nav.scrolled {
    background: rgba(8,11,18,0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    padding: 0.9rem 2rem;
}
.nav__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.nav__logo {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.02em;
}
.nav__logo-bracket { color: var(--accent); }

.nav__links {
    display: flex;
    gap: 2.5rem;
}
.nav__link {
    font-family: var(--font-display);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.02em;
    transition: color 0.2s;
    position: relative;
}
.nav__link::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 1px;
    background: var(--accent);
    transition: width 0.3s;
}
.nav__link:hover { color: var(--white); }
.nav__link:hover::after { width: 100%; }

.nav__cta {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--accent);
    color: #080b12;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.83rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    transition: var(--transition);
}
.nav__cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(74,222,128,0.3);
}

.nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}
.nav__hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 7rem 2rem 4rem;
    overflow: hidden;
}

.hero__bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero__grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black, transparent);
}

.hero__glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.35;
}
.hero__glow--1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(74,222,128,0.5), transparent 70%);
    top: -200px; right: -100px;
}
.hero__glow--2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(34,211,238,0.4), transparent 70%);
    bottom: 0; left: 20%;
}

.hero__orb {
    position: absolute;
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}
.hero__orb--1 {
    width: 12px; height: 12px;
    background: var(--accent);
    box-shadow: 0 0 20px var(--accent);
    top: 25%; left: 10%;
    animation-delay: 0s;
}
.hero__orb--2 {
    width: 8px; height: 8px;
    background: var(--accent-2);
    box-shadow: 0 0 16px var(--accent-2);
    top: 60%; right: 15%;
    animation-delay: 2s;
}
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

.hero__inner {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
}

.hero__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(74,222,128,0.08);
    border: 1px solid rgba(74,222,128,0.2);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.78rem;
    padding: 0.4rem 1rem;
    border-radius: 50px;
    margin-bottom: 1.5rem;
    letter-spacing: 0.05em;
}
.hero__badge-dot {
    width: 7px; height: 7px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse 2s ease infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(74,222,128,0.5); }
    50% { opacity: 0.7; box-shadow: 0 0 0 5px rgba(74,222,128,0); }
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800;
    line-height: 1;
    letter-spacing: -0.03em;
    display: flex;
    flex-direction: column;
    margin-bottom: 1.25rem;
}
.hero__title-line { color: var(--white); display: block; }
.hero__title-line--accent {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__role {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}
.hero__role-label {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--text-muted);
}

.typewriter { color: var(--accent-2); }
.cursor {
    color: var(--accent);
    animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero__desc {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 500px;
    margin-bottom: 2.5rem;
    line-height: 1.75;
}

.hero__actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.hero__stats {
    display: flex;
    gap: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}
.hero__stat { display: flex; flex-direction: column; }
.hero__stat-value {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}
.hero__stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 0.3rem;
    font-family: var(--font-mono);
}

/* Hero Card */
.hero__visual { display: flex; justify-content: flex-end; }
.hero__card {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    width: 100%;
    max-width: 480px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.5), 0 0 0 1px rgba(74,222,128,0.06);
    position: relative;
}
.hero__card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
}
.hero__card-header {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.85rem 1.25rem;
    background: rgba(255,255,255,0.02);
    border-bottom: 1px solid var(--border);
}
.hero__card-dot { width: 10px; height: 10px; border-radius: 50%; }
.hero__card-title {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}
.hero__card-body { padding: 1.5rem 1.75rem; }
.hero__code {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.9;
    color: var(--text-muted);
    white-space: pre;
    overflow-x: auto;
}
.code-keyword { color: #c792ea; }
.code-class    { color: #82aaff; }
.code-var      { color: #f07178; }
.code-str      { color: #c3e88d; }
.code-fn       { color: #82aaff; }

.hero__scroll {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}
.hero__scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   ABOUT
   ============================================ */
.about { background: var(--bg); }

.about__inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
    margin-top: 1rem;
}

.about__para {
    color: var(--text-muted);
    font-size: 1.025rem;
    margin-bottom: 1.25rem;
    line-height: 1.8;
}

.about__pills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 2rem;
}

.pill {
    background: rgba(74,222,128,0.07);
    border: 1px solid rgba(74,222,128,0.15);
    color: var(--accent);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.35rem 0.85rem;
    border-radius: 6px;
    letter-spacing: 0.05em;
}

.about__cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.about__card {
    padding: 1.75rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    transition: var(--transition);
}
.about__card:hover {
    transform: translateX(4px);
    border-color: rgba(74,222,128,0.2);
}
.about__card--main { background: rgba(74,222,128,0.04); }
.about__card--alt  { background: rgba(34,211,238,0.04); }
.about__card--dark { background: var(--bg-2); }

.about__card-icon { font-size: 1.5rem; margin-bottom: 0.75rem; }
.about__card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.5rem;
}
.about__card p { color: var(--text-muted); font-size: 0.9rem; line-height: 1.6; }

/* ============================================
   PROJECTS
   ============================================ */
.projects { background: var(--bg-2); }

.projects__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 1.5rem;
}

.project-card {
    position: relative;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
}
.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}
.project-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.12); }
.project-card:hover::before { transform: scaleX(1); }

.project-card__glow {
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 50% 0%, var(--accent), transparent 60%);
    opacity: 0;
    transition: opacity 0.4s;
    pointer-events: none;
}
.project-card:hover .project-card__glow { opacity: 0.05; }

.project-card__icon {
    font-size: 2.25rem;
    margin-bottom: 1.25rem;
    display: block;
}

.project-card__short {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 0.4rem;
}

.project-card__title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.project-card__desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.project-card__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.07);
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    letter-spacing: 0.04em;
    transition: 0.2s;
}
.project-card:hover .tag {
    border-color: rgba(255,255,255,0.12);
    color: var(--text);
}

/* ============================================
   SKILLS
   ============================================ */
.skills { background: var(--bg); }

.skills__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.skills__group {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: var(--transition);
}
.skills__group:hover { border-color: rgba(74,222,128,0.2); }

.skills__category {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.skills__list { display: flex; flex-direction: column; gap: 0.5rem; }
.skills__item {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: color 0.2s;
}
.skills__item:hover { color: var(--text); }
.skills__dot {
    width: 5px; height: 5px;
    background: var(--accent);
    border-radius: 50%;
    flex-shrink: 0;
    opacity: 0.6;
}

.skills__bar-section {
    background: var(--bg-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
}
.skills__bar-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 2rem;
}
.skills__bars { display: flex; flex-direction: column; gap: 1.25rem; }

.skill-bar {}
.skill-bar__label {
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}
.skill-bar__track {
    height: 5px;
    background: rgba(255,255,255,0.05);
    border-radius: 3px;
    overflow: hidden;
}
.skill-bar__fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    border-radius: 3px;
    transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    background: var(--bg-2);
    position: relative;
    overflow: hidden;
}
.contact::before {
    content: '';
    position: absolute;
    top: -200px; right: -200px;
    width: 600px; height: 600px;
    background: radial-gradient(circle, rgba(74,222,128,0.06), transparent 70%);
    pointer-events: none;
}

.contact__inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 5rem;
    align-items: start;
}

.contact__desc {
    color: var(--text-muted);
    font-size: 1.025rem;
    margin-bottom: 2.5rem;
    line-height: 1.75;
}

.contact__links { display: flex; flex-direction: column; gap: 1rem; }
.contact__link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}
.contact__link:hover {
    border-color: rgba(74,222,128,0.2);
    color: var(--white);
    transform: translateX(4px);
}
.contact__link-icon { width: 20px; text-align: center; flex-shrink: 0; }

/* Form */
.contact__form-wrap {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
}
.contact__form { display: flex; flex-direction: column; gap: 1.25rem; }

.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.form-group input,
.form-group textarea {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.85rem 1rem;
    color: var(--text);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
    resize: none;
    outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(124,132,156,0.5); }
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    background: rgba(74,222,128,0.03);
    box-shadow: 0 0 0 3px rgba(74,222,128,0.08);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: 2.5rem;
    text-align: center;
}
.footer__inner { display: flex; flex-direction: column; align-items: center; gap: 0.5rem; }
.footer__logo {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 0.25rem;
}
.footer__copy { color: var(--text-muted); font-size: 0.875rem; }
.footer__sub {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    color: rgba(124,132,156,0.5);
    letter-spacing: 0.05em;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 900px) {
    .hero__inner { grid-template-columns: 1fr; }
    .hero__visual { display: none; }
    .about__inner { grid-template-columns: 1fr; gap: 3rem; }
    .contact__inner { grid-template-columns: 1fr; gap: 3rem; }
    .nav__links { display: none; }
    .nav__cta { display: none; }
    .nav__hamburger { display: flex; }
}

@media (max-width: 600px) {
    .hero { padding: 6rem 1.25rem 4rem; }
    .container { padding: 0 1.25rem; }
    section { padding: 5rem 0; }
    .projects__grid { grid-template-columns: 1fr; }
    .hero__stats { gap: 1.25rem; }
    .contact__form-wrap { padding: 1.5rem; }
}