:root {
    --primary-black: #000000;
    --rich-black: #000000;
    --charcoal: #000000;
    --dark-gray: #111111;
    --medium-gray: #1a1a1a;
    --light-gray: #2a2a2a;
    --silver: #e5e5e5;
    --bright-silver: #ffffff;
    --platinum: #f5f5f5;
    --accent-silver: #cccccc;
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.4);
    --shadow-silver: 0 0 60px rgba(255, 255, 255, 0.6);
    --shadow-dark: 0 8px 32px rgba(0, 0, 0, 1);
    --glow-silver: 0 0 30px rgba(255, 255, 255, 0.8);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: #000000;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    color: var(--bright-silver);
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.08) 0%, transparent 60%),
        radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.06) 0%, transparent 60%),
        radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.04) 0%, transparent 50%);
    z-index: -1;
    animation: backgroundPulse 12s ease-in-out infinite;
}

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

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

/* Floating Elements */
.floating-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.floating-element {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    animation: floatRotate 25s linear infinite;
}

.floating-element:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.3), rgba(255, 255, 255, 0.2));
    box-shadow: var(--glow-silver);
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.floating-element:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 20%;
    right: 20%;
    animation-delay: 8s;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.25), rgba(255, 255, 255, 0.15));
    border: 2px solid rgba(255, 255, 255, 0.4);
}

.floating-element:nth-child(3) {
    width: 100px;
    height: 100px;
    bottom: 30%;
    left: 15%;
    animation-delay: 16s;
    background: linear-gradient(45deg, rgba(255, 255, 255, 0.35), rgba(255, 255, 255, 0.25));
    border: 2px solid rgba(255, 255, 255, 0.6);
}

@keyframes floatRotate {
    0% { transform: translateY(0px) rotate(0deg); opacity: 0.3; }
    25% { transform: translateY(-40px) rotate(90deg); opacity: 0.8; }
    50% { transform: translateY(-80px) rotate(180deg); opacity: 0.3; }
    75% { transform: translateY(-40px) rotate(270deg); opacity: 0.8; }
    100% { transform: translateY(0px) rotate(360deg); opacity: 0.3; }
}

/* Header */
header {
    padding: 40px 0;
    text-align: center;
    animation: slideInDown 1.2s ease-out;
}

.logo h1 {
    font-size: 3rem;
    font-weight: 900;
    color: var(--bright-silver);
    position: relative;
    animation: logoGlow 4s ease-in-out infinite;
    letter-spacing: -0.02em;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
}

.logo h1::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--silver), transparent);
    animation: underlineGlow 3s ease-in-out infinite;
}

@keyframes logoGlow {
    0%, 100% { 
        filter: drop-shadow(0 0 30px rgba(240, 246, 252, 0.5));
        transform: scale(1);
    }
    50% { 
        filter: drop-shadow(0 0 50px rgba(201, 209, 217, 0.8));
        transform: scale(1.02);
    }
}

@keyframes underlineGlow {
    0%, 100% { opacity: 0.5; transform: translateX(-50%) scaleX(0.8); }
    50% { opacity: 1; transform: translateX(-50%) scaleX(1.2); }
}

@keyframes slideInDown {
    from { transform: translateY(-100px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Main Content */
main {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 100px;
    animation: fadeInUp 1.5s ease-out 0.4s both;
}

@keyframes fadeInUp {
    from { transform: translateY(80px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 100px;
    align-items: center;
    margin: 80px 0;
}

.content {
    color: var(--bright-silver);
    animation: slideInLeft 1.2s ease-out 0.8s both;
}

@keyframes slideInLeft {
    from { transform: translateX(-80px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.main-title {
    font-size: 4.5rem;
    font-weight: 900;
    margin-bottom: 32px;
    line-height: 1.1;
    color: var(--bright-silver);
    animation: titlePulse 5s ease-in-out infinite;
    letter-spacing: -0.03em;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.9);
}

@keyframes titlePulse {
    0%, 100% { 
        transform: scale(1); 
        filter: drop-shadow(0 0 20px rgba(240, 246, 252, 0.3));
    }
    50% { 
        transform: scale(1.01); 
        filter: drop-shadow(0 0 40px rgba(201, 209, 217, 0.5));
    }
}

.subtitle {
    font-size: 1.4rem;
    margin-bottom: 56px;
    color: var(--silver);
    font-weight: 400;
    line-height: 1.7;
    animation: textReveal 2.5s ease-out 1.2s both;
}

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

/* Enhanced Countdown */
.countdown {
    display: flex;
    gap: 32px;
    margin-bottom: 56px;
    justify-content: flex-start;
    animation: countdownSlide 1.8s ease-out 1.5s both;
}

@keyframes countdownSlide {
    from { transform: translateX(-60px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.time-unit {
    background: var(--glass-bg);
    backdrop-filter: blur(25px);
    border: 2px solid var(--glass-border);
    border-radius: 20px;
    padding: 32px 24px;
    text-align: center;
    min-width: 100px;
    position: relative;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: countdownFloat 4s ease-in-out infinite;
    box-shadow: var(--shadow-dark);
}

.time-unit:nth-child(1) { animation-delay: 0s; }
.time-unit:nth-child(2) { animation-delay: 0.8s; }
.time-unit:nth-child(3) { animation-delay: 1.6s; }
.time-unit:nth-child(4) { animation-delay: 2.4s; }

.time-unit::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--bright-silver), var(--silver), var(--platinum));
    border-radius: 20px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.4s ease;
}

.time-unit:hover {
    transform: translateY(-12px) scale(1.05);
    box-shadow: var(--shadow-silver);
}

.time-unit:hover::before {
    opacity: 1;
}

@keyframes countdownFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-12px); }
}

.time-unit .number {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--bright-silver);
    transition: all 0.2s ease;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.8);
}

.time-unit .label {
    font-size: 1rem;
    color: var(--silver);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
    margin-top: 12px;
}

/* Enhanced Email Signup */
.email-signup {
    margin-bottom: 32px;
    animation: formSlide 2s ease-out 1.8s both;
}

@keyframes formSlide {
    from { transform: translateY(40px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.input-group {
    display: flex;
    gap: 0;
    max-width: 500px;
    position: relative;
    overflow: hidden;
    border-radius: 16px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 2px solid var(--glass-border);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: var(--shadow-dark);
}

.input-group:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-silver);
    border-color: var(--silver);
}

.input-group.focused {
    transform: translateY(-4px) scale(1.01);
    border-color: var(--bright-silver);
    box-shadow: var(--glow-silver);
}

.input-group input {
    flex: 1;
    padding: 24px 32px;
    background: rgba(255, 255, 255, 0.1);
    border: none;
    font-size: 1.2rem;
    color: var(--bright-silver);
    outline: none;
    font-weight: 500;
}

.input-group input::placeholder {
    color: var(--silver);
    transition: color 0.3s ease;
}

.input-group input:focus::placeholder {
    color: var(--light-gray);
}

.input-group button {
    padding: 24px 40px;
    background: linear-gradient(135deg, var(--dark-gray), var(--medium-gray));
    color: var(--bright-silver);
    border: none;
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border-left: 1px solid var(--glass-border);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.input-group button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bright-silver), var(--platinum));
    transition: left 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 0;
}

.input-group button:hover::before {
    left: 0;
}

.input-group button:hover {
    transform: scale(1.05);
    box-shadow: var(--glow-silver);
    color: var(--primary-black);
}

.input-group button span {
    position: relative;
    z-index: 1;
    transition: color 0.4s ease;
}

.input-group button:hover span {
    color: var(--primary-black);
}

.input-group button.valid {
    background: linear-gradient(135deg, var(--medium-gray), var(--light-gray));
}

.input-group button.invalid {
    background: linear-gradient(135deg, #dc2626, #991b1b);
}

.input-group button.loading {
    cursor: not-allowed;
    background: linear-gradient(135deg, var(--dark-gray), var(--medium-gray));
}

.input-group button.error {
    background: linear-gradient(135deg, #dc2626, #991b1b);
    animation: shake 0.6s ease-in-out;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

.privacy-note {
    font-size: 1rem;
    color: var(--accent-silver);
    margin-top: 16px;
    animation: fadeIn 2.5s ease-out 2.2s both;
}

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

.success-message {
    background: linear-gradient(135deg, rgba(72, 79, 88, 0.3), rgba(48, 54, 61, 0.2));
    border: 2px solid var(--silver);
    color: var(--bright-silver);
    padding: 32px;
    border-radius: 16px;
    margin-top: 32px;
    backdrop-filter: blur(20px);
    animation: successPop 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: var(--glow-silver);
}

@keyframes successPop {
    0% { transform: scale(0) rotate(180deg); opacity: 0; }
    100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

.success-content {
    text-align: center;
}

.success-icon {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    animation: bounce 1s ease-in-out;
}

@keyframes bounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.success-content h4 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--bright-silver);
}

.success-stats {
    margin-top: 1.5rem;
    font-size: 1rem;
    color: var(--silver);
}

/* Enhanced Visual Section */
.visual {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: slideInRight 1.2s ease-out 1.1s both;
}

@keyframes slideInRight {
    from { transform: translateX(80px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.placeholder-graphic {
    position: relative;
    width: 450px;
    height: 450px;
}

.circle {
    position: absolute;
    border-radius: 50%;
    backdrop-filter: blur(20px);
    border: 3px solid;
    animation: orbitFloat 10s ease-in-out infinite;
}

.circle-1 {
    width: 160px;
    height: 160px;
    top: 60px;
    left: 40px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.08));
    border-color: var(--bright-silver);
    animation-delay: 0s;
    box-shadow: var(--glow-silver);
}

.circle-2 {
    width: 120px;
    height: 120px;
    top: 140px;
    right: 50px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.06));
    border-color: var(--silver);
    animation-delay: 3s;
    box-shadow: 0 0 30px rgba(255, 255, 255, 0.4);
}

.circle-3 {
    width: 100px;
    height: 100px;
    bottom: 80px;
    left: 100px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.10));
    border-color: var(--bright-silver);
    animation-delay: 6s;
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.5);
}

@keyframes orbitFloat {
    0%, 100% { transform: translateY(0px) rotate(0deg) scale(1); }
    25% { transform: translateY(-30px) rotate(90deg) scale(1.1); }
    50% { transform: translateY(-60px) rotate(180deg) scale(1); }
    75% { transform: translateY(-30px) rotate(270deg) scale(0.95); }
}

/* Enhanced Features Section */
.features-preview {
    background: var(--glass-bg);
    backdrop-filter: blur(30px);
    border: 2px solid var(--glass-border);
    border-radius: 32px;
    padding: 100px 80px;
    text-align: center;
    color: var(--bright-silver);
    position: relative;
    overflow: hidden;
    animation: sectionReveal 2s ease-out 2.5s both;
    box-shadow: var(--shadow-dark);
}

.features-preview::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: conic-gradient(from 0deg, transparent, rgba(240, 246, 252, 0.03), transparent, rgba(201, 209, 217, 0.05), transparent);
    animation: rotate 30s linear infinite;
    z-index: -1;
}

@keyframes sectionReveal {
    from { transform: translateY(60px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

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

.features-preview h3 {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 64px;
    color: var(--bright-silver);
    animation: headingGlow 4s ease-in-out infinite;
    letter-spacing: -0.02em;
    text-shadow: 0 0 25px rgba(255, 255, 255, 0.8);
}

@keyframes headingGlow {
    0%, 100% { filter: drop-shadow(0 0 30px rgba(240, 246, 252, 0.4)); }
    50% { filter: drop-shadow(0 0 50px rgba(201, 209, 217, 0.6)); }
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 64px;
    margin-top: 64px;
}

.feature {
    background: var(--glass-bg);
    backdrop-filter: blur(25px);
    border: 2px solid var(--glass-border);
    border-radius: 24px;
    padding: 48px 40px;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    animation: featureReveal 1s ease-out both;
    box-shadow: var(--shadow-dark);
}

.feature:nth-child(1) { animation-delay: 2.8s; }
.feature:nth-child(2) { animation-delay: 3s; }
.feature:nth-child(3) { animation-delay: 3.2s; }

@keyframes featureReveal {
    from { transform: translateY(40px) scale(0.9); opacity: 0; }
    to { transform: translateY(0) scale(1); opacity: 1; }
}

.feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--silver), var(--bright-silver), var(--platinum));
    opacity: 0;
    transition: opacity 0.4s ease;
    z-index: -1;
}

.feature:hover {
    transform: translateY(-16px) scale(1.03);
    box-shadow: var(--shadow-silver);
    border-color: var(--silver);
}

.feature:hover::before {
    opacity: 0.1;
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: 32px;
    animation: iconBounce 3s ease-in-out infinite;
    filter: drop-shadow(0 0 20px rgba(240, 246, 252, 0.3));
}

.feature:nth-child(1) .feature-icon { animation-delay: 0s; }
.feature:nth-child(2) .feature-icon { animation-delay: 1s; }
.feature:nth-child(3) .feature-icon { animation-delay: 2s; }

@keyframes iconBounce {
    0%, 100% { transform: translateY(0px) scale(1); }
    50% { transform: translateY(-15px) scale(1.1); }
}

.feature h4 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--bright-silver);
    text-shadow: 0 0 15px rgba(255, 255, 255, 0.6);
}

.feature p {
    font-size: 1.2rem;
    color: var(--silver);
    line-height: 1.8;
    font-weight: 400;
}

/* Enhanced Footer */
footer {
    padding: 80px 0 40px;
    text-align: center;
    color: var(--bright-silver);
    animation: footerSlide 2s ease-out 3s both;
    border-top: 1px solid var(--glass-border);
    margin-top: 60px;
}

@keyframes footerSlide {
    from { transform: translateY(60px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
}

.social-links a {
    color: var(--accent-silver);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 16px;
    border-radius: 50%;
    background: var(--glass-bg);
    backdrop-filter: blur(15px);
    border: 2px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-dark);
}

.social-links a:hover {
    color: var(--primary-black);
    transform: translateY(-12px) scale(1.15) rotate(360deg);
    box-shadow: var(--shadow-silver);
    background: linear-gradient(135deg, var(--silver), var(--bright-silver));
    border-color: var(--bright-silver);
}

footer p {
    font-size: 1.1rem;
    color: var(--accent-silver);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-section {
        grid-template-columns: 1fr;
        gap: 80px;
        text-align: center;
    }
    
    .main-title {
        font-size: 3.5rem;
    }
    
    .countdown {
        justify-content: center;
        gap: 20px;
        flex-wrap: wrap;
    }
    
    .time-unit {
        padding: 24px 20px;
        min-width: 90px;
    }
    
    .time-unit .number {
        font-size: 2.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .features-preview {
        padding: 80px 40px;
    }
    
    .features-preview h3 {
        font-size: 3rem;
    }
    
    .input-group {
        flex-direction: column;
        max-width: 100%;
    }
    
    .input-group input,
    .input-group button {
        border-radius: 0;
    }
    
    .input-group input {
        border-radius: 16px 16px 0 0;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .input-group button {
        border-radius: 0 0 16px 16px;
        border-left: none;
        border-top: 1px solid var(--glass-border);
    }
    
    .placeholder-graphic {
        width: 350px;
        height: 350px;
    }
    
    .social-links {
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 2.5rem;
    }
    
    .main-title {
        font-size: 2.8rem;
    }
    
    .subtitle {
        font-size: 1.2rem;
    }
    
    .countdown {
        gap: 16px;
    }
    
    .time-unit {
        padding: 20px 16px;
        min-width: 80px;
    }
    
    .time-unit .number {
        font-size: 2rem;
    }
    
    .time-unit .label {
        font-size: 0.9rem;
    }
    
    .features-preview {
        padding: 60px 24px;
    }
    
    .feature {
        padding: 40px 32px;
    }
    
    .features-preview h3 {
        font-size: 2.5rem;
    }
}

/* Scroll-triggered animations */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: all 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Loading animation */
.loading {
    animation: pulse 2.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* Validation Error */
.validation-error {
    position: absolute;
    bottom: -40px;
    left: 0;
    color: #ef4444;
    font-size: 1rem;
    animation: slideInUp 0.4s ease-out;
    background: rgba(239, 68, 68, 0.1);
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

@keyframes slideInUp {
    from { transform: translateY(15px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Celebration Mode */
.celebration-mode {
    animation: celebrationPulse 2s ease-in-out infinite;
}

@keyframes celebrationPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.15); }
}

/* Enhanced transitions */
.time-unit {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.time-unit .number {
    transition: all 0.2s ease-in-out;
}

/* Mouse glow effect */
.mouse-glow {
    position: fixed;
    width: 120px;
    height: 120px;
    background: radial-gradient(circle, rgba(240, 246, 252, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: -1;
    transition: all 0.1s ease;
    mix-blend-mode: screen;
}