:root {
    /*
     * =====================================================
     * FASTER FINANCIAL INTELLIGENCE
     * Global Design Tokens
     * =====================================================
     */

    /* Faster Brand */
    --brand-primary: #1E3160;
    --brand-primary-dark: #152347;
    --brand-primary-soft: #EEF1F7;

    --brand-accent: #FF4F00;
    --brand-accent-dark: #D94300;
    --brand-accent-soft: #FFF0E9;

    --brand-silver: #C1CCD1;

    /* Neutral */
    --color-black: #111827;
    --color-white: #FFFFFF;

    --color-bg: #F5F7FA;
    --color-surface: #FFFFFF;
    --color-surface-soft: #F0F3F7;

    --color-text: #1E2533;
    --color-text-secondary: #5C6575;
    --color-text-muted: #8992A3;

    --color-border: #DCE1E8;
    --color-border-strong: #C6CDD7;

    /* Semantic */
    --color-success: #247A4D;
    --color-success-bg: #EAF5EF;

    --color-warning: #A66A12;
    --color-warning-bg: #FFF4DF;

    --color-danger: #B63D3D;
    --color-danger-bg: #FCECEC;

    --color-info: #1E5F9A;
    --color-info-bg: #EAF2F9;

    /* Typography */
    --font-family:
        Inter,
        "Helvetica Neue",
        Arial,
        sans-serif;

    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.75rem;

    --font-weight-regular: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    --line-height-tight: 1.15;
    --line-height-base: 1.5;
    --line-height-relaxed: 1.7;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 22px;
    --radius-pill: 999px;

    /* Shadows */
    --shadow-sm:
        0 1px 2px rgba(0, 0, 0, 0.05);

    --shadow-md:
        0 8px 24px rgba(0, 0, 0, 0.07);

    --shadow-lg:
        0 18px 50px rgba(0, 0, 0, 0.10);

    /* Layout */
    --container-width: 1440px;
    --page-padding: 32px;

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 220ms ease;

    /* Control sizes */
    --control-height: 44px;
}


/*
 * =====================================================
 * RESET
 * =====================================================
 */

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

html {
    min-height: 100%;
    -webkit-text-size-adjust: 100%;
}

body {
    min-height: 100vh;
    margin: 0;

    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);

    color: var(--color-text);
    background: var(--color-bg);

    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img,
svg {
    display: block;
    max-width: 100%;
}

button,
input,
select,
textarea {
    font: inherit;
}

button {
    cursor: pointer;
}

a {
    color: inherit;
    text-decoration: none;
}


/*
 * =====================================================
 * TYPOGRAPHY
 * =====================================================
 */

h1,
h2,
h3,
h4,
h5,
h6,
p {
    margin-top: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-text);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-tight);
}

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

p {
    margin-bottom: var(--space-4);
}


/*
 * =====================================================
 * GLOBAL FORM CONTROLS
 * =====================================================
 */

input,
select,
textarea {
    width: 100%;

    color: var(--color-text);
    background: var(--color-white);

    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);

    outline: none;

    transition:
        border-color var(--transition-fast),
        box-shadow var(--transition-fast);
}

input,
select {
    min-height: var(--control-height);
    padding: 0 var(--space-4);
}

textarea {
    min-height: 120px;
    padding: var(--space-4);
    resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
    border-color: var(--brand-primary);

    box-shadow:
        0 0 0 3px rgba(30, 49, 96, 0.14);
}

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


/*
 * =====================================================
 * GLOBAL BUTTONS
 * =====================================================
 */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);

    min-height: var(--control-height);
    padding: 0 var(--space-5);

    border: 1px solid transparent;
    border-radius: var(--radius-md);

    font-weight: var(--font-weight-semibold);
    line-height: 1;

    transition:
        background var(--transition-fast),
        border-color var(--transition-fast),
        color var(--transition-fast),
        transform var(--transition-fast);
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    color: var(--color-white);
    background: var(--brand-primary);
}

.btn-primary:hover {
    background: var(--brand-primary-dark);
}

.btn-secondary {
    color: var(--color-text);
    background: var(--color-white);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-surface-soft);
    border-color: var(--color-border-strong);
}


/*
 * =====================================================
 * GLOBAL SURFACES
 * =====================================================
 */

.surface {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}


/*
 * =====================================================
 * GLOBAL STATUS UTILITIES
 * =====================================================
 */

.text-muted {
    color: var(--color-text-muted);
}

.text-success {
    color: var(--color-success);
}

.text-warning {
    color: var(--color-warning);
}

.text-danger {
    color: var(--color-danger);
}

.text-info {
    color: var(--color-info);
}


/*
 * =====================================================
 * ACCESSIBILITY
 * =====================================================
 */

:focus-visible {
    outline: 3px solid rgba(30, 49, 96, 0.25);
    outline-offset: 2px;
}

::selection {
    color: var(--color-white);
    background: var(--brand-primary);
}


/*
 * =====================================================
 * RESPONSIVE GLOBAL VARIABLES
 * =====================================================
 */

@media (max-width: 1024px) {
    :root {
        --page-padding: 24px;
    }
}

@media (max-width: 640px) {
    :root {
        --page-padding: 16px;

        --font-size-3xl: 1.75rem;
        --font-size-4xl: 2.15rem;
    }
}