/* ─────────────────────────────────────────────────────────────
   style.css — Ioannis Rigadopoulos Portfolio
   ───────────────────────────────────────────────────────────── */

:root {
    --bg:        #070b0f;
    --surface:   #0d1318;
    --surface2:  #111820;
    --border:    #1e2d3d;
    --text:      #cdd9e5;
    --muted:     #5c7080;
    --accent:    #4fc3f7;
    --green:     #43d9ad;
    --orange:    #e5c07b;
    --red:       #e06c75;
    --glow:      rgba(79, 195, 247, 0.15);
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'JetBrains Mono', monospace;
    line-height: 1.7;
    overflow-x: hidden;
}

/* ─── BOOT SCREEN ─────────────────────────────────────────── */
#boot {
    position: fixed; inset: 0;
    background: var(--bg);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 0.5rem;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}
#boot.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

#boot-log {
    font-size: 0.78rem;
    color: var(--green);
    width: min(600px, 90vw);
    max-height: 70vh;
    overflow: hidden;
}
#boot-log .line { opacity: 0; animation: lineIn 0.05s forwards; }
#boot-log .ok   { color: var(--green); }
#boot-log .warn { color: var(--orange); }
#boot-log .err  { color: var(--red); }

#boot-bar-wrap {
    width: min(600px, 90vw);
    height: 2px;
    background: var(--border);
    margin-top: 1rem;
    border-radius: 2px;
}
#boot-bar {
    height: 100%;
    width: 0%;
    background: var(--green);
    transition: width 0.05s linear;
    box-shadow: 0 0 8px var(--green);
}

@keyframes lineIn { to { opacity: 1; } }

/* ─── SCANLINE OVERLAY ────────────────────────────────────── */
body::before {
    content: '';
    position: fixed; inset: 0;
    pointer-events: none;
    background: repeating-linear-gradient(
        to bottom,
        transparent 0px,
        transparent 3px,
        rgba(0,0,0,0.07) 3px,
        rgba(0,0,0,0.07) 4px
    );
    z-index: 100;
}

/* ─── CURSOR ──────────────────────────────────────────────── */
.cursor {
    display: inline-block;
    width: 0.5em; height: 1em;
    background: var(--accent);
    margin-left: 3px;
    vertical-align: text-bottom;
    animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

/* ─── NAV ─────────────────────────────────────────────────── */
nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 500;
    display: flex;
    justify-content: center;
    gap: 0;
    padding: 0.6rem 1rem;
    background: rgba(7,11,15,0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    opacity: 0;
    transform: translateY(-100%);
    transition: opacity 0.5s, transform 0.5s;
}
nav.visible { opacity: 1; transform: translateY(0); }

nav a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.3rem 0.9rem;
    border-radius: 3px;
    transition: color 0.2s, background 0.2s;
}
nav a:hover, nav a.active {
    color: var(--accent);
    background: var(--glow);
}

/* ─── MAIN LAYOUT ─────────────────────────────────────────── */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 5rem 2rem 4rem;
}

/* ─── HEADER ──────────────────────────────────────────────── */
header {
    padding: 5rem 0 4rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 4rem;
}

.prompt-line {
    font-size: 0.85rem;
    color: var(--muted);
    margin-bottom: 0.8rem;
    opacity: 0;
    animation: fadeUp 0.5s 0.3s forwards;
}
.prompt-line span { color: var(--green); }

h1 {
    font-family: 'Syne', sans-serif;
    font-size: clamp(2.4rem, 6vw, 4rem);
    font-weight: 800;
    color: var(--text);
    line-height: 1.05;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
    opacity: 0;
    animation: fadeUp 0.5s 0.5s forwards;
    position: relative;
    display: inline-block;
}

/* Glitch */
h1::before, h1::after {
    content: attr(data-text);
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
}
h1::before {
    color: var(--red);
    clip-path: polygon(0 30%, 100% 30%, 100% 50%, 0 50%);
    transform: translateX(-3px);
    opacity: 0;
}
h1::after {
    color: var(--accent);
    clip-path: polygon(0 55%, 100% 55%, 100% 75%, 0 75%);
    transform: translateX(3px);
    opacity: 0;
}
h1:hover::before { animation: glitch-a 0.4s steps(1) forwards; }
h1:hover::after  { animation: glitch-b 0.4s steps(1) forwards; }

@keyframes glitch-a {
    0%,100% { opacity:0; transform: translateX(-3px); }
    20%,60% { opacity:0.7; transform: translateX(-5px) skewX(-2deg); }
    40%,80% { opacity:0; transform: translateX(3px); }
}
@keyframes glitch-b {
    0%,100% { opacity:0; transform: translateX(3px); }
    30%,70% { opacity:0.7; transform: translateX(5px) skewX(2deg); }
    50%,90% { opacity:0; transform: translateX(-3px); }
}

.subtitle {
    font-size: 1rem;
    color: var(--accent);
    margin-bottom: 1rem;
    opacity: 0;
    animation: fadeUp 0.5s 0.7s forwards;
}
.subtitle::before { content: "// "; color: var(--muted); }

/* ─── STATUS BADGE ────────────────────────────────────────── */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0.3rem 0.8rem;
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeUp 0.5s 0.85s forwards;
}
.status-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--orange);
    box-shadow: 0 0 6px var(--orange);
    animation: pulse 2s ease-in-out infinite;
    flex-shrink: 0;
}
.status-company { color: var(--orange); }

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--orange); }
    50%       { opacity: 0.6; box-shadow: 0 0 14px var(--orange); }
}

.contact-links {
    display: flex;
    gap: 0.5rem 1.5rem;
    flex-wrap: wrap;
    opacity: 0;
    animation: fadeUp 0.5s 0.9s forwards;
}
.contact-links a {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.85rem;
    display: flex; align-items: center; gap: 0.4rem;
    transition: color 0.2s;
}
.contact-links a::before { content: attr(data-icon); font-size: 0.8rem; }
.contact-links a:hover { color: var(--accent); }
.contact-links .location { color: var(--muted); font-size: 0.85rem; }
.contact-links .location::before { content: "📍 "; }

/* ─── SECTIONS ────────────────────────────────────────────── */
section {
    margin-bottom: 4.5rem;
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
section.in-view { opacity: 1; transform: translateY(0); }

.section-label {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}
.section-label h3 {
    font-family: 'Syne', sans-serif;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--muted);
    white-space: nowrap;
}
.section-label::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--border);
}
.section-num {
    color: var(--green);
    font-size: 0.7rem;
    margin-right: -0.5rem;
}

/* ─── ABOUT ───────────────────────────────────────────────── */
.about-text {
    font-size: 0.95rem;
    color: var(--text);
    line-height: 2;
    border-left: 2px solid var(--accent);
    padding-left: 1.5rem;
    background: linear-gradient(90deg, var(--glow), transparent);
    margin-bottom: 1.2rem;
}

.currently {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.7rem 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 4px;
    margin-top: 0.8rem;
}
.currently-prompt { color: var(--green); flex-shrink: 0; }
.currently-text   { color: var(--accent); }
.cursor-sm {
    color: var(--accent);
    animation: blink 1s step-end infinite;
    font-size: 0.9rem;
    line-height: 1;
}

/* ─── COPY EMAIL BUTTON ───────────────────────────────────── */
.email-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.copy-btn {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 3px;
    color: var(--muted);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    padding: 0.15rem 0.45rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: color 0.2s, border-color 0.2s, background 0.2s;
    white-space: nowrap;
}
.copy-btn:hover {
    color: var(--green);
    border-color: var(--green);
    background: rgba(67, 217, 173, 0.07);
}
.copy-btn.copied {
    color: var(--green);
    border-color: var(--green);
}
.copy-icon { font-size: 0.85rem; }

/* ─── STATUS BADGE ────────────────────────────────────────── */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.78rem;
    color: var(--muted);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0.3rem 0.8rem;
    margin-bottom: 1.5rem;
}
.status-dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--orange);
    box-shadow: 0 0 6px var(--orange);
    animation: pulse 2s ease-in-out infinite;
    flex-shrink: 0;
}
.status-company { color: var(--orange); }

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--orange); }
    50%       { opacity: 0.6; box-shadow: 0 0 12px var(--orange); }
}

/* ─── LANGUAGES ───────────────────────────────────────────── */
.lang-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}
.lang-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    transition: border-color 0.25s, transform 0.25s;
}
.lang-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}
.lang-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.lang-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}
.lang-level {
    font-size: 0.72rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-weight: 600;
    letter-spacing: 0.05em;
}
.lang-level.native {
    background: rgba(67, 217, 173, 0.1);
    color: var(--green);
    border: 1px solid rgba(67, 217, 173, 0.3);
}
.lang-level.c2 {
    background: rgba(79, 195, 247, 0.1);
    color: var(--accent);
    border: 1px solid rgba(79, 195, 247, 0.3);
}
.lang-bar-wrap {
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}
.lang-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--green));
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}
.lang-card.in-bar .lang-bar { transform: scaleX(1); }
.lang-cert {
    font-size: 0.75rem;
    color: var(--muted);
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
    line-height: 1.5;
}
.lang-cert-icon { color: var(--green); flex-shrink: 0; }
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 1.5rem;
}
.skill-category {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1.2rem;
    transition: border-color 0.3s, transform 0.3s;
    position: relative;
    overflow: hidden;
}
.skill-category::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--green));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}
.skill-category:hover { border-color: var(--accent); transform: translateY(-3px); }
.skill-category:hover::before { transform: scaleX(1); }

.skill-category h4 {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--muted);
    margin-bottom: 1rem;
}
.tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.tag {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 3px;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    color: var(--muted);
    cursor: default;
    transition: all 0.2s;
}
.tag:hover {
    border-color: var(--green);
    color: var(--green);
    background: rgba(67, 217, 173, 0.07);
    transform: scale(1.05);
}

/* ─── EXPERIENCE / EDUCATION CARDS ───────────────────────── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 0.8rem;
    overflow: hidden;
    transition: border-color 0.3s;
    position: relative;
}
.card::before {
    content: '';
    position: absolute;
    left: 0; top: 0; bottom: 0;
    width: 3px;
    background: var(--accent);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.3s ease;
}
.card.active::before { transform: scaleY(1); }
.card:hover { border-color: rgba(79, 195, 247, 0.35); }

.card-header {
    padding: 1.2rem 1.4rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    gap: 1rem;
    user-select: none;
}
.card-header:hover .role-title { color: var(--accent); }

.role-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text);
    transition: color 0.2s;
}
.company {
    font-size: 0.82rem;
    color: var(--muted);
    margin-top: 0.2rem;
}
.company::before { content: "@ "; color: var(--green); }

.card-meta {
    display: flex; align-items: center; gap: 1rem;
    flex-shrink: 0;
}
.date-location {
    text-align: right;
    font-size: 0.75rem;
    color: var(--muted);
    line-height: 1.5;
}

.toggle-btn {
    width: 22px; height: 22px;
    border: 1px solid var(--border);
    border-radius: 3px;
    display: flex; align-items: center; justify-content: center;
    color: var(--green);
    font-size: 0.9rem;
    font-weight: 700;
    transition: background 0.2s, border-color 0.2s;
    flex-shrink: 0;
}
.card.active .toggle-btn {
    background: rgba(67, 217, 173, 0.1);
    border-color: var(--green);
}
.toggle-btn .icon { transition: transform 0.3s; display: block; }
.card.active .toggle-btn .icon { transform: rotate(45deg); }

.card-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.card.active .card-body { max-height: 600px; }

.card-body-inner {
    padding: 0 1.4rem 1.4rem 2.2rem;
    border-top: 1px solid var(--border);
}
.card-body ul { list-style: none; padding: 1rem 0 0; }
.card-body li {
    font-size: 0.85rem;
    color: var(--muted);
    padding: 0.45rem 0;
    border-bottom: 1px dashed rgba(30,45,61,0.6);
    display: flex; gap: 0.7rem;
    line-height: 1.6;
}
.card-body li:last-child { border-bottom: none; }
.card-body li::before {
    content: "›";
    color: var(--green);
    flex-shrink: 0;
    margin-top: 0.05rem;
}

/* ─── LANGUAGES ───────────────────────────────────────────── */
.lang-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}
.lang-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    transition: border-color 0.25s, transform 0.25s;
}
.lang-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}
.lang-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.lang-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
}
.lang-level {
    font-size: 0.72rem;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-weight: 600;
    letter-spacing: 0.05em;
}
.lang-level.native {
    background: rgba(67, 217, 173, 0.1);
    color: var(--green);
    border: 1px solid rgba(67, 217, 173, 0.3);
}
.lang-level.c2 {
    background: rgba(79, 195, 247, 0.1);
    color: var(--accent);
    border: 1px solid rgba(79, 195, 247, 0.3);
}
.lang-bar-wrap {
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}
.lang-bar {
    height: 100%;
    width: var(--bar-width, 0%);
    background: linear-gradient(90deg, var(--accent), var(--green));
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 1s cubic-bezier(0.4, 0, 0.2, 1);
}
.lang-card.in-bar .lang-bar { transform: scaleX(1); }
.lang-cert {
    font-size: 0.75rem;
    color: var(--muted);
    display: flex;
    align-items: flex-start;
    gap: 0.4rem;
    line-height: 1.5;
}
.lang-cert-icon { color: var(--green); flex-shrink: 0; }

/* ─── CERTIFICATIONS ──────────────────────────────────────── */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 0.8rem;
}
.cert-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem 1.2rem;
    display: flex; flex-direction: column; gap: 0.3rem;
    transition: border-color 0.25s, transform 0.25s;
    cursor: default;
}
.cert-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    background: var(--surface2);
}
.cert-card strong {
    font-size: 0.85rem;
    color: var(--text);
    line-height: 1.4;
}
.cert-card .issuer { font-size: 0.75rem; color: var(--green); }
.cert-card .cred   { font-size: 0.72rem; color: var(--muted); font-style: italic; }

/* ─── FOOTER ──────────────────────────────────────────────── */
footer {
    border-top: 1px solid var(--border);
    padding: 2rem 0;
    margin-top: 2rem;
    font-size: 0.75rem;
    color: var(--muted);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}
footer .green { color: var(--green); }

/* ─── SCROLL PROGRESS BAR ─────────────────────────────────── */
#progress {
    position: fixed;
    top: 0; left: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--green), var(--accent));
    z-index: 999;
    width: 0%;
    transition: width 0.1s linear;
    box-shadow: 0 0 6px var(--accent);
}

.cert-link {
    text-decoration: none;
    color: inherit; /* Inherits whatever color your strong tag used */
}

.cert-link:hover strong {
    text-decoration: underline; /* Optional: adds a neat hover indicator */
    color: #64ffda; /* Replace with your specific primary accent color if needed */
}

/* ─── ANIMATIONS ──────────────────────────────────────────── */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ─── RESPONSIVE ──────────────────────────────────────────── */
@media (max-width: 600px) {
    main { padding: 4.5rem 1.2rem 3rem; }
    .card-header { flex-wrap: wrap; }
    .card-meta { width: 100%; justify-content: space-between; }
    .date-location { text-align: left; }
    h1 { font-size: 2rem; }
}