/* ==========================================================================
   RomArabix - Custom Styles
   Brutalism Design with Custom Color Palette
   ========================================================================== */

/* CSS Custom Properties */
:root {
    /* Color Palette */
    --color-primary: #05386B;
    --color-secondary: #379683;
    --color-accent: #5CDB95;
    --color-light-accent: #8EE4AF;
    --color-background: #EDF5E1;
    
    /* Additional Colors */
    --color-white: #FFFFFF;
    --color-black: #000000;
    --color-error: #DC3545;
    --color-success: #28A745;
    --color-warning: #FFC107;
    --color-info: #17A2B8;
    
    /* Typography */
    --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-weight-normal: 400;
    --font-weight-bold: 700;
    --font-weight-black: 900;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(5, 56, 107, 0.1);
    --shadow-md: 0 4px 8px rgba(5, 56, 107, 0.15);
    --shadow-lg: 0 8px 16px rgba(5, 56, 107, 0.2);
    --shadow-brutal: 8px 8px 0px var(--color-primary);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==========================================================================
   Base Styles
   ========================================================================== */

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-background);
    color: var(--color-primary);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-black);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-md);
}

/* ==========================================================================
   Header Styles
   ========================================================================== */

.header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 10px,
        rgba(255, 255, 255, 0.05) 10px,
        rgba(255, 255, 255, 0.05) 20px
    );
    pointer-events: none;
}

.header__title {
    font-size: 3rem;
    font-weight: var(--font-weight-black);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    z-index: 1;
}

.header__icon {
    display: inline-block;
    margin-right: var(--spacing-sm);
    font-size: 2.5rem;
    animation: bounce 2s infinite;
}

.header__subtitle {
    font-size: 1.2rem;
    font-weight: var(--font-weight-normal);
    opacity: 0.9;
    margin-bottom: 0;
    position: relative;
    z-index: 1;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ==========================================================================
   Main Content
   ========================================================================== */

.main {
    flex: 1;
    padding: var(--spacing-xxl) 0;
}

/* ==========================================================================
   Converter Card Styles (Brutalism)
   ========================================================================== */

.converter-card {
    background-color: var(--color-white);
    border: 4px solid var(--color-primary);
    border-radius: 0;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-brutal);
    transition: var(--transition-normal);
    position: relative;
}

.converter-card:hover {
    transform: translate(-2px, -2px);
    box-shadow: 12px 12px 0px var(--color-primary);
}

.converter-card__header {
    background-color: var(--color-accent);
    border-bottom: 4px solid var(--color-primary);
    padding: var(--spacing-lg);
    position: relative;
}

.converter-card__header::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 0;
    border-left: 20px solid var(--color-primary);
    border-bottom: 20px solid transparent;
}

.converter-card__title {
    margin: 0;
    font-size: 1.5rem;
    font-weight: var(--font-weight-black);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.converter-card__body {
    padding: var(--spacing-xl);
}

/* ==========================================================================
   Conversion Toggle Styles
   ========================================================================== */

.conversion-toggle {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.conversion-toggle__input {
    width: 20px;
    height: 20px;
    border: 3px solid var(--color-primary);
    background-color: var(--color-white);
}

.conversion-toggle__input:checked {
    background-color: var(--color-secondary);
    border-color: var(--color-primary);
}

.conversion-toggle__label {
    font-weight: var(--font-weight-bold);
    font-size: 1.1rem;
    color: var(--color-primary);
    cursor: pointer;
    user-select: none;
    transition: var(--transition-fast);
}

.conversion-toggle__label:hover {
    color: var(--color-secondary);
}

/* ==========================================================================
   Input Field Styles
   ========================================================================== */

.input-field {
    border: 4px solid var(--color-primary);
    border-radius: 0;
    padding: var(--spacing-lg);
    font-size: 1.2rem;
    font-weight: var(--font-weight-bold);
    background-color: var(--color-white);
    color: var(--color-primary);
    transition: var(--transition-fast);
}

.input-field:focus {
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 4px rgba(55, 150, 131, 0.2);
    background-color: var(--color-background);
    outline: none;
}

.input-field::placeholder {
    color: rgba(5, 56, 107, 0.5);
    font-weight: var(--font-weight-normal);
}

/* ==========================================================================
   Convert Button Styles
   ========================================================================== */

.convert-btn {
    background-color: var(--color-secondary);
    border: 4px solid var(--color-primary);
    border-radius: 0;
    color: var(--color-white);
    font-weight: var(--font-weight-black);
    font-size: 1.1rem;
    padding: var(--spacing-lg) var(--spacing-xl);
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.convert-btn:hover,
.convert-btn:focus {
    background-color: var(--color-primary);
    border-color: var(--color-secondary);
    color: var(--color-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(5, 56, 107, 0.3);
}

.convert-btn:active {
    transform: translateY(0);
    box-shadow: none;
}

.convert-btn__text {
    margin-right: var(--spacing-sm);
}

.convert-btn__icon {
    display: inline-block;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

/* ==========================================================================
   Result Display Styles
   ========================================================================== */

.result-card {
    animation: slideInUp 0.5s ease;
}

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

.result-display {
    text-align: center;
    position: relative;
}

.result-display__content {
    background-color: var(--color-light-accent);
    border: 4px solid var(--color-primary);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    font-size: 2rem;
    font-weight: var(--font-weight-black);
    color: var(--color-primary);
    word-break: break-all;
    position: relative;
}

.result-display__content::before {
    content: '✨';
    position: absolute;
    top: -10px;
    left: -10px;
    font-size: 1.5rem;
    background-color: var(--color-accent);
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--color-primary);
}

.copy-btn {
    border: 3px solid var(--color-primary);
    border-radius: 0;
    background-color: var(--color-white);
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
    transition: var(--transition-fast);
}

.copy-btn:hover,
.copy-btn:focus {
    background-color: var(--color-accent);
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* ==========================================================================
   Error Alert Styles
   ========================================================================== */

.error-alert {
    border: 4px solid var(--color-error);
    border-radius: 0;
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--color-error);
    font-weight: var(--font-weight-bold);
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.error-alert__content {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* ==========================================================================
   Info Card Styles
   ========================================================================== */

.info-card .converter-card__header {
    background-color: var(--color-light-accent);
}

.info-grid {
    display: grid;
    gap: var(--spacing-lg);
    grid-template-columns: 1fr;
}

.info-item__title {
    font-size: 1.1rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-sm);
}

.info-item__content {
    font-size: 1rem;
    margin-bottom: 0;
    color: var(--color-primary);
}

/* ==========================================================================
   Footer Styles
   ========================================================================== */

.footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
    border-top: 4px solid var(--color-secondary);
}

.footer__text {
    margin: 0;
    font-size: 0.9rem;
}

.footer__link {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: var(--font-weight-bold);
    transition: var(--transition-fast);
}

.footer__link:hover,
.footer__link:focus {
    color: var(--color-light-accent);
    text-decoration: underline;
}

/* ==========================================================================
   Responsive Design
   ========================================================================== */

/* Tablet Styles */
@media (min-width: 768px) {
    .header__title {
        font-size: 4rem;
    }
    
    .conversion-toggle {
        justify-content: center;
    }
    
    .info-grid {
        grid-template-columns: 1fr 1fr;
    }
}

/* Desktop Styles */
@media (min-width: 992px) {
    .header__title {
        font-size: 4.5rem;
    }
    
    .converter-card {
        box-shadow: var(--shadow-brutal);
    }
    
    .converter-card:hover {
        transform: translate(-4px, -4px);
        box-shadow: 16px 16px 0px var(--color-primary);
    }
}

/* Large Desktop Styles */
@media (min-width: 1200px) {
    .main {
        padding: var(--spacing-xxl) 0 4rem 0;
    }
}

/* Mobile-First Responsive Adjustments */
@media (max-width: 576px) {
    .header__title {
        font-size: 2rem;
    }
    
    .header__subtitle {
        font-size: 1rem;
    }
    
    .converter-card__body {
        padding: var(--spacing-lg);
    }
    
    .conversion-toggle {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .result-display__content {
        font-size: 1.5rem;
        padding: var(--spacing-lg);
    }
    
    .convert-btn {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 1rem;
    }
}

/* ==========================================================================
   Accessibility Improvements
   ========================================================================== */

/* Focus styles for better accessibility */
button:focus,
input:focus,
a:focus {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #000000;
        --color-secondary: #000000;
        --color-accent: #FFFFFF;
        --color-background: #FFFFFF;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .header,
    .footer,
    .convert-btn,
    .copy-btn {
        display: none;
    }
    
    .converter-card {
        box-shadow: none;
        border: 2px solid #000;
    }
    
    body {
        background: white;
        color: black;
    }
}