/* GridFlow Nepal - Styles */

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

* {
    margin: 0;
    padding: 0;
}

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

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #2C3E50;
    background-color: #F8F9FA;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* CSS Variables */
:root {
    --color-primary-green: #2ECC71;
    --color-primary-blue: #3498DB;
    --color-accent-orange: #E67E22;
    --color-dark-text: #2C3E50;
    --color-light-text: #7F8C8D;
    --color-background: #F8F9FA;
    --color-white: #FFFFFF;
    --color-success: #27AE60;
    --color-error: #E74C3C;
    --color-warning: #F39C12;
    
    --gradient-primary: linear-gradient(135deg, var(--color-primary-green) 0%, var(--color-primary-blue) 100%);
    --gradient-secondary: linear-gradient(135deg, var(--color-primary-blue) 0%, #9B59B6 100%);
    
    --container-max-width: 1000px;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-dark-text);
    color: var(--color-white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--border-radius);
    z-index: 9999;
    transition: var(--transition);
}

.skip-link:focus {
    top: 6px;
}

/* Container */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    line-height: 1.2;
    margin-bottom: 1rem;
    font-weight: 600;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--color-dark-text);
}

.section-subtitle {
    font-size: 1.125rem;
    text-align: center;
    color: var(--color-light-text);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn:focus-visible {
    outline: 2px solid var(--color-primary-blue);
    outline-offset: 2px;
}

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

.btn--primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

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

.btn--large {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

/* Button Spinner */
.btn-spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
}

.btn--loading .btn-text {
    opacity: 0.7;
}

.btn--loading .btn-spinner {
    display: block;
}

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

/* Header */
.header {
    background: var(--gradient-primary);
    color: var(--color-white);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--box-shadow);
}

.nav {
    padding: 1rem 0;
}

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

.nav__brand {
    flex: 1;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0;
    background: linear-gradient(45deg, #fff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: 0.875rem;
    opacity: 0.9;
    margin-bottom: 0;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.nav__toggle span {
    width: 25px;
    height: 3px;
    background: var(--color-white);
    margin: 3px 0;
    transition: var(--transition);
}

.nav__menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav__menu a {
    color: var(--color-white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    padding: 0.5rem 0;
    position: relative;
}

.nav__menu a:hover,
.nav__menu a:focus {
    opacity: 0.8;
}

.nav__menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-white);
    transition: var(--transition);
}

.nav__menu a:hover::after,
.nav__menu a:focus::after {
    width: 100%;
}

.nav__call {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem !important;
    border-radius: var(--border-radius);
    backdrop-filter: blur(10px);
}

.nav__call:hover {
    background: rgba(255, 255, 255, 0.3);
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    background: var(--color-white);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero__title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-dark-text);
}

.hero__subtitle {
    font-size: 1.25rem;
    color: var(--color-light-text);
    margin-bottom: 2rem;
}

.hero__cta {
    font-size: 1.125rem;
    padding: 1rem 2rem;
}

/* EV Charging Station Illustration */
.hero__illustration {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 300px;
}

.charging-station {
    position: relative;
    width: 200px;
    height: 250px;
}

.station-pole {
    width: 20px;
    height: 200px;
    background: linear-gradient(180deg, var(--color-primary-green), var(--color-primary-blue));
    border-radius: 10px;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: var(--box-shadow);
}

.station-screen {
    width: 60px;
    height: 80px;
    background: var(--color-dark-text);
    border-radius: var(--border-radius);
    position: absolute;
    top: 30px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: var(--box-shadow);
}

.station-screen::after {
    content: '';
    width: 50px;
    height: 60px;
    background: var(--color-primary-green);
    border-radius: 4px;
    position: absolute;
    top: 10px;
    left: 5px;
    opacity: 0.8;
}

.station-cable {
    width: 8px;
    height: 60px;
    background: var(--color-dark-text);
    border-radius: 4px;
    position: absolute;
    top: 80px;
    right: 20px;
    transform: rotate(15deg);
}

.car {
    width: 80px;
    height: 40px;
    background: var(--color-accent-orange);
    border-radius: 20px;
    position: absolute;
    bottom: 0;
    right: 0;
    box-shadow: var(--box-shadow);
}

.car::before {
    content: '';
    width: 15px;
    height: 15px;
    background: var(--color-dark-text);
    border-radius: 50%;
    position: absolute;
    bottom: -7px;
    left: 10px;
}

.car::after {
    content: '';
    width: 15px;
    height: 15px;
    background: var(--color-dark-text);
    border-radius: 50%;
    position: absolute;
    bottom: -7px;
    right: 10px;
}

/* Benefits Section */
.benefits {
    padding: 4rem 0;
    background: var(--gradient-primary);
    color: var(--color-white);
}

.benefits .section-title {
    color: var(--color-white);
}

.benefits__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.benefit-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.benefit-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.benefit-card__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.benefit-card__title {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--color-white);
}

.benefit-card__description {
    color: rgba(255, 255, 255, 0.9);
}

/* Locations Section */
.locations {
    padding: 4rem 0;
    background: var(--color-white);
}

.locations__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.location-group__title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--color-dark-text);
}

.location-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag {
    background: var(--gradient-primary);
    color: var(--color-white);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.locations__info {
    background: var(--color-background);
    padding: 2rem;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--color-primary-green);
}

.locations__info p {
    margin-bottom: 0.5rem;
}

.locations__info p:last-child {
    margin-bottom: 0;
}

/* Contact Form Section */
.contact-section {
    padding: 4rem 0;
    background: var(--color-background);
}

.form-container {
    max-width: 800px;
    margin: 0 auto;
    background: var(--color-white);
    padding: 3rem;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.partner-form {
    margin-top: 2rem;
}

.form-section {
    border: none;
    margin-bottom: 2rem;
}

.form-section legend {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-dark-text);
    margin-bottom: 1.5rem;
    padding: 0;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-dark-text);
}

.required {
    color: var(--color-error);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #E1E8ED;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--color-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary-blue);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
    border-color: var(--color-error);
}

.form-group input.success,
.form-group select.success,
.form-group textarea.success {
    border-color: var(--color-success);
}

.help-text {
    font-size: 0.875rem;
    color: var(--color-light-text);
    margin-top: 0.25rem;
}

.error-text {
    font-size: 0.875rem;
    color: var(--color-error);
    margin-top: 0.25rem;
    min-height: 1.2rem;
}

.char-count {
    font-size: 0.875rem;
    color: var(--color-light-text);
    text-align: right;
    margin-top: 0.25rem;
}

.form-submit {
    width: 100%;
    margin-top: 1rem;
}

/* Message Styles */
.message {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: none;
}

.message.success {
    background: #D4EDDA;
    color: #155724;
    border: 1px solid #C3E6CB;
    display: block;
}

.message.error {
    background: #F8D7DA;
    color: #721C24;
    border: 1px solid #F5C6CB;
    display: block;
}

/* FAQ Section */
.faq {
    padding: 4rem 0;
    background: var(--color-white);
}

.faq__list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid #E1E8ED;
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-item__question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    background: none;
    border: none;
    font-size: 1.125rem;
    font-weight: 500;
    text-align: left;
    color: var(--color-dark-text);
    cursor: pointer;
    transition: var(--transition);
}

.faq-item__question:hover {
    color: var(--color-primary-blue);
}

.faq-item__question:focus-visible {
    outline: 2px solid var(--color-primary-blue);
    outline-offset: 2px;
}

.faq-item__icon {
    font-size: 1.5rem;
    font-weight: 300;
    transition: var(--transition);
}

.faq-item__question[aria-expanded="true"] .faq-item__icon {
    transform: rotate(45deg);
}

.faq-item__answer {
    padding-bottom: 1.5rem;
    color: var(--color-light-text);
    overflow: hidden;
    max-height: 0;
    padding-bottom: 0;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item__answer.show {
    max-height: 200px;
    padding-bottom: 1.5rem;
}

.faq-item__answer[aria-hidden="false"] {
    max-height: 200px;
    padding-bottom: 1.5rem;
}

/* Contact Info Section */
.contact-info {
    padding: 4rem 0;
    background: var(--gradient-secondary);
    color: var(--color-white);
}

.contact-info .section-title,
.contact-info .section-subtitle {
    color: var(--color-white);
}

.contact-methods {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-method {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-method:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.contact-method__icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.contact-method__title {
    color: var(--color-white);
    margin-bottom: 1rem;
}

.contact-method__link {
    color: var(--color-primary-green);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.125rem;
    transition: var(--transition);
}

.contact-method__link:hover,
.contact-method__link:focus {
    color: var(--color-white);
    text-decoration: underline;
}

/* Footer */
.footer {
    background: #1A252F;
    color: var(--color-white);
    padding: 2rem 0;
    text-align: center;
}

.footer__hashtags {
    margin-bottom: 1rem;
}

.hashtag {
    color: var(--color-primary-green);
    margin: 0 0.5rem;
    font-weight: 500;
}

.footer__copyright {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    /* Navigation */
    .nav__toggle {
        display: flex;
    }
    
    .nav__menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--gradient-primary);
        flex-direction: column;
        padding: 1rem;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        box-shadow: var(--box-shadow);
    }
    
    .nav__menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav__toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .nav__toggle.active span:nth-child(2) {
        opacity: 0;
    }
    
    .nav__toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    /* Hero */
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero__title {
        font-size: 2.5rem;
    }
    
    .hero__illustration {
        order: -1;
        height: 200px;
    }
    
    .charging-station {
        transform: scale(0.8);
    }
    
    /* Sections */
    .section-title {
        font-size: 2rem;
    }
    
    /* Locations */
    .locations__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    /* Benefits */
    .benefits__grid {
        grid-template-columns: 1fr;
    }
    
    /* Contact Methods */
    .contact-methods {
        grid-template-columns: 1fr;
    }
    
    /* Form */
    .form-container {
        padding: 2rem 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 0.75rem;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .form-container {
        margin: 0 0.5rem;
    }
}

/* Print Styles */
@media print {
    .header,
    .nav__toggle,
    .hero__illustration,
    .contact-info,
    .footer {
        display: none;
    }
    
    .hero,
    .benefits,
    .locations,
    .contact-section,
    .faq {
        page-break-inside: avoid;
        break-inside: avoid;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: #000;
        background: #fff;
    }
    
    .section-title {
        font-size: 18pt;
        margin-bottom: 0.5rem;
    }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --color-primary-green: #007F3F;
        --color-primary-blue: #0066CC;
        --color-dark-text: #000000;
        --color-light-text: #333333;
    }
    
    .btn--primary {
        border: 2px solid var(--color-dark-text);
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        border-width: 2px;
    }
}