/* ========================================
   GeraZap - Estilos
   ======================================== */

/* Reset e variáveis */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Cores Agência Brasix + Dark Mode */
    --primary: #77183e;
    --primary-dark: #5a122e;
    --primary-light: #9a1f52;

    --bg-primary: #0B141A;
    --bg-secondary: #111B21;
    --bg-tertiary: #1F2C34;
    --bg-card: #202C33;
    --bg-input: #0B141A;

    --text-primary: #E9EDEF;
    --text-secondary: #8696A0;
    --text-muted: #667781;
    --text-on-primary: #FFFFFF;

    --border-color: #2A3942;
    --border-focus: #77183e;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 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;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    --footer-height: 80px;
    --footer-height-safe: calc(var(--footer-height) + env(safe-area-inset-bottom, 0px));
}

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

/* Base */
html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding-bottom: var(--footer-height-safe);
}

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

/* Container */
.container {
    width: 100%;
    max-width: 480px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    text-align: center;
    padding: var(--spacing-md) 0 var(--spacing-xl);
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.logo-icon {
    width: 40px;
    height: 40px;
    color: var(--primary);
    flex-shrink: 0;
}

.subtitle {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    font-weight: 400;
}

/* Form Section */
.form-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    margin-bottom: var(--spacing-lg);
}

.generator-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

/* Input Groups */
.input-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.input-label {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.input-icon {
    width: 18px;
    height: 18px;
    color: var(--primary);
    flex-shrink: 0;
}

.input-field {
    width: 100%;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    font-family: inherit;
    font-size: var(--font-size-base);
    color: var(--text-primary);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input-field::placeholder {
    color: var(--text-muted);
}

.input-field:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(119, 24, 62, 0.2);
}

.input-field:invalid:not(:placeholder-shown) {
    border-color: #FF6B6B;
}

.textarea-field {
    resize: vertical;
    min-height: 100px;
    line-height: 1.5;
}

.input-help {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: inherit;
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary {
    background: var(--primary);
    color: var(--text-on-primary);
    width: 100%;
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    flex: 1;
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-input);
    border-color: var(--border-focus);
}

.btn-copy {
    padding: var(--spacing-md) var(--spacing-lg);
}

.btn-pix {
    background: transparent;
    color: #ffffff;
    border: 1px solid #ffffff;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-sm);
    animation: pulse-soft 3s ease-in-out infinite;
}

.btn-pix:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
}

/* Soft pulse animation for PIX button */
@keyframes pulse-soft {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(255, 255, 255, 0);
    }
    50% {
        box-shadow: 0 0 0 8px rgba(255, 255, 255, 0.15);
    }
}

/* Result Section */
.result-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border-color);
    animation: slideUp 0.3s ease forwards;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.section-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

/* Result Card */
.result-card {
    margin-bottom: var(--spacing-xl);
}

.result-link-container {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.result-link {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    font-family: 'SF Mono', 'Fira Code', monospace;
    font-size: var(--font-size-sm);
    color: var(--primary);
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.result-link:focus {
    outline: none;
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(119, 24, 62, 0.2);
}

/* QR Section */
.qr-section {
    text-align: center;
}

.qr-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.qr-container {
    display: inline-flex;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.qr-container canvas {
    display: block;
}

.qr-hint {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

/* Footer */
.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md);
    padding-bottom: calc(var(--spacing-md) + env(safe-area-inset-bottom, 0px));
    z-index: 100;
    min-height: var(--footer-height);
    height: auto;
}

.footer-content {
    max-width: 480px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
    text-align: center;
}

.footer-text {
    font-size: var(--font-size-xs);
    color: var(--text-secondary);
    line-height: 1.4;
    max-width: 90%;
}

/* Footer hidden state (when keyboard is open) */
.footer--hidden {
    transform: translateY(100%);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

.footer:not(.footer--hidden) {
    transition: transform var(--transition-normal), opacity var(--transition-normal);
}

/* Toast */
.toast {
    position: fixed;
    bottom: calc(var(--footer-height) + var(--spacing-md) + env(safe-area-inset-bottom, 0px));
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-card);
    border: 1px solid var(--primary);
    color: var(--primary);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 200;
    white-space: nowrap;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    visibility: visible;
}

.toast.success {
    border-color: var(--primary);
    color: var(--primary);
}

.toast.error {
    border-color: #FF6B6B;
    color: #FF6B6B;
}

/* Focus visible para acessibilidade */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Responsive */
@media (max-width: 400px) {
    :root {
        --font-size-3xl: 1.75rem;
        --spacing-lg: 20px;
    }

    .container {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .form-section,
    .result-section {
        padding: var(--spacing-md);
    }

    .footer-text {
        font-size: 11px;
    }
}

@media (min-width: 600px) {
    .container {
        padding-top: var(--spacing-xl);
        padding-bottom: calc(var(--footer-height-safe) + var(--spacing-xl));
    }

    .form-section,
    .result-section {
        padding: var(--spacing-xl);
    }

    .result-link-container {
        flex-wrap: nowrap;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: var(--text-primary);
        --border-focus: var(--primary-light);
    }
}

/* Print styles */
@media print {
    .footer,
    .btn,
    .toast {
        display: none !important;
    }

    body {
        background: white;
        color: black;
    }

    .form-section,
    .result-section {
        background: white;
        border: 1px solid #ccc;
    }
}