/* Payment QR Code Application - Main Stylesheet */

/* ===== CSS Variables (Design System) ===== */
:root {
    /* Colors */
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #6c757d;
    --secondary-hover: #5a6268;
    --green-color: #059669;
    --green-hover: #047857;
    --orange-color: #ea580c;
    --orange-hover: #c2410c;
    --red-color: #dc2626;
    --red-hover: #b91c1c;
    --blue-color: #0891b2;
    --blue-hover: #0e7490;
    --purple-color: #8b5cf6;
    --purple-hover: #7c3aed;
    
    /* Background Colors */
    --bg-primary: #f4f4f4;
    --bg-white: #ffffff;
    --bg-error: #FFD2D2;
    
    /* Text Colors */
    --text-primary: #333333;
    --text-secondary: #555555;
    --text-error: #D8000C;
    --text-white: #ffffff;
    
    /* Spacing */
    --spacing-xs: 5px;
    --spacing-sm: 10px;
    --spacing-md: 15px;
    --spacing-lg: 20px;
    --spacing-xl: 25px;
    --spacing-xxl: 30px;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 5px;
    --border-radius-lg: 8px;
    
    /* Shadows */
    --shadow-sm: 0 0 10px rgba(0,0,0,0.1);
    --shadow-lg: 0 0 20px rgba(0, 0, 0, 0.5);
    
    /* Typography */
    --font-family: sans-serif;
    --font-size-sm: 0.9em;
    --font-size-base: 1em;
    --font-size-lg: 1.1em;
    --font-size-xl: 1.5em;
    --font-size-xxl: 1.8em;
    
    /* Layout */
    --container-max-width: 800px;
    --container-max-width-small: 350px;
    --container-padding: 20px;
}

/* ===== Reset & Base Styles ===== */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    margin: 0;
    background-color: var(--bg-primary);
    padding: var(--container-padding);
}

#app {
    display: contents;
}

/* ===== Layout Components ===== */
.container {
    background-color: var(--bg-white);
    padding: var(--container-padding);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
    max-width: var(--container-max-width);
    width: 90%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.container-small {
    max-width: var(--container-max-width-small);
}

.top-elements {
    display: flex;
    justify-content: space-between;
    width: 100%;
    align-items: flex-start;
    margin-bottom: var(--spacing-md);
}

/* ===== Typography ===== */
h1 {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
    font-size: var(--font-size-xl);
    text-align: center;
}

h1.large {
    font-size: var(--font-size-xxl);
    margin-bottom: var(--spacing-lg);
}

p {
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: var(--font-size-lg);
}

p.small {
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

/* ===== Buttons ===== */
.button {
    display: inline-block;
    padding: 12px var(--spacing-xl);
    font-size: var(--font-size-base);
    color: var(--text-white);
    background-color: var(--secondary-color);
    border: none;
    border-radius: var(--border-radius-md);
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.3s ease;
    text-align: center;
}

.button:hover {
    background-color: var(--secondary-hover);
}

.button.full-width {
    width: 100%;
    box-sizing: border-box;
}

/* Button Variants */
.button-primary {
    background-color: var(--primary-color);
}

.button-primary:hover {
    background-color: var(--primary-hover);
}

.button-green {
    background-color: var(--primary-color);
}

.button-green:hover {
    background-color: var(--primary-hover);
}

.button-orange {
    background-color: var(--primary-color);
}

.button-orange:hover {
    background-color: var(--primary-hover);
}

.button-red {
    background-color: var(--primary-color);
}

.button-red:hover {
    background-color: var(--primary-hover);
}

.button-blue {
    background-color: var(--primary-color);
}

.button-blue:hover {
    background-color: var(--primary-hover);
}

.button-purple {
    background-color: var(--primary-color);
}

.button-purple:hover {
    background-color: var(--primary-hover);
}

/* ===== Form Elements ===== */
.form-wrapper {
    width: 100%;
}

.form-group {
    margin-bottom: var(--spacing-lg);
    text-align: left;
}

label {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-weight: bold;
}

input {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid #ccc;
    border-radius: var(--border-radius-sm);
    box-sizing: border-box;
    font-size: var(--font-size-base);
}

input:focus {
    border-color: var(--primary-color);
    outline: none;
}

/* ===== Button Container ===== */
/* ===== Client Info ===== */
.client-info {
    width: 100%;
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.client-info .client-name {
    font-size: var(--font-size-lg);
    font-weight: bold;
    color: var(--text-primary);
    line-height: 1.3;
}

.client-info .refer-no {
    margin-top: var(--spacing-xs);
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
}

.button-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    width: 100%;
}

/* ===== QR Code Display ===== */
.qr-code {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
    margin-bottom: var(--spacing-xl);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Description Wrapper ===== */
.description-wrapper {
    text-align: left;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    width: 100%;
    box-sizing: border-box;
}

.description-wrapper p {
    margin-top: 0;
    margin-bottom: var(--spacing-xs);
    white-space: pre-line;
    line-height: 1.6;
    color: var(--text-secondary);
}

.description-wrapper p:last-child {
    margin-bottom: 0;
}

.description-note {
    margin-top: var(--spacing-sm) !important;
}

/* ===== Error Messages ===== */
.error-message {
    color: var(--text-error);
    background-color: var(--bg-error);
    border: 1px solid var(--text-error);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    display: none;
    width: 100%;
    box-sizing: border-box;
}

/* ===== Guide Images ===== */
.guide-images {
    margin: var(--spacing-lg) 0;
    width: 100%;
}

.guide-images img {
    max-width: 100%;
    height: auto;
    border: 1px solid #ddd;
    border-radius: var(--border-radius-md);
    margin-bottom: var(--spacing-sm);
    display: block;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.guide-images img:hover {
    opacity: 0.8;
}

/* ===== Fullscreen Overlay ===== */
.fullscreen-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    cursor: pointer;
}

.fullscreen-image {
    max-width: 95%;
    max-height: 95%;
    object-fit: contain;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
}

.close-button {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-xxl);
    color: var(--text-white);
    font-size: var(--spacing-xxl);
    font-weight: bold;
    cursor: pointer;
    background: none;
    border: none;
    z-index: 1001;
}

.close-button:hover {
    color: #ccc;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    :root {
        --container-padding: 25px;
        --spacing-lg: 25px;
        --spacing-xl: 30px;
    }
    
    .container {
        width: 95%;
        margin: 10px;
    }
    
    h1 {
        font-size: var(--font-size-lg);
    }
    
    h1.large {
        font-size: var(--font-size-xl);
    }
    
    .button {
        padding: 15px var(--spacing-xl);
        font-size: var(--font-size-base);
    }
    
    .footer {
        margin-top: var(--spacing-md);
        padding: var(--spacing-xs) 0;
    }
    
    .social-icons {
        gap: var(--spacing-sm);
    }
    
    .social-icon {
        width: 28px;
        height: 28px;
    }
    
    .modal {
        padding: var(--spacing-lg);
        max-width: 350px;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 20px;
        --spacing-md: 15px;
        --spacing-lg: 20px;
        --spacing-xl: 25px;
    }
    
    body {
        padding: 10px;
    }
    
    .container {
        width: 100%;
        margin: 0;
        border-radius: var(--border-radius-md);
    }
    
    .button {
        padding: 15px var(--spacing-lg);
        font-size: var(--font-size-base);
    }
    
    .button-container {
        gap: var(--spacing-md);
    }
    
    .description-wrapper {
        font-size: var(--font-size-base);
    }
    
    .footer {
        margin-top: var(--spacing-sm);
        padding: var(--spacing-xs) 0;
    }
    
    .social-icons {
        gap: var(--spacing-xs);
    }
    
    .social-icon {
        width: 24px;
        height: 24px;
    }
    
    .modal {
        padding: var(--spacing-md);
        max-width: 300px;
    }
    

}

/* ===== Footer Styles ===== */
.footer {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-sm) 0;
    text-align: center;
    border-top: 1px solid #e5e5e5;
}

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: center;
}

.company-name {
    font-weight: 500;
    color: var(--text-secondary);
    margin: 0;
    font-size: var(--font-size-sm);
}

.copyright {
    color: var(--text-secondary);
    margin: 0;
    font-size: var(--font-size-sm);
    opacity: 0.8;
}

.social-icons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-sm);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    transition: transform 0.2s ease;
}

.social-icon:hover {
    transform: scale(1.1);
}

.social-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ===== Modal Styles ===== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal {
    background-color: var(--bg-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    max-width: 400px;
    width: 90%;
    position: relative;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    font-size: var(--spacing-xl);
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s ease;
}

.modal-close:hover {
    background-color: var(--bg-primary);
}

.modal-content {
    text-align: center;
}

.modal-content p {
    margin: 0 0 var(--spacing-md) 0;
    color: var(--text-primary);
    font-size: var(--font-size-base);
    font-weight: 600;
}

.modal-image {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}