/* SPK2GO Landing Page - Modern Responsive CSS */

/* CSS Custom Properties */
:root {
    --primary-color: #00acc1;
    --secondary-color: rgb(238, 188, 78);
    --accent-color: #26a69a;
    --background-dark: #1e3a5f;
    --background-darker: #0f2744;
    --text-primary: #ffffff;
    --text-secondary: #e0f2f1;
    --gradient-primary: linear-gradient(135deg, #00acc1 0%, #4fc3f7 100%);
    --gradient-secondary: linear-gradient(135deg, rgb(238, 188, 78) 0%, rgb(218, 168, 58) 100%);
    --shadow-glow: 0 0 20px rgba(0, 172, 193, 0.2);
    --border-gradient: linear-gradient(90deg, #00acc1, #26a69a, #ffb300);
    --container-max-width: 1200px;
    --border-radius: 15px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Orbitron', monospace;
    --font-secondary: 'Inter', sans-serif;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-secondary);
    line-height: 1.6;
    color: var(--text-primary);
    background: url('spk2gobg.webp') center top / cover no-repeat fixed;
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
}

/* Background Overlay */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('spk2gobg.webp') center top / cover no-repeat;
    z-index: -2;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(0, 212, 255, 0.3) 0%, rgba(0, 180, 255, 0.2) 30%, rgba(26, 59, 85, 0.6) 70%, rgba(3, 12, 20, 0.8) 100%);
    z-index: -1;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

/* Welcome Animation Screen */
.welcome-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0f2744 0%, #1e3a5f 50%, #0f2744 100%);
    background-size: 400% 400%;
    animation: gradientShift 3s ease-in-out infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    opacity: 1;
    visibility: visible;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.welcome-screen.fade-out {
    opacity: 0;
    visibility: hidden;
    transform: scale(1.1);
}

.welcome-content {
    text-align: center;
    color: var(--text-primary);
    position: relative;
    z-index: 2;
}

.welcome-logo {
    margin-bottom: 2rem;
    animation: logoEntrance 2s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
    transform: translateY(50px) scale(0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.welcome-logo-img {
    max-width: 120px;
    height: auto;
    display: block;
    margin-bottom: 0.5rem;
    transition: var(--transition);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.welcome-logo-img:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.welcome-title {
    font-family: var(--font-primary);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: titleFadeIn 1s ease-out 0.5s forwards;
    opacity: 0;
}

.welcome-brand {
    font-family: var(--font-primary);
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 172, 193, 0.3);
    letter-spacing: 4px;
    text-transform: uppercase;
    margin-bottom: 1rem;
    animation: brandZoom 1.5s cubic-bezier(0.4, 0, 0.2, 1) 1s forwards;
    opacity: 0;
    transform: scale(0.5);
}

.welcome-subtitle {
    margin-bottom: 3rem;
    animation: subtitleSlideUp 1s ease-out 2s forwards;
    opacity: 0;
    transform: translateY(30px);
}

.typing-text {
    font-family: var(--font-secondary);
    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--secondary-color);
    text-transform: uppercase;
    letter-spacing: 1px;
    position: relative;
    display: inline-block;
}

.typing-text::after {
    content: '|';
    color: var(--primary-color);
    animation: blink 1s infinite;
    margin-left: 2px;
}

.welcome-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.welcome-particles .particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--secondary-color);
    border-radius: 50%;
    animation: floatParticle 6s ease-in-out infinite;
    opacity: 0.7;
}

.welcome-particles .particle:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
    animation-duration: 4s;
}

.welcome-particles .particle:nth-child(2) {
    top: 60%;
    left: 80%;
    animation-delay: 1s;
    animation-duration: 5s;
}

.welcome-particles .particle:nth-child(3) {
    top: 30%;
    left: 70%;
    animation-delay: 2s;
    animation-duration: 6s;
}

.welcome-particles .particle:nth-child(4) {
    top: 80%;
    left: 20%;
    animation-delay: 1.5s;
    animation-duration: 4.5s;
}

.welcome-particles .particle:nth-child(5) {
    top: 10%;
    left: 50%;
    animation-delay: 0.5s;
    animation-duration: 5.5s;
}

/* Welcome Screen Animations */
@keyframes gradientShift {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

@keyframes logoEntrance {
    0% {
        opacity: 0;
        transform: translateY(50px) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes titleFadeIn {
    0% {
        opacity: 0;
        transform: translateY(20px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes brandZoom {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes subtitleSlideUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes blink {
    0%, 50% {
        opacity: 1;
    }
    51%, 100% {
        opacity: 0;
    }
}

@keyframes floatParticle {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0f2744 0%, #1e3a5f 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loading-content {
    text-align: center;
    color: var(--text-primary);
}

.loading-logo h2 {
    font-family: var(--font-primary);
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
}

.atom-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: spin 2s linear infinite;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(0, 172, 193, 0.3);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: linear-gradient(135deg, rgba(16, 50, 77, 0.95) 0%, rgba(3, 12, 20, 0.95) 100%);
    backdrop-filter: blur(15px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.navbar.scrolled {
    background: linear-gradient(135deg, rgba(16, 50, 77, 0.98) 0%, rgba(3, 12, 20, 0.98) 100%);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 2rem;
    max-width: var(--container-max-width);
    margin: 0 auto;
}

.logo-img {
    height: 80px;
    width: auto;
    transition: var(--transition);
}

.logo-img:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-telegram-btn {
    padding: 0.7rem 1.5rem !important;
    font-size: 1rem !important;
    border-radius: 25px !important;
    animation: constantGlow 2s ease-in-out infinite;
    transition: var(--transition);
}

@keyframes constantGlow {
    0% {
        box-shadow: 0 0 10px rgba(238, 188, 78, 0.4);
        filter: brightness(1);
    }
    50% {
        box-shadow: 0 0 25px rgba(238, 188, 78, 0.7), 0 0 35px rgba(238, 188, 78, 0.4);
        filter: brightness(1.1);
    }
    100% {
        box-shadow: 0 0 10px rgba(238, 188, 78, 0.4);
        filter: brightness(1);
    }
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
    min-height: 44px;
    min-width: 44px;
    align-items: center;
    justify-content: center;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    margin: 3px 0;
    transition: var(--transition);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
}

/* Mobile Menu */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: linear-gradient(135deg, rgba(16, 50, 77, 0.98) 0%, rgba(3, 12, 20, 0.98) 100%);
        backdrop-filter: blur(15px);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        padding: 2rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-menu .btn-primary {
        width: 100%;
        justify-content: center;
        margin-top: 1rem;
    }
}

/* Hero Section */
.dashboard-section {
    padding: 150px 0 80px;
    min-height: calc(100vh - 120px);
    position: relative;
}

.dashboard-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    min-height: 70vh;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.dashboard-content {
    text-align: left;
    padding-right: 2rem;
}

.main-title {
    font-family: var(--font-primary);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 30px rgba(0, 172, 193, 0.3);
}

.hero-tagline {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: rgba(255, 255, 255, 0.95);
    margin: 2rem 0 1rem 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 2.5vw, 2rem);
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.website-heading {
    width: 100%;
    font-family: var(--font-primary);
    font-weight: 700;
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    letter-spacing: 1px;
    text-transform: uppercase;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 2rem;
    text-shadow: 0 0 30px rgba(0, 172, 193, 0.5);
    text-align: left;
    padding: 0.3rem 0;
    position: relative;
    animation: websiteHeadingGlow 3s ease-in-out infinite;
    filter: brightness(1.1) contrast(1.05);
}

@keyframes websiteHeadingGlow {
    0%, 100% {
        text-shadow: 0 0 40px rgba(0, 172, 193, 0.6);
        transform: scale(1);
        filter: brightness(1.2) contrast(1.1);
    }
    50% {
        text-shadow: 0 0 60px rgba(0, 172, 193, 0.8), 0 0 80px rgba(0, 172, 193, 0.4);
        transform: scale(1.02);
        filter: brightness(1.3) contrast(1.2);
    }
}

.action-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-top: 3rem;
}

.action-buttons .btn-primary,
.action-buttons .btn-secondary,
.action-buttons .btn-artist-signup {
    width: 300px;
    justify-content: center;
    min-height: 44px;
}

/* Artist Sign-Up Card */
.btn-artist-signup {
    width: 300px;
    background: var(--gradient-secondary);
    color: #1a365d;
    box-shadow: 0 0 25px rgba(238, 188, 78, 0.5);
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-decoration: none;
    transition: var(--transition);
    overflow: hidden;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.btn-artist-signup:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 35px rgba(238, 188, 78, 0.7);
}

.btn-artist-signup:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.artist-card-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 700;
    font-family: var(--font-secondary);
    text-align: center;
    justify-content: center;
}

.artist-card-header i {
    font-size: 1.2rem;
}

.artist-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.artist-card-content p {
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
    color: #0f3242;
}

.artist-card-content ul {
    margin: 0;
    padding-left: 1rem;
    font-size: 0.85rem;
    line-height: 1.4;
}

.artist-card-content li {
    margin-bottom: 0.5rem;
    color: #0f3242;
}

.artist-card-content strong {
    color: #1a365d;
    font-weight: 700;
}

.contact-info {
    margin-top: 0.5rem !important;
    font-weight: 600;
}

.artist-email-link {
    color: #1a365d;
    text-decoration: none;
    font-weight: 700;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.artist-email-link:hover {
    border-bottom-color: #1a365d;
    color: #0f3242;
}

.artist-card-footer {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(26, 54, 93, 0.3);
}

.btn-telegram-artist {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1.2rem;
    border-radius: 25px;
    text-decoration: none;
    color: #1a365d;
    background: rgba(0, 172, 193, 0.1);
    border: 2px solid #00acc1;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    width: 100%;
    justify-content: center;
    min-height: 44px;
    font-family: var(--font-secondary);
}

.btn-telegram-artist:hover {
    background: #00acc1;
    color: #ffffff;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 172, 193, 0.3);
}

.btn-telegram-artist:focus {
    outline: 2px solid var(--secondary-color);
    outline-offset: 2px;
}

.btn-telegram-artist i {
    font-size: 1.1rem;
}

.mobile-telegram-btn {
    display: none !important;
}

/* QR Section */
.dashboard-qr {
    display: flex;
    justify-content: center;
    align-items: center;
}

.qr-container {
    max-width: 420px;
    width: 100%;
    margin: 0 auto;
    text-align: center;
    padding: 2rem;
    background: rgba(30, 58, 95, 0.6);
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.qr-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.qr-container h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-family: var(--font-primary);
    font-size: 1.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.qr-placeholder {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--border-radius);
    padding: 12px;
    margin-top: 2rem;
    min-height: 0;
    display: flex;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    aspect-ratio: 1 / 1;
    transition: var(--transition);
}

.qr-placeholder:hover {
    transform: scale(1.02);
}

.qr-image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    background: #ffffff;
    border-radius: 8px;
    max-width: 100%;
    max-height: 100%;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    animation: scrollBounce 2s ease-in-out infinite;
    cursor: pointer;
    transition: var(--transition);
}

.scroll-indicator:hover {
    color: var(--secondary-color);
    transform: translateX(-50%) translateY(-5px);
}

.scroll-text {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.scroll-arrow {
    display: flex;
    justify-content: center;
    align-items: center;
}

.arrow-down {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-top: none;
    border-left: none;
    transform: rotate(45deg);
    animation: arrowPulse 2s ease-in-out infinite;
}

@keyframes scrollBounce {
    0%, 100% { 
        transform: translateX(-50%) translateY(0); 
        opacity: 0.8;
    }
    50% { 
        transform: translateX(-50%) translateY(-10px); 
        opacity: 1;
    }
}

@keyframes arrowPulse {
    0%, 100% { 
        border-color: rgba(255, 255, 255, 0.6);
        transform: rotate(45deg) scale(1);
    }
    50% { 
        border-color: rgba(238, 188, 78, 0.9);
        transform: rotate(45deg) scale(1.2);
    }
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    min-height: 44px;
    font-family: var(--font-secondary);
}

.btn-primary {
    background: var(--gradient-secondary);
    color: #1a365d;
    box-shadow: 0 0 25px rgba(238, 188, 78, 0.5);
    font-weight: 700;
    border: 2px solid transparent;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 0 35px rgba(238, 188, 78, 0.7);
}

.btn-primary:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-secondary {
    background: var(--secondary-color);
    color: #0f3242;
    border: 2px solid var(--secondary-color);
}

.btn-secondary:hover {
    background: rgba(238, 188, 78, 0.9);
    border-color: var(--secondary-color);
    transform: translateY(-3px);
}

.btn-secondary:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-glow {
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover .btn-glow {
    left: 100%;
}

/* CTA Section */
.cta-telegram-section {
    padding: 5rem 0;
    position: relative;
}

.cta-telegram {
    background: rgba(30, 58, 95, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.cta-telegram:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.cta-steps {
    display: grid;
    gap: 1rem;
    margin-bottom: 2rem;
}

.cta-step {
    font-weight: 800;
    font-size: clamp(1rem, 2.6vw, 1.2rem);
    color: var(--text-primary);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.cta-step strong {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-step .dim {
    color: var(--text-secondary);
}

.btn-telegram-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: 999px;
    text-decoration: none;
    color: #1a365d;
    background: var(--gradient-secondary);
    font-weight: 800;
    font-size: 1.1rem;
    box-shadow: 0 0 25px rgba(238, 188, 78, 0.35);
    position: relative;
    overflow: hidden;
    animation: ctaPulse 3.8s ease-in-out infinite;
    transition: var(--transition);
    min-height: 44px;
}

.btn-telegram-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 35px rgba(238, 188, 78, 0.6);
}

.btn-telegram-cta:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn-telegram-cta i {
    font-size: 1.2rem;
}

.btn-telegram-cta::after {
    content: '';
    position: absolute;
    top: 0;
    left: -150%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transform: skewX(-20deg);
    animation: shine 4.5s infinite;
}

@keyframes shine {
    0% { left: -150%; }
    60% { left: 120%; }
    100% { left: 120%; }
}

@keyframes ctaPulse {
    0%, 100% { 
        box-shadow: 0 0 25px rgba(238, 188, 78, 0.35); 
        transform: translateY(0); 
    }
    50% { 
        box-shadow: 0 0 40px rgba(238, 188, 78, 0.55); 
        transform: translateY(-1px); 
    }
}

/* Features Section */
.features-section {
    padding: 5rem 0;
    position: relative;
}

.features-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.feature-card {
    background: rgba(30, 58, 95, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    padding: 2rem 1.5rem;
    box-shadow: 0 10px 24px rgba(0,0,0,0.25);
    backdrop-filter: blur(8px);
    transition: var(--transition);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(0, 172, 193, 0.3);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.2);
}

.mobile-support-icon {
    animation: mobilePulse 3s ease-in-out infinite;
}

@keyframes mobilePulse {
    0%, 100% {
        transform: scale(1);
        filter: brightness(1);
    }
    50% {
        transform: scale(1.1);
        filter: brightness(1.2);
    }
}

.feature-title {
    font-family: var(--font-primary);
    font-size: 1.1rem;
    letter-spacing: 1px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.feature-headline {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: rgba(3, 12, 20, 0.9);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 0;
    text-align: center;
}

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

/* Floating Telegram Button */
.floating-telegram {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--gradient-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #1a365d;
    cursor: pointer;
    z-index: 1000;
    transition: var(--transition);
    animation: pulse 2s infinite;
    font-weight: bold;
    border: none;
    min-height: 44px;
    min-width: 44px;
}

.floating-telegram:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(238, 188, 78, 0.7);
}

.floating-telegram:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: pulse-ring 2s cubic-bezier(0.455, 0.03, 0.515, 0.955) infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0.7); }
    70% { box-shadow: 0 0 0 10px rgba(0, 212, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(0, 212, 255, 0); }
}

@keyframes pulse-ring {
    0% {
        transform: scale(.33);
        opacity: 1;
    }
    80%, 100% {
        transform: scale(2);
        opacity: 0;
    }
}

/* Particle Effects */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--secondary-color);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
    opacity: 0.7;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 1;
    }
}

/* Animations */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive Design */

/* Large Tablets and Small Desktops */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .dashboard-container {
        gap: 3rem;
    }
    
    .features-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .main-title {
        font-size: clamp(2.5rem, 5vw, 4rem);
    }
    
    .hero-tagline {
        font-size: clamp(1.3rem, 2.5vw, 2rem);
    }
}

/* Tablets */
@media (max-width: 768px) {
    body {
        background: url('spk2gobg.webp') center center / cover no-repeat;
        background-attachment: scroll;
    }
    
    .welcome-brand {
        font-size: clamp(3rem, 8vw, 6rem);
        letter-spacing: 3px;
    }
    
    .welcome-logo-img {
        max-width: 100px;
    }
    
    .welcome-title {
        font-size: clamp(1.5rem, 4vw, 2.5rem);
        letter-spacing: 1px;
    }
    
    .typing-text {
        font-size: clamp(1rem, 2.5vw, 1.5rem);
    }
    
    .welcome-particles .particle {
        width: 3px;
        height: 3px;
    }
    
    body::before {
        top: 0;
        background: url('spk2gobg.webp') center center / cover no-repeat;
        background-attachment: scroll;
    }
    
    body::after {
        top: 0;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .dashboard-section {
        padding: 120px 0 60px;
    }
    
    .dashboard-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .dashboard-content {
        text-align: center;
        padding-right: 0;
        order: 1;
    }
    
    .dashboard-qr {
        order: 2;
        margin-top: 2rem;
    }
    
    .qr-container {
        max-width: 350px;
        margin: 0 auto;
    }
    
    .action-buttons {
        justify-content: center;
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }
    
    .btn-artist-signup {
        width: 100%;
        max-width: 300px;
        padding: 1.2rem;
        min-height: 240px;
    }
    
    .artist-card-header {
        font-size: 1rem;
        margin-bottom: 0.8rem;
    }
    
    .artist-card-content p {
        font-size: 0.85rem;
    }
    
    .artist-card-content ul {
        font-size: 0.8rem;
    }
    
    .artist-card-content li {
        margin-bottom: 0.4rem;
    }
    
    .artist-card-footer {
        margin-top: 0.8rem;
        padding-top: 0.8rem;
    }
    
    .btn-telegram-artist {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }
    
    .mobile-telegram-btn {
        display: inline-flex !important;
        animation: constantGlow 2s ease-in-out infinite;
        padding: 0.8rem 1.5rem;
        font-size: 1rem;
        border-radius: 25px;
    }
    
    .scroll-indicator {
        bottom: 0.5rem;
        font-size: 0.8rem;
    }
    
    .scroll-text {
        font-size: 0.75rem;
        margin-bottom: 0.3rem;
    }
    
    .arrow-down {
        width: 16px;
        height: 16px;
    }
    
    .floating-telegram {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .cta-telegram {
        padding: 2rem 1.5rem;
    }
    
    .cta-step {
        font-size: clamp(0.9rem, 2.2vw, 1.1rem);
    }
}

/* Small Mobile Devices */
@media (max-width: 576px) {
    .container {
        padding: 0 1rem;
    }
    
    .welcome-brand {
        font-size: clamp(2.5rem, 6vw, 4rem);
        letter-spacing: 2px;
        margin-bottom: 0.5rem;
    }
    
    .welcome-logo-img {
        max-width: 70px;
    }
    
    .welcome-title {
        font-size: clamp(1.2rem, 3vw, 2rem);
        margin-bottom: 0.3rem;
    }
    
    .typing-text {
        font-size: clamp(0.9rem, 2vw, 1.2rem);
    }
    
    .welcome-logo {
        margin-bottom: 1.5rem;
    }
    
    .welcome-subtitle {
        margin-bottom: 2rem;
    }
    
    .welcome-particles .particle {
        width: 2px;
        height: 2px;
    }
    
    .nav-container {
        padding: 0.5rem 1rem;
    }
    
    .logo-img {
        height: 60px;
    }
    
    .dashboard-section {
        padding: 100px 0 40px;
    }
    
    .main-title {
        font-size: clamp(2rem, 8vw, 3rem);
        margin-bottom: 1.5rem;
    }
    
    .hero-tagline {
        font-size: clamp(1.1rem, 4vw, 1.6rem);
        margin: 1.5rem 0 1rem 0;
    }
    
    .hero-subtitle {
        font-size: clamp(1rem, 3.5vw, 1.4rem);
        margin-bottom: 0.5rem;
    }
    
    .website-heading {
        font-size: clamp(0.9rem, 3vw, 1.2rem);
        margin-bottom: 1.5rem;
        padding: 0.2rem 0;
        letter-spacing: 1px;
    }
    
    .action-buttons {
        gap: 1rem;
    }
    
    .btn-primary, .btn-secondary, .btn-artist-signup {
        padding: 0.8rem 1.5rem;
        font-size: 0.95rem;
        width: 100%;
        max-width: 280px;
    }
    
    .btn-artist-signup {
        padding: 1rem;
        min-height: 220px;
    }
    
    .artist-card-header {
        font-size: 0.95rem;
        margin-bottom: 0.6rem;
    }
    
    .artist-card-content p {
        font-size: 0.8rem;
    }
    
    .artist-card-content ul {
        font-size: 0.75rem;
    }
    
    .artist-card-content li {
        margin-bottom: 0.3rem;
    }
    
    .artist-card-footer {
        margin-top: 0.6rem;
        padding-top: 0.6rem;
    }
    
    .btn-telegram-artist {
        padding: 0.5rem 0.9rem;
        font-size: 0.8rem;
    }
    
    .qr-container {
        max-width: 280px;
        padding: 1rem;
    }
    
    .qr-placeholder {
        padding: 8px;
    }
    
    .features-row {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .feature-card {
        padding: 1.5rem 1rem;
    }
    
    .feature-title {
        font-size: 1rem;
    }
    
    .feature-headline {
        font-size: 1rem;
    }
    
    .feature-text {
        font-size: 0.9rem;
    }
    
    .cta-telegram {
        padding: 1.5rem 1rem;
    }
    
    .cta-step {
        font-size: clamp(0.8rem, 3vw, 1rem);
        margin-bottom: 0.5rem;
    }
    
    .btn-telegram-cta {
        padding: 0.8rem 1.4rem;
        font-size: 0.95rem;
    }
    
    .floating-telegram {
        bottom: 15px;
        right: 15px;
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
}

/* Extra Small Mobile Devices */
@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .nav-container {
        padding: 0.4rem 0.75rem;
    }
    
    .logo-img {
        height: 50px;
    }
    
    .welcome-logo-img {
        max-width: 60px;
    }
    
    .dashboard-section {
        padding: 90px 0 30px;
    }
    
    .main-title {
        font-size: clamp(1.6rem, 6vw, 2.2rem);
        line-height: 1.2;
    }
    
    .hero-tagline {
        font-size: clamp(0.9rem, 3vw, 1.2rem);
        margin: 1rem 0 0.5rem 0;
    }
    
    .hero-subtitle {
        font-size: clamp(0.8rem, 3vw, 1.1rem);
        margin-bottom: 0.3rem;
    }
    
    .website-heading {
        font-size: clamp(0.8rem, 2.5vw, 1rem);
        padding: 0.2rem 0;
        letter-spacing: 0.5px;
        margin-bottom: 1rem;
    }
    
    .btn-primary, .btn-secondary, .btn-artist-signup {
        padding: 0.7rem 1.2rem;
        font-size: 0.9rem;
        max-width: 260px;
    }
    
    .btn-artist-signup {
        padding: 0.8rem;
        min-height: 200px;
    }
    
    .artist-card-header {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }
    
    .artist-card-content p {
        font-size: 0.75rem;
    }
    
    .artist-card-content ul {
        font-size: 0.7rem;
    }
    
    .artist-card-content li {
        margin-bottom: 0.25rem;
    }
    
    .artist-card-footer {
        margin-top: 0.5rem;
        padding-top: 0.5rem;
    }
    
    .btn-telegram-artist {
        padding: 0.45rem 0.8rem;
        font-size: 0.75rem;
    }
    
    .qr-container {
        max-width: 220px;
        padding: 0.8rem;
    }
    
    .qr-placeholder {
        padding: 6px;
    }
    
    .feature-card {
        padding: 1rem 0.75rem;
    }
    
    .feature-title {
        font-size: 0.9rem;
    }
    
    .feature-headline {
        font-size: 0.9rem;
    }
    
    .feature-text {
        font-size: 0.85rem;
    }
    
    .cta-telegram {
        padding: 1rem 0.75rem;
    }
    
    .cta-step {
        font-size: clamp(0.75rem, 2.5vw, 0.9rem);
    }
    
    .btn-telegram-cta {
        padding: 0.7rem 1.2rem;
        font-size: 0.9rem;
    }
    
    .floating-telegram {
        bottom: 10px;
        right: 10px;
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

/* Landscape Mobile Orientation */
@media (max-width: 768px) and (orientation: landscape) {
    .dashboard-section {
        padding: 100px 0 40px;
        min-height: auto;
    }
    
    .dashboard-container {
        min-height: auto;
    }
    
    .main-title {
        font-size: clamp(2rem, 4vw, 3rem);
    }
    
    .hero-tagline {
        font-size: clamp(1.2rem, 2.5vw, 1.8rem);
        margin: 1rem 0 0.5rem 0;
    }
    
    .hero-subtitle {
        font-size: clamp(1rem, 2.5vw, 1.4rem);
        margin-bottom: 1.5rem;
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Touch and Accessibility Improvements */
@media (hover: none) and (pointer: coarse) {
    .btn-primary, .btn-secondary, .btn-telegram-cta {
        min-height: 44px;
        min-width: 44px;
    }
    
    .floating-telegram {
        min-height: 50px;
        min-width: 50px;
    }
    
    .nav-toggle {
        min-height: 44px;
        min-width: 44px;
    }
}

/* High DPI Display Support */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo-img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
    
    .qr-image {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .particle {
        animation: none;
    }
    
    .floating-telegram {
        animation: none;
    }
    
    .pulse-ring {
        animation: none;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .floating-telegram,
    .scroll-indicator,
    .particles-container {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .main-title,
    .hero-tagline,
    .feature-title {
        color: black !important;
        -webkit-text-fill-color: black !important;
    }
}