html {
    font-family: var(--font-family-base), serif;
    font-size: 16px;
    line-height: var(--line-height-normal);
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
}

body {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

main {
    flex: 1;
}

/* ============================================
   CONTAINER
   ============================================ */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin-inline: auto;
    padding-inline: var(--container-padding);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
}

strong, b {
    font-weight: var(--font-weight-semibold);
}

/* ============================================
   LINKS
   ============================================ */
a {
    transition: color var(--transition-fast) var(--ease-out);
}

/* ============================================
   SELECTION
   ============================================ */
::selection {
    background-color: var(--color-primary-200);
    color: var(--color-primary-900);
}

/* ============================================
   SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--color-gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--color-gray-400);
    border-radius: var(--radius-full);
    border: 2px solid var(--color-gray-100);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-gray-500);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--color-gray-400) var(--color-gray-100);
}

/* ============================================
   SKIP LINK (Accessibilité)
   ============================================ */
.skip-link {
    position: absolute;
    top: -100%;
    left: var(--container-padding);
    z-index: calc(var(--z-fixed) + 1);
    padding: var(--space-3) var(--space-4);
    background: var(--color-primary-600);
    color: var(--color-text-inverse);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-md);
    transition: top var(--transition-fast) var(--ease-out);
}

.skip-link:focus {
    top: var(--space-4);
}

/* ============================================
   FLASH MESSAGES
   ============================================ */
.flash-container {
    position: fixed;
    top: calc(var(--header-height) + var(--space-4));
    right: var(--container-padding);
    z-index: var(--z-tooltip);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-width: 400px;
    width: calc(100% - var(--container-padding) * 2);
}

.flash {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-bg-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid;
    animation: flash-in var(--transition-slow) var(--ease-out);
}

@keyframes flash-in {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.flash-success {
    border-color: var(--color-success-500);
    background: var(--color-success-50);
}

.flash-success .flash-icon {
    color: var(--color-success-500);
}

.flash-error,
.flash-danger {
    border-color: var(--color-error-500);
    background: var(--color-error-50);
}

.flash-error .flash-icon,
.flash-danger .flash-icon {
    color: var(--color-error-500);
}

.flash-warning {
    border-color: var(--color-warning-500);
    background: var(--color-warning-50);
}

.flash-warning .flash-icon {
    color: var(--color-warning-500);
}

.flash-icon {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.flash-message {
    flex: 1;
    font-size: var(--font-size-sm);
    color: var(--color-text-primary);
    line-height: var(--line-height-snug);
}

.flash-close {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    color: var(--color-text-muted);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast) var(--ease-out);
}

.flash-close:hover {
    background: rgb(0 0 0 / 0.05);
    color: var(--color-text-primary);
}

.flash-close svg {
    width: 16px;
    height: 16px;
}