/* ============================================================
   MoneyRat — style.css
   Author: Marcelo Monnerat Castello
   ============================================================ */

/* ── 1. CUSTOM PROPERTIES ──────────────────────────────────── */
/* Theme colors live in css/dark.css and css/light.css */
:root {
    /* Typography */
    --f-head: 'Space Grotesk', system-ui, sans-serif;
    --f-body: 'Inter', system-ui, sans-serif;
    --f-mono: 'JetBrains Mono', 'Courier New', monospace;

    /* Spacing scale */
    --sp-1: 0.5rem;
    --sp-2: 1rem;
    --sp-3: 1.5rem;
    --sp-4: 2rem;
    --sp-6: 3rem;
    --sp-8: 4rem;
    --sp-16: 8rem;

    /* Layout */
    --max-w: 1200px;
    --nav-h: 68px;

    /* Transitions */
    --ease: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    --ease-slow: 0.65s cubic-bezier(0.4, 0, 0.2, 1);

    /* Radius */
    --r-sm: 4px;
    --r-md: 8px;
    --r-lg: 12px;
    --r-pill: 100px;
}

/* ── 2. RESET ───────────────────────────────────────────────── */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-h);
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--f-body);
    font-size: 1rem;
    line-height: 1.75;
    color: var(--c-text);
    background-color: var(--c-bg);
    overflow-x: hidden;
}

img,
video,
canvas {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul,
ol {
    list-style: none;
}

h1,
h2,
h3,
h4 {
    font-family: var(--f-head);
    line-height: 1.2;
}

p+p {
    margin-top: var(--sp-2);
}

/* ── 3. ACCESSIBILITY ───────────────────────────────────────── */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--sp-4);
    padding: 0.5rem 1rem;
    background: var(--c-accent);
    color: #000;
    font-weight: 600;
    border-radius: 0 0 var(--r-md) var(--r-md);
    z-index: 9999;
    transition: top var(--ease);
}

.skip-link:focus {
    top: 0;
}

:focus-visible {
    outline: 2px solid var(--c-accent);
    outline-offset: 3px;
    border-radius: var(--r-sm);
}

/* ── 4. LAYOUT ──────────────────────────────────────────────── */
.container {
    width: 100%;
    max-width: var(--max-w);
    margin-inline: auto;
    padding-inline: var(--sp-4);
}

.section {
    padding-block: var(--sp-16);
}

.section--alt {
    background-color: var(--c-bg-alt);
}

.section__header {
    margin-bottom: var(--sp-8);
}

.section__number {
    display: block;
    font-family: var(--f-mono);
    font-size: 0.75rem;
    color: var(--c-accent);
    letter-spacing: 0.08em;
    margin-bottom: var(--sp-1);
}

.section__title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.025em;
}

/* ── 5. BUTTONS ─────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.72rem 1.6rem;
    border-radius: var(--r-md);
    font-family: var(--f-head);
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: 0.015em;
    transition: transform var(--ease), box-shadow var(--ease), background var(--ease), color var(--ease), border-color var(--ease);
    position: relative;
    white-space: nowrap;
}

.btn--primary {
    background: var(--c-accent);
    color: #000;
}

.btn--primary:hover {
    background: var(--c-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 28px var(--c-accent-glow);
}

.btn--ghost {
    border: 1px solid var(--c-border);
    color: var(--c-text-2);
}

.btn--ghost:hover {
    border-color: var(--c-accent);
    color: var(--c-accent);
    transform: translateY(-2px);
}

.btn--full {
    width: 100%;
}

/* ── 6. TAGS ────────────────────────────────────────────────── */
.tag {
    display: inline-block;
    padding: 0.28rem 0.7rem;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-sm);
    font-family: var(--f-mono);
    font-size: 0.78rem;
    color: var(--c-text-2);
    transition: border-color var(--ease), color var(--ease);
}

.tag:hover {
    border-color: var(--c-accent);
    color: var(--c-accent);
}

.tag--sm {
    font-size: 0.70rem;
    padding: 0.18rem 0.55rem;
}

.tag--accent {
    color: var(--c-accent);
    background: var(--c-accent-dim);
    border-color: rgba(0, 230, 118, 0.28);
}

.tag--cert {
    color: var(--c-cert);
    background: var(--c-cert-bg);
    border-color: var(--c-cert-border);
}

/* ── 7. NAVIGATION ──────────────────────────────────────────── */
.nav {
    position: fixed;
    inset-block-start: 0;
    inset-inline: 0;
    height: var(--nav-h);
    z-index: 200;
    transition: background var(--ease), border-color var(--ease), backdrop-filter var(--ease);
}

.nav.scrolled {
    background: var(--nav-scrolled-bg, rgba(10, 10, 10, 0.88));
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--c-border);
}

.nav__container {
    height: 100%;
    max-width: var(--max-w);
    margin-inline: auto;
    padding-inline: var(--sp-4);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-4);
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--f-head);
    font-weight: 700;
    font-size: 1.15rem;
    transition: color var(--ease);
}

.nav__logo:hover {
    color: var(--c-accent);
}

.nav__logo-icon {
    /* Match cap-height of the 1.15rem logo text */
    width: auto;
    height: 3rem;
    aspect-ratio: 1 / 1;
    object-fit: contain;
    flex-shrink: 0;
}

/* Icon filter is handled per-theme in dark.css / light.css */

/* ── NAV CONTROLS (theme + lang toggles) ─────────────────────── */
.nav__controls {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-left: 0.5rem;
}

.ctrl-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--r-md);
    background: transparent;
    border: 1px solid transparent;
    color: var(--c-text-2);
    transition: background var(--ease), border-color var(--ease), color var(--ease), transform var(--ease);
    cursor: pointer;
    flex-shrink: 0;
}

.ctrl-btn:hover {
    background: var(--c-surface);
    border-color: var(--c-border);
    color: var(--c-text);
    transform: scale(1.08);
}

/* Sun/moon SVG icons */
.ctrl-btn__icon {
    width: 16px;
    height: 16px;
    pointer-events: none;
    transition: opacity var(--ease), transform var(--ease);
}

/* Dark theme = moon visible, sun hidden */
/* .ctrl-btn__icon--sun {
    display: none;
}

.ctrl-btn__icon--moon {
    display: none;
} */

/* Sun/moon visibility is handled per-theme in dark.css / light.css */

/* Lang toggle: flag SVG */
.ctrl-btn--lang {
    width: 40px;
    overflow: hidden;
    border-radius: var(--r-sm);
    padding: 0;
}

.lang-flag {
    display: flex;
    width: 100%;
    height: 100%;
    align-items: center;
    justify-content: center;
}

.lang-flag svg {
    width: 30px;
    height: 20px;
    border-radius: 2px;
    display: block;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.15);
}

/* When lang=pt, show PT flag / hide EN. When lang=en, reverse. */
[data-lang="pt"] .lang-flag--pt {
    display: flex;
}

[data-lang="pt"] .lang-flag--en {
    display: none;
}

[data-lang="en"] .lang-flag--pt {
    display: none;
}

[data-lang="en"] .lang-flag--en {
    display: flex;
}

/* Default (before JS sets data-lang) — show PT */
.lang-flag--pt {
    display: flex;
}

.lang-flag--en {
    display: none;
}

.nav__links {
    display: flex;
    align-items: center;
    gap: 0.125rem;
}

.nav__link {
    padding: 0.45rem 0.8rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--c-text-2);
    border-radius: var(--r-md);
    transition: background var(--ease), color var(--ease);
}

.nav__link:hover,
.nav__link.active {
    background: var(--c-surface);
    color: var(--c-text);
}

.nav__link--cta {
    background: var(--c-accent-dim) !important;
    color: var(--c-accent) !important;
    border: 1px solid rgba(0, 230, 118, 0.22);
}

.nav__link--cta:hover {
    background: var(--c-accent) !important;
    color: #000 !important;
}

.nav__hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    border-radius: var(--r-sm);
    transition: background var(--ease);
}

.nav__hamburger:hover {
    background: var(--c-surface);
}

.nav__hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--c-text);
    border-radius: 2px;
    transition: transform var(--ease), opacity var(--ease);
    transform-origin: center;
}

.nav__hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav__hamburger.open span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}

.nav__hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── 8. HERO ────────────────────────────────────────────────── */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--nav-h) var(--sp-4) var(--sp-8);
    overflow: hidden;
}

.hero__canvas {
    position: absolute;
    inset: 0;
    opacity: 0.4;
    pointer-events: none;
}

.hero__content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 820px;
}

.hero__badge {
    display: inline-block;
    padding: 0.35rem 1rem;
    border: 1px solid var(--c-border);
    border-radius: var(--r-pill);
    font-family: var(--f-mono);
    font-size: 0.75rem;
    color: var(--c-text-3);
    letter-spacing: 0.06em;
    margin-bottom: var(--sp-3);
    animation: fade-up 0.55s ease both;
}

.hero__title {
    font-size: clamp(4.5rem, 13vw, 10rem);
    font-weight: 700;
    letter-spacing: -0.035em;
    line-height: 1;
    margin-bottom: var(--sp-3);
    animation: fade-up 0.55s 0.08s ease both;
}

.hero__title-money {
    color: var(--c-text);
}

.hero__title-rat {
    color: var(--c-accent);
}

.hero__tagline {
    font-family: var(--f-mono);
    font-size: clamp(0.9rem, 2.2vw, 1.2rem);
    color: var(--c-text-2);
    min-height: 1.8em;
    margin-bottom: var(--sp-2);
    animation: fade-up 0.55s 0.16s ease both;
}

.hero__cursor {
    color: var(--c-accent);
    animation: blink 1s step-end infinite;
}

.hero__sub {
    font-size: clamp(0.95rem, 1.8vw, 1.05rem);
    color: var(--c-text-2);
    max-width: 500px;
    margin-inline: auto;
    margin-bottom: var(--sp-6);
    animation: fade-up 0.55s 0.24s ease both;
}

.hero__actions {
    display: flex;
    gap: var(--sp-2);
    justify-content: center;
    flex-wrap: wrap;
    animation: fade-up 0.55s 0.32s ease both;
}

.hero__scroll {
    position: absolute;
    bottom: var(--sp-4);
    left: 50%;
    translate: -50% 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    font-family: var(--f-mono);
    font-size: 0.65rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--c-text-3);
    animation: fade-up 0.55s 0.7s ease both;
}

.hero__scroll-line {
    width: 1px;
    height: 36px;
    background: linear-gradient(to bottom, var(--c-accent), transparent);
    animation: scroll-pulse 2.2s ease-in-out infinite;
}

/* ── 9. ABOUT ───────────────────────────────────────────────── */
.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
    align-items: start;
}

.about__lead {
    font-size: 1.15rem;
    line-height: 1.65;
    margin-bottom: var(--sp-3);
}

.about__values {
    display: grid;
    gap: var(--sp-2);
}

.value-card {
    padding: var(--sp-3);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    transition: border-color var(--ease), transform var(--ease);
}

.value-card:hover {
    border-color: var(--c-accent);
    transform: translateX(4px);
}

.value-card__icon {
    font-size: 1.5rem;
    display: block;
    margin-bottom: 0.6rem;
}

.value-card h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.value-card p {
    font-size: 0.88rem;
    color: var(--c-text-2);
}

/* ── 10. FOUNDER ────────────────────────────────────────────── */
.founder__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--sp-8);
    align-items: start;
}

.founder__avatar {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 30%;
    border: 2px solid var(--c-border);
    box-shadow: 0 0 0 5px var(--c-accent-dim);
    margin-bottom: var(--sp-3);
}

.founder__name {
    font-size: clamp(1.4rem, 3vw, 1.9rem);
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.founder__subtitle {
    display: block;
    font-family: var(--f-mono);
    font-size: 0.78rem;
    color: var(--c-accent);
    margin-bottom: var(--sp-3);
}

.founder__langs {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-top: var(--sp-3);
}

.lang-badge {
    display: inline-block;
    padding: 0.35rem 0.9rem;
    border-radius: var(--r-pill);
    font-size: 0.82rem;
    font-weight: 500;
}

.lang-badge--primary {
    background: var(--c-accent-dim);
    color: var(--c-accent);
    border: 1px solid rgba(0, 230, 118, 0.22);
}

.lang-badge--secondary {
    background: var(--c-surface);
    color: var(--c-text-2);
    border: 1px solid var(--c-border);
}

.skills__heading {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--c-text-3);
    margin-bottom: var(--sp-3);
}

.skills__group {
    margin-bottom: var(--sp-3);
}

.skills__label {
    display: block;
    font-family: var(--f-mono);
    font-size: 0.7rem;
    color: var(--c-text-3);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.5rem;
}

.skills__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
}

/* ── 11. PROJECTS ───────────────────────────────────────────── */
.projects__grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 540px), 1fr));
    gap: var(--sp-4);
}

.project-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    padding: var(--sp-4);
    transition: border-color var(--ease), box-shadow var(--ease);
}

.project-card:hover {
    border-color: var(--c-accent);
    box-shadow: 0 0 50px rgba(0, 230, 118, 0.06);
}

.project-card__header {
    display: flex;
    align-items: flex-start;
    gap: var(--sp-2);
    margin-bottom: var(--sp-3);
}

.project-card__emoji {
    font-size: 2.5rem;
    line-height: 1;
}

.project-card__app-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center center;
    flex-shrink: 0;
    border: 2px solid var(--c-border);
    box-shadow: 0 0 0 4px var(--c-accent-dim);
}

.project-card__title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.3rem;
}

.project-card__badge {
    display: inline-block;
    font-family: var(--f-mono);
    font-size: 0.68rem;
    padding: 0.18rem 0.6rem;
    border-radius: var(--r-sm);
}

.project-card__badge--wip {
    color: var(--c-wip);
    background: var(--c-wip-bg);
    border: 1px solid var(--c-wip-border);
}

.project-card__lead {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: var(--sp-3);
}

.chat-demo {
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    padding: var(--sp-2);
    margin-block: var(--sp-3);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.chat-bubble {
    max-width: 75%;
    padding: 0.45rem 0.9rem;
    border-radius: var(--r-lg);
    font-size: 0.875rem;
}

.chat-bubble--out {
    background: var(--c-card);
    border: 1px solid var(--c-border);
    align-self: flex-end;
}

.chat-bubble--in {
    background: var(--c-accent-dim);
    border: 1px solid rgba(0, 230, 118, 0.22);
    color: var(--c-accent);
    align-self: flex-start;
}

.project-card__features {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    font-size: 0.875rem;
    color: var(--c-text-2);
    margin-block: var(--sp-3);
}

.project-card__stack {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    padding-top: var(--sp-3);
    border-top: 1px solid var(--c-border);
}

/* ── 12. SERVICES ───────────────────────────────────────────── */
.services__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--sp-3);
}

.service-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    padding: var(--sp-4);
    transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.service-card:hover {
    border-color: var(--c-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 36px rgba(0, 230, 118, 0.06);
}

.service-card__icon {
    font-size: 2rem;
    display: block;
    margin-bottom: var(--sp-2);
}

.service-card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.service-card p {
    font-size: 0.875rem;
    color: var(--c-text-2);
    line-height: 1.6;
}

/* ── 13. TIMELINE ───────────────────────────────────────────── */
.timeline {
    position: relative;
    padding-left: var(--sp-4);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 6px;
    bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--c-accent) 0%, transparent 100%);
    opacity: 0.5;
}

.timeline__item {
    position: relative;
    padding-bottom: var(--sp-8);
}

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

.timeline__dot {
    position: absolute;
    left: calc(-1 * var(--sp-4) - 4px);
    top: 7px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--c-accent);
    border: 2px solid var(--c-bg);
    box-shadow: 0 0 0 3px var(--c-accent-dim);
}

.timeline__content {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    padding: var(--sp-3);
    transition: border-color var(--ease);
}

.timeline__item:hover .timeline__content {
    border-color: var(--c-border-hover);
}

.timeline__meta {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 0.4rem;
}

.timeline__company {
    font-family: var(--f-head);
    font-weight: 700;
    font-size: 1rem;
}

.timeline__period {
    font-family: var(--f-mono);
    font-size: 0.72rem;
    color: var(--c-accent);
    white-space: nowrap;
}

.timeline__role {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--c-text-2);
    margin-bottom: 0.6rem;
}

.timeline__tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: var(--sp-2);
    padding-top: var(--sp-2);
    border-top: 1px solid var(--c-border);
}

/* ── 14. CONTACT ────────────────────────────────────────────── */
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1.6fr;
    gap: var(--sp-8);
    align-items: start;
}

.contact__lead {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--sp-3);
}

.contact__email {
    display: block;
    font-family: var(--f-mono);
    font-size: 1.05rem;
    color: var(--c-accent);
    margin-bottom: var(--sp-3);
    transition: letter-spacing var(--ease);
}

.contact__email:hover {
    letter-spacing: 0.04em;
}

.contact__links {
    display: flex;
    gap: var(--sp-2);
    flex-wrap: wrap;
    margin-bottom: var(--sp-4);
}

.contact__link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--c-text-2);
    border-bottom: 1px solid transparent;
    padding-bottom: 1px;
    transition: color var(--ease), border-color var(--ease);
}

.contact__link:hover {
    color: var(--c-accent);
    border-bottom-color: var(--c-accent);
}

.contact__location {
    font-family: var(--f-mono);
    font-size: 0.8rem;
    color: var(--c-text-3);
}

/* ── 15. FORM ───────────────────────────────────────────────── */
.form__group {
    margin-bottom: var(--sp-3);
}

.form__label {
    display: block;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--c-text-2);
    margin-bottom: 0.4rem;
}

.form__input,
.form__textarea {
    width: 100%;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    padding: 0.7rem 1rem;
    color: var(--c-text);
    font-family: var(--f-body);
    font-size: 0.95rem;
    transition: border-color var(--ease), box-shadow var(--ease);
    outline: none;
}

.form__input:hover,
.form__textarea:hover {
    border-color: var(--c-border-hover);
}

.form__input:focus,
.form__textarea:focus {
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px var(--c-accent-dim);
}

.form__input::placeholder,
.form__textarea::placeholder {
    color: var(--c-text-3);
}

.form__textarea {
    resize: vertical;
    min-height: 130px;
}

.form__status {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    text-align: center;
    min-height: 1.4em;
}

.form__status.success {
    color: var(--c-accent);
}

.form__status.error {
    color: #ff5252;
}

/* ── LANGUAGE SELECTION MODAL ─────────────────────────────── */
.lang-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--sp-4);
    transition: opacity 0.3s ease, visibility 0.3s ease;
    opacity: 1;
    visibility: visible;
}

.lang-modal--hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.lang-modal__backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.lang-modal__card {
    position: relative;
    z-index: 1;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: 1.5rem;
    padding: var(--sp-8) var(--sp-6);
    max-width: 480px;
    width: 100%;
    text-align: center;
    box-shadow: 0 32px 64px rgba(0, 0, 0, 0.4);
    animation: modal-in 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.lang-modal--hidden .lang-modal__card {
    animation: none;
}

@keyframes modal-in {
    from {
        transform: scale(0.88) translateY(24px);
        opacity: 0;
    }

    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.lang-modal__eyebrow {
    font-size: 1.5rem;
    margin-bottom: var(--sp-2);
    opacity: 0.75;
}

.lang-modal__brand {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: var(--sp-2);
}

.lang-modal__brand-icon {
    width: 3rem;
    display: block;
}

.lang-modal__brand-text {
    font-family: var(--f-head);
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    color: var(--c-text);
}

.lang-modal__title {
    font-family: var(--f-head);
    font-size: clamp(1.4rem, 4vw, 2rem);
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--c-text);
}

.lang-modal__sub {
    color: var(--c-text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--sp-6);
}

.lang-modal__options {
    display: flex;
    gap: var(--sp-4);
    justify-content: center;
}

.lang-modal__btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-4) var(--sp-3);
    background: var(--c-card);
    border: 2px solid var(--c-border);
    border-radius: 1rem;
    cursor: pointer;
    transition: border-color var(--ease), transform var(--ease), box-shadow var(--ease);
    color: var(--c-text);
    font-family: var(--f-body);
}

.lang-modal__btn:hover,
.lang-modal__btn:focus-visible {
    border-color: var(--c-accent);
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(0, 230, 118, 0.2);
    outline: none;
}

.lang-modal__flag {
    width: 90px;
    height: 60px;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
    flex-shrink: 0;
}

.lang-modal__flag svg {
    width: 100%;
    height: 100%;
    display: block;
}

.lang-modal__btn span {
    font-size: 1.05rem;
    font-weight: 600;
}

.lang-modal__btn small {
    font-size: 0.8rem;
    color: var(--c-text-muted);
}

@media (max-width: 420px) {
    .lang-modal__options {
        flex-direction: column;
        align-items: stretch;
    }

    .lang-modal__btn {
        flex-direction: row;
        gap: var(--sp-3);
    }
}

/* ── 16. FOOTER ─────────────────────────────────────────────── */
.footer {
    padding-block: var(--sp-4);
    border-top: 1px solid var(--c-border);
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--sp-2);
    font-size: 0.82rem;
    color: var(--c-text-3);
}

.footer__logo {
    font-family: var(--f-head);
    font-weight: 700;
    font-size: 1rem;
    color: var(--c-text-2);
}

/* ── 17. SCROLL REVEAL ──────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(22px);
    transition: opacity var(--ease-slow), transform var(--ease-slow);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ── 18. KEYFRAMES ──────────────────────────────────────────── */
@keyframes fade-up {
    from {
        opacity: 0;
        transform: translateY(18px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

@keyframes scroll-pulse {
    0% {
        transform: scaleY(0);
        transform-origin: top;
    }

    45% {
        transform: scaleY(1);
        transform-origin: top;
    }

    55% {
        transform: scaleY(1);
        transform-origin: bottom;
    }

    100% {
        transform: scaleY(0);
        transform-origin: bottom;
    }
}

/* ── 19. REDUCED MOTION ─────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }

    html {
        scroll-behavior: auto;
    }
}

/* ── 20. RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1024px) {
    .services__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --sp-16: 5rem;
        --sp-8: 3rem;
    }

    /* Mobile nav */
    .nav__links {
        display: none;
        position: fixed;
        inset: var(--nav-h) 0 0 0;
        background: rgba(10, 10, 10, 0.96);
        backdrop-filter: blur(14px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: var(--sp-2);
        z-index: 199;
    }

    [data-theme="light"] .nav__links {
        background: rgba(245, 245, 245, 0.96);
    }

    .nav__links.open {
        display: flex;
    }

    .nav__link {
        font-size: 1.1rem;
    }

    .nav__hamburger {
        display: flex;
    }

    /* Keep controls always visible on mobile */
    .nav__controls {
        margin-left: 0;
    }

    .about__grid,
    .founder__grid,
    .contact__grid {
        grid-template-columns: 1fr;
    }

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

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

    .timeline__meta {
        flex-direction: column;
        gap: 0.2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding-inline: var(--sp-2);
    }

    .footer__inner {
        flex-direction: column;
        text-align: center;
    }

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