:root {
--bg-primary: #050510;
--bg-secondary: #0c0c1d;
--bg-tertiary: #141428;
--bg-card: rgba(15, 15, 35, 0.7);
--text-primary: #ffffff;
--text-secondary: #8888aa;
--accent-blue: #00b4ff;
--accent-purple: #a855f7;
--accent-pink: #ff2d78;
--accent-green: #00ff88;
--accent-orange: #ff8a00;
--accent-cyan: #00f0ff;
--border-color: rgba(255, 255, 255, 0.06);
--radius-sm: 8px;
--radius-md: 14px;
--radius-lg: 20px;
--radius-xl: 28px;
--glow-blue: 0 0 30px rgba(0, 180, 255, 0.3);
--glow-purple: 0 0 30px rgba(168, 85, 247, 0.3);
--glow-pink: 0 0 30px rgba(255, 45, 120, 0.3);
--glass-bg: rgba(255, 255, 255, 0.03);
--glass-border: rgba(255, 255, 255, 0.08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Inter', sans-serif;
background: var(--bg-primary);
color: var(--text-primary);
min-height: 100vh;
overflow-x: hidden;
}

.navbar {
display: flex;
align-items: center;
justify-content: space-between;
padding: 20px 48px;
position: relative;
z-index: 10;
animation: navSlide 0.6s ease;
}

@keyframes navSlide {
from { opacity: 0; transform: translateY(-20px); }
to { opacity: 1; transform: translateY(0); }
}

.nav-logo {
font-size: 1.4rem;
font-weight: 800;
background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink));
background-size: 200% 200%;
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
text-decoration: none;
position: relative;
animation: gradientShift 3s ease infinite;
letter-spacing: -0.02em;
}

.nav-logo::after {
content: "";
position: absolute;
bottom: -4px;
left: 0;
right: 0;
height: 2px;
background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink), transparent);
border-radius: 1px;
transform: scaleX(0);
transform-origin: left;
transition: transform 0.3s ease;
}

.nav-logo:hover::after { transform: scaleX(1); }

.nav-links { display: flex; gap: 12px; }

.nav-btn {
padding: 10px 24px;
border-radius: var(--radius-md);
font-size: 0.9rem;
font-weight: 600;
text-decoration: none;
transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
border: 1px solid transparent;
cursor: pointer;
position: relative;
overflow: hidden;
backdrop-filter: blur(10px);
}

.nav-btn::before {
content: "";
position: absolute;
inset: 0;
background: linear-gradient(135deg, transparent, rgba(255,255,255,0.06), transparent);
transform: translateX(-100%);
transition: transform 0.5s ease;
}

.nav-btn:hover::before { transform: translateX(100%); }

.nav-btn.ghost {
color: var(--text-secondary);
border-color: var(--glass-border);
background: var(--glass-bg);
}

.nav-btn.ghost:hover {
color: var(--text-primary);
border-color: rgba(0, 180, 255, 0.3);
background: rgba(0, 180, 255, 0.05);
transform: translateY(-1px);
box-shadow: var(--glow-blue);
}

.nav-btn.primary {
background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
color: white;
border: 1px solid rgba(255, 45, 120, 0.3);
}

.nav-btn.primary:hover {
transform: translateY(-2px);
box-shadow: var(--glow-pink), var(--glow-purple);
filter: brightness(1.1);
}

.hero {
position: relative;
padding: 100px 40px 80px;
text-align: center;
overflow: hidden;
}

.hero-glow {
position: absolute;
top: -300px;
left: 50%;
transform: translateX(-50%);
width: 1000px;
height: 700px;
background: radial-gradient(ellipse, rgba(0, 240, 255, 0.08) 0%, rgba(168, 85, 247, 0.06) 30%, rgba(255, 45, 120, 0.04) 50%, transparent 70%);
pointer-events: none;
animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
0%, 100% { opacity: 0.8; transform: translateX(-50%) scale(1); }
50% { opacity: 1; transform: translateX(-50%) scale(1.08); }
}

.hero-content { max-width: 750px; margin: 0 auto; position: relative; z-index: 1; }

.hero-title {
font-size: 4.5rem;
font-weight: 800;
line-height: 1.05;
margin-bottom: 24px;
letter-spacing: -0.03em;
animation: heroTitleIn 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes heroTitleIn {
from { opacity: 0; transform: translateY(50px); filter: blur(15px); }
to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.gradient-text {
background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink), var(--accent-orange));
background-size: 300% 300%;
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
animation: gradientShift 4s ease infinite;
}

@keyframes gradientShift {
0%, 100% { background-position: 0% 50%; }
50% { background-position: 100% 50%; }
}

.hero-sub {
font-size: 1.2rem;
color: var(--text-secondary);
line-height: 1.7;
margin-bottom: 40px;
max-width: 560px;
margin-left: auto;
margin-right: auto;
animation: heroSubIn 0.6s ease 0.3s both;
}

@keyframes heroSubIn {
from { opacity: 0; transform: translateY(20px); }
to { opacity: 1; transform: translateY(0); }
}

.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 56px; animation: heroActionsIn 0.6s ease 0.5s both; }

@keyframes heroActionsIn {
from { opacity: 0; transform: translateY(20px); }
to { opacity: 1; transform: translateY(0); }
}

.btn-hero {
padding: 16px 36px;
border-radius: var(--radius-lg);
font-size: 1.05rem;
font-weight: 600;
text-decoration: none;
transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
border: 1px solid transparent;
cursor: pointer;
position: relative;
overflow: hidden;
letter-spacing: -0.01em;
}

.btn-hero::before {
content: "";
position: absolute;
inset: 0;
background: linear-gradient(135deg, transparent, rgba(255,255,255,0.1), transparent);
transform: translateX(-100%);
transition: transform 0.6s ease;
}

.btn-hero:hover::before { transform: translateX(100%); }

.btn-hero.primary {
background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple), var(--accent-blue));
background-size: 200% 200%;
animation: gradientShift 3s ease infinite;
color: white;
border: 1px solid rgba(255, 45, 120, 0.4);
}

.btn-hero.primary:hover {
transform: translateY(-3px);
box-shadow: 0 0 40px rgba(255, 45, 120, 0.4), 0 0 80px rgba(168, 85, 247, 0.2);
filter: brightness(1.1);
}

.btn-hero.primary:active { transform: translateY(-1px); }

.btn-hero.ghost {
color: var(--text-secondary);
border-color: var(--glass-border);
background: var(--glass-bg);
backdrop-filter: blur(10px);
}

.btn-hero.ghost:hover {
color: white;
border-color: rgba(0, 240, 255, 0.3);
transform: translateY(-2px);
box-shadow: var(--glow-blue);
background: rgba(0, 240, 255, 0.05);
}

.hero-stats {
display: flex;
gap: 48px;
justify-content: center;
animation: statsIn 0.6s ease 0.7s both;
}

@keyframes statsIn {
from { opacity: 0; transform: translateY(20px); }
to { opacity: 1; transform: translateY(0); }
}

.stat { display: flex; flex-direction: column; align-items: center; gap: 4px; }

.stat-num {
font-size: 1.6rem;
font-weight: 800;
background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}

.stat-label { font-size: 0.8rem; color: var(--text-secondary); letter-spacing: 0.05em; text-transform: uppercase; }

.features {
padding: 100px 40px;
max-width: 1200px;
margin: 0 auto;
}

.features-header {
text-align: center;
margin-bottom: 64px;
animation: fadeInUp 0.6s ease both;
}

.features-header h2 {
font-size: 2.8rem;
font-weight: 800;
margin-bottom: 12px;
background: linear-gradient(135deg, var(--text-primary), var(--accent-cyan));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
letter-spacing: -0.02em;
}

.features-header p {
font-size: 1.1rem;
color: var(--text-secondary);
}

@keyframes fadeInUp {
from { opacity: 0; transform: translateY(30px); }
to { opacity: 1; transform: translateY(0); }
}

.features-grid {
display: grid;
grid-template-columns: repeat(3, 1fr);
gap: 24px;
}

.feature-card {
background: var(--glass-bg);
backdrop-filter: blur(20px);
border: 1px solid var(--glass-border);
border-radius: var(--radius-lg);
padding: 32px;
transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
position: relative;
overflow: hidden;
opacity: 0;
transform: translateY(30px);
}

.feature-card::before {
content: "";
position: absolute;
inset: 0;
background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 0%), rgba(168, 85, 247, 0.08), transparent 60%);
opacity: 0;
transition: opacity 0.4s ease;
}

.feature-card:hover::before { opacity: 1; }

.feature-card::after {
content: "";
position: absolute;
top: 0;
left: -100%;
width: 200%;
height: 100%;
background: linear-gradient(90deg, transparent, rgba(255,255,255,0.02), transparent);
transition: left 0.6s ease;
}

.feature-card:hover::after { left: 100%; }

.feature-card.visible {
opacity: 1;
transform: translateY(0);
}

.feature-card:hover {
border-color: rgba(168, 85, 247, 0.3);
transform: translateY(-8px);
box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5), var(--glow-purple);
}

.feature-icon {
width: 52px;
height: 52px;
border-radius: var(--radius-md);
display: flex;
align-items: center;
justify-content: center;
margin-bottom: 20px;
transition: all 0.3s ease;
position: relative;
}

.feature-card:hover .feature-icon { transform: scale(1.15) rotate(5deg); }

.feature-icon.blue { background: rgba(0, 180, 255, 0.12); color: var(--accent-blue); }
.feature-icon.purple { background: rgba(168, 85, 247, 0.12); color: var(--accent-purple); }
.feature-icon.green { background: rgba(0, 255, 136, 0.12); color: var(--accent-green); }
.feature-icon.orange { background: rgba(255, 138, 0, 0.12); color: var(--accent-orange); }
.feature-icon.red { background: rgba(255, 45, 120, 0.12); color: var(--accent-pink); }
.feature-icon.cyan { background: rgba(0, 240, 255, 0.12); color: var(--accent-cyan); }

.feature-card h3 {
font-size: 1.15rem;
font-weight: 700;
margin-bottom: 10px;
letter-spacing: -0.01em;
}

.feature-card p {
font-size: 0.9rem;
color: var(--text-secondary);
line-height: 1.7;
}

.cta {
padding: 100px 40px;
text-align: center;
}

.cta-content {
max-width: 540px;
margin: 0 auto;
background: var(--glass-bg);
backdrop-filter: blur(20px);
border: 1px solid rgba(168, 85, 247, 0.2);
border-radius: var(--radius-xl);
padding: 56px;
position: relative;
overflow: hidden;
animation: ctaPulse 3s ease-in-out infinite;
}

.cta-content::before {
content: "";
position: absolute;
inset: -2px;
border-radius: var(--radius-xl);
padding: 2px;
background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink), var(--accent-orange), var(--accent-cyan));
background-size: 300% 300%;
animation: gradientShift 4s ease infinite;
-webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
-webkit-mask-composite: xor;
mask-composite: exclude;
pointer-events: none;
}

.cta-content::after {
content: "";
position: absolute;
top: -50%;
left: -50%;
width: 200%;
height: 200%;
background: radial-gradient(ellipse, rgba(168, 85, 247, 0.06), transparent 60%);
animation: ctaRotate 12s linear infinite;
}

@keyframes ctaRotate {
from { transform: rotate(0deg); }
to { transform: rotate(360deg); }
}

@keyframes ctaPulse {
0%, 100% { box-shadow: 0 0 0 0 rgba(168, 85, 247, 0); }
50% { box-shadow: 0 0 40px rgba(168, 85, 247, 0.15), 0 0 80px rgba(255, 45, 120, 0.05); }
}

.cta-content h2 {
font-size: 2.2rem;
font-weight: 800;
margin-bottom: 12px;
position: relative;
letter-spacing: -0.02em;
background: linear-gradient(135deg, var(--text-primary), var(--accent-cyan));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
}

.cta-content p {
color: var(--text-secondary);
margin-bottom: 32px;
position: relative;
font-size: 1.05rem;
}

.footer {
text-align: center;
padding: 48px;
color: var(--text-secondary);
font-size: 0.85rem;
border-top: 1px solid var(--border-color);
background: linear-gradient(to top, rgba(5, 5, 16, 0.8), transparent);
}

.auth-page {
min-height: 100vh;
display: flex;
align-items: center;
justify-content: center;
padding: 40px 20px;
position: relative;
overflow: hidden;
}

.auth-page::before {
content: "";
position: absolute;
top: -150px;
left: 50%;
transform: translateX(-50%);
width: 700px;
height: 500px;
background: radial-gradient(ellipse, rgba(168, 85, 247, 0.12) 0%, rgba(255, 45, 120, 0.06) 30%, transparent 70%);
pointer-events: none;
animation: authGlow 4s ease-in-out infinite;
}

.auth-page::after {
content: "";
position: absolute;
bottom: -200px;
left: 30%;
width: 500px;
height: 400px;
background: radial-gradient(ellipse, rgba(0, 240, 255, 0.06) 0%, transparent 70%);
pointer-events: none;
animation: authGlow2 5s ease-in-out infinite;
}

@keyframes authGlow {
0%, 100% { opacity: 0.8; transform: translateX(-50%) scale(1); }
50% { opacity: 1; transform: translateX(-50%) scale(1.15); }
}

@keyframes authGlow2 {
0%, 100% { opacity: 0.6; transform: scale(1); }
50% { opacity: 1; transform: scale(1.1); }
}

.auth-card {
width: 100%;
max-width: 440px;
background: var(--glass-bg);
backdrop-filter: blur(24px);
border: 1px solid var(--glass-border);
border-radius: var(--radius-xl);
padding: 44px;
position: relative;
z-index: 1;
animation: authCardIn 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.auth-card::before {
content: "";
position: absolute;
inset: -1px;
border-radius: var(--radius-xl);
padding: 1px;
background: linear-gradient(135deg, rgba(168, 85, 247, 0.3), transparent 40%, transparent 60%, rgba(0, 240, 255, 0.3));
-webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
-webkit-mask-composite: xor;
mask-composite: exclude;
pointer-events: none;
}

@keyframes authCardIn {
from { opacity: 0; transform: scale(0.95) translateY(20px); }
to { opacity: 1; transform: scale(1) translateY(0); }
}

.auth-header {
text-align: center;
margin-bottom: 36px;
animation: authHeaderIn 0.5s ease 0.2s both;
}

@keyframes authHeaderIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}

.auth-logo {
display: inline-block;
font-size: 1.3rem;
font-weight: 800;
background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple), var(--accent-pink));
background-size: 200% 200%;
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
text-decoration: none;
margin-bottom: 24px;
animation: gradientShift 3s ease infinite;
letter-spacing: -0.02em;
}

.auth-header h1 {
font-size: 1.7rem;
font-weight: 700;
margin-bottom: 8px;
letter-spacing: -0.01em;
}

.auth-header p {
color: var(--text-secondary);
font-size: 0.95rem;
}

.auth-form { display: flex; flex-direction: column; gap: 20px; animation: authFormIn 0.5s ease 0.3s both; }

@keyframes authFormIn {
from { opacity: 0; transform: translateY(10px); }
to { opacity: 1; transform: translateY(0); }
}

.form-group { display: flex; flex-direction: column; gap: 8px; }

.form-group label {
font-size: 0.85rem;
font-weight: 600;
color: var(--text-secondary);
letter-spacing: 0.03em;
text-transform: uppercase;
}

.form-group input {
padding: 14px 18px;
background: rgba(255, 255, 255, 0.04);
border: 1px solid var(--glass-border);
border-radius: var(--radius-md);
color: var(--text-primary);
font-size: 0.95rem;
outline: none;
transition: all 0.3s ease;
}

.form-group input:focus {
border-color: var(--accent-purple);
box-shadow: 0 0 0 3px rgba(168, 85, 247, 0.12), 0 0 20px rgba(168, 85, 247, 0.08);
background: rgba(168, 85, 247, 0.04);
}

.form-group input::placeholder { color: rgba(136, 136, 170, 0.4); }

.form-error {
display: none;
color: var(--accent-pink);
font-size: 0.85rem;
padding: 10px 14px;
background: rgba(255, 45, 120, 0.08);
border-radius: var(--radius-sm);
border: 1px solid rgba(255, 45, 120, 0.2);
animation: errorShake 0.4s ease;
}

@keyframes errorShake {
0%, 100% { transform: translateX(0); }
25% { transform: translateX(-6px); }
75% { transform: translateX(6px); }
}

.auth-submit {
padding: 16px;
background: linear-gradient(135deg, var(--accent-pink), var(--accent-purple));
background-size: 200% 200%;
animation: gradientShift 3s ease infinite;
border: 1px solid rgba(255, 45, 120, 0.3);
border-radius: var(--radius-md);
color: white;
font-size: 1rem;
font-weight: 600;
cursor: pointer;
transition: all 0.3s ease;
margin-top: 4px;
position: relative;
overflow: hidden;
letter-spacing: -0.01em;
}

.auth-submit::before {
content: "";
position: absolute;
inset: 0;
background: linear-gradient(135deg, transparent, rgba(255,255,255,0.15), transparent);
transform: translateX(-100%);
transition: transform 0.5s ease;
}

.auth-submit:hover::before { transform: translateX(100%); }

.auth-submit:hover {
transform: translateY(-2px);
box-shadow: var(--glow-pink), var(--glow-purple);
filter: brightness(1.1);
}

.auth-submit:active { transform: translateY(0) scale(0.98); }

.auth-footer {
text-align: center;
margin-top: 28px;
padding-top: 24px;
border-top: 1px solid var(--border-color);
animation: authFooterIn 0.5s ease 0.4s both;
}

@keyframes authFooterIn {
from { opacity: 0; }
to { opacity: 1; }
}

.auth-footer p { font-size: 0.9rem; color: var(--text-secondary); }

.auth-footer a {
background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
-webkit-background-clip: text;
-webkit-text-fill-color: transparent;
text-decoration: none;
font-weight: 600;
transition: all 0.2s;
}

.auth-footer a:hover { text-decoration: underline; filter: brightness(1.2); }

.auth-divider {
display: flex;
align-items: center;
gap: 12px;
margin: 16px 0;
color: var(--text-secondary);
font-size: 0.8rem;
}

.auth-divider::before, .auth-divider::after {
content: "";
flex: 1;
height: 1px;
background: linear-gradient(90deg, transparent, var(--border-color), transparent);
}

.auth-demo-btn {
display: block;
width: 100%;
padding: 14px;
background: rgba(0, 240, 255, 0.04);
border: 1px solid rgba(0, 240, 255, 0.15);
border-radius: var(--radius-md);
color: var(--accent-cyan);
font-size: 0.9rem;
font-weight: 600;
text-align: center;
text-decoration: none;
cursor: pointer;
transition: all 0.3s ease;
position: relative;
overflow: hidden;
letter-spacing: 0.02em;
}

.auth-demo-btn::before {
content: "";
position: absolute;
inset: 0;
background: linear-gradient(135deg, rgba(0, 240, 255, 0.08), rgba(168, 85, 247, 0.04));
opacity: 0;
transition: opacity 0.3s ease;
}

.auth-demo-btn:hover::before { opacity: 1; }

.auth-demo-btn:hover {
border-color: rgba(0, 240, 255, 0.4);
transform: translateY(-2px);
box-shadow: var(--glow-blue);
color: white;
}

.auth-demo-btn:active { transform: translateY(0) scale(0.98); }

@media (max-width: 768px) {
.navbar { padding: 16px 20px; }
.hero { padding: 60px 20px 40px; }
.hero-title { font-size: 2.5rem; }
.hero-sub { font-size: 1rem; }
.hero-actions { flex-direction: column; align-items: center; }
.hero-stats { gap: 24px; flex-wrap: wrap; }
.features { padding: 60px 20px; }
.features-grid { grid-template-columns: 1fr; }
.features-header h2 { font-size: 1.8rem; }
.auth-card { padding: 28px; }
.btn-hero { padding: 14px 28px; font-size: 0.95rem; }
}

@media (max-width: 480px) {
.hero-title { font-size: 2rem; }
.hero-stats { gap: 16px; }
.auth-card { padding: 24px; }
}