/* ============================================================
   components.css — Hero, cards, timeline, badges, buttons,
   skill chips, certifications grid, gallery, forms, socials
   ============================================================ */

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: calc(100vh - var(--nav-height));
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: radial-gradient(ellipse at top, #1f1f1f 0%, var(--color-bg) 70%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: var(--space-lg) var(--space-md);
}

.hero h1 {
    margin-bottom: var(--space-sm);
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-sm);
}

.hero-typed {
    font-size: 2rem;
    color: var(--color-accent);
    font-weight: 600;
    min-height: 2.4em;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-typed .typed-cursor {
    color: var(--color-accent);
}

.hero-cta {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-lg);
}

/* Decorative wave divider */
.wave-divider {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    line-height: 0;
    z-index: 1;
}

.wave-divider svg {
    display: block;
    width: calc(100% + 1.3px);
    height: 80px;
}

.wave-divider .shape-fill {
    fill: var(--color-bg);
}

/* Scroll indicator */
.scroll-cue {
    position: absolute;
    bottom: var(--space-lg);
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    color: var(--color-text-dim);
    font-size: 1.3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.scroll-cue span {
    width: 22px;
    height: 34px;
    border: 2px solid var(--color-border-strong);
    border-radius: var(--radius-pill);
    position: relative;
}

.scroll-cue span::after {
    content: "";
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--color-accent);
    border-radius: var(--radius-pill);
    animation: scrollcue 1.8s infinite;
}

@keyframes scrollcue {
    0% { opacity: 1; transform: translate(-50%, 0); }
    100% { opacity: 0; transform: translate(-50%, 12px); }
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-pill);
    font-size: 1.5rem;
    font-weight: 600;
    transition: transform var(--transition-fast), background var(--transition-fast),
        box-shadow var(--transition-fast), color var(--transition-fast);
    will-change: transform;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn--primary {
    background: var(--color-accent);
    color: var(--color-bg);
    box-shadow: var(--shadow-accent);
}

.btn--primary:hover {
    background: var(--color-accent-hover);
    color: var(--color-bg);
}

.btn--ghost {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border-strong);
}

.btn--ghost:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* ---------- Social icons ---------- */
.social {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--space-md);
}

.social a {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--color-border);
    transition: transform var(--transition-fast), background var(--transition-fast),
        color var(--transition-fast);
}

.social a:hover {
    transform: translateY(-3px);
    background: var(--color-accent);
    color: var(--color-bg);
    border-color: var(--color-accent);
}

/* ---------- About / Profile ---------- */
.about-grid {
    display: grid;
    grid-template-columns: minmax(220px, 320px) 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.profile-picture {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: var(--radius-lg);
    border: 3px solid var(--color-border-strong);
    box-shadow: var(--shadow-md);
}

.about-text p {
    margin-bottom: var(--space-md);
    font-size: 1.7rem;
}

.about-text p:last-child {
    margin-bottom: 0;
}

/* ---------- Cards (generic) ---------- */
.card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    transition: transform var(--transition-base), border-color var(--transition-base),
        box-shadow var(--transition-base);
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
}

.grid {
    display: grid;
    gap: var(--space-md);
}

.grid--2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid--4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ---------- Awards strip ---------- */
.awards-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-sm);
}

.award-chip {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-left: 3px solid var(--color-accent);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-md);
}

.award-chip strong {
    display: block;
    color: var(--color-text);
    margin-bottom: 2px;
}

.award-chip span {
    color: var(--color-text-dim);
    font-size: 1.3rem;
}

/* ---------- Timeline ---------- */
.timeline {
    position: relative;
    max-width: 820px;
    margin: 0 auto;
    padding-left: 32px;
}

.timeline::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: 8px;
    width: 2px;
    background: linear-gradient(var(--color-accent), transparent);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-xl);
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: "";
    position: absolute;
    left: -32px;
    top: 6px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-bg);
    border: 3px solid var(--color-accent);
    box-shadow: 0 0 0 4px var(--color-accent-soft);
}

.timeline-date {
    display: inline-block;
    color: var(--color-accent);
    font-size: 1.3rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}

.timeline-item h3 {
    margin-bottom: 4px;
}

.timeline-org {
    color: var(--color-text-muted);
    font-size: 1.5rem;
    margin-bottom: var(--space-sm);
}

.timeline-item ul {
    list-style: disc;
    padding-left: 20px;
    color: var(--color-text-muted);
}

.timeline-item ul li {
    margin-bottom: 6px;
    line-height: 1.5;
}

.timeline-item ul li::marker {
    color: var(--color-accent);
}

/* ---------- Skill chips ---------- */
.skill-group {
    margin-bottom: var(--space-lg);
}

.skill-group h3 {
    margin-bottom: var(--space-sm);
    display: flex;
    align-items: center;
    gap: 8px;
}

.skill-group h3 i {
    color: var(--color-accent);
}

.chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.chip {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    color: var(--color-text);
    padding: 6px 14px;
    border-radius: var(--radius-pill);
    font-size: 1.4rem;
    font-weight: 500;
    transition: border-color var(--transition-fast), color var(--transition-fast),
        background var(--transition-fast);
}

.chip:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: var(--color-accent-soft);
}

/* ---------- Certifications grid ---------- */
.cert-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.cert-card:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
}

.cert-card .cert-issuer {
    color: var(--color-accent);
    font-size: 1.3rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.cert-card .cert-name {
    color: var(--color-text);
    font-size: 1.5rem;
    font-weight: 500;
    line-height: 1.4;
}

.cert-card .cert-year {
    color: var(--color-text-dim);
    font-size: 1.3rem;
    margin-top: auto;
}

/* ---------- Project cards ---------- */
.project-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base), border-color var(--transition-base),
        box-shadow var(--transition-base);
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-lg);
}

.project-thumb {
    aspect-ratio: 16 / 9;
    object-fit: cover;
    background: var(--color-bg-elevated-2);
    border-bottom: 1px solid var(--color-border);
}

.project-body {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    flex: 1;
}

.project-tag {
    color: var(--color-accent);
    font-size: 1.3rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.project-card h3 {
    font-size: 2rem;
}

.project-card p {
    font-size: 1.5rem;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: auto;
    padding-top: var(--space-sm);
}

.tech-badge {
    background: var(--color-accent-soft);
    color: var(--color-accent);
    border: 1px solid rgba(4, 171, 108, 0.3);
    padding: 4px 10px;
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    font-weight: 600;
    font-family: var(--font-mono);
}

/* ---------- Gallery ---------- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: var(--space-md);
}

.gallery-item {
    overflow: hidden;
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border);
    aspect-ratio: 4 / 3;
    background: var(--color-bg-elevated-2);
    transition: transform var(--transition-base), border-color var(--transition-base);
}

.gallery-item:hover {
    transform: scale(1.02);
    border-color: var(--color-accent);
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base);
}

.gallery-item:hover img {
    transform: scale(1.06);
}

.gallery-caption {
    color: var(--color-text-dim);
    font-size: 1.3rem;
    margin-top: 6px;
    text-align: center;
}

/* ---------- Contact ---------- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.contact-item i {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--color-accent-soft);
    color: var(--color-accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    flex-shrink: 0;
}

.contact-item .label {
    color: var(--color-text-dim);
    font-size: 1.3rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.contact-item .value {
    color: var(--color-text);
    font-size: 1.6rem;
    font-weight: 500;
}

/* Form */
.contact-form {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    color: var(--color-text-muted);
    font-size: 1.4rem;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    background: var(--color-bg);
    border: 1px solid var(--color-border-strong);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    color: var(--color-text);
    font-family: inherit;
    font-size: 1.5rem;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    outline: none;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* Form feedback */
.form-feedback {
    font-size: 1.4rem;
    font-weight: 500;
    padding: 0;
    margin-top: 4px;
    min-height: 0;
    transition: padding var(--transition-fast), margin-top var(--transition-fast);
}

.form-feedback:empty {
    padding: 0;
    margin-top: 0;
}

.form-feedback:not(:empty) {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-sm);
    margin-top: var(--space-xs);
}

.form-feedback--success {
    color: var(--color-accent);
    background: var(--color-accent-soft);
    border: 1px solid rgba(4, 171, 108, 0.3);
}

.form-feedback--error {
    color: #ff6b6b;
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.3);
}

#contact-submit:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* ---------- Prof dev list ---------- */
.dev-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-sm);
}

.dev-list li {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: var(--space-sm) var(--space-md);
    color: var(--color-text-muted);
    font-size: 1.4rem;
    transition: border-color var(--transition-fast);
}

.dev-list li:hover {
    border-color: var(--color-accent);
}

.dev-list li strong {
    color: var(--color-text);
}

.dev-list li .year {
    color: var(--color-accent);
    font-size: 1.2rem;
    font-weight: 600;
    margin-left: 6px;
}