/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #00d4ff;
    --secondary-color: #ff00ff;
    --accent-color: #7c3aed;
    --dark-bg: #0a0a0f;
    --text-light: #ffffff;
    --text-gray: #b4b4b4;
    --success-color: #10b981;
    --error-color: #ef4444;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-border: rgba(255, 255, 255, 0.1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', sans-serif;
    background: var(--dark-bg);
    color: var(--text-light);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* ===== LOADER ===== */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--dark-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(0, 212, 255, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* ===== VIDEO BACKGROUND ===== */
.bg-video {
    position: fixed;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    z-index: -2;
    object-fit: cover;
    opacity: 0.4;
}

/* ===== CANVAS PARTICLES ===== */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ===== OVERLAY ===== */
.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(10, 10, 15, 0.85) 0%, 
        rgba(124, 58, 237, 0.2) 50%, 
        rgba(10, 10, 15, 0.85) 100%);
    z-index: -1;
    animation: gradientShift 15s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { opacity: 0.85; }
    50% { opacity: 0.75; }
}

/* ===== CONTAINER ===== */
.container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

/* ===== HERO SECTION ===== */
.hero {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInUp 1s ease-out;
}

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

.logo-container {
    margin-bottom: 2rem;
}

.logo {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    letter-spacing: -2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 80px rgba(0, 212, 255, 0.5);
    animation: glow 3s ease-in-out infinite;
    position: relative;
}

.logo-plus {
    color: var(--secondary-color);
    font-weight: 300;
}

@keyframes glow {
    0%, 100% {
        filter: drop-shadow(0 0 20px rgba(0, 212, 255, 0.6));
    }
    50% {
        filter: drop-shadow(0 0 40px rgba(255, 0, 255, 0.8));
    }
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.6;
    animation: fadeInUp 1s ease-out 0.4s both;
}

/* ===== CTA & FORM ===== */
.cta-container {
    animation: fadeInUp 1s ease-out 0.6s both;
}

.email-form {
    display: flex;
    gap: 1rem;
    max-width: 600px;
    margin: 0 auto 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

#email-input {
    flex: 1;
    min-width: 250px;
    padding: 1rem 1.5rem;
    font-size: 1rem;
    font-family: inherit;
    background: var(--card-bg);
    border: 2px solid var(--card-border);
    border-radius: 50px;
    color: var(--text-light);
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

#email-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

#email-input::placeholder {
    color: var(--text-gray);
}

.btn-submit {
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
    border-radius: 50px;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-submit::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-submit:hover::before {
    width: 300px;
    height: 300px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

.btn-submit:active {
    transform: translateY(0);
}

.btn-text, .btn-icon {
    position: relative;
    z-index: 1;
}

.btn-icon {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.btn-submit:hover .btn-icon {
    transform: translateX(5px);
}

.form-message {
    min-height: 24px;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.form-message.show {
    opacity: 1;
}

.form-message.success {
    color: var(--success-color);
}

.form-message.error {
    color: var(--error-color);
}

/* ===== COUNTDOWN ===== */
.countdown-section {
    margin-bottom: 4rem;
    animation: fadeInUp 1s ease-out 0.8s both;
}

.countdown-title {
    font-size: clamp(1.5rem, 3vw, 2rem);
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 600;
}

.countdown {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1.5rem;
    max-width: 700px;
    margin: 0 auto;
}

.countdown-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2rem 1rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.countdown-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.2);
}

.countdown-value {
    display: block;
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.countdown-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===== FEATURES ===== */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
    margin-bottom: 4rem;
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    animation: fadeInUp 1s ease-out both;
}

.feature-card:nth-child(1) { animation-delay: 1s; }
.feature-card:nth-child(2) { animation-delay: 1.1s; }
.feature-card:nth-child(3) { animation-delay: 1.2s; }
.feature-card:nth-child(4) { animation-delay: 1.3s; }

.feature-card:hover {
    transform: translateY(-10px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.3);
}

.feature-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 212, 255, 0.3);
}

.feature-icon svg {
    width: 28px;
    height: 28px;
    color: var(--accent-color);
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.feature-desc {
    font-size: 1rem;
    color: var(--text-gray);
    line-height: 1.6;
}

/* ===== FOOTER ===== */
.footer {
    text-align: center;
    padding: 2rem 0;
    animation: fadeInUp 1s ease-out 1.4s both;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.social-link {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 50%;
    color: var(--text-light);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.social-link:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-color: var(--primary-color);
    transform: translateY(-5px) rotate(360deg);
    box-shadow: 0 10px 20px rgba(0, 212, 255, 0.4);
}

.social-link svg {
    width: 24px;
    height: 24px;
}

.copyright {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .container {
        padding: 1.5rem 1rem;
    }
    
    .email-form {
        flex-direction: column;
        gap: 1rem;
    }
    
    #email-input,
    .btn-submit {
        width: 100%;
    }
    
    .countdown {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .countdown-item {
        padding: 1.5rem 0.5rem;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        margin-bottom: 3rem;
    }
    
    .countdown-section {
        margin-bottom: 3rem;
    }
    
    .features {
        margin-bottom: 3rem;
    }
    
    .countdown-value {
        font-size: 2rem;
    }
}

@media (min-width: 1920px) {
    .container {
        max-width: 1600px;
    }
    
    .features {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ===== ACCESSIBILITY ===== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* ===== PRINT ===== */
@media print {
    .bg-video,
    #particles-canvas,
    .overlay {
        display: none;
    }
}