:root {
    /* Premium Obsidian & Teal Palette (Synced with Main Website) */
    --bg-obsidian: #0f172a;
    /* Matched to main website slate-900 */
    --bg-card: hsla(222, 47%, 11%, 0.7);
    --bg-card-hover: hsla(222, 47%, 15%, 0.8);

    --accent-teal: #2dd4bf;
    /* Teal-400 */
    --accent-teal-glow: rgba(45, 212, 191, 0.4);
    --accent-cyan: #0ea5e9;
    /* Sky-500 for secondary accents */
    --accent-cyan-glow: rgba(14, 165, 233, 0.4);

    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-accent: #2dd4bf;

    --brand-gradient: linear-gradient(135deg, #2dd4bf 0%, #14b8a6 100%);
    --surface-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 100%);

    --radius-lg: 16px;
    --radius-md: 12px;
    --transition-smooth: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    --glass-border: 1px solid rgba(255, 255, 255, 0.08);

    --container-max: 900px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-obsidian);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

h1,
h2,
h3,
h4,
.brand-name,
.step-label {
    font-family: 'Outfit', sans-serif;
    letter-spacing: -0.02em;
}

/* Background Mesh */
.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.mesh-glow {
    position: absolute;
    width: 150%;
    height: 150%;
    top: -25%;
    left: -25%;
    background-image:
        radial-gradient(at 10% 10%, hsla(220, 100%, 15%, 0.2) 0, transparent 50%),
        radial-gradient(at 90% 10%, hsla(170, 100%, 10%, 0.1) 0, transparent 50%),
        radial-gradient(at 50% 90%, hsla(200, 100%, 10%, 0.1) 0, transparent 50%);
    filter: blur(100px);
    animation: meshFlow 20s ease-in-out infinite alternate;
}

@keyframes meshFlow {
    from {
        transform: rotate(0deg) scale(1);
    }

    to {
        transform: rotate(5deg) scale(1.1);
    }
}

/* Layout */
.app-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    margin-bottom: 2rem;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--brand-gradient);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: #000;
}

.brand-name {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Progress Sidebar/Nav */
.portal-nav {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 3rem;
    overflow-x: auto;
    padding-bottom: 1rem;
    scrollbar-width: none;
}

.portal-nav::-webkit-scrollbar {
    display: none;
}

.nav-step {
    flex: 1;
    min-width: 120px;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: var(--glass-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.nav-step.active {
    background: rgba(45, 212, 191, 0.1);
    border-color: var(--accent-teal);
}

.nav-step.completed {
    border-color: var(--accent-cyan);
}

.step-number {
    font-size: 0.7rem;
    font-weight: 800;
    color: var(--accent-teal);
    text-transform: uppercase;
}

.step-label {
    font-size: 0.9rem;
    font-weight: 600;
}

/* Main Content Area */
.main-stage {
    flex: 1;
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stage-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 3rem;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.stage-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(180deg, #FFFFFF 0%, #CBD5E1 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stage-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

/* UI Elements */
.btn {
    padding: 1rem 2rem;
    border-radius: var(--radius-md);
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--brand-gradient);
    color: #000;
    box-shadow: 0 10px 20px rgba(45, 212, 191, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(45, 212, 191, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Form Elements */
.input-group {
    margin-bottom: 2rem;
}

.label {
    display: block;
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--accent-teal);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.75rem;
}

.input {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: var(--glass-border);
    border-radius: var(--radius-md);
    color: #fff;
    font-family: inherit;
    transition: var(--transition-smooth);
}

.input:focus {
    outline: none;
    border-color: var(--accent-teal);
    background: rgba(255, 255, 255, 0.06);
}

/* Day Specific Displays (Mockup Classes) */
.load-inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.inventory-card {
    background: rgba(255, 255, 255, 0.02);
    border: var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.inventory-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--accent-teal);
}

/* Utilities */
.text-teal {
    color: var(--accent-teal);
}

.mt-4 {
    margin-top: 1rem;
}

.mb-4 {
    margin-bottom: 1rem;
}

/* Gating / Landing Page Styles */
.landing-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    align-items: center;
}

@media (max-width: 768px) {
    .landing-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.feature-tag {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.75rem 1rem;
    border-radius: 12px;
    border: var(--glass-border);
    font-size: 0.9rem;
}

.gate-card {
    background: var(--bg-card);
    border: var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.hidden {
    display: none !important;
}

/* Feature Deep-Dives */
.feature-section-header {
    text-align: center;
    margin: 4rem 0 3rem;
    padding-top: 4rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.impact-card {
    background: rgba(255, 255, 255, 0.02);
    border: var(--glass-border);
    border-radius: var(--radius-md);
    padding: 2rem;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.impact-card:hover {
    background: rgba(45, 212, 191, 0.05);
    border-color: var(--accent-teal);
    transform: translateY(-5px);
}

.impact-icon {
    width: 48px;
    height: 48px;
    background: rgba(45, 212, 191, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent-teal);
}

.impact-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-main);
}

.impact-desc {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.5;
}

.benefit-list {
    list-style: none;
    margin-top: 1rem;
}

.benefit-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.benefit-item::before {
    content: "→";
    color: var(--accent-teal);
    font-weight: 800;
}

/* Blueprint Section */
.blueprint-path {
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-lg);
    padding: 3rem;
    margin: 4rem 0;
    border: 1px dashed rgba(45, 212, 191, 0.2);
}

.blueprint-steps {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
    position: relative;
}

@media (max-width: 768px) {
    .blueprint-steps {
        grid-template-columns: 1fr;
    }
}

.blueprint-step {
    text-align: center;
    position: relative;
}

.step-circle {
    width: 40px;
    height: 40px;
    background: var(--bg-obsidian);
    border: 2px solid var(--accent-teal);
    color: var(--accent-teal);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-weight: 800;
    font-size: 0.8rem;
}