@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
--bg:         #ffffff;
--bg-alt:     #f7f8fc;
--surface:    #ffffff;
--surface2:   #f1f3f9;

--ink:        #151a2d;
--ink-soft:   #50576d;
--muted:      #8b92a6;

--line:       rgba(21, 26, 45, 0.08);
--line-strong: rgba(21, 26, 45, 0.14);

/* ─── WiseScroll cool accent palette ─── */
--accent:     #4f6bff;
--accent-hover: #4059e8;
--accent-bg:  rgba(79, 107, 255, 0.07);
--accent-line: rgba(79, 107, 255, 0.24);

--royal:      #705cff;
--royal-bg:   rgba(112, 92, 255, 0.07);

--error:      #d64545;

--font-main:  'Inter', system-ui, sans-serif;

--radius-sm:  8px;
--radius-md:  14px;
--radius-lg:  20px;

--shadow-sm:
0 1px 3px rgba(21, 26, 45, 0.05),
0 1px 2px rgba(21, 26, 45, 0.04);

--shadow-md:
0 8px 24px rgba(21, 26, 45, 0.07);

--shadow-lg:
0 16px 48px rgba(21, 26, 45, 0.10);
}

body.dark-mode {
--bg:         #0c1020;
--bg-alt:     #111629;
--surface:    #151a2d;
--surface2:   #1b2137;

--ink:        #eef1ff;
--ink-soft:   #b5bbd0;
--muted:      #727a94;

--line:       rgba(255, 255, 255, 0.08);
--line-strong: rgba(255, 255, 255, 0.14);

--accent:     #6b82ff;
--accent-hover: #8093ff;
--accent-bg:  rgba(107, 130, 255, 0.12);
--accent-line: rgba(107, 130, 255, 0.30);

--royal:      #8a7cff;
--royal-bg:   rgba(138, 124, 255, 0.12);

--shadow-sm:
0 1px 3px rgba(0, 0, 0, 0.3);

--shadow-md:
0 8px 24px rgba(0, 0, 0, 0.35);

--shadow-lg:
0 16px 48px rgba(0, 0, 0, 0.45);
}

body {
font-family: var(--font-main);
background: var(--bg);
color: var(--ink-soft);
line-height: 1.6;
font-weight: 400;
transition: background 0.3s ease, color 0.3s ease;
-webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
html { scroll-behavior: smooth; }

.container {
width: 100%;
max-width: 1120px;
margin: 0 auto;
padding: 0 40px;
}

.navbar {
background: rgba(255, 255, 255, 0.82);
backdrop-filter: blur(14px);
-webkit-backdrop-filter: blur(14px);
border-bottom: 1px solid var(--line);
position: sticky;
top: 0;
z-index: 100;
}

body.dark-mode .navbar {
background: rgba(12, 16, 32, 0.82);
}

.nav-content {
display: flex;
align-items: center;
justify-content: space-between;
height: 68px;
}

.logo {
font-family: var(--font-main);
font-size: 18px;
font-weight: 800;
letter-spacing: -0.02em;
color: var(--ink);
display: flex;
align-items: center;
gap: 9px;
}

.logo::before {
content: 'W';
display: flex;
align-items: center;
justify-content: center;
width: 28px;
height: 28px;
border-radius: 8px;
background: var(--ink);
color: var(--bg);
font-size: 14px;
font-weight: 800;
}

body.dark-mode .logo::before {
background: var(--accent);
color: #0c1020;
}

.nav-links {
display: flex;
gap: 4px;
position: absolute;
left: 50%;
transform: translateX(-50%);
}

.nav-links a {
font-size: 14px;
font-weight: 600;
color: var(--ink-soft);
padding: 8px 16px;
border-radius: var(--radius-sm);
transition: color 0.2s, background 0.2s;
letter-spacing: 0.01em;
}

.nav-links a:hover {
color: var(--ink);
background: var(--surface2);
}

.nav-links a.active {
color: var(--ink);
}

.theme-toggle {
width: 38px;
height: 38px;
border-radius: var(--radius-sm);
border: 1px solid var(--line-strong);
background: var(--surface);
color: var(--ink-soft);
font-size: 15px;
cursor: pointer;
display: flex;
align-items: center;
justify-content: center;
transition: all 0.2s;
}

.theme-toggle:hover {
color: var(--accent);
border-color: var(--accent-line);
}

.badge {
display: inline-flex;
align-items: center;
gap: 7px;
font-size: 12px;
font-weight: 700;
letter-spacing: 0.06em;
text-transform: uppercase;
color: var(--accent);
background: var(--accent-bg);
padding: 6px 13px;
border-radius: 99px;
margin-bottom: 22px;
}

.badge::before {
content: '';
width: 6px;
height: 6px;
border-radius: 50%;
background: var(--accent);
flex-shrink: 0;
}

.btn {
display: inline-flex;
align-items: center;
justify-content: center;
gap: 8px;
font-family: var(--font-main);
font-size: 15px;
font-weight: 700;
padding: 15px 26px;
border-radius: var(--radius-sm);
transition: all 0.18s ease;
cursor: pointer;
border: none;
text-decoration: none;
white-space: nowrap;
letter-spacing: -0.01em;
}

.btn-primary {
background: var(--accent);
color: #ffffff;
box-shadow: 0 4px 14px rgba(79, 107, 255, 0.24);
}

.btn-primary:hover {
background: var(--accent-hover);
transform: translateY(-1px);
box-shadow: 0 6px 20px rgba(79, 107, 255, 0.30);
}

.btn-secondary {
background: transparent;
color: var(--ink);
border: 1.5px solid var(--line-strong);
}

.btn-secondary:hover {
border-color: var(--ink);
background: var(--surface2);
}

.btn-ghost {
background: transparent;
color: var(--ink);
padding: 0;
font-size: 15px;
font-weight: 600;
border-bottom: 1.5px solid var(--line-strong);
border-radius: 0;
padding-bottom: 2px;
}

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

.full-width { width: 100%; }

.nav-cta {
padding: 10px 20px;
font-size: 14px;
}

/* ─── Hero ─── */

.hero {
padding: 108px 0 96px;
background:
radial-gradient(
ellipse 900px 500px at 82% -10%,
var(--royal-bg),
transparent 60%
),
var(--bg);
}

.hero-grid {
display: grid;
grid-template-columns: 1.05fr 0.95fr;
gap: 64px;
align-items: center;
}

.hero-text h1 {
font-size: 62px;
line-height: 1.04;
font-weight: 800;
letter-spacing: -0.035em;
margin-bottom: 24px;
color: var(--ink);
}

.hero-text h1 em {
font-style: normal;
color: var(--accent);
}

.hero-description {
font-size: 18px;
color: var(--ink-soft);
line-height: 1.65;
margin-bottom: 30px;
font-weight: 400;
max-width: 460px;
}

.hero-buttons {
display: flex;
align-items: center;
gap: 24px;
flex-wrap: wrap;
}

.app-status-banner {
display: inline-flex;
align-items: center;
gap: 9px;
background: var(--surface2);
border: 1px solid var(--line);
border-radius: 99px;
padding: 8px 16px 8px 12px;
margin-bottom: 28px;
font-size: 13px;
font-weight: 600;
color: var(--ink-soft);
}

.status-dot {
width: 7px;
height: 7px;
border-radius: 50%;
background: #22c55e;
flex-shrink: 0;
box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
}

.status-pill-ai {
font-size: 11px;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.04em;
color: var(--royal);
background: var(--royal-bg);
padding: 3px 9px;
border-radius: 99px;
margin-left: 4px;
}

/* ─── Feed Preview ─── */

.feed-preview {
background: var(--surface);
border-radius: var(--radius-lg);
border: 1px solid var(--line);
box-shadow: var(--shadow-lg);
overflow: hidden;
}

.feed-header {
padding: 15px 20px;
border-bottom: 1px solid var(--line);
display: flex;
align-items: center;
gap: 8px;
background: var(--surface2);
}

.feed-title-bar {
font-size: 12px;
font-weight: 700;
letter-spacing: 0.02em;
color: var(--muted);
}

.feed-body {
padding: 14px;
display: flex;
flex-direction: column;
gap: 10px;
}

.paper-card-new {
background: var(--surface);
border: 1px solid var(--line);
border-radius: var(--radius-md);
padding: 16px 18px;
cursor: pointer;
transition: all 0.18s ease;
}

.paper-card-new:hover {
border-color: var(--accent-line);
transform: translateX(2px);
}

.paper-card-new.featured {
border-color: var(--accent-line);
background: var(--accent-bg);
}

.paper-tag-new {
display: inline-block;
font-size: 10px;
font-weight: 700;
letter-spacing: 0.06em;
text-transform: uppercase;
padding: 4px 9px;
border-radius: 99px;
margin-bottom: 9px;
}

.tag-ai {
background: var(--accent-bg);
color: var(--accent);
}

.tag-phys {
background: var(--royal-bg);
color: var(--royal);
}

.tag-bio {
background: var(--surface2);
color: var(--ink-soft);
}

.paper-card-new h3 {
font-size: 13.5px;
font-weight: 700;
line-height: 1.45;
color: var(--ink);
margin-bottom: 6px;
}

.paper-card-new p {
font-size: 12.5px;
color: var(--muted);
line-height: 1.6;
}

.paper-card-new.muted h3 {
color: var(--ink-soft);
font-weight: 600;
}

/* ─── Shared Typography ─── */

.section-subtitle {
font-size: 17px;
color: var(--ink-soft);
line-height: 1.7;
max-width: 560px;
margin-bottom: 52px;
}

/* ─── Features ─── */

.features {
padding: 104px 0;
background: var(--bg-alt);
}

.features h2 {
font-size: 38px;
font-weight: 800;
letter-spacing: -0.03em;
margin-top: 14px;
margin-bottom: 16px;
color: var(--ink);
}

.feature-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 20px;
}

.feature-card {
background: var(--surface);
border: 1px solid var(--line);
border-radius: var(--radius-lg);
padding: 30px 26px;
transition: all 0.2s ease;
}

.feature-card:hover {
transform: translateY(-3px);
box-shadow: var(--shadow-md);
border-color: var(--line-strong);
}

.feature-icon {
width: 42px;
height: 42px;
border-radius: var(--radius-sm);
background: var(--ink);
color: var(--bg);
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 20px;
}

.feature-card h3 {
font-size: 18px;
font-weight: 700;
line-height: 1.3;
margin-bottom: 10px;
color: var(--ink);
letter-spacing: -0.01em;
}

.feature-card p {
font-size: 14.5px;
color: var(--ink-soft);
line-height: 1.65;
}

/* ─── Problem / Solution ─── */

.problem-solution {
padding: 104px 0;
background: var(--bg);
}

.ps-row {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 72px;
align-items: center;
padding: 56px 0;
}

.ps-row + .ps-row {
border-top: 1px solid var(--line);
}

.ps-row.reverse .ps-visual { order: 2; }
.ps-row.reverse .ps-copy { order: 1; }

.ps-kicker {
font-size: 12px;
font-weight: 700;
letter-spacing: 0.08em;
text-transform: uppercase;
margin-bottom: 14px;
}

.ps-kicker.is-problem { color: var(--muted); }
.ps-kicker.is-solution { color: var(--accent); }

.ps-copy h3 {
font-size: 28px;
font-weight: 800;
letter-spacing: -0.025em;
color: var(--ink);
margin-bottom: 16px;
line-height: 1.2;
}

.ps-copy p {
font-size: 16px;
color: var(--ink-soft);
line-height: 1.7;
max-width: 440px;
}

.ps-visual {
display: flex;
align-items: center;
justify-content: center;
}

.ps-icon-panel {
width: 100%;
aspect-ratio: 4 / 3;
background: var(--surface2);
border: 1px solid var(--line);
border-radius: var(--radius-lg);
display: flex;
align-items: center;
justify-content: center;
}

.ps-icon-panel.solution-panel {
background: var(--accent-bg);
border-color: var(--accent-line);
}

.ps-icon-panel svg {
width: 56px;
height: 56px;
}

.ps-icon-panel.solution-panel svg {
color: var(--accent);
}

.ps-icon-panel:not(.solution-panel) svg {
color: var(--muted);
}

/* ─── How it works ─── */

.how-it-works {
padding: 104px 0;
background: var(--bg-alt);
border-top: 1px solid var(--line);
border-bottom: 1px solid var(--line);
}

.steps-row {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 20px;
margin-top: 12px;
}

.step-card {
background: var(--surface);
border: 1px solid var(--line);
border-radius: var(--radius-lg);
padding: 32px 28px;
position: relative;
}

.step-number {
font-size: 14px;
font-weight: 800;
color: var(--accent);
background: var(--accent-bg);
width: 34px;
height: 34px;
border-radius: var(--radius-sm);
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 22px;
}

.step-card h3 {
font-size: 18px;
font-weight: 700;
letter-spacing: -0.01em;
color: var(--ink);
margin-bottom: 10px;
}

.step-card p {
font-size: 14.5px;
color: var(--ink-soft);
line-height: 1.65;
}

/* ─── Why Section ─── */

.why-section {
padding: 104px 0;
}

.why-inner {
background: var(--surface);
border-radius: var(--radius-lg);
border: 1px solid var(--line);
overflow: hidden;
}

.why-top {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 0;
}

.why-left {
padding: 56px 52px;
border-right: 1px solid var(--line);
}

.why-left h2 {
font-size: 30px;
font-weight: 800;
letter-spacing: -0.025em;
margin-top: 14px;
margin-bottom: 14px;
color: var(--ink);
}

.why-left p {
font-size: 16px;
color: var(--ink-soft);
line-height: 1.7;
}

.why-right {
padding: 56px 52px;
}

.why-list {
display: flex;
flex-direction: column;
gap: 18px;
}

.why-item {
display: flex;
align-items: flex-start;
gap: 14px;
}

.why-dot {
width: 32px;
height: 32px;
border-radius: var(--radius-sm);
background: var(--surface2);
color: var(--ink);
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
margin-top: 2px;
}

.why-item-text strong {
display: block;
font-size: 15px;
font-weight: 700;
color: var(--ink);
margin-bottom: 2px;
}

.why-item-text span {
font-size: 13.5px;
color: var(--muted);
}

/* ─── CTA ─── */

.cta {
padding: 104px 0;
}

.cta-inner {
text-align: center;
max-width: 600px;
margin: 0 auto;
padding: 72px 48px;
background: var(--ink);
border-radius: var(--radius-lg);
}

body.dark-mode .cta-inner {
background: var(--surface2);
border: 1px solid var(--line);
}

.cta-inner h2 {
font-size: 38px;
font-weight: 800;
letter-spacing: -0.03em;
margin-bottom: 16px;
line-height: 1.18;
color: #ffffff;
}

.cta-inner h2 em {
font-style: normal;
color: var(--accent);
}

.cta-inner p {
font-size: 16px;
color: rgba(255, 255, 255, 0.65);
line-height: 1.65;
margin-bottom: 34px;
}

.cta-buttons {
display: flex;
gap: 14px;
justify-content: center;
flex-wrap: wrap;
}

.cta .btn-secondary {
color: #fff;
border-color: rgba(255, 255, 255, 0.25);
}

.cta .btn-secondary:hover {
background: rgba(255, 255, 255, 0.08);
border-color: rgba(255,255,255,0.4);
}

/* ─── Footer ─── */

.footer {
border-top: 1px solid var(--line);
padding: 36px 0;
background: var(--bg);
}

.footer-content {
display: flex;
align-items: center;
justify-content: space-between;
flex-wrap: wrap;
gap: 12px;
}

.footer-logo {
font-size: 13px;
font-weight: 700;
letter-spacing: -0.01em;
color: var(--muted);
}

.footer-copy {
font-size: 12.5px;
color: var(--muted);
}

.footer-links {
display: flex;
gap: 22px;
}

.footer-links a {
font-size: 12.5px;
color: var(--muted);
font-weight: 500;
}

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

/* ─── Pricing ─── */

.pricing-hero {
padding: 100px 0 76px;
text-align: center;
}

.pricing-hero h1 {
font-size: 52px;
font-weight: 800;
letter-spacing: -0.035em;
margin-bottom: 18px;
margin-top: 16px;
line-height: 1.12;
color: var(--ink);
}

.pricing-hero h1 em {
font-style: normal;
color: var(--accent);
}

.pricing-subtitle {
font-size: 17px;
color: var(--ink-soft);
max-width: 520px;
margin: 0 auto;
line-height: 1.65;
}

.pricing-coming-soon {
padding: 48px 0 104px;
}

.coming-soon-card {
background: var(--surface);
border: 1px solid var(--line);
border-radius: var(--radius-lg);
padding: 64px 48px;
text-align: center;
box-shadow: var(--shadow-md);
position: relative;
overflow: hidden;
}

.coming-soon-card::before {
content: '';
position: absolute;
top: 0;
left: 0;
right: 0;
height: 3px;
background: var(--accent);
}

.coming-soon-card h2 {
font-size: 28px;
font-weight: 800;
letter-spacing: -0.02em;
margin-bottom: 16px;
color: var(--ink);
}

.coming-soon-card > p {
font-size: 16px;
color: var(--ink-soft);
line-height: 1.65;
max-width: 480px;
margin: 0 auto 40px;
}

.coming-soon-list {
display: flex;
flex-direction: column;
gap: 10px;
max-width: 380px;
margin: 0 auto 40px;
text-align: left;
}

.coming-soon-list li {
display: flex;
align-items: center;
gap: 10px;
font-size: 14.5px;
font-weight: 500;
color: var(--ink-soft);
background: var(--bg-alt);
border: 1px solid var(--line);
border-radius: var(--radius-md);
padding: 13px 16px;
}

.coming-soon-list li::before {
content: '✓';
color: var(--accent);
font-weight: 800;
font-size: 13px;
flex-shrink: 0;
}

.notify-form {
display: flex;
gap: 10px;
max-width: 400px;
margin: 0 auto;
flex-wrap: wrap;
justify-content: center;
}

.notify-input {
flex: 1;
min-width: 220px;
font-family: var(--font-main);
font-size: 15px;
padding: 13px 18px;
border-radius: var(--radius-sm);
border: 1.5px solid var(--line-strong);
background: var(--bg);
color: var(--ink);
outline: none;
transition: border-color 0.2s, box-shadow 0.2s;
}

.notify-input::placeholder {
color: var(--muted);
}

.notify-input:focus {
border-color: var(--accent);
box-shadow: 0 0 0 4px var(--accent-bg);
}

.pricing-app-status {
padding: 0 0 104px;
}

.app-status-card {
display: flex;
align-items: center;
gap: 20px;
background: var(--surface);
border: 1px solid var(--line);
border-radius: var(--radius-lg);
padding: 28px 36px;
}

.app-status-text h3 {
font-size: 18px;
font-weight: 700;
color: var(--ink);
margin-bottom: 6px;
}

.app-status-text p {
font-size: 14.5px;
color: var(--ink-soft);
line-height: 1.6;
}

.status-label {
margin-left: auto;
flex-shrink: 0;
font-size: 11.5px;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.06em;
padding: 7px 14px;
border-radius: 99px;
}

.status-live {
background: rgba(34, 197, 94, 0.12);
color: #16a34a;
border: 1px solid rgba(34, 197, 94, 0.25);
}

.status-soon {
background: var(--royal-bg);
color: var(--royal);
border: 1px solid rgba(112, 92, 255, 0.22);
}

/* ─── About ─── */

.about-hero {
padding: 100px 0 88px;
}

.about-hero h1 {
font-size: 52px;
font-weight: 800;
letter-spacing: -0.035em;
margin-bottom: 24px;
line-height: 1.12;
color: var(--ink);
}

.about-hero h1 em {
font-style: normal;
color: var(--accent);
}

.about-intro-text {
font-size: 16.5px;
color: var(--ink-soft);
line-height: 1.75;
margin-bottom: 20px;
max-width: 600px;
}

.about-story {
padding: 104px 0;
background: var(--bg-alt);
border-top: 1px solid var(--line);
border-bottom: 1px solid var(--line);
}

.about-story h2 {
font-size: 34px;
font-weight: 800;
letter-spacing: -0.03em;
margin-bottom: 20px;
color: var(--ink);
}

.story-lead {
font-size: 16.5px;
color: var(--ink-soft);
line-height: 1.75;
max-width: 620px;
margin-bottom: 16px;
}

.story-lead strong {
color: var(--ink);
font-weight: 700;
}

.story-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 20px;
margin-top: 52px;
}

.about-quote-section {
padding: 104px 0;
text-align: center;
border-bottom: 1px solid var(--line);
}

.quote-inner {
max-width: 620px;
margin: 0 auto;
}

.about-quote {
font-size: 28px;
font-style: normal;
font-weight: 700;
line-height: 1.42;
color: var(--ink);
letter-spacing: -0.02em;
margin-bottom: 20px;
}

.about-quote::before {
content: '\201C';
color: var(--accent);
margin-right: 4px;
}

.about-quote::after {
content: '\201D';
color: var(--accent);
margin-left: 4px;
}

.quote-attribution {
font-size: 13px;
color: var(--muted);
font-weight: 600;
}

/* ─── Animations ─── */

@keyframes fade-up {
from {
opacity: 0;
transform: translateY(14px);
}

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

.fade-up {
animation: fade-up 0.5s ease both;
}

.delay-1 { animation-delay: 0.08s; }
.delay-2 { animation-delay: 0.16s; }
.delay-3 { animation-delay: 0.24s; }
.delay-4 { animation-delay: 0.32s; }

/* ─── Reveal on scroll ─── */

.reveal {
opacity: 0;
transform: translateY(22px);
transition:
opacity 0.6s ease,
transform 0.6s ease;
}

.reveal.in-view {
opacity: 1;
transform: translateY(0);
}

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

.fade-up {
animation: none;
}
}

/* ─── Google Play buttons ─── */

.play-btn-nav {
display: flex;
align-items: center;
gap: 6px;
font-size: 13px;
font-weight: 600;
color: var(--ink-soft);
padding: 8px 12px;
border-radius: var(--radius-sm);
border: 1px solid var(--line-strong);
position: relative;
transition: all 0.2s;
}

.play-btn-nav:hover {
color: var(--ink);
border-color: var(--ink);
background: var(--surface2);
}

.play-btn {
display: inline-flex;
align-items: center;
gap: 10px;
padding: 11px 18px;
border-radius: var(--radius-sm);
border: 1.5px solid var(--line-strong);
color: var(--ink);
position: relative;
transition: all 0.2s;
}

.play-btn:hover {
border-color: var(--ink);
background: var(--surface2);
}

.play-btn-text {
display: flex;
flex-direction: column;
line-height: 1.25;
font-weight: 700;
font-size: 14.5px;
}

.play-btn-text small {
font-weight: 500;
font-size: 10.5px;
color: var(--muted);
text-transform: uppercase;
letter-spacing: 0.04em;
}

.play-btn-note {
position: absolute;
bottom: -30px;
left: 0;
white-space: nowrap;
font-size: 11.5px;
font-weight: 600;
color: var(--muted);
background: var(--surface);
border: 1px solid var(--line);
padding: 5px 10px;
border-radius: 99px;
opacity: 0;
pointer-events: none;
transition:
opacity 0.2s,
transform 0.2s;
transform: translateY(-4px);
z-index: 5;
}

.play-btn-note.show {
opacity: 1;
transform: translateY(0);
}

.cta .btn-secondary .play-btn-note {
background: var(--ink);
color: rgba(255,255,255,0.8);
border-color: rgba(255,255,255,0.2);
}

/* ─── Feed: category chips ─── */

.chip-row {
display: flex;
gap: 6px;
padding: 12px 14px 0;
flex-wrap: wrap;
}

.chip-filter {
font-family: var(--font-main);
font-size: 12px;
font-weight: 700;
color: var(--ink-soft);
background: var(--surface2);
border: 1px solid transparent;
border-radius: 99px;
padding: 6px 12px;
cursor: pointer;
transition: all 0.15s;
}

.chip-filter:hover {
color: var(--ink);
}

.chip-filter.active {
background: var(--ink);
color: var(--bg);
}

body.dark-mode .chip-filter.active {
background: var(--accent);
color: #ffffff;
}

.feed-live-dot {
width: 6px;
height: 6px;
border-radius: 50%;
background: #22c55e;
margin-left: auto;
box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.18);
}

.feed-header {
justify-content: space-between;
}

/* ─── Feed card actions ─── */

.card-actions {
display: flex;
align-items: center;
gap: 4px;
margin-top: 12px;
padding-top: 12px;
border-top: 1px solid var(--line);
}

.card-action {
display: flex;
align-items: center;
justify-content: center;
width: 28px;
height: 28px;
border-radius: var(--radius-sm);
background: transparent;
border: none;
color: var(--muted);
cursor: pointer;
transition:
color 0.15s,
background 0.15s;
}

.card-action:hover {
background: var(--surface2);
color: var(--ink);
}

.card-action.active[data-action="like"] {
color: var(--accent);
}

.card-action.active[data-action="save"] {
color: var(--royal);
}

.card-action.pulse {
animation: card-pulse 0.26s ease;
}

@keyframes card-pulse {
50% {
transform: scale(1.22);
}
}

.card-action-spacer {
flex: 1;
}

.card-action-link {
font-size: 11.5px;
font-weight: 700;
color: var(--accent);
}

/* ─── Journey ─── */

.journey {
padding: 104px 0;
background: var(--bg-alt);
border-top: 1px solid var(--line);
border-bottom: 1px solid var(--line);
}

.journey-row {
display: flex;
align-items: stretch;
flex-wrap: wrap;
gap: 8px;
margin-bottom: 48px;
}

.journey-step {
flex: 1;
min-width: 128px;
background: var(--surface);
border: 1px solid var(--line);
border-radius: var(--radius-md);
padding: 18px 16px;
display: flex;
flex-direction: column;
gap: 4px;
}

.journey-label {
font-size: 15px;
font-weight: 800;
color: var(--ink);
letter-spacing: -0.01em;
}

.journey-detail {
font-size: 12.5px;
color: var(--muted);
}

.journey-arrow {
display: flex;
align-items: center;
justify-content: center;
color: var(--muted);
font-size: 16px;
padding: 0 2px;
}

/* ─── Before / After demo panel ─── */

.demo-panel {
background: var(--surface);
border: 1px solid var(--line);
border-radius: var(--radius-lg);
box-shadow: var(--shadow-md);
overflow: hidden;
}

.demo-panel-head {
display: flex;
align-items: center;
justify-content: space-between;
gap: 20px;
padding: 26px 30px;
border-bottom: 1px solid var(--line);
flex-wrap: wrap;
}

.demo-panel-head h3 {
font-size: 17px;
font-weight: 700;
color: var(--ink);
margin-bottom: 3px;
}

.demo-panel-head p {
font-size: 13.5px;
color: var(--muted);
}

.demo-toggle {
display: flex;
align-items: center;
gap: 10px;
background: none;
border: none;
cursor: pointer;
font-family: var(--font-main);
}

.demo-toggle-track {
width: 40px;
height: 22px;
border-radius: 99px;
background: var(--surface2);
border: 1px solid var(--line-strong);
position: relative;
transition: background 0.2s;
flex-shrink: 0;
}

.demo-toggle-thumb {
position: absolute;
top: 2px;
left: 2px;
width: 16px;
height: 16px;
border-radius: 50%;
background: var(--muted);
transition:
transform 0.2s,
background 0.2s;
}

.demo-panel.show-simplified .demo-toggle-track {
background: var(--accent-bg);
border-color: var(--accent-line);
}

.demo-panel.show-simplified .demo-toggle-thumb {
transform: translateX(18px);
background: var(--accent);
}

.demo-toggle-label {
font-size: 13.5px;
font-weight: 700;
color: var(--ink);
}

.demo-panel-body {
position: relative;
padding: 30px;
min-height: 140px;
}

.demo-text {
display: flex;
align-items: center;
}

.demo-text p {
font-size: 16px;
line-height: 1.7;
color: var(--ink-soft);
}

.demo-tag {
display: block;
font-size: 11px;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.06em;
color: var(--muted);
margin-bottom: 10px;
}

.demo-original {
display: block;
}

.demo-simplified {
display: none;
}

.demo-simplified .demo-tag {
color: var(--accent);
}

.demo-simplified p {
color: var(--ink);
font-weight: 500;
}

.demo-panel.show-simplified .demo-original {
display: none;
}

.demo-panel.show-simplified .demo-simplified {
display: block;
}

/* ─── Interest chips ─── */

.interest-chips {
display: flex;
flex-wrap: wrap;
gap: 8px;
margin-top: 44px;
padding-top: 40px;
border-top: 1px solid var(--line);
}

.interest-chip {
font-size: 13px;
font-weight: 600;
color: var(--ink-soft);
background: var(--surface);
border: 1px solid var(--line);
border-radius: 99px;
padding: 8px 15px;
}

.feature-grid-6 {
grid-template-columns: repeat(3, 1fr);
}

/* ─── Roadmap ─── */

.roadmap {
padding: 104px 0;
}

.badge-soon {
color: var(--royal);
background: var(--royal-bg);
}

.badge-soon::before {
background: var(--royal);
}

.roadmap-card {
border-style: dashed;
border-color: var(--line-strong);
position: relative;
}

.feature-icon-soon {
background: var(--surface2);
color: var(--ink-soft);
}

.soon-tag {
position: absolute;
top: 22px;
right: 22px;
font-size: 10.5px;
font-weight: 700;
text-transform: uppercase;
letter-spacing: 0.05em;
color: var(--royal);
background: var(--royal-bg);
padding: 4px 10px;
border-radius: 99px;
}

/* ─── Responsive ─── */

@media (max-width: 900px) {
.ps-row,
.ps-row.reverse {
grid-template-columns: 1fr;
gap: 32px;
}

.ps-row.reverse .ps-visual,
.ps-row.reverse .ps-copy {
order: initial;
}

.ps-visual {
max-width: 320px;
margin: 0 auto;
}
}

@media (max-width: 720px) {
.container {
padding: 0 22px;
}

.hero {
padding: 64px 0 56px;
}

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

.hero-text h1 {
font-size: 38px;
}

.features h2,
.why-left h2,
.about-story h2 {
font-size: 27px;
}

.cta-inner {
padding: 48px 26px;
}

.cta-inner h2 {
font-size: 28px;
}

.feature-grid,
.feature-grid-6,
.roadmap-grid,
.story-grid,
.steps-row {
grid-template-columns: 1fr;
}

.play-btn-nav {
display: none;
}

.play-btn-text small {
display: block;
}

.hero-buttons {
flex-direction: column;
align-items: stretch;
gap: 12px;
}

.hero-buttons .btn,
.hero-buttons .play-btn {
justify-content: center;
}

.journey-row {
flex-direction: column;
}

.journey-arrow {
transform: rotate(90deg);
padding: 2px 0;
}

.journey-step {
min-width: 0;
}

.demo-panel-head {
padding: 20px 22px;
}

.demo-panel-body {
padding: 22px;
}

.demo-text p {
font-size: 15px;
}

.interest-chips {
margin-top: 32px;
padding-top: 28px;
}

.soon-tag {
position: static;
display: inline-block;
margin-bottom: 14px;
}

.why-top {
grid-template-columns: 1fr;
}

.why-left {
border-right: none;
border-bottom: 1px solid var(--line);
}

.why-left,
.why-right {
padding: 36px 28px;
}

.about-hero {
padding: 64px 0 52px;
}

.about-hero h1 {
font-size: 34px;
}

.pricing-hero {
padding: 64px 0 48px;
}

.pricing-hero h1 {
font-size: 34px;
}

.app-status-card {
flex-direction: column;
text-align: center;
}

.status-label {
margin-left: 0;
}

.coming-soon-card {
padding: 40px 24px;
}

.nav-links {
display: none;
}

.nav-cta {
display: none;
}

.footer-content {
flex-direction: column;
align-items: flex-start;
}

.logo-row {
justify-content: flex-start;
gap: 24px;
}
}