/* ========================================
   CSS Variables & Root Styles
======================================== */
:root {
    /* Colors - Modern Dark Theme with Teal Accents */
    --color-bg-primary: #0a0f1a;
    --color-bg-secondary: #111827;
    --color-bg-card: linear-gradient(145deg, #151d2e 0%, #1a2436 100%);
    --color-bg-card-hover: linear-gradient(145deg, #1a2436 0%, #1f2d45 100%);

    --color-accent-primary: #14b8a6;
    --color-accent-secondary: #0ea5e9;
    --color-accent-gradient: linear-gradient(135deg, #14b8a6 0%, #0ea5e9 100%);

    --color-text-primary: #f1f5f9;
    --color-text-secondary: #94a3b8;
    --color-text-muted: #64748b;

    --color-border: rgba(148, 163, 184, 0.1);
    --color-border-focus: rgba(20, 184, 166, 0.5);

    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(20, 184, 166, 0.15);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Typography */
    --font-primary: 'Inter', sans-serif;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;
}

/* ========================================
   Reset & Base Styles
======================================== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Animated Background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(ellipse at 20% 20%, rgba(20, 184, 166, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(14, 165, 233, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 50% 50%, rgba(20, 184, 166, 0.03) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

/* ========================================
   App Container
======================================== */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-lg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ========================================
   Header Styles
======================================== */
.app-header {
    text-align: center;
    padding: var(--space-2xl) 0;
    margin-bottom: var(--space-xl);
}

.header-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo-icon {
    width: 48px;
    height: 48px;
    color: var(--color-accent-primary);
    filter: drop-shadow(0 0 10px rgba(20, 184, 166, 0.5));
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {

    0%,
    100% {
        filter: drop-shadow(0 0 10px rgba(20, 184, 166, 0.5));
    }

    50% {
        filter: drop-shadow(0 0 20px rgba(20, 184, 166, 0.8));
    }
}

.logo h1 {
    font-size: 2.25rem;
    font-weight: 700;
    background: var(--color-accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
}

.tagline {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    font-weight: 400;
}

/* ========================================
   Row Layouts
======================================== */
.row-two-cols {
    display: grid;
    grid-template-columns: 350px 1fr;
    gap: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.row-two-cols .card {
    margin-bottom: 0;
}

.layouts-grid-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.layouts-grid-row .layout-card {
    display: flex;
    flex-direction: column;
}

.layouts-grid-row .layout-card-large {
    grid-column: auto;
}

/* ========================================
   Card Styles
======================================== */
.card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    background: rgba(20, 184, 166, 0.03);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: var(--color-accent-gradient);
    border-radius: 50%;
    font-size: 1rem;
    font-weight: 700;
    color: #0a0f1a;
    flex-shrink: 0;
}

.card-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.card-body {
    padding: var(--space-lg);
}

/* ========================================
   Country Selection
======================================== */
.select-wrapper {
    position: relative;
    max-width: 400px;
}

.country-select {
    width: 100%;
    padding: var(--space-md) var(--space-xl) var(--space-md) var(--space-md);
    font-family: var(--font-primary);
    font-size: 1.1rem;
    background: var(--color-bg-secondary);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-primary);
    cursor: pointer;
    appearance: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.country-select:focus {
    outline: none;
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.2);
}

.select-arrow {
    position: absolute;
    right: var(--space-md);
    top: 50%;
    transform: translateY(-50%);
    width: 20px;
    height: 20px;
    color: var(--color-text-secondary);
    pointer-events: none;
}

.photo-spec-info {
    margin-top: var(--space-lg);
}

.spec-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: rgba(20, 184, 166, 0.1);
    border: 1px solid rgba(20, 184, 166, 0.3);
    border-radius: var(--radius-xl);
    font-size: 0.95rem;
    color: var(--color-accent-primary);
}

.spec-badge svg {
    width: 18px;
    height: 18px;
}

.spec-badge strong {
    color: var(--color-text-primary);
    font-weight: 600;
}

/* ========================================
   Upload Area
======================================== */
.upload-area {
    position: relative;
    min-height: 280px;
}

.upload-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-2xl);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    min-height: 280px;
}

.upload-placeholder:hover {
    border-color: var(--color-accent-primary);
    background: rgba(20, 184, 166, 0.05);
}

.upload-placeholder.drag-over {
    border-color: var(--color-accent-primary);
    background: rgba(20, 184, 166, 0.1);
    transform: scale(1.01);
}

.upload-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent-gradient);
    border-radius: 50%;
    margin-bottom: var(--space-lg);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

.upload-icon svg {
    width: 32px;
    height: 32px;
    color: #0a0f1a;
}

.upload-text {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-xs);
}

.upload-hint {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-md);
}

.upload-formats {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding: var(--space-xs) var(--space-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-xl);
}

/* ========================================
   Preview Container
======================================== */
.preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-lg);
}

.passport-preview-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.preview-frame {
    width: 160px;
    height: 200px;
    border: 3px solid var(--color-accent-primary);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg), 0 0 30px rgba(20, 184, 166, 0.3);
    position: relative;
    background: var(--color-bg-secondary);
}

.preview-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: calc(var(--radius-md) - 3px);
    pointer-events: none;
    z-index: 10;
}

.preview-image-container {
    width: 100%;
    height: 100%;
    cursor: grab;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    background: #fff;
    /* Ensure white background behind photo */
}

.preview-image-container:active {
    cursor: grabbing;
}

.preview-image-container img {
    /* object-fit: cover; REMOVED to stop auto-cropping */
    /* width: 100%; REMOVED */
    /* height: 100%; REMOVED */
    /* Let JS control dimensions and transform */
    max-width: none;
    max-height: none;
    display: block;
    transform-origin: center center;
    transition: transform 0.1s ease-out;
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
}

.preview-dimensions {
    font-size: 0.9rem;
    color: var(--color-accent-primary);
    font-weight: 600;
    padding: var(--space-xs) var(--space-md);
    background: rgba(20, 184, 166, 0.1);
    border-radius: var(--radius-xl);
    border: 1px solid rgba(20, 184, 166, 0.3);
}

/* Adjustment Controls */
.adjustment-controls {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    width: 100%;
    max-width: 350px;
    padding: var(--space-md);
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.control-label {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.control-label svg {
    color: var(--color-accent-primary);
}

.slider-container {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.slider-btn {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.slider-btn:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
}

.slider {
    flex: 1;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--color-bg-primary);
    border-radius: 3px;
    outline: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    background: var(--color-accent-gradient);
    border-radius: 50%;
    cursor: pointer;
    transition: transform var(--transition-fast);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    background: var(--color-accent-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

.slider-value {
    min-width: 50px;
    text-align: center;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent-primary);
}

.position-hint {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    font-style: italic;
}

.btn-reset {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-secondary);
    font-family: var(--font-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-reset:hover {
    border-color: var(--color-error);
    color: var(--color-error);
}

.btn-reset svg {
    color: inherit;
}

.btn-change-photo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    background: transparent;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-secondary);
    font-family: var(--font-primary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-change-photo:hover {
    border-color: var(--color-accent-primary);
    color: var(--color-accent-primary);
    background: rgba(20, 184, 166, 0.1);
}

.btn-change-photo svg {
    width: 18px;
    height: 18px;
}

/* ========================================
   Layouts Section
======================================== */
.layouts-section {
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.layouts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
}

.layout-card {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.layout-card:hover {
    border-color: var(--color-accent-primary);
    box-shadow: var(--shadow-glow);
}

.layout-card-large {
    grid-column: 1 / -1;
}

.layout-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    background: rgba(20, 184, 166, 0.05);
    border-bottom: 1px solid var(--color-border);
}

.layout-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
}

.layout-info {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    padding: var(--space-xs) var(--space-sm);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
}

.layout-preview {
    padding: var(--space-md);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    background:
        repeating-linear-gradient(0deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.02) 10px,
            rgba(255, 255, 255, 0.02) 11px),
        repeating-linear-gradient(90deg,
            transparent,
            transparent 10px,
            rgba(255, 255, 255, 0.02) 10px,
            rgba(255, 255, 255, 0.02) 11px);
}

/* Paper Layouts */
.paper-3r,
.paper-4r,
.paper-a4 {
    background: white;
    box-shadow: var(--shadow-md), 0 0 0 1px rgba(0, 0, 0, 0.1);
    display: grid;
    justify-content: center;
    align-content: center;
}

/* 3R Paper: 89mm × 127mm, 4 photos (2x2) */
.paper-3r {
    width: 134px;
    height: 190px;
    grid-template-columns: repeat(2, 42px);
    grid-template-rows: repeat(2, 53px);
    gap: 8px;
    padding: 16px 12px;
}

/* 4R Paper: 102mm × 152mm, Mixed Layout
   Left Col: 2 Rotated + 1 Upright
   Right Col: 2 Upright + 1 Rotated (right-aligned) */
.paper-4r.layout-mixed {
    display: flex;
    flex-direction: row;
    gap: 0;
    /* No gap between columns */
    padding: 2px 4px;
    /* Minimal outer padding */
    width: 136px;
    height: 203px;
    grid-template-columns: none;
    grid-template-rows: none;
    align-items: flex-start;
    /* Top aligned */
    justify-content: center;
    /* Center horizontally */
}

.p4r-col-left,
.p4r-col-right {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* Left Column: Rotated Photos (50mm width x 40mm height on paper) -> 66px x 53px visually */
.photo-wrapper-rotated {
    width: 66px;
    height: 53px;
    background: #ffffff;
    /* White background only */
    padding: 2px;
    /* White padding/margin */
    /* border: 1px solid #e5e7eb; Removed border */
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.photo-wrapper-rotated img {
    /* Image is upright, so we need to rotate it -90deg and swap dimensions */
    width: 53px;
    /* visual height becomes width */
    height: 66px;
    /* visual width becomes height */
    transform: rotate(-90deg);
    object-fit: cover;
}

/* Right Column: Normal Photos (40mm x 50mm) -> 53px x 66px visually */
.photo-wrapper-normal {
    width: 53px;
    height: 66px;
    background: #ffffff;
    padding: 2px;
    /* border: 1px solid #e5e7eb; */
    overflow: hidden;
    overflow: hidden;
}

.photo-wrapper-normal img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Right-aligned rotated photo (extends leftward) */
.photo-wrapper-rotated.right-aligned {
    margin-left: auto;
    margin-right: 0;
}

/* Stamp Photo: 20mm x 25mm -> ~26px x 33px visually */
.photo-wrapper-stamp {
    width: 26px;
    height: 33px;
    background: #ffffff;
    padding: 2px;
    /* border: 1px solid #e5e7eb; */
    overflow: hidden;
    overflow: hidden;
    margin: 0 auto;
    /* Center in column */
}

.photo-wrapper-stamp img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* A4 Paper: 210mm × 297mm, 20 photos (4x5) */
.paper-a4 {
    width: 210px;
    height: 297px;
    grid-template-columns: repeat(4, 40px);
    grid-template-rows: repeat(5, 50px);
    gap: 6px;
    padding: 12px 17px;
}

.paper-3r .photo-cell,
.paper-4r .photo-cell,
.paper-a4 .photo-cell {
    background: #f3f4f6;
    overflow: hidden;
    border: 1px solid #e5e7eb;
    border-radius: 1px;
}

.photo-cell img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.layout-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-md);
    border-top: 1px solid var(--color-border);
}

.photo-count {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.photo-count svg {
    width: 18px;
    height: 18px;
    color: var(--color-accent-primary);
}

.btn-download {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-accent-gradient);
    border: none;
    border-radius: var(--radius-md);
    color: #0a0f1a;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(20, 184, 166, 0.4);
}

.btn-download svg {
    width: 18px;
    height: 18px;
}

/* ========================================
   Footer
======================================== */
.app-footer {
    margin-top: auto;
    padding: var(--space-xl) 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.app-footer p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* ========================================
   Responsive Styles
======================================== */
@media (max-width: 768px) {
    .app-container {
        padding: var(--space-md);
    }

    .logo h1 {
        font-size: 1.75rem;
    }

    .logo-icon {
        width: 40px;
        height: 40px;
    }

    .tagline {
        font-size: 1rem;
    }

    .card-header {
        padding: var(--space-md);
    }

    .card-body {
        padding: var(--space-md);
    }

    .layouts-grid {
        grid-template-columns: 1fr;
    }

    .row-two-cols {
        grid-template-columns: 1fr;
    }

    .layouts-grid-row {
        grid-template-columns: 1fr;
    }

    .layout-card-large {
        grid-column: auto;
    }

    .paper-a4 {
        width: 160px;
        height: 226px;
    }
}

@media (max-width: 480px) {
    .logo {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .logo h1 {
        font-size: 1.5rem;
    }

    .preview-frame {
        width: 120px;
        height: 150px;
    }

    .layout-footer {
        flex-direction: column;
        gap: var(--space-sm);
    }

    .btn-download {
        width: 100%;
        justify-content: center;
    }
}

/* ========================================
   Control Row
======================================== */
.control-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

/* ========================================
   Utility Classes
======================================== */
.hidden {
    display: none !important;
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}