/* --- Root Variables (Shamba Direct Brand Colors) --- */
:root {
    --primary-green: #67B749;
    --primary-green-dark: #56a03d; /* Slightly darker for hover */
    --accent-light-gray: #D3D3D3;
    --text-dark: #333333;
    --text-medium: #4B4B4B;
    --bg-white: #FFFFFF;
    --border-color: #E0E0E0;
    --error-red: #E74C3C;
    --shadow-light: rgba(0, 0, 0, 0.08);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --transition-speed: 0.3s;
}

/* --- General Body and Container Styles --- */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-medium);
    background-color: var(--bg-white);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    position: relative;
    padding: 20px;
}

@media (max-width: 768px) {
    body {
        padding: 10px;
        align-items: flex-start;
        padding-top: 20px;
    }
}

/* Background grid lines */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(to right, rgba(103, 183, 73, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(103, 183, 73, 0.05) 1px, transparent 1px);
    background-size: 50px 50px; /* Adjust grid line density */
    z-index: -1;
}

/* --- Registration Container Layout --- */
.registration-container {
    display: flex;
    width: 100%;
    max-width: 1200px;
    background-color: var(--bg-white);
    border-radius: 15px;
    box-shadow: 0 10px 30px var(--shadow-medium);
    overflow: hidden;
    min-height: 600px;
    margin: 0;
    flex-direction: column;
}

@media (min-width: 768px) {
    .registration-container {
        flex-direction: row;
        width: 95%;
        margin: 20px 0;
        min-height: 700px;
    }
}

@media (min-width: 1024px) {
    .registration-container {
        width: 90%;
        margin: 40px 0;
    }
}

/* --- Left Logo Section --- */
.logo-section {
    background: linear-gradient(135deg, var(--primary-green-dark) 0%, var(--primary-green) 100%);
    color: var(--bg-white);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 200px;
}

@media (min-width: 768px) {
    .logo-section {
        flex: 1;
        padding: 30px;
        min-height: auto;
    }
}

.logo-section::before {
    content: '';
    position: absolute;
    top: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    transform: rotate(45deg);
}

.logo-section::after {
    content: '';
    position: absolute;
    bottom: -50px;
    right: -50px;
    width: 250px;
    height: 250px;
    background-color: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    transform: rotate(-30deg);
}


.shamba-direct-logo img {
    max-width: 120px;
    height: auto;
    margin-bottom: 15px;
    filter: drop-shadow(0 5px 10px rgba(0,0,0,0.2));
}

@media (min-width: 576px) {
    .shamba-direct-logo img {
        max-width: 150px;
        margin-bottom: 20px;
    }
}

@media (min-width: 768px) {
    .shamba-direct-logo img {
        max-width: 180px;
        margin-bottom: 25px;
    }
}

.logo-text h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

@media (min-width: 576px) {
    .logo-text h2 {
        font-size: 1.8rem;
        margin-bottom: 12px;
    }
}

@media (min-width: 768px) {
    .logo-text h2 {
        font-size: 2.2rem;
        margin-bottom: 15px;
    }
}

.logo-text p {
    font-size: 0.9rem;
    line-height: 1.6;
    max-width: 300px;
}

@media (min-width: 576px) {
    .logo-text p {
        font-size: 1rem;
        max-width: 320px;
    }
}

@media (min-width: 768px) {
    .logo-text p {
        font-size: 1.1rem;
        max-width: 350px;
    }
}

/* --- Main Registration Form Section --- */
.form-section {
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    flex: 1;
}

@media (min-width: 576px) {
    .form-section {
        padding: 30px;
    }
}

@media (min-width: 768px) {
    .form-section {
        flex: 2;
        padding: 40px;
        align-items: center;
    }
}

.form-card {
    width: 100%;
    max-width: 550px; /* Max width for the form within its section */
}

.form-card h2 {
    color: var(--text-dark);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-align: center;
}

@media (min-width: 576px) {
    .form-card h2 {
        font-size: 2rem;
    }
}

@media (min-width: 768px) {
    .form-card h2 {
        font-size: 2.2rem;
    }
}

.form-card .subtitle {
    font-size: 1rem;
    color: var(--text-medium);
    margin-bottom: 20px;
    text-align: center;
}

@media (min-width: 576px) {
    .form-card .subtitle {
        font-size: 1.05rem;
        margin-bottom: 25px;
    }
}

@media (min-width: 768px) {
    .form-card .subtitle {
        font-size: 1.1rem;
        margin-bottom: 30px;
    }
}

/* --- Progress Bar --- */
.progress-bar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    position: relative;
    width: 95%;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 576px) {
    .progress-bar-container {
        width: 90%;
        margin-bottom: 35px;
    }
}

@media (min-width: 768px) {
    .progress-bar-container {
        margin-bottom: 40px;
    }
}

.progress-step {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: var(--accent-light-gray);
    color: var(--bg-white);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    font-size: 0.8em;
    position: relative;
    z-index: 10;
    transition: background-color var(--transition-speed);
}

@media (min-width: 576px) {
    .progress-step {
        width: 32px;
        height: 32px;
        font-size: 0.85em;
    }
}

@media (min-width: 768px) {
    .progress-step {
        width: 35px;
        height: 35px;
        font-size: 0.9em;
    }
}

.progress-step::after {
    content: attr(data-step);
}

.progress-step.active {
    background-color: var(--primary-green);
}

.progress-step.completed {
    background-color: var(--primary-green);
}

.progress-line {
    position: absolute;
    width: calc(100% - 60px);
    height: 3px;
    background-color: var(--accent-light-gray);
    left: 30px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 5;
    border-radius: 2px;
}

@media (min-width: 576px) {
    .progress-line {
        width: calc(100% - 64px);
        left: 32px;
        height: 3.5px;
    }
}

@media (min-width: 768px) {
    .progress-line {
        width: calc(100% - 70px);
        left: 35px;
        height: 4px;
    }
}

.progress-line-fill {
    position: absolute;
    height: 3px;
    background-color: var(--primary-green);
    left: 30px;
    top: 50%;
    transform: translateY(-50%);
    z-index: 7;
    width: 0%;
    transition: width var(--transition-speed) ease-in-out;
    border-radius: 2px;
}

@media (min-width: 576px) {
    .progress-line-fill {
        left: 32px;
        height: 3.5px;
    }
}

@media (min-width: 768px) {
    .progress-line-fill {
        left: 35px;
        height: 4px;
    }
}

/* --- Form Steps --- */
.form-step {
    display: none; /* Hidden by default */
    animation: fadeIn 0.5s ease-out;
}

.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-step h3 {
    color: var(--text-dark);
    font-size: 1.3rem;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

@media (min-width: 576px) {
    .form-step h3 {
        font-size: 1.4rem;
        margin-bottom: 22px;
    }
}

@media (min-width: 768px) {
    .form-step h3 {
        font-size: 1.6rem;
        margin-bottom: 25px;
        padding-bottom: 10px;
    }
}

.form-group {
    margin-bottom: 15px;
}

@media (min-width: 576px) {
    .form-group {
        margin-bottom: 18px;
    }
}

@media (min-width: 768px) {
    .form-group {
        margin-bottom: 20px;
    }
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-weight: 500;
}

.form-group .required {
    color: var(--error-red);
    margin-left: 4px;
}

.form-group input:not([type="checkbox"]),
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1em;
    color: var(--text-dark);
    background-color: var(--bg-white);
    outline: none;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(103, 183, 73, 0.15);
}

/* Error messages */
.error-message {
    color: var(--error-red);
    font-size: 0.85em;
    margin-top: 5px;
    height: 18px; /* Reserve space to prevent layout shift */
    display: none; /* Hide by default */
}
.error-message.active {
    display: block;
}
input.invalid, select.invalid {
    border-color: var(--error-red) !important;
}


/* Specific input styles */
.input-with-unit {
    display: flex;
    gap: 10px;
}

.input-with-unit input {
    flex-grow: 1;
}

.input-with-unit select {
    width: 120px;
    flex-shrink: 0;
}

select[multiple] {
    height: auto;
    min-height: 100px;
    padding: 10px;
}
.form-group .hint {
    font-size: 0.8em;
    color: var(--text-light);
    margin-top: 5px;
}

/* Checkbox group */
.checkbox-group {
    display: flex;
    align-items: center;
    margin-top: 25px;
}

.checkbox-group input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 10px;
    cursor: pointer;
    accent-color: var(--primary-green); /* Styles the checkbox */
}

.checkbox-group label {
    margin-bottom: 0;
    display: flex;
    align-items: center;
    font-weight: 400;
    font-size: 0.95em;
}

.checkbox-group label a {
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 500;
}

.checkbox-group label a:hover {
    text-decoration: underline;
}


/* Form Navigation Buttons */
.form-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    gap: 15px;
}

.form-navigation button {
    flex: 1;
    padding: 14px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--transition-speed), transform 0.1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.prev-step-btn {
    background-color: var(--accent-light-gray);
    color: var(--text-dark);
}

.prev-step-btn:hover {
    background-color: #c0c0c0;
    transform: translateY(-2px);
}

.next-step-btn {
    background-color: var(--primary-green);
    color: var(--bg-white);
}

.next-step-btn:hover {
    background-color: var(--primary-green-dark);
    transform: translateY(-2px);
}

.submit-btn {
    background-color: var(--primary-green);
    color: var(--bg-white);
    width: 100%;
    padding: 15px 0;
    border: none;
    border-radius: 8px;
    font-size: 1.2em;
    font-weight: 700;
    cursor: pointer;
    transition: background-color var(--transition-speed), transform 0.1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.submit-btn:hover:not(:disabled) {
    background-color: var(--primary-green-dark);
    transform: translateY(-2px);
}

.submit-btn:disabled {
    background-color: #a0d88c; /* Lighter green when disabled */
    cursor: not-allowed;
}

/* Loading spinner for submit button */
.loading-spinner {
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid var(--bg-white);
    border-radius: 50%;
    width: 24px;
    height: 24px;
    animation: spin 1s linear infinite;
    margin-left: 10px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.submit-btn .btn-text {
    transition: opacity var(--transition-speed);
}
.submit-btn.loading .btn-text {
    opacity: 0;
}
.submit-btn.loading .loading-spinner {
    display: block !important; /* Override inline style */
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}


/* --- Placeholder for Uploads --- */
.placeholder-section {
    background-color: var(--bg-light);
    border: 2px dashed var(--accent-light-gray);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    margin-top: 30px;
    margin-bottom: 20px;
}

.placeholder-section h4 {
    color: var(--text-dark);
    margin-bottom: 10px;
}

.upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.upload-btn {
    background-color: var(--accent-light-gray);
    color: var(--text-dark);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: background-color var(--transition-speed);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.upload-btn:hover {
    background-color: #c0c0c0;
}

.upload-btn i {
    font-size: 1.2em;
}

#fileName {
    font-size: 0.9em;
    color: var(--text-light);
}


/* --- Mobile Responsiveness --- */
@media (max-width: 992px) {
    .registration-container {
        flex-direction: column; /* Stack logo and form vertically */
        width: 100%;
        max-width: 600px; /* Max width for stacked layout */
        min-height: auto;
        margin: 20px auto;
    }

    .logo-section {
        padding: 40px 20px;
        border-radius: 15px 15px 0 0; /* Keep top corners rounded */
    }

    .shamba-direct-logo img {
        max-width: 120px;
        margin-bottom: 15px;
    }

    .logo-text h2 {
        font-size: 1.8em;
    }

    .logo-text p {
        font-size: 1em;
        max-width: none;
    }

    .form-section {
        padding: 30px 20px;
        border-radius: 0 0 15px 15px; /* Keep bottom corners rounded */
    }

    .form-card h2 {
        font-size: 1.8em;
        margin-bottom: 5px;
    }

    .form-card .subtitle {
        font-size: 0.95em;
        margin-bottom: 25px;
    }

    .progress-bar-container {
        width: 100%; /* Make progress bar full width on mobile */
    }

    .form-navigation {
        flex-direction: column; /* Stack navigation buttons */
    }

    .form-navigation button {
        width: 100%;
        margin-bottom: 10px; /* Space between stacked buttons */
    }
}

@media (max-width: 576px) {
    body {
        padding: 10px; /* Reduce overall padding */
    }
    .registration-container {
        border-radius: 10px;
        margin: 10px auto;
    }
    .logo-section {
        padding: 30px 15px;
        border-radius: 10px 10px 0 0;
    }
    .shamba-direct-logo img {
        max-width: 100px;
    }
    .logo-text h2 {
        font-size: 1.5em;
    }
    .logo-text p {
        font-size: 0.9em;
    }
    .form-section {
        padding: 25px 15px;
        border-radius: 0 0 10px 10px;
    }
    .form-card h2 {
        font-size: 1.6em;
    }
    .form-step h3 {
        font-size: 1.4em;
        margin-bottom: 20px;
    }
    .form-group input:not([type="checkbox"]),
    .form-group select,
    .form-group textarea {
        padding: 10px 12px;
        font-size: 0.95em;
    }
    .progress-step {
        width: 30px;
        height: 30px;
        font-size: 0.8em;
    }
    .progress-line {
        width: calc(100% - 60px);
        left: 30px;
    }
    .upload-btn {
        padding: 8px 15px;
        font-size: 0.9em;
    }
}