/* Helena Duarte — landing (Nive Sistemas) */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
}

body {
    margin: 0;
    font-family: var(--font-body);
    font-size: var(--text-body);
    color: var(--ink);
    background: var(--paper);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

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

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

button {
    font: inherit;
    color: inherit;
    background: none;
    border: 0;
    cursor: pointer;
    padding: 0;
}

ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1,
h2,
h3,
p {
    margin: 0;
}

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

.skip-link {
    position: absolute;
    left: -999px;
    top: 0;
    z-index: 100;
    background: var(--ink);
    color: var(--paper);
    padding: 0.75rem 1rem;
    border-radius: 0 0 var(--radius-sm) 0;
}

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

/* ------------------------------------------------------------------ Layout */

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 1.25rem;
}

@media (min-width: 768px) {
    .container {
        padding-inline: 2rem;
    }
}

.section {
    padding-block: var(--space-8);
}

@media (min-width: 768px) {
    .section {
        padding-block: var(--space-9);
    }
}

.section--soft {
    background: var(--paper-deep);
}

.section--accent {
    background: var(--accent);
    color: var(--on-accent);
}

/* ------------------------------------------------------------------ Type */

.display {
    font-family: var(--font-display);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.12;
}

.meta {
    font-size: var(--text-meta);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 500;
}

.lead {
    font-size: var(--text-lead);
    color: var(--ink-soft);
    max-width: 36rem;
    line-height: 1.7;
}

/* ------------------------------------------------------------------ Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    min-height: 3rem;
    padding: 0.85rem 1.45rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.98rem;
    letter-spacing: 0.01em;
    transition: transform var(--t-fast), background var(--t), color var(--t), box-shadow var(--t);
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.98);
}

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

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

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

.btn-ghost:hover {
    border-color: rgba(28, 31, 29, 0.28);
    background: rgba(255, 255, 255, 0.55);
}

.btn-on-accent {
    background: var(--on-accent);
    color: var(--accent-strong);
}

.btn-on-accent:hover {
    background: #ffffff;
}

.btn-icon {
    width: 1.15rem;
    height: 1.15rem;
    flex-shrink: 0;
}

/* ------------------------------------------------------------------ Header */

/* Concept project banner */
.concept-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 120;
    height: var(--concept-banner-h);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 0.75rem;
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    background: #1a1c1a;
    color: rgba(255, 255, 255, 0.78);
    line-height: 1;
}

.site-header {
    position: fixed;
    inset: var(--concept-banner-h) 0 auto;
    z-index: var(--z-header);
    height: var(--header-h);
    display: flex;
    align-items: center;
    transition: background var(--t), box-shadow var(--t);
}

.site-header.is-scrolled {
    background: var(--paper);
    box-shadow: 0 1px 0 var(--line);
}

.nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    height: var(--header-h);
}

.nav-brand {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    min-width: 0;
}

.nav-brand-name {
    font-family: var(--font-display);
    font-size: 1.2rem;
    line-height: 1.1;
    letter-spacing: -0.01em;
}

.nav-brand-meta {
    font-size: 0.72rem;
    color: var(--ink-mute);
    letter-spacing: 0.02em;
}

.nav-links {
    display: none;
    align-items: center;
    gap: 1.75rem;
}

.nav-link {
    font-size: 0.92rem;
    color: var(--ink-soft);
    transition: color var(--t-fast);
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--ink);
}

.nav-cta {
    display: none;
}

.menu-toggle {
    width: 2.5rem;
    height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

.menu-toggle svg {
    width: 1.35rem;
    height: 1.35rem;
}

@media (min-width: 960px) {
    .nav-links,
    .nav-cta {
        display: flex;
    }

    .menu-toggle {
        display: none;
    }
}

/* Mobile menu */

.mobile-menu {
    position: fixed;
    inset: 0;
    z-index: var(--z-menu);
    pointer-events: none;
    visibility: hidden;
}

.mobile-menu.is-open {
    pointer-events: auto;
    visibility: visible;
}

.mobile-menu-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(28, 31, 29, 0.4);
    opacity: 0;
    transition: opacity var(--t);
}

.mobile-menu.is-open .mobile-menu-backdrop {
    opacity: 1;
}

.mobile-menu-panel {
    position: absolute;
    top: 0;
    right: 0;
    width: min(100%, 20rem);
    height: 100%;
    height: 100dvh;
    background: var(--paper);
    padding: 1.25rem 1.25rem 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transform: translateX(100%);
    transition: transform var(--t);
    box-shadow: var(--shadow-soft);
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.mobile-menu.is-open .mobile-menu-panel {
    transform: translateX(0);
}

.mobile-menu-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.mobile-menu-top .nav-brand-name {
    font-size: 1.1rem;
}

.mobile-nav-list {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.mobile-nav-link {
    display: block;
    padding: 0.85rem 0.25rem;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--line);
}

.mobile-menu .btn {
    margin-top: auto;
    width: 100%;
}

/* ------------------------------------------------------------------ Hero */

.hero {
    position: relative;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    padding-top: calc(var(--header-h) + var(--concept-banner-h) + 1.5rem);
    padding-bottom: var(--space-7);
}

.hero-grid {
    display: grid;
    gap: var(--space-7);
    align-items: center;
}

.hero-copy {
    max-width: 36rem;
}

.hero-identity {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    margin-bottom: var(--space-5);
}

.hero-role {
    font-size: var(--text-small);
    color: var(--ink-mute);
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--text-hero);
    font-weight: 400;
    letter-spacing: -0.025em;
    line-height: 1.1;
    margin-bottom: var(--space-5);
    max-width: 14ch;
}

.hero-title em {
    font-style: italic;
    font-weight: 400;
    padding-bottom: 0.08em;
}

.hero-sub {
    font-size: var(--text-lead);
    color: var(--ink-soft);
    max-width: 32rem;
    margin-bottom: var(--space-5);
    line-height: 1.7;
}

.hero-signature {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    margin-bottom: var(--space-6);
}

.hero-signature-name {
    font-family: var(--font-display);
    font-size: clamp(1.2rem, 1.05rem + 0.7vw, 1.45rem);
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.hero-signature-meta {
    font-size: var(--text-small);
    color: var(--ink-mute);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.hero-visual {
    position: relative;
    justify-self: stretch;
}

.hero-frame {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 5;
    background: var(--paper-deep);
}

.hero-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 18%;
    filter: saturate(0.9) contrast(0.98);
}

.hero-frame::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(160deg, rgba(243, 244, 242, 0.08), rgba(28, 31, 29, 0.12));
    pointer-events: none;
}

@media (min-width: 960px) {
    .hero {
        padding-top: calc(var(--header-h) + var(--concept-banner-h) + 2rem);
        padding-bottom: var(--space-8);
    }

    .hero-grid {
        grid-template-columns: 1.1fr 0.9fr;
        gap: var(--space-8);
    }

    .hero-title {
        max-width: 12ch;
    }

    .hero-frame {
        aspect-ratio: 5 / 6;
        max-height: min(68vh, 560px);
        margin-left: auto;
        width: min(100%, 420px);
    }
}

/* ------------------------------------------------------------------ About */

.about-grid {
    display: grid;
    gap: var(--space-7);
    align-items: center;
}

.about-media {
    order: -1;
}

.about-frame {
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4 / 5;
    background: var(--paper-deep);
    max-width: 28rem;
}

.about-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.78) contrast(0.95);
}

.about-copy h2 {
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: var(--space-5);
    max-width: 16ch;
}

.about-lead {
    color: var(--ink-soft);
    max-width: 34rem;
    margin-bottom: var(--space-6);
    line-height: 1.75;
}

.about-points {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--line);
}

.about-points li {
    padding-block: 1.1rem;
    border-bottom: 1px solid var(--line);
    color: var(--ink-soft);
    max-width: 36rem;
    line-height: 1.65;
}

@media (min-width: 960px) {
    .about-grid {
        grid-template-columns: 0.9fr 1.1fr;
        gap: var(--space-9);
    }

    .about-media {
        order: 0;
    }

    .about-frame {
        max-width: none;
        width: 100%;
    }
}

/* ------------------------------------------------------------------ Help */

.help-head {
    margin-bottom: var(--space-7);
    max-width: 28rem;
}

.help-head h2 {
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.help-list {
    display: grid;
    gap: 0;
    border-top: 1px solid var(--line);
}

.help-item {
    display: grid;
    gap: 0.65rem;
    padding-block: 1.6rem;
    border-bottom: 1px solid var(--line);
}

.help-item h3 {
    font-family: var(--font-display);
    font-size: var(--text-h3);
    font-weight: 400;
    letter-spacing: -0.01em;
}

.help-item p {
    color: var(--ink-soft);
    max-width: 34rem;
    line-height: 1.7;
}

@media (min-width: 768px) {
    .help-item {
        grid-template-columns: minmax(10rem, 14rem) 1fr;
        gap: var(--space-6);
        align-items: baseline;
        padding-block: 1.85rem;
    }
}

/* ------------------------------------------------------------------ Steps */

.steps-head {
    margin-bottom: var(--space-7);
    max-width: 24rem;
}

.steps-head h2 {
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.steps-list {
    display: grid;
    gap: var(--space-6);
}

.step {
    display: grid;
    gap: 0.75rem;
    max-width: 28rem;
}

.step-number {
    font-family: var(--font-display);
    font-size: 1rem;
    color: var(--accent);
    letter-spacing: 0.04em;
}

.step h3 {
    font-size: 1.15rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}

.step p {
    color: var(--ink-soft);
    line-height: 1.7;
}

@media (min-width: 900px) {
    .steps-list {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-7);
    }

    .step {
        max-width: none;
        padding-right: var(--space-4);
        border-right: 1px solid var(--line);
    }

    .step:last-child {
        border-right: 0;
        padding-right: 0;
    }
}

/* ------------------------------------------------------------------ Breath */

.breath {
    padding-block: var(--space-9);
}

.breath-inner {
    max-width: 28rem;
    margin-inline: auto;
    text-align: center;
}

.breath blockquote {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.55rem, 1.2rem + 1.6vw, 2.2rem);
    font-weight: 400;
    font-style: italic;
    line-height: 1.35;
    letter-spacing: -0.015em;
    padding-bottom: 0.15em;
}

/* ------------------------------------------------------------------ Final CTA */

.final-cta {
    text-align: center;
}

.final-cta-inner {
    max-width: 28rem;
    margin-inline: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-6);
}

.final-cta h2 {
    font-family: var(--font-display);
    font-size: var(--text-h2);
    font-weight: 400;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.final-note {
    color: var(--ink-mute);
    font-size: var(--text-small);
}

/* ------------------------------------------------------------------ Footer */

.site-footer {
    border-top: 1px solid var(--line);
    padding-block: var(--space-7) var(--space-6);
}

.footer-grid {
    display: grid;
    gap: var(--space-6);
}

.footer-brand {
    font-family: var(--font-display);
    font-size: 1.35rem;
    letter-spacing: -0.01em;
    margin-bottom: 0.4rem;
}

.footer-meta {
    color: var(--ink-mute);
    font-size: var(--text-small);
    line-height: 1.6;
}

.footer-col h3 {
    font-size: var(--text-meta);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 500;
    margin-bottom: 0.85rem;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}

.footer-col a {
    color: var(--ink-soft);
    font-size: var(--text-small);
    transition: color var(--t-fast);
}

.footer-col a:hover {
    color: var(--ink);
}

.footer-privacy {
    margin-top: var(--space-7);
    padding-top: var(--space-5);
    border-top: 1px solid var(--line);
    max-width: 42rem;
}

.footer-privacy h3 {
    font-size: var(--text-meta);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--ink-mute);
    font-weight: 500;
    margin-bottom: 0.75rem;
}

.footer-privacy p {
    color: var(--ink-mute);
    font-size: var(--text-small);
    line-height: 1.7;
}

.footer-bottom {
    margin-top: var(--space-6);
    padding-top: var(--space-5);
    border-top: 1px solid var(--line);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    font-size: 0.82rem;
    color: var(--ink-mute);
}

.footer-bottom a {
    text-decoration: underline;
    text-underline-offset: 2px;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: 1.4fr 1fr 1fr;
        gap: var(--space-7);
    }

    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
    }
}

/* ------------------------------------------------------------------ Float */

.float-cta {
    position: fixed;
    right: 1.1rem;
    bottom: 1.1rem;
    z-index: var(--z-float);
    width: 3.25rem;
    height: 3.25rem;
    border-radius: var(--radius-md);
    background: var(--accent);
    color: var(--on-accent);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-soft);
    transition: transform var(--t-fast), background var(--t);
}

.float-cta:hover {
    background: var(--accent-strong);
    transform: translateY(-2px);
}

.float-cta:active {
    transform: scale(0.98);
}

.float-cta svg {
    width: 1.35rem;
    height: 1.35rem;
}

@media (min-width: 960px) {
    .float-cta {
        right: 1.5rem;
        bottom: 1.5rem;
    }
}

/* ------------------------------------------------------------------ Reveal */

.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity var(--t-slow), transform var(--t-slow);
    transition-delay: var(--delay, 0s);
}

.reveal.is-visible {
    opacity: 1;
    transform: none;
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .btn,
    .float-cta,
    .nav-link,
    .mobile-menu-panel,
    .mobile-menu-backdrop {
        transition: none !important;
    }
}