/* ============================================================
   Service: components.css
   Reusable UI components: navbar, buttons, cards, modals,
   skills, chatbot, live preview, certifications
   ============================================================ */

/* ── Navbar ─────────────────────────────────────────────────── */
#navbar {
    background: var(--navbar-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}
#header-logo path, #footer-logo path {
    stroke: var(--text-primary); stroke-width: 5; fill: none;
    transition: stroke 0.3s ease, filter 0.3s ease;
}
#header-logo:hover path, #footer-logo:hover path { stroke: var(--accent-color); filter: drop-shadow(0 0 8px var(--accent-color)); }

/* ── Sidebar ────────────────────────────────────────────────── */
#sidebar-menu { transition: transform 0.3s ease-in-out; }
#sidebar-menu.open { transform: translateX(0) !important; }

/* ── Glass Card ─────────────────────────────────────────────── */
/* ── Glass Card ─────────────────────────────────────────────── */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(16px) saturate(120%);
    -webkit-backdrop-filter: blur(16px) saturate(120%);
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);
    position: relative; overflow: hidden;
    border-radius: var(--radius-card);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* ── Download CV Button ─────────────────────────────────────── */
.download-cv-btn {
    display: inline-flex; align-items: center; gap: 0.75rem;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-dark-color) 50%, var(--accent-color) 100%);
    background-size: 200% 200%;
    color: #000; font-weight: 700; font-size: 1.05rem;
    border-radius: 9999px; text-decoration: none;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 8px 32px rgba(0,191,255,0.4), 0 0 60px rgba(0,191,255,0.2), inset 0 1px 0 rgba(255,255,255,0.3);
    position: relative; overflow: hidden;
    animation: gradient-flow 3s ease infinite;
    border: 2px solid rgba(255, 255, 255, 0.2);
}
.download-cv-btn:hover { transform: translateY(-3px) scale(1.04); box-shadow: 0 12px 48px rgba(0,191,255,0.6), 0 0 80px rgba(0,191,255,0.3); }

/* ── Tag Pills ──────────────────────────────────────────────── */
.tag-pill {
    display: inline-block; font-size: 0.75rem;
    padding: 0.25rem 0.75rem; border-radius: 9999px;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    background: rgba(15, 23, 42, 0.4);
    transition: all 0.3s ease;
    font-weight: 500;
}
.project-card:hover .tag-pill { background: rgba(0,210,255,0.1); border-color: rgba(0,210,255,0.25); color: var(--accent-color); }

/* ── Project Buttons ────────────────────────────────────────── */
.project-button {
    display: inline-flex; align-items: center; gap: 0.5rem;
    padding: 0.55rem 1.2rem; border-radius: 9999px;
    font-size: 0.85rem; font-weight: 600;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    text-decoration: none;
}
.project-button.primary { background: linear-gradient(135deg, var(--accent-color), var(--accent-dark-color)); color: #05050f; }
.project-button.primary:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(0, 210, 255, 0.3); filter: brightness(1.1); }
.project-button.secondary {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}
.project-button.secondary:hover { background-color: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.25); transform: translateY(-2px); }

/* ── Project Cards ──────────────────────────────────────────── */
.project-card {
    position: relative;
    border-radius: var(--radius-card);
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.4s ease, border-color 0.4s ease;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    background: linear-gradient(185deg, rgba(15, 15, 35, 0.6) 0%, rgba(5, 5, 14, 0.4) 100%);
    border: 1px solid var(--border-color);
}
body.light-mode .project-card {
    background: linear-gradient(185deg, rgba(255, 255, 255, 0.8) 0%, rgba(240, 248, 255, 0.6) 100%);
}
.project-card::before {
    content: ''; position: absolute; inset: -1px;
    background: linear-gradient(135deg, transparent 30%, rgba(0,210,255,0.15) 50%, transparent 70%);
    border-radius: inherit; opacity: 0; transition: opacity 0.4s ease; z-index: -1;
}
.project-card:hover::before { opacity: 1; }
.project-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px rgba(0,0,0,0.3), var(--shadow-glow); border-color: rgba(0,210,255,0.35); }
.project-card:hover h3 { color: var(--accent-color); }

/* Featured card accent */
.featured-card { border-color: rgba(0,210,255,0.25); }
.featured-badge {
    position: absolute; top: 1rem; right: 1rem;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-secondary-color));
    color: #05050f; font-size: 0.68rem; font-weight: 700;
    padding: 0.25rem 0.75rem; border-radius: 9999px;
    display: flex; align-items: center; gap: 0.35rem;
    z-index: 2; letter-spacing: 0.05em;
    box-shadow: 0 4px 12px rgba(0, 210, 255, 0.25);
}

/* ── Live Preview ───────────────────────────────────────────── */
.project-live-preview {
    position: relative; width: 100%;
    aspect-ratio: 16 / 9; border-radius: 0.75rem;
    overflow: hidden; border: 1px solid var(--border-color);
    background: #05050f;
}
.live-badge {
    position: absolute; top: 0.5rem; right: 0.5rem;
    background: rgba(5, 5, 14, 0.85); backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 80, 80, 0.6);
    color: #ff5050; font-size: 0.68rem; font-weight: 700;
    padding: 0.25rem 0.65rem; border-radius: 9999px;
    display: flex; align-items: center; gap: 0.35rem;
    z-index: 3; letter-spacing: 0.06em;
    box-shadow: 0 4px 10px rgba(255, 80, 80, 0.2);
}
.live-dot {
    width: 6px; height: 6px; border-radius: 50%;
    background: #ff5050; animation: pulse-dot 1.4s infinite;
}
.iframe-scaler {
    width: 300%; height: 300%;
    transform: scale(0.3333); transform-origin: top left;
    pointer-events: none;
}
.project-iframe {
    width: 100%; height: 100%;
    border: none; display: block;
}
.project-thumb-wrap { width: 100%; aspect-ratio: 16/9; overflow: hidden; border-radius: 0.75rem; border: 1px solid var(--border-color); }
.project-thumbnail { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s cubic-bezier(0.25, 0.8, 0.25, 1), filter 0.3s ease; }
.project-card:hover .project-thumbnail { transform: scale(1.05); filter: brightness(1.05) contrast(1.05); }

/* ── Skills ─────────────────────────────────────────────────── */
.skills-category-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
    padding: 2rem;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.skills-category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3), var(--shadow-glow);
    border-color: rgba(0, 210, 255, 0.25);
}
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1.25rem;
}
.skill-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 0.85rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
}
body.light-mode .skill-card {
    background: rgba(15, 23, 42, 0.02);
}
.skill-card:hover {
    transform: translateY(-3px) scale(1.02);
    background: rgba(0, 210, 255, 0.06);
    border-color: rgba(0, 210, 255, 0.3);
}
.skill-icon-wrap {
    font-size: 1.5rem;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    transition: transform 0.3s ease;
}
.skill-card:hover .skill-icon-wrap {
    transform: scale(1.15) rotate(5deg);
}
.skill-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    min-width: 0;
}
.skill-header-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
}
.skill-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.skill-percentage {
    font-size: 0.75rem;
    font-family: "Roboto Mono", monospace;
    color: var(--text-secondary);
    font-weight: 500;
}
.skill-progress-container {
    width: 100%;
    height: 4px;
    background: var(--skill-track);
    border-radius: 99px;
    overflow: hidden;
    position: relative;
}
.skill-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary-color));
    width: 0%; /* Dynamic width animated in JS */
    border-radius: 99px;
    box-shadow: 0 0 8px rgba(0, 210, 255, 0.4);
}

/* ── Cert Cards ─────────────────────────────────────────────── */
.cert-card {
    display: flex; flex-direction: column;
    overflow: hidden; border-radius: 1rem;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.cert-card:hover { transform: translateY(-8px); box-shadow: 0 16px 40px rgba(0,191,255,0.15); }

.cert-image-wrap {
    position: relative; width: 100%;
    aspect-ratio: 4/3; overflow: hidden; background: #0a0a0a;
    flex-shrink: 0;
}
.cert-image { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.cert-card:hover .cert-image { transform: scale(1.04); }
.cert-image-fallback {
    width: 100%; height: 100%; display: flex; align-items: center; justify-content: center;
    font-size: 3rem; color: var(--accent-color); background: rgba(0,191,255,0.06);
}
.cert-image-overlay {
    position: absolute; inset: 0;
    background: rgba(0,0,0,0.6); display: flex; align-items: center; justify-content: center;
    opacity: 0; transition: opacity 0.3s ease;
}
.cert-card:hover .cert-image-overlay { opacity: 1; }
.cert-view-full {
    color: #fff; background: rgba(0,191,255,0.8);
    padding: 0.5rem 1rem; border-radius: 9999px;
    font-size: 0.8rem; font-weight: 600; text-decoration: none;
    display: flex; align-items: center; gap: 0.5rem;
    transition: background 0.2s;
}
.cert-view-full:hover { background: var(--accent-color); }
.cert-platform-badge {
    position: absolute; top: 0.6rem; left: 0.6rem;
    background: rgba(0,0,0,0.7); backdrop-filter: blur(6px);
    color: var(--accent-color); font-size: 0.65rem; font-weight: 700;
    padding: 0.2rem 0.5rem; border-radius: 9999px; letter-spacing: 0.06em;
    border: 1px solid rgba(0,191,255,0.3);
}

.cert-info { display: flex; flex-direction: column; gap: 0.6rem; padding: 1.25rem; }
.cert-issuer-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.4rem; }
.cert-issuer-name { font-size: 0.8rem; font-weight: 700; letter-spacing: 0.04em; text-transform: uppercase; }
.cert-date { font-size: 0.72rem; color: var(--text-secondary); font-family: "Roboto Mono", monospace; }
.cert-title { font-family: "Poppins", sans-serif; font-size: 1rem; font-weight: 600; color: var(--text-primary); line-height: 1.35; }
.cert-description { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.5; }
.cert-credential {
    display: flex; align-items: center; gap: 0.4rem;
    background: rgba(0,191,255,0.05); border: 1px solid rgba(0,191,255,0.15);
    padding: 0.35rem 0.65rem; border-radius: 0.4rem;
    flex-wrap: wrap;
}
.cert-credential i { color: var(--accent-color); font-size: 0.8rem; }
.cert-credential-label { font-size: 0.72rem; color: var(--text-secondary); }
.cert-credential-id { font-family: "Roboto Mono", monospace; font-size: 0.75rem; color: var(--accent-secondary-color); }

.cert-skills { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.cert-skill-pill { font-size: 0.65rem; padding: 0.15rem 0.5rem; border-radius: 9999px; border: 1px solid rgba(0,245,212,0.25); color: var(--accent-secondary-color); background: rgba(0,245,212,0.06); }

.cert-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 0.2rem; }
.cert-action-btn {
    display: inline-flex; align-items: center; gap: 0.4rem;
    padding: 0.4rem 0.85rem; border-radius: 9999px;
    font-size: 0.75rem; font-weight: 600; text-decoration: none;
    transition: all 0.2s ease;
}
.credly-btn { background: rgba(255,127,0,0.12); color: #ff7f00; border: 1px solid rgba(255,127,0,0.3); }
.credly-btn:hover { background: rgba(255,127,0,0.25); transform: translateY(-1px); }
.verify-btn { background: rgba(0,191,255,0.1); color: var(--accent-color); border: 1px solid rgba(0,191,255,0.3); }
.verify-btn:hover { background: rgba(0,191,255,0.22); transform: translateY(-1px); }
.coursera-btn { background: rgba(0,86,210,0.1); color: #0056D2; border: 1px solid rgba(0,86,210,0.3); }
body.dark .coursera-btn, .coursera-btn { color: #5ba4f5; border-color: rgba(91,164,245,0.3); background: rgba(91,164,245,0.08); }
.coursera-btn:hover { background: rgba(91,164,245,0.18); transform: translateY(-1px); }

/* ── Achievement Cards ──────────────────────────────────────── */
.achievement-card {
    display: flex; align-items: flex-start; gap: 1.25rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}
.achievement-card:hover { transform: translateY(-4px); box-shadow: 0 12px 32px rgba(0,191,255,0.1); }
.achievement-icon-wrap {
    flex-shrink: 0; width: 52px; height: 52px;
    border-radius: 0.75rem; display: flex; align-items: center; justify-content: center;
    border: 1px solid; font-size: 1.4rem;
}
.achievement-content { flex: 1; }
.achievement-title { font-family: "Poppins", sans-serif; font-size: 1rem; font-weight: 600; color: var(--text-primary); margin-bottom: 0.2rem; }
.achievement-subtitle { font-size: 0.82rem; font-weight: 600; color: var(--accent-secondary-color); }
.achievement-organizer { color: var(--text-secondary); font-weight: 400; }
.achievement-desc { font-size: 0.8rem; color: var(--text-secondary); margin-top: 0.4rem; line-height: 1.5; }
.achievement-date { font-size: 0.7rem; color: var(--text-secondary); font-family: "Roboto Mono", monospace; white-space: nowrap; }

/* ── Contact Button ─────────────────────────────────────────── */
.contact-button {
    position: relative; overflow: hidden; z-index: 1;
    color: var(--accent-color); border-color: var(--accent-color);
    transition: color 0.4s ease-in-out, opacity 0.3s;
    display: inline-flex; align-items: center; justify-content: center;
}
.contact-button::before {
    content: ''; position: absolute; inset: 0;
    background: var(--accent-color); transform: scaleX(0);
    transform-origin: left; transition: transform 0.4s ease-in-out; z-index: -1;
}
.contact-button:hover::before { transform: scaleX(1); }
.contact-button:hover { color: #0a1628; }
.contact-button .loader-icon { display: none; }
.contact-button.loading .btn-content { display: none; }
.contact-button.loading .loader-icon { display: flex; }

/* ── Toast ──────────────────────────────────────────────────── */
#form-toast {
    position: fixed; bottom: 2rem; right: 2rem;
    padding: 1rem 1.5rem; border-radius: 0.75rem;
    display: flex; align-items: center; gap: 0.75rem;
    font-size: 0.9rem; font-weight: 500;
    background: var(--card-bg); border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
    transform: translateY(100%); opacity: 0; transition: all 0.3s ease;
    z-index: 9999; max-width: min(90vw, 400px);
}
#form-toast.show { transform: translateY(0); opacity: 1; }
#form-toast.success { border-color: rgba(0,245,212,0.4); }
#form-toast.error { border-color: rgba(255,80,80,0.4); }

/* ── Chatbot ─────────────────────────────────────────────────── */
#chatbot-container { position: fixed; bottom: 1.5rem; right: 1.5rem; z-index: 100; }
#chatbot-bubble {
    width: 56px; height: 56px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark-color));
    color: #fff; border: none; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 4px 20px rgba(0,191,255,0.4);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: pulse-glow 2s ease-in-out infinite;
}
#chatbot-bubble:hover { transform: scale(1.1); box-shadow: 0 8px 32px rgba(0,191,255,0.6); }
#chatbot-window {
    position: absolute; bottom: 70px; right: 0;
    width: min(360px, 90vw); height: 480px;
    background: var(--card-bg); backdrop-filter: blur(16px);
    border: 1px solid var(--border-color); border-radius: 1rem;
    display: flex; flex-direction: column; overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
    transform: scale(0.9) translateY(10px); opacity: 0; pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4,0,0.2,1); transform-origin: bottom right;
}
#chatbot-window.open { transform: scale(1) translateY(0); opacity: 1; pointer-events: auto; }
#chat-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem; border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, rgba(0,191,255,0.1), rgba(0,245,212,0.05));
    flex-shrink: 0;
}
.chat-header-info { display: flex; align-items: center; gap: 0.75rem; }
.chat-header-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-color), var(--accent-dark-color));
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 0.75rem; font-weight: 700;
}
.chat-header-text .name { font-weight: 600; font-size: 0.9rem; }
.chat-header-text .status { font-size: 0.72rem; color: #00f5d4; }
#chat-close-btn { background: none; border: none; color: var(--text-secondary); font-size: 1.4rem; cursor: pointer; padding: 0.2rem 0.4rem; border-radius: 0.3rem; transition: color 0.2s; }
#chat-close-btn:hover { color: var(--text-primary); }
#chat-messages { flex: 1; overflow-y: auto; padding: 1rem; display: flex; flex-direction: column; gap: 1rem; }
.chat-message-group { display: flex; gap: 0.6rem; align-items: flex-end; }
.chat-message-group.user { flex-direction: row-reverse; }
.chat-avatar { width: 28px; height: 28px; border-radius: 50%; background: var(--skill-track); display: flex; align-items: center; justify-content: center; font-size: 0.7rem; color: var(--text-secondary); flex-shrink: 0; }
.chat-message-group.user .chat-avatar { background: var(--accent-color); color: #000; }
.chat-bubble { background: var(--skill-bg); border: 1px solid var(--border-color); padding: 0.6rem 0.85rem; border-radius: 1rem; font-size: 0.82rem; line-height: 1.5; max-width: 80%; }
.chat-message-group.user .chat-bubble { background: rgba(0,191,255,0.12); border-color: rgba(0,191,255,0.3); border-bottom-right-radius: 0.25rem; }
.chat-message-group.bot .chat-bubble { border-bottom-left-radius: 0.25rem; }
.typing-indicator .chat-bubble { display: flex; gap: 4px; align-items: center; padding: 0.75rem 1rem; }
.typing-indicator span { width: 6px; height: 6px; background: var(--text-secondary); border-radius: 50%; animation: typing-bounce 1.2s infinite; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
#quick-replies-container { padding: 0 1rem 0.5rem; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.quick-reply { background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary); padding: 0.35rem 0.85rem; border-radius: 9999px; cursor: pointer; transition: all 0.2s; font-size: 0.75rem; }
.quick-reply:hover { background: var(--accent-color); border-color: var(--accent-color); color: #000; }
#chat-input-container { display: flex; padding: 0.75rem 1rem; border-top: 1px solid var(--border-color); background: var(--skill-bg); flex-shrink: 0; gap: 0.6rem; }
#chat-input { flex: 1; border: none; background: var(--skill-track); color: var(--text-primary); padding: 0.6rem 1rem; border-radius: 9999px; outline: none; font-size: 0.85rem; transition: box-shadow 0.2s; }
#chat-input:focus { box-shadow: 0 0 0 2px var(--accent-dark-color); }
#chat-send { background: var(--accent-color); color: #fff; border: none; width: 38px; height: 38px; border-radius: 50%; cursor: pointer; flex-shrink: 0; display: flex; align-items: center; justify-content: center; transition: background 0.2s; }
#chat-send:hover { background: var(--accent-dark-color); }

/* ── Podcast Mini Player ────────────────────────────────────── */
.podcast-mini-player {
    position: fixed; bottom: 1.5rem; left: 1.5rem;
    background: var(--card-bg); backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 9999px; padding: 0.6rem 1rem;
    display: flex; align-items: center; gap: 0.75rem;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
    transform: translateY(100px); opacity: 0; pointer-events: none;
    transition: all 0.4s cubic-bezier(0.4,0,0.2,1);
    z-index: 90; max-width: min(300px, calc(100vw - 3rem));
}
.podcast-mini-player.visible { transform: translateY(0); opacity: 1; pointer-events: auto; }
.mini-player-btn, .mini-close { background: none; border: none; cursor: pointer; color: var(--accent-color); padding: 0.25rem; display: flex; align-items: center; font-size: 0.85rem; }
.mini-progress { flex: 1; height: 4px; background: var(--skill-track); border-radius: 2px; cursor: pointer; overflow: hidden; min-width: 60px; }
.mini-progress-bar { height: 100%; background: var(--accent-color); border-radius: 2px; transition: width 0.3s linear; }
.mini-time { font-size: 0.7rem; font-family: "Roboto Mono", monospace; color: var(--text-secondary); white-space: nowrap; }
.mini-close { color: var(--text-secondary); font-size: 0.75rem; }
.mini-close:hover { color: var(--text-primary); }

/* ── Section Heading Underline ──────────────────────────────── */
.section-heading {
    position: relative; display: inline-block;
    background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.02em;
    font-weight: 700;
    transition: all 0.3s ease;
}
.section-heading::after {
    content: ''; position: absolute;
    bottom: -8px; left: 50%; transform: translateX(-50%);
    width: 60px; height: 3px;
    background: linear-gradient(90deg, var(--accent-color), var(--accent-secondary-color));
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(0, 210, 255, 0.3);
    transition: width 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.section-heading:hover::after {
    width: 100px;
}

/* ── Scroll Down Button ─────────────────────────────────────── */
.scroll-down-wrapper { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); }
.scroll-down-btn {
    color: var(--text-secondary); font-size: 1.25rem;
    animation: bounce 2s infinite; display: block;
    transition: color 0.2s;
}
.scroll-down-btn:hover { color: var(--accent-color); }

/* ── Word Wrapper (reveal animation) ───────────────────────── */
.word-wrapper { display: inline-block; overflow: hidden; vertical-align: bottom; }
.word { display: inline-block; transform-origin: bottom; }

/* ── About Shape ────────────────────────────────────────────── */
.about-shape { position: absolute; stroke: var(--accent-color); stroke-width: 1; fill: none; opacity: 0.3; z-index: -1; }

/* ── Custom Project Modal Enhancements ──────────────────────── */
.modal-glass-container {
    background: rgba(10, 10, 25, 0.8);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 50px rgba(0, 210, 255, 0.15);
}
body.light-mode .modal-glass-container {
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(15, 23, 42, 0.12);
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.15);
}
.modal-feature-list {
    margin-top: 0.75rem;
    padding-left: 0;
    list-style: none;
}
.modal-feature-item {
    position: relative;
    margin-bottom: 0.5rem;
    padding-left: 1.25rem;
    font-size: 0.88rem;
    line-height: 1.45;
    color: var(--text-secondary);
}
.modal-feature-item::before {
    content: "✦";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--accent-secondary-color);
    font-weight: bold;
}

/* ── macOS Window Header & Controls ────────────────────────── */
.mac-window-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.25rem;
    background: rgba(20, 20, 45, 0.4);
    border-bottom: 1px solid var(--border-color);
    position: relative;
    user-select: none;
    border-top-left-radius: 1.5rem;
    border-top-right-radius: 1.5rem;
    z-index: 10;
}
body.light-mode .mac-window-header {
    background: rgba(15, 23, 42, 0.05);
}
.mac-window-controls {
    display: flex;
    gap: 8px;
    align-items: center;
}
.mac-control-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    position: relative;
    padding: 0;
    transition: filter 0.2s ease;
}
.mac-control-btn:hover {
    filter: brightness(0.85);
}
.mac-control-btn::after {
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    font-size: 6px;
    opacity: 0;
    transition: opacity 0.15s ease;
    color: rgba(0, 0, 0, 0.6);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}
.mac-window-controls:hover .mac-control-btn::after {
    opacity: 1;
}
.mac-close {
    background-color: #ff5f56;
    border: 1px solid #e0443e;
}
.mac-close::after {
    content: "\f00d"; /* Times/Close icon */
}
.mac-minimize {
    background-color: #ffbd2e;
    border: 1px solid #dea123;
}
.mac-minimize::after {
    content: "\f068"; /* Minus/Minimize icon */
}
.mac-zoom {
    background-color: #27c93f;
    border: 1px solid #1aab29;
}
.mac-zoom::after {
    content: "\f065"; /* Arrows/Maximize icon */
}
.mac-window-title {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.03em;
    pointer-events: none;
}
.modal-glass-container {
    padding-top: 0 !important; /* Allow header bar to span edge-to-edge */
}
.modal-body-content {
    padding: 1.5rem;
}
@media (min-width: 768px) {
    .modal-body-content {
        padding: 2rem;
    }
}

/* ── macOS Window Explorer Layout ────────────────────────── */
.modal-glass-container {
    height: 80vh;
    display: flex;
    flex-direction: column;
    min-height: 0;
    backdrop-filter: blur(20px);
    background: rgba(10, 10, 20, 0.75);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

body.light-mode .modal-glass-container {
    background: rgba(255, 255, 255, 0.85);
    border: 1px solid rgba(0, 0, 0, 0.08);
}

@media (max-width: 767px) {
    .modal-glass-container {
        height: 90vh;
        margin: 0.5rem !important;
    }
}

.mac-window-body {
    display: flex;
    flex: 1;
    overflow: hidden;
    min-height: 0;
}

.mac-window-sidebar {
    width: 280px;
    background: rgba(5, 5, 15, 0.3);
    border-right: 1px solid var(--border-color);
    padding: 1.25rem 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    overflow-y: auto;
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s, opacity 0.3s;
    min-height: 0;
}

body.light-mode .mac-window-sidebar {
    background: rgba(15, 23, 42, 0.02);
}

.mac-window-sidebar.collapsed {
    width: 0;
    padding: 1.25rem 0;
    opacity: 0;
    pointer-events: none;
    border-right: none;
}

/* Custom Scrollbars */
.mac-window-sidebar::-webkit-scrollbar,
.mac-window-content-wrapper::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.mac-window-sidebar::-webkit-scrollbar-thumb,
.mac-window-content-wrapper::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

body.light-mode .mac-window-sidebar::-webkit-scrollbar-thumb,
body.light-mode .mac-window-content-wrapper::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
}

.mac-window-sidebar::-webkit-scrollbar-thumb:hover,
.mac-window-content-wrapper::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 191, 255, 0.4);
}

.mac-sidebar-section-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-secondary);
    opacity: 0.5;
    padding-left: 0.75rem;
    margin-bottom: 0.25rem;
}

.mac-sidebar-list {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.mac-sidebar-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.75rem;
    border-radius: 0.5rem;
    cursor: pointer;
    user-select: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.75;
}

.mac-sidebar-item:hover {
    background: rgba(255, 255, 255, 0.05);
    opacity: 1;
    transform: translateX(2px);
}

body.light-mode .mac-sidebar-item:hover {
    background: rgba(0, 0, 0, 0.03);
}

.mac-sidebar-item.active {
    background: rgba(0, 191, 255, 0.12);
    border-left: 3px solid var(--accent-color);
    opacity: 1;
    font-weight: 600;
    transform: translateX(4px);
}

body.light-mode .mac-sidebar-item.active {
    background: rgba(0, 191, 255, 0.08);
}

.mac-sidebar-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    min-width: 24px;
    font-size: 0.9rem;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

body.light-mode .mac-sidebar-icon {
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.mac-sidebar-title {
    font-size: 0.82rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.mac-window-content-wrapper {
    flex: 1;
    overflow-y: auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    -webkit-overflow-scrolling: touch;
}

.mac-sidebar-toggle-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    padding: 6px 10px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.2s, color 0.2s;
    margin-left: 0;
}

.mac-sidebar-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

body.light-mode .mac-sidebar-toggle-btn:hover {
    background: rgba(0, 0, 0, 0.04);
}

/* Responsive sidebar styling for mobile */
@media (max-width: 767px) {
    .mac-window-body {
        flex-direction: column;
        min-height: 0;
    }
    .mac-window-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        max-h: 52px;
        padding: 0.35rem 0.5rem;
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
        -webkit-overflow-scrolling: touch;
    }
    .mac-window-sidebar::-webkit-scrollbar {
        display: none !important;
    }
    .mac-window-sidebar.collapsed {
        max-h: 0;
        padding: 0 0.5rem;
        opacity: 0;
        border-bottom: none;
    }
    .mac-sidebar-section-title {
        display: none;
    }
    .mac-sidebar-list {
        flex-direction: row;
        overflow-x: auto;
        gap: 0.4rem;
        width: 100%;
        padding-bottom: 0;
    }
    .mac-sidebar-item {
        flex-shrink: 0;
        padding: 0.3rem 0.6rem;
        background: rgba(255, 255, 255, 0.03);
        opacity: 0.85;
        border-radius: 0.35rem;
    }
    .mac-sidebar-item:hover {
        transform: none;
    }
    .mac-sidebar-item.active {
        border-left: none;
        border-bottom: 2px solid var(--accent-color);
        transform: none;
        background: rgba(0, 191, 255, 0.08);
    }
    .mac-sidebar-title {
        max-width: 130px;
        font-size: 0.75rem;
    }
    .mac-sidebar-toggle-btn {
        margin-left: 0.5rem;
    }
    .mac-window-title {
        display: none !important; /* Hide long titles to prevent clashing with traffic lights on small phones */
    }
    .modal-body-content {
        padding: 1rem !important;
    }
    .modal-body-content h3 {
        font-size: 1.2rem !important;
        margin-bottom: 0.5rem !important;
    }
    .modal-body-content p {
        font-size: 0.82rem !important;
        line-height: 1.4 !important;
        margin-bottom: 0.75rem !important;
    }
    .modal-feature-item {
        font-size: 0.78rem !important;
        margin-bottom: 0.3rem !important;
        padding-left: 1rem !important;
    }
    .modal-feature-item::before {
        font-size: 0.7rem;
    }
    .modal-body-content .flex-row,
    .modal-body-content .flex-col {
        gap: 1rem !important;
    }
    .project-button {
        padding: 0.4rem 0.8rem !important;
        font-size: 0.78rem !important;
    }
}