/**
 * Prashant Rana Portfolio — Component Styles
 * Glass cards, timeline, skill constellation, progress nav
 */

/* ============ Progress Navigation ============ */
.progress-nav {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: var(--z-sticky);
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
}

.progress-nav__item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

.progress-nav__label {
    font-size: 0.65rem;
    font-weight: var(--fw-medium);
    letter-spacing: var(--ls-wider);
    text-transform: uppercase;
    color: var(--c-text-dim);
    opacity: 0;
    transform: translateX(8px);
    transition:
        opacity var(--duration-base) var(--ease-out-quart),
        transform var(--duration-base) var(--ease-out-quart);
    white-space: nowrap;
}

.progress-nav__dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--c-text-dim);
    transition:
        background var(--duration-base) var(--ease-out-quart),
        transform var(--duration-base) var(--ease-out-quart),
        box-shadow var(--duration-base) var(--ease-out-quart);
    flex-shrink: 0;
}

.progress-nav__item:hover .progress-nav__label {
    opacity: 1;
    transform: translateX(0);
}

.progress-nav__item:hover .progress-nav__dot {
    background: var(--c-text-secondary);
    transform: scale(1.4);
}

.progress-nav__item.is-active .progress-nav__dot {
    background: var(--c-primary);
    transform: scale(1.6);
    box-shadow: 0 0 12px var(--c-primary-glow);
}

.progress-nav__item.is-active .progress-nav__label {
    color: var(--c-primary);
    opacity: 1;
    transform: translateX(0);
}

@media (max-width: 768px) {
    .progress-nav {
        display: none;
    }
}

/* ============ Top Navigation ============ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: var(--z-sticky);
    padding: 1.25rem 0;
    transition:
        background var(--duration-slow) var(--ease-out-quart),
        padding var(--duration-slow) var(--ease-out-quart),
        backdrop-filter var(--duration-slow);
}

.navbar.is-scrolled {
    background: rgba(10, 15, 30, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-subtle);
}

.navbar__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.navbar__logo {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: var(--fw-bold);
    color: var(--c-text-primary);
    letter-spacing: var(--ls-tight);
    text-decoration: none;
}

.navbar__logo span {
    color: var(--c-primary);
}

.navbar__menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.navbar__link {
    padding: 0.5rem 1rem;
    font-size: var(--fs-caption);
    font-weight: var(--fw-medium);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    color: var(--c-text-muted);
    border-radius: var(--radius-full);
    text-decoration: none;
    transition:
        color var(--duration-base) var(--ease-out-quart),
        background var(--duration-base) var(--ease-out-quart);
}

.navbar__link:hover {
    color: var(--c-text-primary);
}

.navbar__link.is-active {
    color: var(--c-primary);
    background: var(--c-primary-subtle);
}

.navbar__link--cta {
    background: var(--c-primary);
    color: var(--c-surface-deep);
    font-weight: var(--fw-semibold);
    padding: 0.5rem 1.35rem;
}

.navbar__link--cta:hover {
    background: var(--c-primary-dim);
    color: var(--c-surface-deep);
}

/* Mobile hamburger */
.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    cursor: pointer;
    background: none;
    border: none;
}

.navbar__toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--c-text-primary);
    border-radius: 2px;
    transition: transform var(--duration-base) var(--ease-out-quart),
                opacity var(--duration-base);
}

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

.navbar__settings {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 0.75rem;
}

.navbar__icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-subtle);
    background: transparent;
    color: var(--c-text-muted);
    cursor: pointer;
    font-size: 1rem;
    transition:
        border-color var(--duration-base) var(--ease-out-quart),
        color var(--duration-base) var(--ease-out-quart);
}

.navbar__icon-btn:hover {
    border-color: var(--border-medium);
    color: var(--c-text-primary);
}

@media (max-width: 768px) {
    .navbar__toggle {
        display: flex;
    }

    .navbar__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 75%;
        max-width: 320px;
        height: 100vh;
        flex-direction: column;
        align-items: flex-start;
        padding: 5rem 2rem 2rem;
        background: rgba(10, 15, 30, 0.98);
        backdrop-filter: blur(30px);
        -webkit-backdrop-filter: blur(30px);
        border-left: 1px solid var(--border-subtle);
        transition: right var(--duration-slow) var(--ease-out-expo);
        gap: 0.5rem;
    }

    .navbar__menu.is-open {
        right: 0;
    }

    .navbar__link {
        font-size: var(--fs-small);
        padding: 0.75rem 1rem;
        width: 100%;
    }

    .navbar__settings {
        margin-left: 0;
        margin-top: var(--space-lg);
        padding-top: var(--space-lg);
        border-top: 1px solid var(--border-subtle);
    }
}

/* ============ Timeline ============ */
.timeline {
    position: relative;
    padding-left: 2.5rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(
        to bottom,
        transparent,
        var(--c-primary) 15%,
        var(--c-primary) 85%,
        transparent
    );
    opacity: 0.3;
}

.timeline__item {
    position: relative;
    padding-bottom: var(--space-3xl);
}

.timeline__item:last-child {
    padding-bottom: 0;
}

.timeline__marker {
    position: absolute;
    left: -2.5rem;
    top: 0.35rem;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--c-surface-deep);
    border: 2px solid var(--c-primary);
    z-index: 2;
    transition: box-shadow var(--duration-base) var(--ease-out-quart);
}

.timeline__item:hover .timeline__marker {
    box-shadow: 0 0 16px var(--c-primary-glow);
}

.timeline__content {
    padding: var(--space-xl);
}

.timeline__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: var(--space-md);
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.timeline__company {
    font-size: var(--fs-h4);
    font-weight: var(--fw-bold);
    color: var(--c-text-primary);
}

.timeline__location {
    font-size: var(--fs-small);
    color: var(--c-text-muted);
}

.timeline__period {
    font-size: var(--fs-caption);
    font-weight: var(--fw-semibold);
    color: var(--c-primary);
    letter-spacing: var(--ls-wide);
    white-space: nowrap;
}

.timeline__role {
    font-size: var(--fs-body);
    font-weight: var(--fw-semibold);
    color: var(--c-text-secondary);
    margin-bottom: var(--space-md);
}

.timeline__highlights {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.timeline__highlights li {
    position: relative;
    padding-left: 1.25rem;
    font-size: var(--fs-small);
    color: var(--c-text-muted);
    line-height: var(--lh-relaxed);
}

.timeline__highlights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.55em;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--c-primary);
    opacity: 0.5;
}

/* ============ Skill Constellation ============ */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-xl);
}

.skill-group {
    padding: var(--space-xl);
}

.skill-group__header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.skill-group__icon {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: var(--c-primary-subtle);
}

.skill-group__title {
    font-size: var(--fs-h4);
    font-weight: var(--fw-semibold);
}

.skill-group__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* ============ Project Cards ============ */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-xl);
}

.project-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
}

.project-card__visual {
    height: 200px;
    background: linear-gradient(135deg, var(--c-surface-raised), var(--c-surface-overlay));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    border-bottom: 1px solid var(--border-subtle);
    overflow: hidden;
    position: relative;
}

.project-card__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-card__body {
    padding: var(--space-xl);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.project-card__category {
    display: inline-block;
    margin-bottom: var(--space-sm);
}

.project-card__title {
    font-size: var(--fs-h4);
    font-weight: var(--fw-bold);
    margin-bottom: var(--space-sm);
}

.project-card__desc {
    font-size: var(--fs-small);
    color: var(--c-text-muted);
    line-height: var(--lh-relaxed);
    flex: 1;
}

.project-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-lg);
    font-size: var(--fs-small);
    font-weight: var(--fw-semibold);
    color: var(--c-primary);
}

.project-card__link svg {
    width: 16px;
    height: 16px;
    transition: transform var(--duration-base) var(--ease-out-quart);
}

.project-card__link:hover svg {
    transform: translateX(4px);
}

/* ============ Certificate Cards ============ */
.certificates-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.cert-card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 0;
}

.cert-card__image {
    height: 180px;
    overflow: hidden;
    border-bottom: 1px solid var(--border-subtle);
    cursor: pointer;
}

.cert-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-slow) var(--ease-out-quart);
}

.cert-card__image:hover img {
    transform: scale(1.05);
}

.cert-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100px;
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--c-surface-raised), var(--c-surface-overlay));
    border-bottom: 1px solid var(--border-subtle);
}

.cert-card__body {
    padding: var(--space-xl);
}

.cert-card__title {
    font-size: var(--fs-h4);
    font-weight: var(--fw-bold);
    margin-bottom: var(--space-xs);
}

.cert-card__org {
    font-size: var(--fs-small);
    color: var(--c-primary);
    font-weight: var(--fw-medium);
}

.cert-card__year {
    font-size: var(--fs-caption);
    color: var(--c-text-dim);
    margin-top: var(--space-xs);
}

.cert-card__desc {
    font-size: var(--fs-small);
    color: var(--c-text-muted);
    margin-top: var(--space-sm);
    line-height: var(--lh-relaxed);
}

.cert-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    margin-top: var(--space-md);
    font-size: var(--fs-small);
    font-weight: var(--fw-semibold);
    color: var(--c-primary);
}

/* ============ Education Cards ============ */
.education-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--space-lg);
}

.edu-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
}

.edu-card__icon {
    font-size: 1.75rem;
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--c-primary-subtle);
    border-radius: var(--radius-md);
}

.edu-card__institution {
    font-size: var(--fs-h4);
    font-weight: var(--fw-bold);
    margin-bottom: var(--space-xs);
}

.edu-card__location {
    font-size: var(--fs-small);
    color: var(--c-text-muted);
}

.edu-card__degree {
    font-size: var(--fs-small);
    color: var(--c-text-secondary);
    margin-top: var(--space-xs);
}

.edu-card__board {
    font-size: var(--fs-caption);
    color: var(--c-text-dim);
    margin-top: var(--space-xs);
}

/* ============ Services ============ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: var(--space-xl);
}

.service-card {
    position: relative;
    padding: var(--space-2xl);
}

.service-card.is-featured {
    border-color: var(--c-primary);
    box-shadow: 0 0 40px rgba(45, 212, 191, 0.08);
}

.service-card__badge {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    padding: 0.25rem 0.75rem;
    font-size: var(--fs-caption);
    font-weight: var(--fw-bold);
    letter-spacing: var(--ls-wide);
    text-transform: uppercase;
    background: var(--c-primary);
    color: var(--c-surface-deep);
    border-radius: var(--radius-full);
}

.service-card__icon {
    width: 56px;
    height: 56px;
    color: var(--c-primary);
    margin-bottom: var(--space-lg);
}

.service-card__title {
    font-size: var(--fs-h3);
    font-weight: var(--fw-bold);
    margin-bottom: var(--space-lg);
}

.service-card__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.service-card__list li {
    position: relative;
    padding-left: 1.25rem;
    font-size: var(--fs-small);
    color: var(--c-text-muted);
    line-height: var(--lh-relaxed);
}

.service-card__list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--c-primary);
    font-size: 0.75rem;
}

/* ============ Contact Section ============ */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-3xl);
    align-items: start;
}

@media (max-width: 768px) {
    .contact-layout {
        grid-template-columns: 1fr;
    }
}

.contact-info__title {
    font-size: var(--fs-h3);
    margin-bottom: var(--space-md);
}

.contact-info__text {
    margin-bottom: var(--space-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
}

.contact-details__item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    font-size: var(--fs-small);
    color: var(--c-text-secondary);
}

.contact-details__icon {
    font-size: 1.25rem;
}

.contact-availability h4 {
    font-size: var(--fs-body);
    font-weight: var(--fw-semibold);
    margin-bottom: var(--space-md);
}

.contact-availability ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.contact-availability li {
    position: relative;
    padding-left: 1.25rem;
    font-size: var(--fs-small);
    color: var(--c-text-muted);
}

.contact-availability li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--c-primary);
    font-size: 0.75rem;
}

/* ============ Footer ============ */
.footer {
    position: relative;
    padding: var(--space-3xl) 0 var(--space-xl);
    border-top: 1px solid var(--border-subtle);
    background: var(--c-surface-deep);
}

.footer__content {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    justify-content: space-between;
    gap: var(--space-2xl);
    margin-bottom: var(--space-2xl);
}

.footer__brand {
    max-width: 320px;
}

.footer__logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: var(--fw-bold);
    color: var(--c-text-primary);
    margin-bottom: var(--space-sm);
}

.footer__tagline {
    font-size: var(--fs-small);
    color: var(--c-text-muted);
    margin-bottom: var(--space-lg);
}

.footer__nav {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md) var(--space-xl);
}

.footer__nav a {
    font-size: var(--fs-small);
    color: var(--c-text-muted);
    transition: color var(--duration-base) var(--ease-out-quart);
}

.footer__nav a:hover {
    color: var(--c-primary);
}

.footer__note {
    font-size: var(--fs-small);
    color: var(--c-text-dim);
    font-style: italic;
}

.footer__bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-subtle);
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer__bottom p {
    font-size: var(--fs-caption);
    color: var(--c-text-dim);
}

.footer__admin {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-caption);
    color: var(--c-text-dim);
}

.footer__admin svg {
    width: 14px;
    height: 14px;
}

.footer__admin:hover {
    color: var(--c-text-muted);
}

/* ============ Lightbox ============ */
.image-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    visibility: hidden;
    transition:
        opacity var(--duration-base) var(--ease-out-quart),
        visibility var(--duration-base);
}

.image-lightbox.is-active {
    opacity: 1;
    visibility: visible;
}

.image-lightbox img {
    max-width: 90%;
    max-height: 90vh;
    border-radius: var(--radius-md);
}

.image-lightbox__close {
    position: absolute;
    top: var(--space-xl);
    right: var(--space-xl);
    font-size: 2rem;
    color: var(--c-text-primary);
    cursor: pointer;
    background: none;
    border: none;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full);
    transition: background var(--duration-base);
}

.image-lightbox__close:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* ============ Empty States ============ */
.empty-state {
    text-align: center;
    padding: var(--space-3xl) var(--space-xl);
}

.empty-state__icon {
    font-size: 3rem;
    margin-bottom: var(--space-lg);
    opacity: 0.5;
}

.empty-state__text {
    font-size: var(--fs-body);
    color: var(--c-text-muted);
}