/* Root Variables */
:root {
    --leaf-green: #4CAF50;
    --dark-green: #388E3C;
    --light-green: #66BB6A;
    --white: #FFFFFF;
    --black: #000000;
    --gray-light: #F5F5F5;
    --gray-medium: #E0E0E0;
    --gray-dark: #757575;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--gray-light);
    color: var(--black);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
}

/* Navbar */
.navbar {
    background-color: var(--leaf-green);
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 2px 4px var(--shadow);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo {
    font-size: 2rem;
}

.brand-name {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-links {
    display: flex;
    gap: 1rem;
}

.btn-link {
    color: var(--white);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.btn-link:hover {
    background-color: var(--dark-green);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

/* Language Selection Page */
.language-selection-page {
    background: linear-gradient(135deg, var(--leaf-green) 0%, var(--dark-green) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.language-container {
    background-color: var(--white);
    border-radius: 16px;
    padding: 3rem;
    max-width: 500px;
    width: 90%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.language-header {
    text-align: center;
    margin-bottom: 2rem;
}

.logo-large {
    font-size: 4rem;
    display: block;
    margin-bottom: 1rem;
}

.language-header h1 {
    color: var(--leaf-green);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--gray-dark);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.subtitle-bn {
    color: var(--gray-dark);
    font-size: 1rem;
    font-weight: 500;
}

.language-selection h2 {
    text-align: center;
    color: var(--black);
    margin-bottom: 2rem;
    font-size: 1.3rem;
}

.language-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.language-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--white);
    border: 2px solid var(--leaf-green);
    border-radius: 12px;
    text-decoration: none;
    color: var(--black);
    font-size: 1.2rem;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
}

.language-btn:hover {
    background-color: var(--leaf-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

.language-btn .flag {
    font-size: 2rem;
}

/* Header Section */
.header-section {
    text-align: center;
    padding: 2rem 0;
}

.header-section h1 {
    color: var(--leaf-green);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.header-section .subtitle {
    color: var(--gray-dark);
    font-size: 1.1rem;
}

/* Upload Section */
.upload-section {
    background-color: var(--white);
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 2px 8px var(--shadow);
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--black);
}

/* Image Upload */
.image-upload-wrapper {
    position: relative;
}

.image-upload-wrapper input[type="file"] {
    display: none;
}

.upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    border: 3px dashed var(--leaf-green);
    border-radius: 12px;
    background-color: var(--gray-light);
    cursor: pointer;
    transition: all 0.3s;
}

.upload-label:hover {
    background-color: var(--white);
    border-color: var(--dark-green);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.upload-text {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--leaf-green);
    margin-bottom: 0.5rem;
}

.upload-subtext {
    font-size: 0.9rem;
    color: var(--gray-dark);
}

/* Image Preview */
.image-preview {
    position: relative;
    margin-top: 1rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px var(--shadow);
}

.image-preview img {
    width: 100%;
    height: auto;
    display: block;
}

.btn-remove {
    position: absolute;
    top: 10px;
    right: 10px;
    background-color: rgba(255, 0, 0, 0.8);
    color: var(--white);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s;
}

.btn-remove:hover {
    background-color: rgba(200, 0, 0, 1);
}

/* Select Input */
select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--gray-medium);
    border-radius: 8px;
    font-size: 1rem;
    background-color: var(--white);
    color: var(--black);
    cursor: pointer;
    transition: border-color 0.3s;
}

select:focus {
    outline: none;
    border-color: var(--leaf-green);
}

/* Buttons */
.btn-primary {
    width: 100%;
    padding: 1rem;
    background-color: var(--leaf-green);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
    text-align: center;
}

.btn-primary:hover {
    background-color: var(--dark-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-hover);
}

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

.btn-primary:disabled {
    background-color: var(--gray-medium);
    cursor: not-allowed;
    transform: none;
}

/* Loader */
.loader {
    width: 20px;
    height: 20px;
    border: 3px solid var(--white);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-error {
    background-color: #FFEBEE;
    color: #C62828;
    border-left: 4px solid #C62828;
}

.alert-success {
    background-color: #E8F5E9;
    color: #2E7D32;
    border-left: 4px solid #2E7D32;
}

/* Results Page */
.results-header {
    text-align: center;
    padding: 2rem 0;
}

.results-header h1 {
    color: var(--leaf-green);
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.location-info {
    color: var(--gray-dark);
    font-size: 1.1rem;
}

.results-container {
    max-width: 900px;
    margin: 0 auto;
}

.result-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 8px var(--shadow);
}

.result-card.highlight {
    border: 2px solid var(--leaf-green);
}

.result-card.solutions {
    background-color: var(--leaf-green);
    color: var(--white);
}

.card-title {
    color: var(--leaf-green);
    font-size: 1.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--gray-medium);
}

.result-card.solutions .card-title {
    color: var(--white);
    border-bottom-color: rgba(255, 255, 255, 0.3);
}

.card-content {
    color: var(--black);
}

.result-card.solutions .card-content {
    color: var(--white);
}

.info-row {
    display: flex;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--gray-light);
}

.info-row:last-child {
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    min-width: 150px;
    color: var(--gray-dark);
}

.result-card.solutions .info-label {
    color: rgba(255, 255, 255, 0.9);
}

.info-value {
    flex: 1;
    color: var(--black);
}

.result-card.solutions .info-value {
    color: var(--white);
}

.info-block {
    margin-bottom: 1.5rem;
}

.info-block:last-child {
    margin-bottom: 0;
}

.info-block .info-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-dark);
}

.result-card.solutions .info-block .info-label {
    color: rgba(255, 255, 255, 0.9);
}

.info-text {
    line-height: 1.8;
    color: var(--black);
}

.result-card.solutions .info-text {
    color: var(--white);
}

.error-box {
    background-color: #FFEBEE;
    border: 2px solid #C62828;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    max-width: 600px;
    margin: 2rem auto;
}

.error-box h2 {
    color: #C62828;
    margin-bottom: 1rem;
}

.error-box p {
    color: #B71C1C;
}

.action-buttons {
    text-align: center;
    margin: 2rem 0;
}

.action-buttons .btn-primary {
    max-width: 300px;
    margin: 0 auto;
}

/* Footer */
footer {
    background-color: var(--leaf-green);
    color: var(--white);
    text-align: center;
    padding: 1.5rem 0;
    margin-top: 3rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0.5rem;
    }

    .navbar {
        padding: 0.75rem 0;
    }

    .brand-name {
        font-size: 1.2rem;
    }

    .logo {
        font-size: 1.5rem;
    }

    .header-section h1 {
        font-size: 2rem;
    }

    .header-section .subtitle {
        font-size: 1rem;
    }

    .upload-section {
        padding: 1.5rem;
    }

    .language-container {
        padding: 2rem;
    }

    .language-header h1 {
        font-size: 2rem;
    }

    .logo-large {
        font-size: 3rem;
    }

    .language-btn {
        padding: 1.25rem;
        font-size: 1.1rem;
    }

    .results-header h1 {
        font-size: 2rem;
    }

    .card-title {
        font-size: 1.3rem;
    }

    .info-row {
        flex-direction: column;
        gap: 0.25rem;
    }

    .info-label {
        min-width: auto;
    }

    .result-card {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .header-section h1 {
        font-size: 1.5rem;
    }

    .upload-label {
        padding: 2rem 1rem;
    }

    .upload-icon {
        font-size: 2.5rem;
    }

    .btn-primary {
        padding: 0.875rem;
        font-size: 1rem;
    }

    .language-btn {
        padding: 1rem;
        font-size: 1rem;
    }

    .language-btn .flag {
        font-size: 1.5rem;
    }
}