:root {
    --bg-deep: #04130b;
    --text-primary: #f0fdf4;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --gold-primary: #f59e0b;
    --gold-hover: #d97706;
    --gold-glow: rgba(245, 158, 11, 0.35);

    --card-bg: rgba(15, 23, 42, 0.55);
    --card-border: rgba(255, 255, 255, 0.08);
    --card-glow: rgba(245, 158, 11, 0.05);

    --font-serif: "Playfair Display", Georgia, serif;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    --t-fast: 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    --t-medium: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background-color: var(--bg-deep);
    color: var(--text-primary);
    font-family: var(--font-sans);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.page-wrapper {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.hero-haze {
    position: fixed;
    inset: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at 50% 50%,
        rgba(16, 185, 129, 0.12) 0%,
        rgba(245, 158, 11, 0.06) 35%,
        transparent 70%
    );
    pointer-events: none;
    z-index: 1;
    animation: hazeSweep 12s ease-in-out infinite alternate;
}

@keyframes hazeSweep {
    0% { transform: translate(-10%, 10%) scale(0.95); }
    100% { transform: translate(10%, -10%) scale(1.05); }
}

.brief-form {
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 100;
}

.brief-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 3.25rem;
    height: 3.25rem;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--gold-primary);
    backdrop-filter: blur(12px);
    cursor: pointer;
    transition: all var(--t-fast);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.brief-btn:hover {
    background: rgba(245, 158, 11, 0.15);
    border-color: var(--gold-primary);
    transform: translateY(-2px);
    box-shadow: 0 0 25px var(--gold-glow);
}

.brief-icon {
    width: 1.35rem;
    height: 1.35rem;
}

.brief-tooltip {
    position: absolute;
    right: 110%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-primary);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-fast);
}

.brief-form:hover .brief-tooltip {
    opacity: 1;
}

.brief-page {
    flex: 1;
    max-width: 860px;
    margin: 0 auto;
    padding: 4rem 1.5rem 5rem;
    width: 100%;
}

.brief-intro {
    text-align: center;
    margin-bottom: 3.5rem;
    animation: fadeUp 0.8s ease-out forwards;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: clamp(2.5rem, 6vw, 4.25rem);
    font-weight: 700;
    margin: 0 0 0.75rem;
    background: linear-gradient(135deg, #ffffff 30%, #a7f3d0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-tagline {
    font-size: clamp(1.05rem, 2vw, 1.25rem);
    color: var(--text-secondary);
    margin: 0;
}

.brief-flow {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.brief-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    animation: fadeUp 0.8s ease-out forwards;
}

.row-left {
    justify-content: flex-start;
}

.row-right {
    justify-content: flex-end;
}

.brief-card {
    position: relative;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 18px;
    backdrop-filter: blur(16px);
    padding: 1.75rem 2rem;
    width: min(460px, 100%);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: all var(--t-medium);
}

.brief-card:hover {
    border-color: rgba(245, 158, 11, 0.4);
    box-shadow: 0 0 30px var(--card-glow);
    transform: translateY(-3px);
}

.step-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    color: var(--gold-primary);
    margin-bottom: 0.5rem;
}

.brief-card h3 {
    margin: 0 0 0.6rem;
    font-family: var(--font-serif);
    font-size: 1.25rem;
    color: #ffffff;
}

.brief-card p {
    margin: 0;
    line-height: 1.6;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.brief-arrow {
    width: 90px;
    height: 75px;
    flex-shrink: 0;
    opacity: 0.85;
}

.arrow-left {
    order: -1;
}

/* Solution Hero Card */
.solution-card {
    width: 100%;
    margin-top: 2rem;
    text-align: center;
    padding: 2.5rem 2rem;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.75), rgba(4, 19, 11, 0.85));
    border: 1px solid rgba(245, 158, 11, 0.4);
    box-shadow: 0 0 40px var(--card-glow);
}

.solution-tag {
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.15em;
    color: var(--gold-primary);
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.5rem;
}

.solution-name {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 5vw, 3rem);
    margin: 0 0 1rem;
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.solution-card p {
    font-size: 1.05rem;
    max-width: 620px;
    margin: 0 auto;
    color: var(--text-primary);
}

.brief-back {
    display: flex;
    justify-content: center;
    margin-top: 3.5rem;
}

.brief-back a {
    text-decoration: none;
}

.action-btn {
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-hover));
    color: #000000;
    border: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
    letter-spacing: 0.08em;
    padding: 1rem 2.5rem;
    cursor: pointer;
    transition: all var(--t-fast);
    box-shadow: 0 0 25px var(--gold-glow);
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 35px var(--gold-glow);
    filter: brightness(1.1);
}

footer {
    text-align: center;
    padding: 2rem 1rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    border-top: 1px solid var(--card-border);
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .brief-row {
        flex-direction: column;
    }

    .row-right {
        flex-direction: column-reverse;
    }

    .brief-arrow {
        transform: rotate(90deg);
        width: 60px;
        height: 50px;
        margin: 0.5rem 0;
    }

    .brief-card {
        width: 100%;
    }
}