/* ===== MODERN BASE STYLES ===== */
/* Foundation styles with splash screen-inspired modern design */

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    line-height: var(--line-height-normal);
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-family-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: var(--line-height-normal);
    color: var(--editor-text);
    background: var(--editor-bg);
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-tap-highlight-color: transparent;
}

/* ===== SCROLLBARS ===== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--editor-bg-secondary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--editor-border);
    border-radius: var(--radius-full);
    transition: background var(--duration-normal) var(--ease-in-out);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--editor-border-light);
}

::-webkit-scrollbar-corner {
    background: var(--editor-bg-secondary);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--editor-border) var(--editor-bg-secondary);
}

/* ===== SELECTION ===== */
::selection {
    background: rgba(59, 130, 246, 0.3);
    color: var(--editor-text);
}

::-moz-selection {
    background: rgba(59, 130, 246, 0.3);
    color: var(--editor-text);
}

/* ===== FOCUS STYLES ===== */
:focus {
    outline: none;
}

:focus-visible {
    outline: var(--focus-ring-width) solid var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    border-radius: var(--radius-base);
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-display);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--editor-text);
    margin: 0;
}

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

p {
    margin: 0;
    line-height: var(--line-height-relaxed);
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--duration-normal) var(--ease-in-out);
}

a:hover {
    color: var(--accent-secondary);
}

a:focus-visible {
    outline: var(--focus-ring-width) solid var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    border-radius: var(--radius-base);
}

/* ===== LISTS ===== */
ul, ol {
    list-style: none;
    margin: 0;
    padding: 0;
}

li {
    margin: 0;
}

/* ===== IMAGES ===== */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

svg {
    display: block;
    max-width: 100%;
    height: auto;
}

/* ===== FORM ELEMENTS ===== */
input, textarea, select, button {
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
    background: transparent;
    border: none;
    outline: none;
    margin: 0;
    padding: 0;
}

button {
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
}

button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

/* ===== UTILITY CLASSES ===== */

/* Display */
.hidden { display: none !important; }
.block { display: block !important; }
.inline { display: inline !important; }
.inline-block { display: inline-block !important; }
.flex { display: flex !important; }
.inline-flex { display: inline-flex !important; }
.grid { display: grid !important; }

/* Flexbox */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

/* Grid */
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* Spacing */
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Text */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-justify { text-align: justify; }

.font-light { font-weight: var(--font-weight-light); }
.font-normal { font-weight: var(--font-weight-normal); }
.font-medium { font-weight: var(--font-weight-medium); }
.font-semibold { font-weight: var(--font-weight-semibold); }
.font-bold { font-weight: var(--font-weight-bold); }

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }

.text-primary { color: var(--editor-text); }
.text-secondary { color: var(--editor-text-secondary); }
.text-tertiary { color: var(--editor-text-tertiary); }
.text-muted { color: var(--editor-text-muted); }
.text-accent { color: var(--accent-primary); }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-scroll { overflow: scroll; }
.overflow-x-hidden { overflow-x: hidden; }
.overflow-y-hidden { overflow-y: hidden; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* Z-index */
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-30 { z-index: 30; }
.z-40 { z-index: 40; }
.z-50 { z-index: 50; }

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    to {
        opacity: 0;
        transform: scale(0.95);
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.3); }
    50% { box-shadow: 0 0 40px rgba(59, 130, 246, 0.6); }
}

/* Animation classes */
.animate-fade-in { animation: fadeIn var(--duration-normal) var(--ease-out); }
.animate-fade-out { animation: fadeOut var(--duration-normal) var(--ease-out); }
.animate-slide-in-up { animation: slideInUp var(--duration-normal) var(--ease-out); }
.animate-slide-in-down { animation: slideInDown var(--duration-normal) var(--ease-out); }
.animate-slide-in-left { animation: slideInLeft var(--duration-normal) var(--ease-out); }
.animate-slide-in-right { animation: slideInRight var(--duration-normal) var(--ease-out); }
.animate-scale-in { animation: scaleIn var(--duration-normal) var(--ease-out); }
.animate-scale-out { animation: scaleOut var(--duration-normal) var(--ease-out); }
.animate-pulse { animation: pulse 2s var(--ease-in-out) infinite; }
.animate-spin { animation: spin 1s linear infinite; }
.animate-bounce { animation: bounce 1s var(--ease-in-out) infinite; }
.animate-glow { animation: glow 2s var(--ease-in-out) infinite; }

/* ===== TRANSITIONS ===== */
.transition-all { transition: all var(--duration-normal) var(--ease-in-out); }
.transition-colors { transition: color var(--duration-normal) var(--ease-in-out), background-color var(--duration-normal) var(--ease-in-out), border-color var(--duration-normal) var(--ease-in-out); }
.transition-opacity { transition: opacity var(--duration-normal) var(--ease-in-out); }
.transition-transform { transition: transform var(--duration-normal) var(--ease-in-out); }
.transition-shadow { transition: box-shadow var(--duration-normal) var(--ease-in-out); }

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .sm\:block { display: block !important; }
    .sm\:hidden { display: none !important; }
    .sm\:flex { display: flex !important; }
    .sm\:grid { display: grid !important; }
    .sm\:text-sm { font-size: var(--font-size-sm); }
    .sm\:text-base { font-size: var(--font-size-base); }
    .sm\:gap-2 { gap: var(--space-2); }
    .sm\:gap-4 { gap: var(--space-4); }
}

@media (max-width: 640px) {
    .xs\:block { display: block !important; }
    .xs\:hidden { display: none !important; }
    .xs\:flex { display: flex !important; }
    .xs\:text-xs { font-size: var(--font-size-xs); }
    .xs\:text-sm { font-size: var(--font-size-sm); }
    .xs\:gap-1 { gap: var(--space-1); }
    .xs\:gap-2 { gap: var(--space-2); }
}

/* ===== ACCESSIBILITY ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.not-sr-only {
    position: static;
    width: auto;
    height: auto;
    padding: 0;
    margin: 0;
    overflow: visible;
    clip: auto;
    white-space: normal;
}

/* Focus visible for better accessibility */
.focus-visible:focus-visible {
    outline: var(--focus-ring-width) solid var(--focus-ring-color);
    outline-offset: var(--focus-ring-offset);
    border-radius: var(--radius-base);
}

/* ===== PRINT STYLES ===== */
@media print {
    * {
        background: transparent !important;
        color: black !important;
        box-shadow: none !important;
        text-shadow: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
    }
    
    .no-print {
        display: none !important;
    }
}