/* ==========================================================
   Components — Reusable UI Elements
   ========================================================== */

/* ── Card ───────────────────────────────────────────── */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    transition: border-color var(--transition-base), transform var(--transition-base),
        background-color var(--transition-slow);
}

.card:hover {
    border-color: var(--color-text-muted);
    transform: translateY(-2px);
}

.card-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    margin-bottom: var(--spacing-4);
    color: var(--color-text-primary);
}

.card-icon svg {
    width: 24px;
    height: 24px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.card h3 {
    margin-bottom: var(--spacing-2);
}

.card p {
    font-size: var(--font-size-caption);
    color: var(--color-text-secondary);
}

/* ── Gradient Text ──────────────────────────────────── */
.gradient-text {
    background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ── Section Label ──────────────────────────────────── */
.section-label {
    font-size: var(--font-size-section-label);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: var(--letter-spacing-wide);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-8);
}

/* ── Buttons ────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    padding: var(--spacing-3) var(--spacing-6);
    font-family: var(--font-family);
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    border: none;
    line-height: 1;
}

.btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.btn-primary {
    background: var(--color-button-bg);
    color: var(--color-button-text);
}

.btn-primary:hover {
    background: var(--color-button-hover);
    color: var(--color-button-text);
}

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

.btn-secondary:hover {
    background: var(--color-button-outline-hover);
    color: var(--color-text-primary);
}

.btn-link {
    background: none;
    border: none;
    color: var(--color-text-secondary);
    padding: 0;
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-medium);
}

.btn-link:hover {
    color: var(--color-text-primary);
}

/* ── Badge / Tag ────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.65rem;
    font-size: var(--font-size-small);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    transition: background-color var(--transition-slow), border-color var(--transition-slow),
        color var(--transition-slow);
}

/* ── Avatar Initials ────────────────────────────────── */
.avatar-initials {
    width: 4rem;
    height: 4rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-accent-start), var(--color-accent-end));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: var(--font-weight-bold);
    font-size: 1rem;
    color: #ffffff;
    flex-shrink: 0;
}

/* ── Theme Toggle ───────────────────────────────────── */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.25rem;
    height: 2.25rem;
    background: none;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text-primary);
    transition: background-color var(--transition-base), border-color var(--transition-base),
        color var(--transition-slow);
}

.theme-toggle:hover {
    background: var(--color-surface);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Sun shown by default (light); Moon hidden */
.theme-toggle .icon-moon {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-sun {
    display: none;
}

[data-theme="dark"] .theme-toggle .icon-moon {
    display: block;
}

/* ── Icon Wrapper ───────────────────────────────────── */
.icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.icon svg {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* ── Divider ────────────────────────────────────────── */
.divider {
    border: none;
    border-top: 1px solid var(--color-border);
    margin: var(--spacing-8) 0;
    transition: border-color var(--transition-slow);
}