/* =========================================================
   Responsive rules
   ========================================================= */

@media (max-width: 1200px) {
  .nav__link {
    padding: 9px 11px;
    font-size: 0.74rem;
  }

  .brand__text {
    display: none;
  }

  .brand__divider {
    display: none;
  }

  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cert-preview {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cert-cta {
    grid-column: span 2;
    min-height: 220px;
  }

  .hobby-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .process-grid::before {
    display: none;
  }
}

@media (max-width: 1080px) {
  .nav {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .work-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .work-grid .work-card:last-child {
    grid-column: span 2;
  }

  .work-grid .work-card:last-child .project-cover {
    aspect-ratio: 21 / 9;
  }

  .footer__grid {
    grid-template-columns: 1.3fr 0.7fr 0.8fr;
  }

  .footer__col--contact {
    grid-column: span 3;
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .footer__col--contact h3 {
    width: 100%;
    margin-bottom: 0;
  }
}

@media (max-width: 980px) {
  .hero {
    padding-top: 132px;
  }

  .hero__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero__copy {
    max-width: 680px;
  }

  .hero__visual {
    width: min(100%, 500px);
    margin-inline: auto;
    padding: 10px 20px 36px;
  }

  .portrait {
    width: min(100%, 430px);
  }

  .hero__scroll {
    display: none;
  }

  .hero__meta {
    max-width: 640px;
  }

  .page-hero {
    padding-top: 132px;
  }

  .page-hero__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .page-hero__copy {
    max-width: 700px;
  }

  .page-hero__aside {
    margin-top: 8px;
  }

  .mini-profile {
    width: min(100%, 360px);
  }

  .about-preview {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .about-preview__media {
    max-width: 470px;
    margin-inline: auto;
  }

  .about-preview__body {
    max-width: 720px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 56px;
  }

  .about-media {
    max-width: 460px;
    margin-inline: auto;
  }

  .about-copy {
    max-width: 760px;
  }

  .skills-layout {
    grid-template-columns: 1fr;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }

  .contact-aside {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: stretch;
  }

  .contact-availability,
  .contact-time {
    grid-column: span 2;
  }

  .faq-layout {
    grid-template-columns: 1fr;
    gap: 38px;
  }

  .faq-intro {
    max-width: 620px;
  }

  .stats-band__inner {
    padding: 22px 24px;
    flex-wrap: wrap;
  }

  .stat {
    flex: 1 1 calc(50% - 20px);
    min-width: 190px;
  }

  .stat__divider {
    display: none;
  }

  .toolbox-panel {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 900px) {
  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }

  .section-head--center {
    align-items: center;
  }

  .section-head__note {
    max-width: 560px;
    padding-bottom: 0;
  }

  .value-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .value-grid .value-card:last-child {
    grid-column: span 2;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }

  .project-card--featured {
    grid-column: span 1;
  }

  .project-card--featured .project-card__button {
    grid-template-columns: 1fr;
  }

  .project-card--featured .project-cover {
    min-height: 0;
    aspect-ratio: 16 / 9;
    border-right: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .cert-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .facts-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .service-detail-grid {
    grid-template-columns: 1fr;
  }

  .footer__grid {
    grid-template-columns: 1.4fr 0.8fr;
  }

  .footer__col--contact {
    grid-column: span 2;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(100% - 32px, var(--container));
  }

  .nav-shell {
    width: min(100% - 32px, var(--container));
    padding-left: 12px;
  }

  .nav-cta {
    display: none;
  }

  .hero__title {
    font-size: clamp(2.65rem, 10.5vw, 4.4rem);
  }

  .hero__visual {
    padding: 10px 0 36px;
  }

  .float-badge--python {
    left: 0;
  }

  .float-badge--django {
    right: 0;
  }

  .float-badge--js {
    left: 0;
  }

  .float-badge--exp {
    right: 0;
  }

  .work-grid {
    grid-template-columns: 1fr;
  }

  .work-grid .work-card:last-child {
    grid-column: span 1;
  }

  .work-grid .work-card:last-child .project-cover {
    aspect-ratio: 16 / 11;
  }

  .cert-preview {
    grid-template-columns: 1fr;
  }

  .cert-cta {
    grid-column: span 1;
    min-height: 0;
  }

  .hobby-grid,
  .process-grid,
  .value-grid {
    grid-template-columns: 1fr;
  }

  .value-grid .value-card:last-child {
    grid-column: span 1;
  }

  .about-media__note {
    position: relative;
    right: auto;
    bottom: auto;
    width: 100%;
    margin-top: 14px;
    transform: none;
  }

  .about-media__ring {
    display: none;
  }

  .about-preview__quote {
    position: relative;
    right: auto;
    bottom: auto;
    width: 100%;
    margin-top: 14px;
    transform: none;
  }

  .contact-aside {
    grid-template-columns: 1fr;
  }

  .contact-availability,
  .contact-time {
    grid-column: span 1;
  }

  .field-grid {
    grid-template-columns: 1fr;
  }

  .project-modal__columns {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .cert-modal__body {
    grid-template-columns: 1fr;
  }

  .cert-modal__visual {
    min-height: 0;
    padding: 20px 20px 56px;
  }

  .cert-modal__visual img {
    max-height: 38vh;
  }

  .modal {
    padding: 14px;
  }

  .modal__dialog {
    max-height: 94vh;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 34px;
  }

  .footer__col--contact {
    grid-column: span 2;
  }

  .footer__brand {
    grid-column: span 2;
  }

  .footer__bottom {
    justify-content: flex-start;
    gap: 10px;
    flex-direction: column;
  }

  .footer__top {
    margin-top: 4px;
  }

  .timeline {
    padding-left: 36px;
  }

  .timeline::before {
    left: 16px;
  }

  .timeline__item {
    padding: 22px;
  }

  .timeline__marker {
    top: 22px;
    left: -36px;
    width: 33px;
    height: 33px;
  }

  .timeline__marker .icon {
    width: 14px;
    height: 14px;
  }

  .code-card__code {
    font-size: 0.64rem;
  }
}

@media (max-width: 620px) {
  .site-header {
    padding: 12px 0;
  }

  .nav-shell {
    padding: 7px 9px 7px 12px;
  }

  .brand__logo {
    height: 32px;
  }

  .nav-toggle {
    width: 38px;
    height: 38px;
  }

  .nav-toggle span {
    left: 9px;
  }

  .nav-toggle span:nth-child(1) { top: 12px; }
  .nav-toggle span:nth-child(2) { top: 18px; }
  .nav-toggle span:nth-child(3) { top: 24px; }
  .nav-toggle.is-open span:nth-child(1),
  .nav-toggle.is-open span:nth-child(3) { top: 18px; }

  .mobile-menu__panel {
    padding: 88px 22px 26px;
  }

  .hero {
    padding-top: 112px;
  }

  .page-hero {
    padding-top: 112px;
  }

  .hero__title {
    font-size: clamp(2.35rem, 12vw, 3.6rem);
  }

  .hero__role {
    font-size: 0.98rem;
  }

  .hero__text {
    font-size: 0.9rem;
  }

  .hero__actions .btn {
    flex: 1 1 auto;
  }

  .hero__meta {
    gap: 14px;
  }

  .hero__meta-divider {
    display: none;
  }

  .hero__meta-item {
    flex: 1 1 100%;
  }

  .hero__meta-item strong {
    max-width: 100%;
  }

  .hero__visual {
    width: 100%;
  }

  .portrait {
    aspect-ratio: 4 / 5;
    border-radius: 30px;
  }

  .float-badge {
    padding: 8px 10px;
    font-size: 0.6rem;
  }

  .float-badge--python {
    top: 6%;
  }

  .float-badge--django {
    top: 22%;
  }

  .float-badge--js {
    bottom: 27%;
  }

  .float-badge--exp {
    bottom: 7%;
    padding: 10px 13px;
  }

  .float-badge--exp strong {
    font-size: 1.3rem;
  }

  .stats-band__inner {
    padding: 18px;
    gap: 18px 12px;
  }

  .stat {
    flex: 1 1 calc(50% - 12px);
    min-width: 0;
    gap: 10px;
  }

  .stat__icon {
    width: 38px;
    height: 38px;
  }

  .stat__value {
    font-size: 1.55rem;
  }

  .stat__label {
    font-size: 0.5rem;
  }

  .section-title {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }

  .page-hero__title {
    font-size: clamp(2.45rem, 12vw, 4rem);
  }

  .facts-grid {
    grid-template-columns: 1fr;
  }

  .cert-grid {
    grid-template-columns: 1fr;
  }

  .filter-bar {
    width: 100%;
    padding: 6px;
    border-radius: 18px;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
  }

  .filter-bar::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex-shrink: 0;
  }

  .project-cover__browser {
    top: 12px;
    right: 12px;
    left: 12px;
    height: 27px;
  }

  .project-cover__icon,
  .project-cover__open {
    top: 52px;
  }

  .project-cover__chips {
    bottom: 12px;
    left: 12px;
  }

  .service-card {
    padding: 22px;
  }

  .service-detail {
    padding: 23px;
  }

  .contact-form-wrap {
    padding: 22px 18px;
  }

  .contact-form__footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .contact-form__footer .btn {
    width: 100%;
  }

  .contact-quick {
    width: 100%;
  }

  .contact-quick__item {
    flex: 1 1 100%;
  }

  .contact-globe {
    min-height: 0;
    padding: 20px;
  }

  .contact-globe__sphere {
    width: 190px;
    height: 190px;
  }

  .cert-hero-stack {
    width: min(100%, 370px);
  }

  .project-orbit {
    width: min(100%, 340px);
  }

  .project-orbit__center strong {
    font-size: 2.8rem;
  }

  .project-orbit__node {
    width: 38px;
    height: 38px;
  }

  .cert-hero-stack__badge {
    right: 2%;
  }

  .skills-panel {
    padding: 23px;
  }

  .skills-aside__card {
    padding: 22px;
  }

  .modal {
    padding: 0;
  }

  .modal__dialog {
    width: 100%;
    max-height: 100vh;
    height: 100%;
    border-radius: 0;
  }

  .modal__top {
    padding: 14px 16px;
  }

  .cert-modal__info {
    padding: 22px 18px;
  }

  .project-modal__body {
    padding: 22px 18px;
  }

  .project-modal__scroll .project-cover {
    min-height: 185px;
    aspect-ratio: 16 / 8;
  }

  .project-modal__footer .btn {
    width: 100%;
  }

  .footer {
    padding-top: 58px;
  }

  .footer__grid {
    grid-template-columns: 1fr;
  }

  .footer__brand,
  .footer__col--contact {
    grid-column: span 1;
  }

  .footer__col--contact {
    display: block;
    padding-top: 0;
    border-top: 0;
  }

  .footer__col--contact h3 {
    width: auto;
  }

  .footer__watermark {
    font-size: clamp(6rem, 28vw, 11rem);
    opacity: 0.7;
  }

  .flash-stack {
    top: 76px;
    right: 16px;
    left: 16px;
    width: auto;
  }

  .to-top {
    right: 16px;
    bottom: 16px;
    width: 42px;
    height: 42px;
  }

  .cta-panel__actions .btn {
    width: 100%;
  }

  .toolbox-panel {
    padding: 24px 20px;
  }
}

@media (max-width: 420px) {
  .container {
    width: min(100% - 24px, var(--container));
  }

  .nav-shell {
    width: min(100% - 24px, var(--container));
  }

  .hero__title {
    font-size: 2.2rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .page-hero__title {
    font-size: 2.25rem;
  }

  .float-badge--django,
  .float-badge--js {
    display: none;
  }

  .portrait__image {
    inset: 58px 10px 10px;
  }

  .portrait__top {
    top: 20px;
    right: 20px;
    left: 20px;
  }

  .portrait__caption {
    right: 20px;
    bottom: 20px;
    left: 20px;
  }

  .stat__icon {
    display: none;
  }

  .cert-hero-stack__badge {
    padding: 9px 12px;
  }

  .page-hero__meta {
    gap: 8px 16px;
  }

  .page-hero__meta span {
    font-size: 0.65rem;
  }

  .contact-form-wrap {
    padding: 20px 15px;
  }

  .service-detail {
    padding: 20px;
  }

  .timeline__item {
    padding: 19px;
  }

  .modal__top .eyebrow {
    font-size: 0.5rem;
  }

  .project-cover__chips span:nth-child(n + 3) {
    display: none;
  }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }

  [data-skill-fill] {
    width: var(--level, 0%);
  }

  .cursor {
    display: none !important;
  }

  .marquee__track {
    animation: none;
  }

  .typewriter__caret {
    display: none;
  }
}