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

body {
    background: #0a0808;
    min-height: 100vh;
    font-family: 'Space Grotesk', sans-serif;
    color: #e8ddd0;
    overflow-x: hidden;
    padding: 0;
    position: relative;
}

.gradient-bg {
    position: fixed;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(ellipse at 30% 20%, rgba(247, 151, 29, 0.07) 0%, transparent 55%),
        radial-gradient(ellipse at 70% 80%, rgba(247, 151, 29, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(247, 151, 29, 0.02) 0%, transparent 40%),
        #0a0808;
    animation: breathe 14s ease-in-out infinite alternate;
}

@keyframes breathe {
    0% { opacity: 0.7; transform: scale(1); }
    100% { opacity: 1; transform: scale(1.06); }
}

.particles {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(247, 151, 29, 0.10);
    border-radius: 50%;
    animation: floatParticle 26s infinite linear;
}

@keyframes floatParticle {
    0% { transform: translate3d(0, 0, 0) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translate3d(var(--tx), var(--ty), 0) scale(1); opacity: 0; }
}

.header-wrapper {
    position: sticky;
    top: 0;
    z-index: 100;
    background: transparent;
    box-shadow: none;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.7rem 1.8rem;
    background: rgba(10, 8, 8, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 60px;
    border: 1px solid rgba(247, 151, 29, 0.06);
    box-shadow: none;
    transition: all 0.3s;
    margin: 1rem auto 0;
}

.header:hover {
    border-color: rgba(247, 151, 29, 0.12);
}

.logo-btn {
    position: relative;
    display: flex;
    cursor: pointer;
    background: none;
    border: none;
    color: #e8ddd0;
    font-size: 2em;
    font-weight: 600;
    transition: 0.5s;
    font-family: 'Space Grotesk', sans-serif;
    text-decoration: none;
    padding: 0;
    line-height: 1;
}

.logo-btn .dev {
    background: #f7971d;
    color: #0a0808;
    padding: 0 4px;
    border-radius: 6px;
    transition: 0.5s;
}

.logo-btn .vad5m {
    position: relative;
    padding: 0 4px;
}

.logo-btn .vad5m::before,
.logo-btn .vad5m::after {
    content: "";
    position: absolute;
    background: radial-gradient(circle at 50% 50%, #f7471d, #f7471d00 75%);
    width: 12px;
    height: 12px;
    bottom: 3px;
    opacity: 0;
    transition: 0.5s;
}

.logo-btn .vad5m::before {
    left: 0px;
}

.logo-btn .vad5m::after {
    left: 52px;
}

.logo-btn:hover .vad5m::before,
.logo-btn:hover .vad5m::after {
    opacity: 1;
}

.logo-btn:active .vad5m::before,
.logo-btn:active .vad5m::after {
    opacity: 0;
}

.logo-btn:active {
    scale: 0.9;
    rotate: -6deg;
}

.logo-btn .dev {
    animation: weeLogo 0.5s ease;
    transition: 0.5s;
}

.logo-btn:active .dev {
    animation: none;
    rotate: -6deg;
}

@keyframes weeLogo {
    0% { rotate: -6deg; }
    25% { rotate: 16deg; }
    50% { rotate: -12deg; }
    75% { rotate: 8deg; }
    100% { rotate: 0deg; }
}

.nav {
    display: flex;
    gap: 0.8rem;
    align-items: center;
}

.ui-btn {
    --btn-default-bg: rgb(41, 41, 41);
    --btn-padding: 12px 20px;
    --btn-hover-bg: rgb(51, 51, 51);
    --btn-transition: .3s;
    --btn-letter-spacing: .1rem;
    --btn-animation-duration: 1.2s;
    --btn-shadow-color: rgba(0, 0, 0, 0.137);
    --btn-shadow: 0 2px 10px 0 var(--btn-shadow-color);
    --hover-btn-color: #FAC921;
    --default-btn-color: #fff;
    --font-size: 14px;
    --font-weight: 600;
    --font-family: 'Space Grotesk', sans-serif;
    box-sizing: border-box;
    padding: var(--btn-padding);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--default-btn-color);
    font: var(--font-weight) var(--font-size) var(--font-family);
    background: var(--btn-default-bg);
    border: none;
    cursor: pointer;
    transition: var(--btn-transition);
    overflow: hidden;
    box-shadow: var(--btn-shadow);
    border-radius: 40px;
    text-decoration: none;
}

.ui-btn span {
    letter-spacing: var(--btn-letter-spacing);
    transition: var(--btn-transition);
    box-sizing: border-box;
    position: relative;
    background: inherit;
}

.ui-btn span::before {
    box-sizing: border-box;
    position: absolute;
    content: "";
    background: inherit;
}

.ui-btn:hover, .ui-btn:focus {
    background: var(--btn-hover-bg);
}

.ui-btn:hover span, .ui-btn:focus span {
    color: var(--hover-btn-color);
}

.ui-btn:hover span::before, .ui-btn:focus span::before {
    animation: chitchat linear both var(--btn-animation-duration);
}

@keyframes chitchat {
    0% { content: "#"; }
    5% { content: "."; }
    10% { content: "^{"; }
    15% { content: "-!"; }
    20% { content: "#$_"; }
    25% { content: "№:0"; }
    30% { content: "#{+."; }
    35% { content: "@}-?"; }
    40% { content: "?{4@%"; }
    45% { content: "=.,^!"; }
    50% { content: "?2@%"; }
    55% { content: "\;1}]"; }
    60% { content: "?{ %:%"; right: 0; }
    65% { content: "|{f[4"; right: 0; }
    70% { content: "{4%0%"; right: 0; }
    75% { content: "'1_0<"; right: 0; }
    80% { content: "{0%"; right: 0; }
    85% { content: "]>'"; right: 0; }
    90% { content: "4"; right: 0; }
    95% { content: "2"; right: 0; }
    100% { content: ""; right: 0; }
}

.ui-btn.primary {
    --btn-default-bg: #f7971d;
    --btn-hover-bg: #f8a03a;
    --default-btn-color: #0a0808;
    --hover-btn-color: #0a0808;
    --btn-shadow: 0 4px 20px rgba(247, 151, 29, 0.15);
}

.ui-btn.primary:hover {
    --btn-shadow: 0 8px 30px rgba(247, 151, 29, 0.25);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    background: transparent;
    border: none;
    cursor: pointer;
    gap: 5px;
    padding: 0;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #e8ddd0;
    border-radius: 4px;
    transition: 0.25s;
}

.menu-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.menu-toggle.active span:nth-child(2) { opacity: 0; transform: scale(0); }
.menu-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.mobile-nav {
    display: none;
    flex-direction: column;
    background: rgba(10, 8, 8, 0.95);
    backdrop-filter: blur(24px);
    border-radius: 32px;
    padding: 1.5rem 1.2rem;
    margin-top: 0.5rem;
    border: 1px solid rgba(247, 151, 29, 0.05);
    margin-left: auto;
    margin-right: auto;
}

.mobile-nav a {
    padding: 0.75rem 1rem;
    text-decoration: none;
    color: rgba(200, 180, 160, 0.6);
    font-weight: 500;
    border-radius: 30px;
    transition: 0.2s;
}

.mobile-nav a:hover {
    background: rgba(247, 151, 29, 0.04);
    color: #e8ddd0;
}

.mobile-nav.open {
    display: flex;
}

.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem 3rem;
    position: relative;
    z-index: 10;
}

@media (max-width: 720px) {
    .nav {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .header {
        padding: 0.5rem 1.2rem;
    }
}

@media (max-width: 820px) {
    .main-content {
        padding: 0 1rem 3rem;
    }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

.reveal-left {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-right {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-right.visible {
    opacity: 1;
    transform: translateX(0);
}

.reveal-scale {
    opacity: 0;
    transform: scale(0.92);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-scale.visible {
    opacity: 1;
    transform: scale(1);
}

.stagger-children .feature-card {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-children.visible .feature-card:nth-child(1) { transition-delay: 0.05s; opacity: 1; transform: translateY(0); }
.stagger-children.visible .feature-card:nth-child(2) { transition-delay: 0.12s; opacity: 1; transform: translateY(0); }
.stagger-children.visible .feature-card:nth-child(3) { transition-delay: 0.19s; opacity: 1; transform: translateY(0); }
.stagger-children.visible .feature-card:nth-child(4) { transition-delay: 0.26s; opacity: 1; transform: translateY(0); }
.stagger-children.visible .feature-card:nth-child(5) { transition-delay: 0.33s; opacity: 1; transform: translateY(0); }
.stagger-children.visible .feature-card:nth-child(6) { transition-delay: 0.40s; opacity: 1; transform: translateY(0); }


.preloader-page .header-wrapper {
    opacity: 0;
    transform: translateY(-24px);
    pointer-events: none;
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.preloader-page .header-wrapper.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}