/* ================================================================
   RTG Wealth — Design System & Stylesheet
   Color Palette: Deep Navy + Warm Gold + Steel Blue accents
   ================================================================ */

:root {
    --color-bg-deep: #060d1a;
    --color-bg-primary: #0a1526;
    --color-bg-secondary: #0f1d33;
    --color-bg-elevated: #142240;
    --color-bg-card: #0d1930;
    --color-bg-input: #0a1526;
    --color-border: rgba(73, 140, 213, 0.18);
    --color-border-active: rgba(73, 140, 213, 0.45);
    --color-accent: #c9963c;
    --color-accent-bright: #e2af4a;
    --color-accent-glow: rgba(201, 150, 60, 0.25);
    --color-steel: #5b8abf;
    --color-steel-bright: #7aabdb;
    --color-text-primary: #e8edf4;
    --color-text-secondary: #a0b4cc;
    --color-text-muted: #5e7088;
    --color-text-accent: #f0d68a;
    --color-success: #3cb878;
    --color-warning: #e2af4a;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --max-width: 1200px;
    --header-height: 72px;
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition-fast: 180ms ease;
    --transition-smooth: 320ms cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.4), 0 8px 32px rgba(0, 0, 0, 0.25);
    --shadow-elevated: 0 4px 12px rgba(0, 0, 0, 0.5), 0 16px 48px rgba(0, 0, 0, 0.3);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-deep);
    color: var(--color-text-primary);
    line-height: 1.7;
    overflow-x: hidden;
}

::selection {
    background: var(--color-accent);
    color: var(--color-bg-deep);
}

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 28px;
}

/* ---- Header ---- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    z-index: 1000;
    background: rgba(6, 13, 26, 0.82);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--color-border);
    transition: background var(--transition-smooth), box-shadow var(--transition-smooth);
}

.site-header.scrolled {
    background: rgba(6, 13, 26, 0.95);
    box-shadow: 0 1px 0 var(--color-border), 0 8px 32px rgba(0, 0, 0, 0.35);
}

.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.02em;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: var(--radius-sm);
    background: linear-gradient(135deg, var(--color-accent) 0%, #b8842e 100%);
    color: var(--color-bg-deep);
    font-size: 1.1rem;
}

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 4px;
}

.main-nav a {
    display: inline-block;
    padding: 8px 16px;
    text-decoration: none;
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.main-nav a:hover,
.main-nav a:focus-visible {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: 2px;
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

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

.nav-toggle.active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ---- Hero ---- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: calc(var(--header-height) + 40px) 0 80px;
    overflow: hidden;
    background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(201, 150, 60, 0.07) 0%, transparent 60%),
                radial-gradient(ellipse 50% 50% at 80% 80%, rgba(91, 138, 191, 0.06) 0%, transparent 60%),
                var(--color-bg-deep);
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.hero-particles .particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--color-accent);
    border-radius: 50%;
    opacity: 0;
    animation: floatParticle 6s ease-in-out infinite;
}

@keyframes floatParticle {
    0% { opacity: 0; transform: translateY(0) scale(0); }
    20% { opacity: 0.6; }
    50% { opacity: 0.2; }
    80% { opacity: 0.5; }
    100% { opacity: 0; transform: translateY(-100vh) scale(1.5); }
}

.hero-badge {
    display: inline-block;
    padding: 6px 18px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-accent-bright);
    background: rgba(201, 150, 60, 0.1);
    border: 1px solid rgba(201, 150, 60, 0.25);
    border-radius: 50px;
    margin-bottom: 28px;
}

.hero-title {
    font-size: clamp(2.4rem, 6vw, 4.2rem);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.03em;
    color: var(--color-text-primary);
    max-width: 800px;
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    max-width: 640px;
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all var(--transition-smooth);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-accent) 0%, #b8842e 100%);
    color: var(--color-bg-deep);
    box-shadow: 0 4px 20px var(--color-accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 28px var(--color-accent-glow), 0 2px 8px rgba(0, 0, 0, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-border-active);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--color-steel);
}

.btn-full {
    width: 100%;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    max-width: 720px;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-accent-bright);
    letter-spacing: -0.02em;
    line-height: 1;
}

.stat-unit {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-accent);
}

.stat-label {
    display: block;
    margin-top: 6px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

/* ---- Section Header ---- */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--color-steel-bright);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.05rem;
    color: var(--color-text-secondary);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.65;
}

/* ---- Solutions ---- */
.solutions {
    padding: 100px 0;
    background: var(--color-bg-primary);
}

.solutions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.solution-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px 28px;
    transition: border-color var(--transition-smooth), transform var(--transition-smooth), box-shadow var(--transition-smooth);
}

.solution-card:hover {
    border-color: var(--color-border-active);
    transform: translateY(-4px);
    box-shadow: var(--shadow-elevated);
}

.card-icon {
    color: var(--color-accent);
    margin-bottom: 20px;
}

.solution-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 12px;
    letter-spacing: -0.01em;
}

.solution-card > p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: 18px;
}

.card-features {
    list-style: none;
    border-top: 1px solid var(--color-border);
    padding-top: 16px;
}

.card-features li {
    font-size: 0.85rem;
    color: var(--color-steel-bright);
    padding: 4px 0;
    position: relative;
    padding-left: 18px;
}

.card-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 11px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-accent);
}

/* ---- Expertise ---- */
.expertise {
    padding: 100px 0;
    background: var(--color-bg-deep);
}

.expertise-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 56px;
}

.expertise-verticals h3,
.expertise-tech h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 28px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-accent);
    display: inline-block;
}

.vertical-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.vertical-item {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.vertical-marker {
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-accent);
    margin-top: 8px;
    box-shadow: 0 0 10px var(--color-accent-glow);
}

.vertical-item h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.vertical-item p {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.tech-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.tech-pillar {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 24px 20px;
    transition: border-color var(--transition-smooth);
}

.tech-pillar:hover {
    border-color: var(--color-accent);
}

.pillar-number {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.1em;
}

.tech-pillar h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-top: 8px;
    margin-bottom: 8px;
}

.tech-pillar p {
    font-size: 0.84rem;
    color: var(--color-text-secondary);
    line-height: 1.55;
}

/* ---- Approach ---- */
.approach {
    padding: 100px 0;
    background: var(--color-bg-primary);
}

.approach-timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.approach-timeline::before {
    content: '';
    position: absolute;
    left: 29px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-accent), var(--color-steel), var(--color-accent));
    border-radius: 1px;
}

.timeline-step {
    display: flex;
    gap: 32px;
    padding: 8px 0 40px;
    position: relative;
}

.timeline-step:last-child {
    padding-bottom: 0;
}

.step-marker {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-bg-elevated);
    border: 2px solid var(--color-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-accent-bright);
    z-index: 1;
    box-shadow: 0 0 20px var(--color-accent-glow), inset 0 0 0 2px var(--color-bg-elevated);
}

.step-content {
    padding-top: 14px;
}

.step-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
}

.step-content p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.65;
}

/* ---- Contact ---- */
.contact {
    padding: 100px 0;
    background: var(--color-bg-deep);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 48px;
    align-items: flex-start;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    gap: 16px;
    align-items: flex-start;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 22px 24px;
    transition: border-color var(--transition-smooth);
}

.contact-card:hover {
    border-color: var(--color-border-active);
}

.contact-icon-wrap {
    flex-shrink: 0;
    color: var(--color-accent);
    margin-top: 2px;
}

.contact-label {
    display: block;
    font-size: 0.78rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.contact-value {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
    line-height: 1.5;
}

a.contact-value:hover {
    color: var(--color-accent-bright);
}

.contact-value.address {
    font-weight: 400;
    color: var(--color-text-secondary);
}

.contact-form {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 36px 32px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-bottom: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group.full-width {
    grid-column: 1 / -1;
    margin-bottom: 16px;
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea,
.form-group select {
    padding: 12px 16px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    color: var(--color-text-primary);
    background: var(--color-bg-input);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
    appearance: none;
}

.form-group select {
    background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%23a0b4cc' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 44px;
    cursor: pointer;
}

.form-group select option {
    background: var(--color-bg-elevated);
    color: var(--color-text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--color-text-muted);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-note {
    text-align: center;
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 16px;
}

/* ---- Footer ---- */
.site-footer {
    background: var(--color-bg-secondary);
    border-top: 1px solid var(--color-border);
    padding: 64px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 48px;
}

.footer-logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: block;
    margin-bottom: 12px;
}

.footer-tagline {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    max-width: 300px;
}

.footer-nav h4 {
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.footer-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-nav a {
    font-size: 0.88rem;
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--color-accent-bright);
}

.footer-nav li {
    font-size: 0.86rem;
    color: var(--color-text-secondary);
    line-height: 1.5;
}

.footer-bottom {
    border-top: 1px solid var(--color-border);
    padding-top: 24px;
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
    .solutions-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .expertise-layout {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    .contact-layout {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }
    .main-nav {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: rgba(10, 21, 38, 0.97);
        backdrop-filter: blur(18px);
        border-bottom: 1px solid var(--color-border);
        padding: 20px 28px;
        transform: translateY(-120%);
        opacity: 0;
        transition: transform var(--transition-smooth), opacity var(--transition-smooth);
    }
    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
    }
    .main-nav ul {
        flex-direction: column;
        gap: 0;
    }
    .main-nav a {
        display: block;
        padding: 14px 16px;
        font-size: 1rem;
        border-radius: var(--radius-sm);
    }
    .nav-toggle {
        display: flex;
    }
    .hero-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    .solutions-grid {
        grid-template-columns: 1fr;
    }
    .tech-grid {
        grid-template-columns: 1fr;
    }
    .form-row {
        grid-template-columns: 1fr;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .hero-cta {
        flex-direction: column;
    }
    .btn {
        width: 100%;
        text-align: center;
    }
    .approach-timeline::before {
        left: 24px;
    }
    .step-marker {
        width: 48px;
        height: 48px;
        font-size: 1rem;
    }
    .timeline-step {
        gap: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 18px;
    }
    .hero-title {
        font-size: 2rem;
    }
    .section-header h2 {
        font-size: 1.6rem;
    }
    .contact-form {
        padding: 24px 20px;
    }
}