/* --- Base & Variables --- */
:root {
    --color-primary: #6C63FF;
    --color-secondary: #FF6584;
    --font-family-headings: 'Poppins', sans-serif;
    --font-family-body: 'Roboto', sans-serif;
    --base-spacing: 1rem;
    --border-radius: 0.5rem;

    /* Light Mode */
    --bg-color: #F8F9FA;
    --surface-color: #FFFFFF;
    --text-color: #212529;
    --subtle-text-color: #6c757d;
    --border-color: #E0E0E0;

    --gradient: linear-gradient(45deg, var(--color-primary), var(--color-secondary));
}

[data-theme="dark"] {
    --bg-color: #121212;
    --surface-color: #1E1E1E;
    --text-color: #E0E0E0;
    --subtle-text-color: #adb5bd;
    --border-color: #333;
}

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

body {
    font-family: var(--font-family-body);
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 calc(var(--base-spacing) * 1.5);
}

h1, h2, h3 {
    font-family: var(--font-family-headings);
    font-weight: 600;
    color: var(--text-color);
}

h1 { font-size: 3rem; line-height: 1.2; }
h2 { font-size: 2.25rem; margin-bottom: var(--base-spacing); }
h3 { font-size: 1.5rem; }

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}
a:hover { color: var(--color-secondary); }

/* --- Header --- */
.header {
    background-color: var(--surface-color);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    padding: var(--base-spacing) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: background-color 0.3s;
}
[data-theme="dark"] .header { box-shadow: 0 2px 4px rgba(0,0,0,0.2); }

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-family-headings);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
}
.logo:hover { color: var(--color-primary); }

.main-nav {
    display: flex;
    gap: calc(var(--base-spacing) * 1.5);
}
.main-nav a {
    font-weight: 500;
    color: var(--text-color);
}
.main-nav a.login-btn {
    background: var(--gradient);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--base-spacing);
}

/* --- Language Switcher --- */
.language-switcher {
    position: relative;
    cursor: pointer;
}
.selected-lang {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}
.selected-lang img {
    width: 20px;
    height: 15px;
    object-fit: cover;
    border-radius: 2px;
}
.selected-lang span {
    font-weight: 500;
}
.icon-sm {
    width: 16px;
    height: 16px;
}
.lang-dropdown {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 0.5rem;
    margin-top: 0.5rem;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    min-width: 120px;
}
.language-switcher:hover .lang-dropdown {
    display: block;
}
.lang-dropdown a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: calc(var(--border-radius) / 2);
}
.lang-dropdown a:hover, .lang-dropdown a.active {
    background-color: var(--bg-color);
}
.lang-dropdown a img {
    width: 20px;
    height: 15px;
    object-fit: cover;
    border-radius: 2px;
}

/* --- Theme Switch --- */
.theme-switch-wrapper { display: flex; align-items: center; }
.theme-switch { position: relative; display: inline-block; width: 50px; height: 26px; }
.theme-switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 3px; bottom: 3px; background-color: white; transition: .4s; }
input:checked + .slider { background-color: var(--color-primary); }
input:focus + .slider { box-shadow: 0 0 1px var(--color-primary); }
input:checked + .slider:before { transform: translateX(24px); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

/* --- Hero Section --- */
.hero {
    text-align: center;
    padding: calc(var(--base-spacing) * 5) 0;
    background: var(--gradient);
    color: white;
}
.hero h1 { color: white; }
.hero p {
    font-size: 1.25rem;
    margin: var(--base-spacing) 0 calc(var(--base-spacing) * 2);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    opacity: 0.9;
}
.cta-button {
    background: white;
    color: var(--color-primary);
    padding: 0.8rem 2.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-family: var(--font-family-headings);
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.2s, box-shadow 0.2s;
}
.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
    color: var(--color-primary);
}

/* --- How It Works Section --- */
.how-it-works {
    padding: calc(var(--base-spacing) * 4) 0;
    text-align: center;
}
.steps {
    display: flex;
    justify-content: space-around;
    gap: calc(var(--base-spacing) * 2);
    margin-top: calc(var(--base-spacing) * 2);
}
.step {
    max-width: 300px;
}
.step-icon {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: var(--gradient);
    color: white;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--base-spacing);
}
.step-icon i {
    width: 32px;
    height: 32px;
}
.step h3 { margin-bottom: 0.5rem; }
.step p { color: var(--subtle-text-color); }

/* --- Generator Section --- */
.generator-section {
    padding: calc(var(--base-spacing) * 4) 0;
    background-color: var(--surface-color);
    transition: background-color 0.3s;
}
.generator-section h2 {
    text-align: center;
    margin-bottom: calc(var(--base-spacing) * 2);
}
.generator-form {
    max-width: 1000px;
    margin: 0 auto;
}
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: calc(var(--base-spacing) * 2);
}
.form-column-wide {
    grid-column: 1 / -1;
}
.form-group {
    margin-bottom: var(--base-spacing);
}
.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
}
.form-group input[type="text"],
.form-group input[type="number"],
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family-body);
    font-size: 1rem;
    transition: border-color 0.2s, background-color 0.3s;
}
.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
}
.photo-upload-container .upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: calc(var(--base-spacing) * 2);
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s;
}
.photo-upload-container .upload-area:hover {
    border-color: var(--color-primary);
}
.upload-area i {
    width: 48px;
    height: 48px;
    color: var(--subtle-text-color);
    margin-bottom: var(--base-spacing);
}
.photo-preview {
    display: flex;
    gap: var(--base-spacing);
    margin-top: var(--base-spacing);
    flex-wrap: wrap;
}
.preview-item {
    position: relative;
    width: 100px;
    height: 100px;
}
.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--border-radius);
}
.remove-img-btn {
    position: absolute;
    top: -5px;
    right: -5px;
    background: rgba(0,0,0,0.7);
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: bold;
}
.form-submit-group {
    text-align: center;
    margin-top: calc(var(--base-spacing) * 2);
}
.form-submit-group .cta-button {
    background: var(--gradient);
    color: white;
    border: none;
    cursor: pointer;
}
.form-submit-group .cta-button:hover {
    color: white;
}


/* --- Footer --- */
.footer {
    background-color: var(--surface-color);
    text-align: center;
    padding: calc(var(--base-spacing) * 2) 0;
    margin-top: calc(var(--base-spacing) * 3);
    border-top: 1px solid var(--border-color);
    color: var(--subtle-text-color);
    transition: background-color 0.3s, border-color 0.3s;
}

/* --- Result & Error Styles --- */
.result-container {
    margin-top: calc(var(--base-spacing) * 3);
    padding: calc(var(--base-spacing) * 2);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--bg-color);
}

.result-container h3 {
    text-align: center;
    margin-bottom: calc(var(--base-spacing) * 1.5);
}

.result-item {
    margin-bottom: var(--base-spacing);
}

.result-item label {
    font-weight: 600;
    font-family: var(--font-family-headings);
    display: block;
    margin-bottom: 0.25rem;
    color: var(--color-primary);
}

.result-item p {
    background-color: var(--surface-color);
    padding: var(--base-spacing);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.result-actions {
    margin-top: calc(var(--base-spacing) * 1.5);
    display: flex;
    justify-content: flex-end;
    gap: var(--base-spacing);
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-family: var(--font-family-headings);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: opacity 0.2s;
}
.btn:hover { opacity: 0.85; }

.btn-primary {
    background: var(--gradient);
    color: white;
}

.btn-secondary {
    background-color: var(--surface-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

.error-message {
    margin-top: calc(var(--base-spacing) * 2);
    padding: var(--base-spacing);
    background-color: #ffcccc;
    color: #990000;
    border: 1px solid #ff9999;
    border-radius: var(--border-radius);
    text-align: center;
}

[data-theme="dark"] .error-message {
    background-color: #4d0000;
    color: #ffc2c2;
    border-color: #800000;
}

/* --- History Page --- */
.page-title {
    text-align: center;
    margin: calc(var(--base-spacing) * 2) 0;
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: calc(var(--base-spacing) * 1.5);
}

.history-item .card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-color);
    font-size: 0.9rem;
    color: var(--subtle-text-color);
}

.history-item .card-body {
    background-color: var(--surface-color);
}

.card {
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden; /* Ensures children conform to border radius */
}

.card-body {
    padding: calc(var(--base-spacing) * 1.5);
}

.card-header {
    padding: var(--base-spacing) calc(var(--base-spacing) * 1.5);
    border-bottom: 1px solid var(--border-color);
}

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

/* --- Pricing Page --- */
.pricing-card-title {
    font-size: 2.5rem;
    font-weight: 700;
}

.pricing-card-title small {
    font-size: 1rem;
    font-weight: 400;
}

.card-header h4 {
    font-weight: 600;
}

.list-unstyled {
    padding-left: 0;
    list-style: none;
}

.btn-group .btn {
    border-radius: var(--border-radius);
}

.btn-group .btn:not(:last-child) {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.btn-group .btn:not(:first-child) {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* --- FAQ Page --- */
.accordion-button {
    font-weight: 600;
    font-family: var(--font-family-headings);
    background-color: var(--surface-color);
    color: var(--text-color);
}

.accordion-button:not(.collapsed) {
    background-color: var(--bg-color);
    color: var(--color-primary);
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(108, 99, 255, 0.25);
}

.accordion-item {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
}

.accordion-body {
    background-color: var(--bg-color);
}

/* --- Terms Page --- */
.terms-content h4 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}