/* Core Variables & Tokens */
:root {
    --bg-gradient-1: #0f172a;
    --bg-gradient-2: #1e1b4b;
    --bg-gradient-3: #312e81;
    
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.4);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #6366f1;
    --accent-hover: #818cf8;
    
    --doc-bg: #ffffff;
    --doc-text: #334155;
    --doc-heading: #0f172a;
    --doc-primary: #4338ca;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-gradient-1);
    background-image: radial-gradient(circle at top right, var(--bg-gradient-3) 0%, transparent 40%),
                      radial-gradient(circle at bottom left, var(--bg-gradient-2) 0%, transparent 40%);
    color: var(--text-main);
    min-height: 100vh;
    overflow: hidden;
}

/* App Layout */
.app-container {
    display: flex;
    height: 100vh;
    width: 100%;
}

/* Sidebar / Form Section (Glassmorphism) */
.form-section {
    width: 460px;
    height: 100%;
    padding: 2.5rem 2rem;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    box-shadow: 10px 0 30px rgba(0,0,0,0.1);
    z-index: 10;
}

/* Header */
.app-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.logo-wrapper {
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.logo-icon {
    font-size: 1.5rem;
    color: white;
}

h1 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #fff, #cbd5e1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

/* Form Styles */
form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    flex-grow: 1;
}

.input-row {
    display: flex;
    gap: 1rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex: 1;
}

label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hint {
    font-size: 0.7rem;
    opacity: 0.7;
    text-transform: none;
    letter-spacing: normal;
}

input, textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: all 0.3s ease;
    resize: vertical;
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
    background: rgba(0, 0, 0, 0.35);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}

input::placeholder, textarea::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

/* Buttons */
.action-buttons {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--glass-border);
}

.btn {
    width: 100%;
    padding: 1rem;
    border-radius: 12px;
    border: none;
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
    background: var(--text-main);
    color: #0f172a;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -5px rgba(255, 255, 255, 0.2);
    background: #ffffff;
}

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

/* Live Preview Section */
.preview-section {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 3rem;
    overflow-y: auto;
    perspective: 1000px;
    /* Custom scrollbar for main area */
}

.resume-wrapper {
    background: var(--doc-bg);
    width: 100%;
    max-width: 850px;
    min-height: 1131px; /* Approximation for A4 Ratio */
    padding: 4rem 4.5rem;
    border-radius: 4px;
    box-shadow: var(--glass-shadow);
    color: var(--doc-text);
    transition: transform 0.3s ease;
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(60px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Photo Upload Form Styles */
.photo-upload-group {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background: rgba(0,0,0,0.15);
    padding: 1rem;
    border-radius: 12px;
    border: 1px dashed rgba(255,255,255,0.2);
}

.photo-preview-form {
    width: 65px;
    height: 65px;
    border-radius: 50%;
    background: rgba(255,255,255,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 2px solid rgba(255,255,255,0.1);
    flex-shrink: 0;
}

.photo-preview-form img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-preview-form i {
    font-size: 1.8rem;
    color: rgba(255,255,255,0.4);
}

.file-input {
    padding: 0;
    background: transparent;
    border: none;
    cursor: pointer;
}
.file-input::file-selector-button {
    background: var(--accent);
    color: white;
    padding: 0.4rem 0.8rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    font-family: var(--font-body);
    transition: background 0.3s;
    margin-right: 1rem;
}
.file-input::file-selector-button:hover {
    background: var(--accent-hover);
}

/* Academic/Professional Document Typography Settings */
.resume-document header {
    display: flex;
    align-items: center;
    gap: 2rem;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 1.5rem;
    margin-bottom: 2.5rem;
}

.profile-photo-container {
    flex-shrink: 0;
    width: 110px;
    height: 110px;
    border-radius: 50%;
    overflow: hidden;
    background-color: #f8fafc;
    border: 4px solid #f1f5f9;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.profile-photo-container img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.header-content {
    flex: 1;
}

.resume-document h2 {
    font-family: var(--font-heading);
    color: var(--doc-heading);
    font-size: 2.8rem;
    margin-bottom: 0.5rem;
    line-height: 1.1;
    letter-spacing: -0.01em;
}

.resume-document .contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    color: #64748b;
    font-size: 0.95rem;
    font-weight: 500;
}

.resume-document .contact-info span {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.resume-document .contact-info i {
    color: var(--doc-primary);
}

.resume-document section {
    margin-bottom: 2.5rem;
}

.resume-document section:last-child {
    margin-bottom: 0;
}

.resume-document h3 {
    font-family: var(--font-heading);
    color: var(--doc-primary);
    font-size: 1.25rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.2rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    border-bottom: 1px solid #f1f5f9;
    padding-bottom: 0.5rem;
}

.resume-document .content-text {
    line-height: 1.7;
    white-space: pre-wrap;
    color: #475569;
    font-size: 1rem;
}

/* Skills Layout Tags */
.skills-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.skill-tag {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    color: #334155;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
}

/* Scrollbar Costumizations */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
}
.preview-section::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
}
.preview-section::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Print Specific Rules for PDF Generation */
@media print {
    body {
        background: none !important;
        background-color: white !important;
        overflow: visible;
        margin: 0;
        padding: 0;
    }
    
    .form-section {
        display: none !important;
    }
    
    .preview-section {
        padding: 0 !important;
        background: white !important;
        display: block !important;
        overflow: visible !important;
    }
    
    .resume-wrapper {
        box-shadow: none !important;
        padding: 0 !important;
        margin: 0 !important;
        border-radius: 0 !important;
        width: 100% !important;
        max-width: 100% !important;
        min-height: auto !important;
        animation: none !important;
    }

    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    .page-break-print {
        break-before: page;
        margin-top: 2rem;
    }
}

/* Responsive UI adjustments */
@media (max-width: 1024px) {
    .app-container {
        flex-direction: column;
        overflow-y: auto;
    }
    
    .form-section {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--glass-border);
    }
    
    .preview-section {
        padding: 2rem 1rem;
        overflow: visible;
    }
    
    .resume-wrapper {
        padding: 2rem;
    }
}