/* ============================================================
   Portfolio Page Specific Styles
   ============================================================ */

/* --- Hero --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: var(--nav-height);
}
.hero-bg-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(108, 159, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 159, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 20%, transparent 70%);
}
.hero-content {
    position: relative;
    z-index: 1;
    padding-bottom: 100px; /* room for scroll hint */
}
.hero-greeting {
    font-size: 1rem;
    color: var(--accent);
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
    margin-bottom: 8px;
    opacity: 0;
    animation: fadeUp 0.6s var(--ease) 0.2s forwards;
}
.hero-name {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 800;
    color: var(--text-0);
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 16px;
    opacity: 0;
    animation: fadeUp 0.6s var(--ease) 0.35s forwards;
}
.hero-tagline {
    font-size: clamp(1.1rem, 3vw, 1.5rem);
    color: var(--text-2);
    font-weight: 400;
    margin-bottom: 8px;
    opacity: 0;
    animation: fadeUp 0.6s var(--ease) 0.5s forwards;
}
.hero-desc {
    font-size: 1rem;
    color: var(--text-3);
    max-width: 520px;
    margin-bottom: 32px;
    opacity: 0;
    animation: fadeUp 0.6s var(--ease) 0.65s forwards;
}
.hero-actions {
    display: flex;
    gap: 12px;
    opacity: 0;
    animation: fadeUp 0.6s var(--ease) 0.8s forwards;
}
.hero-scroll-hint {
    position: absolute;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    animation: fadeUp 0.6s var(--ease) 1.2s forwards;
    pointer-events: none;
}
/* Hide scroll hint if viewport is too short */
@media (max-height: 700px) {
    .hero-scroll-hint { display: none; }
}
.hero-scroll-hint span {
    font-size: 0.7rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}
.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(0.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* --- About --- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 48px;
    align-items: start;
}
.about-text p {
    margin-bottom: 16px;
    font-size: 1rem;
    line-height: 1.75;
}
.about-stats {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.stat-card {
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: border-color var(--duration) var(--ease),
                transform var(--duration) var(--ease);
}
.stat-card:hover {
    border-color: var(--accent-dim);
    transform: translateY(-2px);
}
.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    display: inline;
}
.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}
.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-3);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

/* --- Projects --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}
.project-card {
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: border-color var(--duration) var(--ease),
                transform var(--duration) var(--ease),
                box-shadow var(--duration) var(--ease);
    display: flex;
    flex-direction: column;
}
.project-card:hover {
    border-color: var(--bg-4);
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}
.project-card.featured {
    border-color: rgba(108, 159, 255, 0.2);
    background: linear-gradient(135deg, var(--bg-2), rgba(108, 159, 255, 0.04));
}
.project-card.featured:hover {
    border-color: rgba(108, 159, 255, 0.4);
}
.project-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}
.project-icon {
    font-size: 2rem;
    line-height: 1;
    color: var(--accent);
}
.project-icon svg {
    display: block;
}
.project-links { display: flex; gap: 12px; }
.project-link {
    font-size: 1.2rem;
    color: var(--text-3);
    transition: color var(--duration) var(--ease);
}
.project-link:hover { color: var(--accent); }
.project-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-0);
    margin-bottom: 10px;
}
.project-desc {
    font-size: 0.9rem;
    color: var(--text-2);
    line-height: 1.6;
    flex-grow: 1;
    margin-bottom: 16px;
}
.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}
.project-tags span {
    font-size: 0.75rem;
    color: var(--accent);
    background: var(--accent-glow);
    padding: 3px 10px;
    border-radius: 4px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}
.project-platforms {
    display: flex;
    gap: 8px;
}
.platform {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 3px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.platform.mac { background: rgba(92, 224, 160, 0.12); color: var(--green); }
.platform.win { background: rgba(108, 159, 255, 0.12); color: var(--accent); }
.platform.web { background: rgba(176, 128, 240, 0.12); color: var(--purple); }

/* --- Skills --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
}
.skill-group {
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: var(--radius-lg);
    padding: 24px;
}
.skill-group-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-2);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 16px;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tag {
    font-size: 0.85rem;
    color: var(--text-1);
    background: var(--bg-3);
    padding: 6px 14px;
    border-radius: 6px;
    transition: background var(--duration) var(--ease),
                color var(--duration) var(--ease);
}
.skill-tag:hover {
    background: var(--accent-glow-strong);
    color: var(--accent);
}

/* --- Contact --- */
.contact-container { text-align: center; }
.contact-intro {
    font-size: 1.1rem;
    color: var(--text-2);
    margin-bottom: 40px;
}
.contact-methods {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}
.contact-card {
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: var(--radius-lg);
    padding: 28px 36px;
    text-align: center;
    transition: border-color var(--duration) var(--ease),
                transform var(--duration) var(--ease);
    min-width: 180px;
    max-width: 260px;
    flex: 1;
}
.contact-card:hover {
    border-color: var(--accent-dim);
    transform: translateY(-3px);
    color: var(--text-0);
}
.contact-icon {
    display: block;
    font-size: 1.8rem;
    margin-bottom: 8px;
    color: var(--accent);
}
.contact-icon svg {
    display: block;
}
.contact-label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 4px;
}
.contact-value {
    display: block;
    font-size: 0.9rem;
    color: var(--text-1);
}

/* --- Schedule Widget --- */
.schedule-widget {
    margin-top: 48px;
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: var(--radius-lg);
    padding: 32px;
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
    text-align: left;
}
.schedule-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-0);
    margin-bottom: 8px;
    text-align: center;
}
.schedule-desc {
    font-size: 0.85rem;
    color: var(--text-2);
    text-align: center;
    margin-bottom: 24px;
    line-height: 1.5;
}
.schedule-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.schedule-fields {
    display: grid;
    gap: 12px;
}
.schedule-fields-2col {
    grid-template-columns: 1fr 1fr;
}
.schedule-field label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}
.schedule-field input,
.schedule-field select {
    width: 100%;
    background: var(--bg-1);
    border: 1px solid var(--bg-3);
    color: var(--text-1);
    font-family: inherit;
    font-size: 0.9rem;
    padding: 10px 12px;
    border-radius: var(--radius);
    outline: none;
    transition: border-color var(--duration) var(--ease);
}
.schedule-field input:focus,
.schedule-field select:focus {
    border-color: var(--accent-dim);
}
.schedule-field select {
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23555568'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 32px;
}
/* Color scheme for date/time inputs in dark mode */
.schedule-field input[type="date"],
.schedule-field input[type="time"] {
    color-scheme: dark;
}
.schedule-field-full {
    width: 100%;
}
.schedule-job-fields {
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.schedule-field-hidden {
    display: none !important;
}
.schedule-field textarea {
    width: 100%;
    background: var(--bg-1);
    border: 1px solid var(--bg-3);
    color: var(--text-1);
    font-family: inherit;
    font-size: 0.9rem;
    padding: 10px 12px;
    border-radius: var(--radius);
    outline: none;
    resize: none;
    overflow: hidden;
    min-height: 44px;
    line-height: 1.5;
    transition: border-color var(--duration) var(--ease);
}
.schedule-field textarea:focus {
    border-color: var(--accent-dim);
}
.char-counter {
    display: block;
    text-align: right;
    font-size: 0.7rem;
    color: var(--text-3);
    margin-top: 4px;
    transition: color 0.2s ease;
}
.char-counter.warn {
    color: #e8a735;
}
.char-counter.full {
    color: #e05252;
}
.schedule-btn {
    margin-top: 8px;
    width: 100%;
    justify-content: center;
    text-align: center;
}

/* --- What I Do --- */
.whatido-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
    margin-top: 32px;
}
.whatido-card {
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: border-color var(--duration) var(--ease),
                transform var(--duration) var(--ease);
}
.whatido-card:hover {
    border-color: var(--accent-dim);
    transform: translateY(-3px);
}
.whatido-icon {
    font-size: 2rem;
    margin-bottom: 16px;
    line-height: 1;
    color: var(--accent);
}
.whatido-icon svg {
    display: block;
}
.whatido-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-0);
    margin-bottom: 10px;
}
.whatido-card p {
    font-size: 0.88rem;
    color: var(--text-2);
    line-height: 1.6;
}

/* --- Certifications --- */
.certs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 20px;
    margin-top: 32px;
}
.cert-card {
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: border-color var(--duration) var(--ease),
                transform var(--duration) var(--ease);
}
.cert-card:hover {
    border-color: var(--accent-dim);
    transform: translateY(-3px);
}
.cert-badge {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--accent-glow);
    border: 2px solid rgba(108, 159, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}
.cert-badge-icon {
    font-size: 1.8rem;
    line-height: 1;
}
.cert-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin: 0 auto 16px;
    border-radius: 50%;
}
.cert-name {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-0);
    margin-bottom: 4px;
}
.cert-issuer {
    font-size: 0.75rem;
    color: var(--text-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.cert-hover {
    font-size: 0.78rem;
    color: var(--text-2);
    line-height: 1.4;
    max-height: 0;
    overflow: hidden;
    opacity: 0 !important;
    margin-top: 0;
    transition: max-height 0.3s ease, opacity 0.3s ease, margin 0.3s ease;
}
.cert-card:hover .cert-hover {
    max-height: 80px;
    opacity: 1 !important;
    margin-top: 8px;
}
a.cert-card {
    display: block;
    text-decoration: none;
    color: inherit;
}

/* --- Testimonials --- */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 32px;
}
.testimonial-card {
    background: var(--bg-2);
    border: 1px solid var(--bg-3);
    border-radius: var(--radius-lg);
    padding: 28px;
    position: relative;
    transition: border-color var(--duration) var(--ease),
                transform var(--duration) var(--ease);
}
.testimonial-card:hover {
    border-color: var(--accent-dim);
    transform: translateY(-2px);
}
.testimonial-text {
    font-size: 0.95rem;
    color: var(--text-1);
    line-height: 1.7;
    font-style: italic;
    margin-bottom: 20px;
}
.testimonial-author {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.testimonial-name {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-0);
    font-style: normal;
}
.testimonial-role {
    font-size: 0.75rem;
    color: var(--text-3);
    font-style: normal;
}
.testimonials-note {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-3);
    margin-top: 32px;
}

/* --- Scroll Animations --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- Challenge Modal --- */
.challenge-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    padding: 20px;
}
.challenge-overlay.open {
    display: flex;
}
.challenge-modal {
    background: var(--bg-1);
    border: 1px solid var(--bg-3);
    border-radius: 16px;
    padding: 32px;
    max-width: 380px;
    width: 100%;
    position: relative;
    text-align: center;
}
.challenge-close {
    position: absolute;
    top: 12px;
    right: 16px;
    background: none;
    border: none;
    color: var(--text-3);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    transition: color 0.2s;
}
.challenge-close:hover {
    color: var(--text-0);
}
.challenge-title {
    font-size: 1.2rem;
    color: var(--text-0);
    margin-bottom: 4px;
}
.challenge-desc {
    font-size: 0.88rem;
    color: var(--text-2);
    margin-bottom: 20px;
}
.challenge-question {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 16px;
    font-family: 'SF Mono', 'Fira Code', 'Consolas', monospace;
}
.challenge-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--bg-3);
    border-radius: 8px;
    background: var(--bg-0);
    color: var(--text-0);
    font-size: 1.1rem;
    text-align: center;
    outline: none;
    transition: border-color 0.2s;
}
.challenge-input:focus {
    border-color: var(--accent);
}
.challenge-error {
    color: var(--red, #e74c3c);
    font-size: 0.82rem;
    min-height: 1.2em;
    margin: 8px 0;
}
.challenge-submit {
    width: 100%;
    margin-top: 4px;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .hero { min-height: 90vh; padding-top: 80px; }
    .hero-name { margin-bottom: 12px; }
    .hero-actions { flex-direction: column; gap: 10px; }
    .hero-scroll-hint { display: none; }
    .hero-desc { font-size: 0.95rem; margin-bottom: 24px; }

    .about-grid { grid-template-columns: 1fr; gap: 32px; }
    .about-text p { font-size: 0.95rem; }
    .about-stats { flex-direction: row; }
    .stat-card { flex: 1; padding: 14px; }
    .stat-value { font-size: 1.5rem; }
    .stat-label { font-size: 0.7rem; }

    .projects-grid { grid-template-columns: 1fr; }
    .project-card { padding: 20px; }
    .project-desc { font-size: 0.88rem; }

    .skills-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .skill-group { padding: 16px; }
    .skill-tag { padding: 5px 10px; font-size: 0.8rem; }

    .whatido-grid { grid-template-columns: 1fr; }
    .whatido-card { padding: 20px; }

    .certs-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; }
    .cert-card { padding: 16px; }
    .cert-badge { width: 52px; height: 52px; margin-bottom: 12px; }
    .cert-badge-icon { font-size: 1.4rem; }
    .cert-logo { width: 60px; height: 60px; margin-bottom: 12px; }
    .cert-name { font-size: 0.85rem; }
    .cert-hover {
        max-height: 80px !important;
        opacity: 1 !important;
        margin-top: 8px;
    }

    .testimonials-grid { grid-template-columns: 1fr; }
    .testimonial-card { padding: 20px; }

    .schedule-widget { padding: 20px; margin-top: 32px; }
    .schedule-field input,
    .schedule-field select,
    .schedule-field textarea { font-size: 16px; padding: 12px; } /* 16px prevents iOS zoom */

    .contact-methods { flex-direction: column; align-items: stretch; }
    .contact-card {
        padding: 20px 24px;
        min-width: unset;
        display: flex;
        align-items: center;
        gap: 16px;
        text-align: left;
    }
    .contact-icon { font-size: 1.5rem; margin-bottom: 0; }
    .contact-card > span:last-child { flex: 1; }
}

@media (max-width: 480px) {
    .hero-name { font-size: 2.5rem; }
    .hero-tagline { font-size: 1rem; }
    .about-stats { flex-direction: column; }
    .skills-grid { grid-template-columns: 1fr; }
    .schedule-fields-2col { grid-template-columns: 1fr; }
    .section-subtitle { font-size: 0.9rem; margin-bottom: 24px; }
}

@media (max-width: 380px) {
    .hero-name { font-size: 2.2rem; }
    .project-tags span { font-size: 0.7rem; padding: 2px 8px; }
    .stat-card { padding: 10px; }
    .stat-value { font-size: 1.3rem; }
}