* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    -webkit-text-size-adjust: 100%;
    height: 100%;
}

body {
    font-family: 'Montserrat', sans-serif;
    background: #000000;
    color: #ffffff;
    min-height: 100vh;
    min-height: -webkit-fill-available;
    overflow-x: hidden;
    position: relative;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    -webkit-overflow-scrolling: touch;
}

.ukraine-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(0, 87, 183, 0.1) 0%, rgba(255, 215, 0, 0.1) 100%);
    clip-path: polygon(0 0, 100% 0, 0 100%);
    z-index: 0;
    pointer-events: none;
}

.canada-pattern {
    position: fixed;
    top: 0;
    right: 0;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 0, 0, 0.08) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 20px 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.top-bar {
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 40px;
    text-align: center;
}

.auth-nav {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 12px;
    z-index: 100;
}

.lang-switcher {
    position: fixed;
    top: 20px;
    left: 20px;
    display: flex;
    z-index: 100;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 30px;
    padding: 4px;
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    will-change: transform;
    -webkit-transform: translate3d(0, 0, 0);
}

.lang-btn {
    padding: 8px 18px;
    background: transparent;
    border: none;
    border-radius: 26px;
    color: rgba(255, 255, 255, 0.5);
    font-family: 'Montserrat', sans-serif;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 1px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    position: relative;
    z-index: 1;
}

.lang-btn:hover:not(.active) {
    color: rgba(255, 255, 255, 0.8);
}

.lang-btn.active {
    background: linear-gradient(135deg, #0057B7 0%, #FFD700 100%);
    color: #ffffff;
    box-shadow: 0 2px 12px rgba(0, 87, 183, 0.4);
}

.auth-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 22px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 25px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    white-space: nowrap;
    min-height: 40px;
}

.auth-nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.auth-nav-btn.primary {
    background: linear-gradient(135deg, #0057B7 0%, #FFD700 100%);
    border-color: transparent;
    color: #ffffff;
}

.auth-nav-btn.primary:hover {
    box-shadow: 0 5px 20px rgba(0, 87, 183, 0.3);
}

.hero {
    text-align: center;
    margin-bottom: 50px;
    animation: fadeInDown 1s ease-out;
}

.title-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 20px;
}

.project-text {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 6px;
    color: #ffffff;
    margin-bottom: 5px;
}

.iskra-text {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: 12px;
    background: linear-gradient(135deg, #0057B7 0%, #FFD700 50%, #0057B7 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shine 3s linear infinite;
    margin-bottom: 5px;
    line-height: 1;
}

.montreal-text {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 10px;
    color: #ffffff;
    margin-bottom: 10px;
}

.red-underline {
    width: 200px;
    height: 4px;
    background: #ff0000;
    border-radius: 2px;
}

.logo-container {
    margin-bottom: 30px;
}

.spark-logo {
    width: 120px;
    height: 120px;
    margin: 0 auto;
    animation: pulse 2s ease-in-out infinite;
}

.spark-icon {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 0 20px rgba(0, 87, 183, 0.5));
}

.tagline {
    font-size: 1.1rem;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 3px;
    margin-top: 20px;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    width: 100%;
    margin-bottom: 60px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    -webkit-transform: translate3d(0, 0, 0);
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(0, 87, 183, 0.5);
    box-shadow: 0 20px 40px rgba(0, 87, 183, 0.2);
}

.feature-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto 15px;
    transition: all 0.3s ease;
}

.icon-red { color: #ff0000; }
.icon-blue { color: #0057B7; }
.icon-yellow { color: #FFD700; }

.feature-card:hover .icon-red { filter: drop-shadow(0 0 10px rgba(255, 0, 0, 0.5)); }
.feature-card:hover .icon-blue { filter: drop-shadow(0 0 10px rgba(0, 87, 183, 0.5)); }
.feature-card:hover .icon-yellow { filter: drop-shadow(0 0 10px rgba(255, 215, 0, 0.5)); }

.feature-card h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: #ffffff;
    line-height: 1.4;
    letter-spacing: 0.5px;
}

.social {
    text-align: center;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out 0.5s both;
}

.social-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 30px;
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 1px;
    line-height: 1.6;
}

.highlight-red {
    color: #ff0000;
    font-weight: 700;
}

.social-links {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 50px;
    color: #ffffff;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    -webkit-transform: translate3d(0, 0, 0);
}

.social-link svg {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
}

.social-link:hover {
    transform: scale(1.05);
    background: rgba(255, 255, 255, 0.15);
}

.social-link.instagram:hover {
    border-color: #E1306C;
    box-shadow: 0 0 20px rgba(225, 48, 108, 0.3);
}

.social-link.tiktok:hover {
    border-color: #00f2ea;
    box-shadow: 0 0 20px rgba(0, 242, 234, 0.3);
}

.social-link.telegram:hover {
    border-color: #0088cc;
    box-shadow: 0 0 20px rgba(0, 136, 204, 0.3);
}

.footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
    letter-spacing: 2px;
}

.footer-left, .footer-right { font-weight: 600; }
.footer-center { display: flex; align-items: center; }
.maple-leaf { width: 20px; height: 20px; color: #ff0000; }

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

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes shine {
    to { background-position: 200% center; }
}

@media (max-width: 900px) {
    .features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .lang-switcher {
        top: 12px;
        left: 12px;
        bottom: auto;
        left: 12px;
        transform: none;
        z-index: 1000;
        padding: 3px;
        background: rgba(0, 0, 0, 0.6);
        border: 1px solid rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        will-change: transform;
        -webkit-transform: translate3d(0, 0, 0);
    }

    .lang-btn {
        padding: 8px 14px;
        font-size: 0.72rem;
        min-height: 36px;
    }

    .auth-nav {
        position: fixed;
        top: auto;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%);
        gap: 8px;
        z-index: 1000;
        background: rgba(0, 0, 0, 0.7);
        border: 1px solid rgba(255, 255, 255, 0.15);
        border-radius: 30px;
        padding: 5px;
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
    }

    .auth-nav:has(.auth-nav-btn:only-child) {
        padding: 3px 3px;
        width: fit-content;
    }

    .auth-nav .auth-nav-btn {
        padding: 10px 18px;
        font-size: 0.78rem;
        min-height: 40px;
        border-radius: 26px;
    }

    .top-bar {
        font-size: 0.7rem;
        letter-spacing: 2px;
        margin-bottom: 30px;
        margin-top: 65px;
        padding: 0 15px;
    }

    .project-text {
        font-size: 0.9rem;
        letter-spacing: 4px;
    }

    .iskra-text {
        font-size: 3rem;
        letter-spacing: 6px;
    }

    .montreal-text {
        font-size: 1.3rem;
        letter-spacing: 5px;
    }

    .red-underline {
        width: 120px;
        height: 3px;
    }

    .tagline {
        font-size: 0.8rem;
        letter-spacing: 1.5px;
        margin-top: 15px;
        padding: 0 10px;
    }

    .features {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        padding: 0 5px;
        margin-bottom: 40px;
    }

    .feature-card {
        padding: 20px 12px;
    }

    .feature-card:hover {
        transform: none;
    }

    .feature-icon {
        width: 36px;
        height: 36px;
        margin-bottom: 10px;
    }

    .feature-card h3 {
        font-size: 0.72rem;
        letter-spacing: 0.3px;
    }

    .social {
        margin-bottom: 30px;
        padding: 0 5px;
    }

    .social-title {
        font-size: 1rem;
        margin-bottom: 20px;
        letter-spacing: 0.5px;
    }

    .social-links {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .social-link {
        padding: 14px 0;
        font-size: 0.9rem;
        width: 100%;
        max-width: 300px;
        justify-content: center;
        min-height: 48px;
    }

    .social-link:hover {
        transform: none;
    }

    .footer {
        flex-direction: column;
        gap: 10px;
        text-align: center;
        font-size: 0.7rem;
        padding: 15px 0;
    }

    .spark-logo {
        width: 80px;
        height: 80px;
    }

    .container {
        padding: 15px 15px 100px;
    }

    .hero {
        margin-bottom: 30px;
    }
}

@media (max-width: 480px) {
    .auth-nav {
        gap: 0;
        padding: 3px;
    }

    .auth-nav:has(.auth-nav-btn:only-child) {
        padding: 2px 2px;
        width: fit-content;
    }

    .auth-nav .auth-nav-btn {
        padding: 8px 14px;
        font-size: 0.72rem;
        min-height: 36px;
        letter-spacing: 0.5px;
    }

    .top-bar {
        font-size: 0.6rem;
        letter-spacing: 1.5px;
        margin-top: 55px;
    }

    .project-text {
        font-size: 0.75rem;
        letter-spacing: 3px;
    }

    .iskra-text {
        font-size: 2.2rem;
        letter-spacing: 4px;
    }

    .montreal-text {
        font-size: 1rem;
        letter-spacing: 4px;
    }

    .red-underline {
        width: 80px;
    }

    .tagline {
        font-size: 0.7rem;
        letter-spacing: 1px;
    }

    .features {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .feature-card {
        padding: 16px 10px;
    }

    .feature-icon {
        width: 30px;
        height: 30px;
    }

    .feature-card h3 {
        font-size: 0.65rem;
    }

    .social-title {
        font-size: 0.9rem;
    }

    .social-link {
        padding: 12px 0;
        font-size: 0.85rem;
        max-width: 280px;
    }

    .social-link svg {
        width: 20px;
        height: 20px;
    }

    .spark-logo {
        width: 60px;
        height: 60px;
    }

    .container {
        padding: 10px 10px 90px;
    }

    .ukraine-pattern {
        width: 150px;
        height: 150px;
    }

    .canada-pattern {
        width: 150px;
        height: 150px;
    }
}

@media (hover: none) and (pointer: coarse) {
    .feature-card:hover {
        transform: none;
        background: rgba(255, 255, 255, 0.05);
        border-color: rgba(255, 255, 255, 0.1);
        box-shadow: none;
    }

    .social-link:hover {
        transform: none;
        background: rgba(255, 255, 255, 0.05);
    }

    .auth-nav-btn:hover {
        transform: none;
    }

    .feature-card:hover .icon-red,
    .feature-card:hover .icon-blue,
    .feature-card:hover .icon-yellow {
        filter: none;
    }
}