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

:root {
    --bg0:    #0a0a0a;
    --bg1:    #111111;
    --card:   #141414;
    --card-h: #191919;
    --border: #1f1f1f;
    --border-h: #2e2e2e;
    --orange: #f97316;
    --orange-d: #d9620f;
    --white:  #f5f5f5;
    --t1:     #f5f5f5;
    --t2:     #808080;
    --t3:     #383838;
    --r:      10px;
    --ease:   .3s ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg0);
    color: var(--t1);
    line-height: 1.7;
    overflow-x: hidden;
}

a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.accent { color: var(--orange); }

/* =============================================
   NAVBAR
   ============================================= */
.nav {
    position: fixed;
    inset: 0 0 auto 0;
    z-index: 200;
    padding: 1.25rem 0;
    transition: background var(--ease), box-shadow var(--ease);
}

.nav.solid {
    background: rgba(10,10,10,.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 1px 0 var(--border);
}

.nav__inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__logo {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--orange);
}

.nav__links {
    display: flex;
    gap: 2.25rem;
}

.nav__links a {
    font-size: .88rem;
    font-weight: 500;
    color: var(--t2);
    position: relative;
    transition: color var(--ease);
}

.nav__links a::after {
    content: '';
    position: absolute;
    left: 0; bottom: -3px;
    width: 0; height: 2px;
    background: var(--orange);
    border-radius: 2px;
    transition: width var(--ease);
}

.nav__links a:hover,
.nav__links a.active { color: var(--white); }

.nav__links a:hover::after,
.nav__links a.active::after { width: 100%; }

/* Burger */
.nav__right {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: .35rem;
}

.lang-btn {
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .08em;
    color: var(--t2);
    transition: color var(--ease);
    padding: .15rem 0;
}

.lang-btn:hover  { color: var(--white); }
.lang-active     { color: var(--orange); }

.lang-sep {
    color: var(--t3);
    font-weight: 300;
    font-size: .75rem;
    user-select: none;
}

.nav__burger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 4px;
}

.nav__burger span {
    display: block;
    width: 22px; height: 2px;
    background: var(--t2);
    border-radius: 2px;
    transition: transform var(--ease), opacity var(--ease);
}

.nav__burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger.open span:nth-child(2) { opacity: 0; }
.nav__burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =============================================
   HERO
   ============================================= */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    border-bottom: 1px solid var(--border);
}

.hero__inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 6rem 1.5rem 5rem;
}

/* Entrance animations */
.anim-1 { opacity: 0; animation: fadeUp .55s ease .1s  forwards; }
.anim-2 { opacity: 0; animation: fadeUp .6s  ease .28s forwards; }
.anim-3 { opacity: 0; animation: fadeUp .55s ease .48s forwards; }
.anim-4 { opacity: 0; animation: fadeUp .55s ease .62s forwards; }
.anim-5 { opacity: 0; animation: fadeUp .55s ease .78s forwards; }
.anim-6 { opacity: 0; animation: fadeIn .7s  ease 1.3s forwards; }

.hero__greeting {
    font-size: .95rem;
    font-weight: 500;
    color: var(--orange);
    letter-spacing: .1em;
    text-transform: uppercase;
    margin-bottom: .75rem;
}

.hero__name {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -.02em;
    color: var(--white);
    margin-bottom: .75rem;
}

.hero__role {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--t2);
    margin-bottom: 1.5rem;
    min-height: 2.1rem;
}

.hero__role-typed {
    font-weight: 600;
    color: var(--orange);
}

.hero__cursor {
    color: var(--orange);
    font-weight: 300;
    animation: blink .7s step-end infinite;
}

.hero__desc {
    max-width: 520px;
    color: var(--t2);
    font-size: 1.02rem;
    line-height: 1.85;
    margin-bottom: 2.5rem;
}

.hero__cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.hero__scroll-hint {
    position: absolute;
    bottom: 2.5rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-dot {
    width: 22px; height: 36px;
    border: 2px solid var(--border-h);
    border-radius: 11px;
    position: relative;
}

.scroll-dot::before {
    content: '';
    position: absolute;
    top: 5px; left: 50%;
    transform: translateX(-50%);
    width: 3px; height: 7px;
    background: var(--orange);
    border-radius: 2px;
    animation: scrollPulse 1.6s ease infinite;
}

/* =============================================
   BUTTONS
   ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .72rem 1.65rem;
    border-radius: 8px;
    font-size: .9rem;
    font-weight: 600;
    transition: background var(--ease), color var(--ease),
                border-color var(--ease), transform var(--ease);
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--orange);
    color: #fff;
    border-color: var(--orange);
}

.btn-primary:hover {
    background: var(--orange-d);
    border-color: var(--orange-d);
    transform: translateY(-2px);
}

.btn-outline {
    background: transparent;
    border-color: var(--border-h);
    color: var(--t2);
}

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

.btn-full { width: 100%; justify-content: center; }

/* =============================================
   SECTIONS
   ============================================= */
.section     { padding: 7rem 0; }
.section-alt { background: var(--bg1); }

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.3rem);
    font-weight: 700;
    color: var(--white);
    text-align: center;
    margin-bottom: 3.5rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 38px; height: 3px;
    background: var(--orange);
    border-radius: 3px;
    margin: .65rem auto 0;
}

/* =============================================
   ABOUT
   ============================================= */
.about-grid {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 4rem;
    align-items: center;
}

.about-avatar {
    display: flex;
    justify-content: center;
}

.avatar-ring {
    width: 200px; height: 200px;
    border-radius: 50%;
    border: 3px solid var(--orange);
    background: var(--bg0);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-fill span {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--orange);
    user-select: none;
}

/* alias — avatar-fill is the ring itself now */
.avatar-fill {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.about-subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 1rem;
}

.about-text {
    color: var(--t2);
    line-height: 1.9;
    margin-bottom: .9rem;
}

.about-stats {
    display: flex;
    gap: 2.5rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.stat-num {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--orange);
}

.stat-num::after { content: '+'; font-size: 1.35rem; }

.stat-label {
    font-size: .8rem;
    color: var(--t2);
    margin-top: .1rem;
    display: block;
}

/* =============================================
   SKILLS
   ============================================= */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 1.25rem;
}

.skill-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 1.65rem;
    transition: background var(--ease), border-color var(--ease), transform var(--ease);
}

.skill-card:hover {
    background: var(--card-h);
    border-color: var(--border-h);
    transform: translateY(-4px);
}

.skill-icon {
    font-size: 1.7rem;
    color: var(--orange);
    margin-bottom: .9rem;
    line-height: 1;
}

.skill-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: .9rem;
}

/* =============================================
   TAGS
   ============================================= */
.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: .4rem;
}

.tag {
    padding: .27rem .7rem;
    border-radius: 20px;
    font-size: .77rem;
    font-weight: 500;
    background: rgba(255,255,255,.05);
    color: var(--t2);
    border: 1px solid var(--border);
    transition: background var(--ease), color var(--ease);
}

.tag-accent {
    background: rgba(249,115,22,.1);
    color: var(--orange);
    border-color: rgba(249,115,22,.25);
}

/* =============================================
   PROJECTS
   ============================================= */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
}

.project-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 1.65rem;
    display: flex;
    flex-direction: column;
    gap: .9rem;
    position: relative;
    overflow: hidden;
    transition: transform var(--ease), border-color var(--ease), box-shadow var(--ease);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: var(--orange);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--ease);
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--border-h);
    box-shadow: 0 16px 40px rgba(0,0,0,.5);
}

.project-card:hover::before { transform: scaleX(1); }

.project-card-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.project-num {
    font-size: 2.1rem;
    font-weight: 700;
    line-height: 1;
    color: var(--orange);
    opacity: .2;
    transition: opacity var(--ease);
}

.project-card:hover .project-num { opacity: .6; }

.project-links {
    display: flex;
    gap: .7rem;
}

.link-icon {
    color: var(--t3);
    display: flex;
    align-items: center;
    transition: color var(--ease), transform var(--ease);
}

.link-icon:hover {
    color: var(--white);
    transform: translateY(-2px);
}

.project-title {
    font-size: 1.08rem;
    font-weight: 600;
    color: var(--white);
}

.project-desc {
    color: var(--t2);
    font-size: .88rem;
    line-height: 1.78;
    flex: 1;
}

.project-tags { margin-top: auto; }

.projects-note {
    margin-top: 2.5rem;
    text-align: center;
    font-size: .85rem;
    color: var(--t3);
    font-style: italic;
}

/* =============================================
   CONTACT
   ============================================= */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 4rem;
    align-items: start;
}

.contact-subtitle {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 1rem;
}

.contact-text {
    color: var(--t2);
    line-height: 1.9;
    margin-bottom: 2rem;
}

.socials {
    display: flex;
    flex-direction: column;
    gap: .9rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: .7rem;
    color: var(--t2);
    font-size: .9rem;
    transition: color var(--ease), gap var(--ease);
}

.social-link:hover { color: var(--white); gap: .95rem; }

/* Form */
.contact-form {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--r);
    padding: 2rem;
}

.field { margin-bottom: 1.15rem; }

.field label {
    display: block;
    font-size: .8rem;
    font-weight: 500;
    color: var(--t2);
    margin-bottom: .45rem;
    letter-spacing: .02em;
}

.field input,
.field textarea {
    width: 100%;
    background: var(--bg0);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: .7rem 1rem;
    color: var(--white);
    font-family: inherit;
    font-size: .92rem;
    outline: none;
    transition: border-color var(--ease);
    resize: vertical;
}

.field input:focus,
.field textarea:focus {
    border-color: var(--orange);
}

.field input::placeholder,
.field textarea::placeholder { color: var(--t3); }

.form-msg {
    margin-top: .9rem;
    font-size: .85rem;
    text-align: center;
    min-height: 1.4rem;
}

.form-msg.ok  { color: #22c55e; }
.form-msg.err { color: #f87171; }

/* =============================================
   FOOTER
   ============================================= */
.footer {
    padding: 1.75rem 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--t3);
    font-size: .82rem;
}

/* =============================================
   REVEAL ON SCROLL
   ============================================= */
.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: opacity .6s ease, transform .6s ease;
}

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

/* =============================================
   KEYFRAMES
   ============================================= */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes blink {
    0%, 49%  { opacity: 1; }
    50%, 100% { opacity: 0; }
}

@keyframes scrollPulse {
    0%   { transform: translateX(-50%) translateY(0);    opacity: 1; }
    80%  { transform: translateX(-50%) translateY(12px); opacity: 0; }
    100% { transform: translateX(-50%) translateY(0);    opacity: 0; }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 860px) {
    .about-grid,
    .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .about-avatar  { order: -1; }
}

@media (max-width: 768px) {
    .nav__links {
        display: none;
        position: fixed;
        top: 64px; left: 0; right: 0;
        background: rgba(10,10,10,.98);
        flex-direction: column;
        align-items: center;
        padding: 2rem 0;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border);
    }

    .nav__links.open { display: flex; }
    .nav__burger     { display: flex; }
    .lang-btn        { font-size: .72rem; }

    .section         { padding: 5rem 0; }
    .section-title   { margin-bottom: 2.5rem; }
    .about-stats     { gap: 1.5rem; }
}

@media (max-width: 500px) {
    .projects-grid { grid-template-columns: 1fr; }
    .hero__cta     { flex-direction: column; }
    .btn           { justify-content: center; text-align: center; }
}