@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap");

:root {
    --bg: #0f1411;
    --bg-soft: #151d18;
    --panel: rgba(18, 25, 21, 0.82);
    --panel-strong: rgba(24, 34, 29, 0.96);
    --text: #f5f7ef;
    --muted: #b9c6be;
    --line: rgba(255, 255, 255, 0.1);
    --accent: #ecf39e;
    --accent-strong: #359381;
    --shadow: 0 24px 60px rgba(0, 0, 0, 0.28);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Poppins", sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    overflow-x: hidden;
    background:
        radial-gradient(circle at top, rgba(53, 147, 129, 0.18), transparent 30%),
        linear-gradient(180deg, #111713 0%, #121814 35%, #0f1411 100%);
    color: var(--text);
}

header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    padding: 18px 56px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    z-index: 1000;
    background: rgba(12, 17, 14, 0.82);
    border-bottom: 1px solid var(--line);
    backdrop-filter: blur(16px);
}

.logo,
h2.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    width: fit-content;
    padding: 10px 18px;
    border-radius: 12px;
    background: #1b3022;
    color: var(--accent);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.18);
}

.site-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #f8faf4;
    text-decoration: none;
    font-size: 1.16rem;
    font-weight: 800;
    letter-spacing: -0.045em;
    white-space: nowrap;
}

.site-brand-mark {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: var(--accent);
    color: #173f32;
    font-size: 1rem;
    letter-spacing: -0.08em;
    box-shadow: 0 9px 22px rgba(0, 0, 0, 0.2);
}

.navigation {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-button {
    color: var(--text);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 999px;
    transition: background 0.25s ease, color 0.25s ease, transform 0.25s ease;
}

.nav-button:hover,
.nav-button.active {
    background: rgba(53, 147, 129, 0.2);
    color: #fff;
}

.nav-login {
    margin-left: 4px;
    border: 1px solid var(--accent);
    color: var(--accent);
}

.nav-login:hover {
    background: var(--accent);
    color: #173f32;
}

.scroll-section,
.content-panel,
.info-section {
    scroll-margin-top: 96px;
}

.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 130px 24px 70px;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(to bottom, rgba(8, 10, 9, 0.35) 0%, rgba(8, 10, 9, 0.65) 60%, rgba(15, 20, 17, 0.95) 100%);
    z-index: 1;
}

.hero-section img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.5;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 960px;
    text-align: center;
}

#text {
    font-size: clamp(3rem, 8vw, 6rem);
    line-height: 0.92;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.03em;
    text-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.hero-subtext {
    margin: 20px auto 0;
    max-width: 760px;
    font-size: clamp(1rem, 2.2vw, 1.24rem);
    line-height: 1.8;
    color: #d7dfda;
}

.hero-btn,
.buy-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 52px;
    padding: 14px 28px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}

.hero-btn {
    background: var(--accent);
    color: #1b3022;
    box-shadow: 0 14px 30px rgba(236, 243, 158, 0.2);
}

.hero-btn:hover,
.buy-btn:hover {
    transform: translateY(-4px);
}

.info-section,
.content-panel {
    padding: 110px 24px;
}

.content-container,
.pricing-inner,
.panel-inner {
    width: min(1120px, 100%);
    margin: 0 auto;
}

.content-container h2,
.content-panel h2 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    color: var(--accent);
    margin-bottom: 18px;
}

.content-container p,
.content-panel p {
    color: var(--muted);
    line-height: 1.8;
}

.alternate-bg {
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0)),
        #111714;
}

.features-grid,
.pricing-cards {
    display: grid;
    gap: 24px;
    margin-top: 42px;
}

.features-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.feature-card,
.card,
.panel-inner,
.chat-container {
    background: var(--panel);
    border: 1px solid var(--line);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.feature-card {
    padding: 28px;
    border-radius: 24px;
    text-align: left;
    border-top: 4px solid var(--accent-strong);
    transition: transform 0.28s ease, box-shadow 0.28s ease, border-color 0.28s ease, background 0.28s ease;
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.01);
    border-color: rgba(236, 243, 158, 0.28);
    background: rgba(24, 34, 29, 0.95);
    box-shadow: 0 28px 42px rgba(0, 0, 0, 0.3);
}

.feature-card h3 {
    color: #fff;
    font-size: 1.35rem;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 0.98rem;
}

.demo-bg {
    background:
        radial-gradient(circle at top right, rgba(53, 147, 129, 0.14), transparent 30%),
        #151d18;
}

.panel-inner {
    border-radius: 30px;
    padding: 52px 34px;
}

.chat-container {
    margin-top: 30px;
    padding: 30px;
    border-radius: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.chat-message {
    max-width: 80%;
    padding: 16px 20px;
    border-radius: 18px;
    line-height: 1.6;
    text-align: left;
}

.user-message {
    align-self: flex-end;
    background: #359381;
    color: #fff;
    border-bottom-right-radius: 5px;
}

.ai-message {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.07);
    color: #e5ebe7;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-bottom-left-radius: 5px;
}

.success-message {
    background: rgba(236, 243, 158, 0.12);
    color: var(--accent);
    border: 1px solid rgba(236, 243, 158, 0.36);
}

.contracts-bg {
    background:
        radial-gradient(circle at top left, rgba(236, 243, 158, 0.08), transparent 35%),
        #0f1411;
}

.pricing-cards {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    align-items: stretch;
}

.card {
    position: relative;
    border-radius: 24px;
    padding: 34px 28px;
    text-align: left;
    transition: transform 0.28s ease, box-shadow 0.28s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 28px 42px rgba(0, 0, 0, 0.3);
}

.pro-card {
    background: var(--panel-strong);
    border: 1px solid rgba(236, 243, 158, 0.34);
}

.badge {
    position: absolute;
    top: 18px;
    right: 18px;
    background: rgba(236, 243, 158, 0.16);
    color: var(--accent);
    padding: 8px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.price {
    color: var(--accent);
    font-size: 2.7rem;
    font-weight: 800;
    margin-bottom: 22px;
}

.price span {
    color: var(--muted);
    font-size: 0.4em;
    font-weight: 500;
}

.features {
    list-style: none;
    display: grid;
    gap: 12px;
    margin-bottom: 24px;
    color: #dee7e1;
}

.features li::before {
    content: "•";
    color: var(--accent);
    margin-right: 10px;
}

.buy-btn {
    width: 100%;
    background: #fff;
    color: #1b3022;
}

.pro-btn {
    background: var(--accent);
}

.buy-btn:hover {
    box-shadow: 0 16px 30px rgba(236, 243, 158, 0.16);
}

.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.75s ease, transform 0.75s ease;
}

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

.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.18s; }
.delay-3 { transition-delay: 0.28s; }
.chat-delay-1 { transition-delay: 0.2s; }
.chat-delay-2 { transition-delay: 0.7s; }
.chat-delay-3 { transition-delay: 1.2s; }
.chat-delay-4 { transition-delay: 1.7s; }

@media (max-width: 1120px) {
    header {
        padding: 16px 20px;
    }

    .navigation {
        gap: 6px;
    }

    .nav-button {
        font-size: 0.84rem;
        padding: 8px 12px;
    }

    .navigation .nav-button:nth-child(1),
    .navigation .nav-button:nth-child(2),
    .navigation .nav-button:nth-child(4) {
        display: none;
    }

    .hero-section {
        padding-top: 150px;
    }

    .panel-inner {
        padding: 38px 22px;
    }

    .chat-message {
        max-width: 92%;
    }
}

@media (max-width: 640px) {
    header {
        flex-direction: column;
        align-items: flex-start;
    }

    .navigation {
        width: 100%;
        justify-content: flex-start;
    }

    .navigation .nav-button {
        display: inline-flex;
    }

    .navigation .nav-button:nth-child(1),
    .navigation .nav-button:nth-child(2),
    .navigation .nav-button:nth-child(4) {
        display: none;
    }

    .info-section,
    .content-panel {
        padding: 90px 18px;
    }

    .hero-btn,
    .buy-btn {
        width: 100%;
    }
}