:root {
    /* Colors */
    --primary: #0f766e;
    --primary-hover: #115e59;
    --surface: #ffffff;
    --border: #e2e8f0;
    --muted: #94a3b8;

    --background: #f8fafc;
    --text-primary: #0f172a;
    --text-secondary: #475569;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;

    /* Shadows */
    --shadow-card: 0 10px 25px rgba(0, 0, 0, 0.08);
}


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

body {
    margin: 0;
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont,
        "Segoe UI", Roboto, sans-serif;
    background-color: var(--background);
    color: var(--text-primary);
}

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

h1 {
    font-size: 32px;
    margin: 0 0 16px;
    color: var(--text-primary);
}

h2 {
    font-size: 24px;
    margin: 0 0 16px;
    color: var(--text-primary);
}

h3 {
    font-size: 18px;
    margin: 0 0 8px;
    color: var(--text-primary);
}

p {
    font-size: 15px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0 0 14px;
}

ul {
    padding-left: 18px;
}

li {
    margin-bottom: 8px;
}

/* ==================================================
   LINKS
   ================================================== */

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

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

button {
    background-color: var(--primary);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    padding: 10px 14px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.15s ease;
}

button:hover {
    background-color: var(--primary-hover);
    color: var(--surface);
}

button:active {
    transform: scale(0.97);
}

button:disabled {
    background-color: var(--muted);
    cursor: not-allowed;
}

/* ==================================================
   UTILITIES
   ================================================== */

.flex-center {
    display: flex;
    gap: 10px;
    justify-content: center;
    align-items: center;
    margin-top: 12px;
}

.text-end {
    text-align: end;
}

.me-2 {
    margin-right: .5rem;
}

.position-relative {
    position: relative;
}