/* MAIN.CSS - Estilos Principais */

/* Variáveis CSS */
:root {
    /* Cores principais */
    --primary-purple: #8B5CF6;
    --dark-purple: #6D28D9;
    --light-purple: #A78BFA;
    --purple-glow: rgba(139, 92, 246, 0.2);
    
    /* Cores neutras */
    --black: #0F0F23;
    --dark-gray: #1F1F2E;
    --medium-gray: #2D2D42;
    --light-gray: #6B7280;
    --white: #FFFFFF;
    --off-white: #F9FAFB;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary-purple) 0%, var(--dark-purple) 100%);
    --gradient-dark: linear-gradient(135deg, var(--black) 0%, var(--dark-gray) 100%);
    
    /* Tipografia */
    --font-family: 'Poppins', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    
    /* Espaçamentos */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    
    /* Bordas e sombras */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transições */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 300ms ease-in-out;
}

/* Configurações base */
html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-weight: 400;
    line-height: 1.6;
    color: var(--white);
    background: var(--gradient-dark);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Container principal */
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-6);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-8);
}

/* Header */
.header {
    text-align: center;
    margin-bottom: var(--spacing-4);
}

.title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-4);
    color: var(--white);
}

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: inline-block;
}

.subtitle {
    font-size: var(--font-size-lg);
    color: var(--light-gray);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 300;
}

/* Card do gerador */
.generator-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-xl);
    transition: var(--transition-normal);
}

.generator-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px -12px rgba(139, 92, 246, 0.25);
}

/* Display da senha */
.password-display {
    position: relative;
    margin-bottom: var(--spacing-6);
}

.password-field {
    width: 100%;
    padding: var(--spacing-4) var(--spacing-16) var(--spacing-4) var(--spacing-4);
    font-family: 'Courier New', monospace;
    font-size: var(--font-size-lg);
    font-weight: 600;
    background: var(--dark-gray);
    border: 2px solid var(--medium-gray);
    border-radius: var(--border-radius-md);
    color: var(--white);
    transition: var(--transition-normal);
    min-height: 60px;
    word-break: break-all;
}

.password-field:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 3px var(--purple-glow);
}

.copy-btn {
    position: absolute;
    right: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    padding: var(--spacing-3);
    background: var(--gradient-primary);
    border-radius: var(--border-radius-md);
    color: var(--white);
    transition: var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
}

.copy-btn:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: var(--shadow-lg);
}

.copy-btn:active {
    transform: translateY(-50%) scale(0.95);
}

/* Controles */
.controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-6);
}

.length-control {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.control-label {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--white);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#lengthValue {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

/* Slider personalizado */
.slider {
    width: 100%;
    height: 8px;
    background: var(--medium-gray);
    border-radius: 4px;
    outline: none;
    transition: var(--transition-normal);
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
}

.slider:focus {
    outline: 2px solid var(--primary-purple);
    outline-offset: 2px;
}

.slider::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition-fast);
    border: 2px solid var(--white);
    box-shadow: var(--shadow-sm);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 0 15px var(--purple-glow);
}

.slider::-webkit-slider-thumb:active {
    transform: scale(1.05);
}

.slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--white);
    transition: var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 0 15px var(--purple-glow);
}

.slider::-moz-range-track {
    width: 100%;
    height: 8px;
    background: var(--medium-gray);
    border-radius: 4px;
    border: none;
}

.slider::-ms-thumb {
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid var(--white);
    transition: var(--transition-fast);
}

.slider::-ms-track {
    width: 100%;
    height: 8px;
    background: var(--medium-gray);
    border-radius: 4px;
    border: none;
    color: transparent;
}

.slider::-ms-fill-lower {
    background: var(--primary-purple);
    border-radius: 4px;
}

.slider::-ms-fill-upper {
    background: var(--medium-gray);
    border-radius: 4px;
}

/* Opções */
.options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-4);
}

.option {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    padding: var(--spacing-3);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition-normal);
}

.option:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-purple);
}

/* Checkbox personalizado */
input[type="checkbox"] {
    width: 20px;
    height: 20px;
    -webkit-appearance: none;
    -moz-appearance: none;
    -ms-appearance: none;
    appearance: none;
    background: var(--dark-gray);
    border: 2px solid var(--medium-gray);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    flex-shrink: 0;
}

input[type="checkbox"]:checked {
    background: var(--gradient-primary);
    border-color: var(--primary-purple);
}

input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--white);
    font-weight: bold;
    font-size: 12px;
}

input[type="checkbox"]:hover {
    border-color: var(--primary-purple);
    box-shadow: 0 0 5px var(--purple-glow);
}

.option label {
    font-size: var(--font-size-sm);
    font-weight: 400;
    color: var(--white);
    cursor: pointer;
    user-select: none;
}

/* Botão de gerar */
.generate-btn {
    width: 100%;
    padding: var(--spacing-4);
    background: var(--gradient-primary);
    border-radius: var(--border-radius-md);
    color: var(--white);
    font-size: var(--font-size-lg);
    font-weight: 600;
    transition: var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-3);
    box-shadow: var(--shadow-md);
}

.generate-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #A78BFA 0%, var(--primary-purple) 100%);
}

.generate-btn:active {
    transform: translateY(0);
}

/* Indicador de força */
.strength-indicator {
    margin-top: var(--spacing-6);
    padding: var(--spacing-4);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.strength-label {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--white);
    margin-bottom: var(--spacing-3);
}

.strength-bar {
    width: 100%;
    height: 8px;
    background: var(--medium-gray);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: var(--spacing-2);
}

.strength-fill {
    height: 100%;
    width: 0%;
    border-radius: 4px;
    transition: var(--transition-slow);
}

.strength-text {
    font-size: var(--font-size-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Classes de força */
.strength-weak .strength-fill {
    width: 25%;
    background: linear-gradient(90deg, #EF4444, #DC2626);
}
.strength-weak .strength-text {
    color: #EF4444;
}

.strength-fair .strength-fill {
    width: 50%;
    background: linear-gradient(90deg, #F59E0B, #D97706);
}
.strength-fair .strength-text {
    color: #F59E0B;
}

.strength-good .strength-fill {
    width: 75%;
    background: linear-gradient(90deg, #10B981, #059669);
}
.strength-good .strength-text {
    color: #10B981;
}

.strength-strong .strength-fill {
    width: 100%;
    background: var(--gradient-primary);
}
.strength-strong .strength-text {
    color: var(--primary-purple);
}

/* Dicas */
.tips {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-xl);
    padding: var(--spacing-6);
}

.tips-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--white);
    margin-bottom: var(--spacing-4);
}

.tips-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
}

.tips-list li {
    font-size: var(--font-size-base);
    color: var(--light-gray);
    position: relative;
    padding-left: var(--spacing-6);
}

.tips-list li::before {
    content: '🔒';
    position: absolute;
    left: 0;
    top: 0;
}

/* Footer */
.footer {
    text-align: center;
    padding: var(--spacing-6);
    margin-top: auto;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--light-gray);
    font-size: var(--font-size-sm);
}

/* Estados e animações */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn var(--transition-slow) ease-out;
}

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

.pulse {
    animation: pulse 2s infinite;
}

/* Estados de feedback */
.copy-success {
    background: linear-gradient(135deg, #10B981, #059669) !important;
}

.copy-success::after {
    content: '✓';
    position: absolute;
    right: var(--spacing-3);
    top: 50%;
    transform: translateY(-50%);
    color: var(--white);
    font-weight: bold;
}

/* Responsividade */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-4);
        gap: var(--spacing-6);
    }
    
    .title {
        font-size: var(--font-size-3xl);
    }
    
    .subtitle {
        font-size: var(--font-size-base);
    }
    
    .generator-card {
        padding: var(--spacing-6);
    }
    
    .options {
        grid-template-columns: 1fr;
    }
    
    .password-field {
        font-size: var(--font-size-base);
        padding-right: var(--spacing-12);
    }
}

@media (max-width: 480px) {
    .container {
        padding: var(--spacing-3);
    }
    
    .title {
        font-size: var(--font-size-2xl);
    }
    
    .generator-card {
        padding: var(--spacing-4);
    }
    
    .control-label {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-2);
    }
}

/* Melhorias de acessibilidade */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Modo de alto contraste */
@media (prefers-contrast: high) {
    :root {
        --light-gray: #E5E7EB;
        --medium-gray: #9CA3AF;
    }
    
    .generator-card, .tips {
        border-color: var(--white);
        background: rgba(255, 255, 255, 0.1);
    }
}

/* Foco visível para navegação por teclado */
:focus-visible {
    outline: 2px solid var(--primary-purple);
    outline-offset: 2px;
}