/* ============================================
   NSI Customer Service Portal - cs.nsi.edu.np
   Aligned with nsi.edu.np branding
   ============================================ */

/* ---------- CSS Reset & Base ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-green: #007a3e;
    --light-green: #80c243;
    --dark-forest: #0e231a;
    --blue-accent: #20517e;
    --gold: #b7852c;
    --white: #ffffff;
    --off-white: #f1f4f1;
    --sage: #d8e5d8;
    --text-dark: #333333;
    --text-light: #666666;
    --border: #d8e5d8;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 30px rgba(0, 122, 62, 0.15);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Neufile Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--off-white);
    color: var(--text-dark);
    line-height: 1.7;
    font-size: 16px;
    font-weight: 400;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Albra', 'Neufile Grotesk', Georgia, 'Times New Roman', serif;
    font-weight: 700;
    color: var(--primary-green);
    line-height: 1.3;
}

a {
    text-decoration: none;
    color: var(--primary-green);
    transition: var(--transition);
}

a:hover {
    color: var(--blue-accent);
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- Top Bar ---------- */
.top-bar {
    background-color: var(--dark-forest);
    color: var(--white);
    padding: 10px 0;
    font-size: 13px;
}

.top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.top-bar-links {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.top-bar-links a {
    color: #b0cbbd;
    font-size: 13px;
}

.top-bar-links a:hover {
    color: var(--white);
}

.back-to-nsi {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--primary-green);
    color: var(--white);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
}

.back-to-nsi:hover {
    background-color: var(--light-green);
    color: var(--dark-forest);
}

.back-to-nsi svg {
    width: 14px;
    height: 14px;
}

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

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.cs-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cs-logo-text {
    font-family: 'Albra', Georgia, serif;
    font-size: 22px;
    font-weight: 700;
    color: var(--primary-green);
    letter-spacing: -0.5px;
}

.cs-logo-badge {
    background-color: var(--primary-green);
    color: var(--white);
    font-size: 11px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

nav ul {
    display: flex;
    gap: 4px;
}

nav ul li a {
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 15px;
    color: var(--text-dark);
    transition: var(--transition);
}

nav ul li a:hover,
nav ul li a.active {
    background-color: var(--off-white);
    color: var(--primary-green);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--primary-green);
    margin: 5px 0;
    border-radius: 2px;
    transition: var(--transition);
}

/* ---------- Hero Section ---------- */
.hero {
    background: linear-gradient(135deg, #f1f4f1 0%, #e2ede2 100%);
    padding: 70px 0 80px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(128, 194, 67, 0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -40%;
    left: -15%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 122, 62, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-icon {
    width: 70px;
    height: 70px;
    background-color: var(--primary-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    box-shadow: 0 8px 25px rgba(0, 122, 62, 0.25);
}

.hero-icon svg {
    width: 36px;
    height: 36px;
    fill: var(--white);
}

.hero h1 {
    font-size: 40px;
    color: var(--primary-green);
    margin-bottom: 16px;
}

.hero p {
    font-size: 18px;
    color: var(--text-light);
    max-width: 650px;
    margin: 0 auto 32px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-family: inherit;
    letter-spacing: 0.3px;
}

.btn-primary {
    background-color: var(--primary-green);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 122, 62, 0.3);
}

.btn-primary:hover {
    background-color: #005c30;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 122, 62, 0.35);
    color: var(--white);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-green);
    border: 2px solid var(--primary-green);
}

.btn-outline:hover {
    background-color: var(--primary-green);
    color: var(--white);
    transform: translateY(-2px);
}

/* ---------- Quick Actions ---------- */
.section-title {
    text-align: center;
    margin-bottom: 48px;
}

.section-title h2 {
    font-size: 32px;
    margin-bottom: 12px;
}

.section-title p {
    color: var(--text-light);
    font-size: 16px;
    max-width: 550px;
    margin: 0 auto;
}

.quick-actions {
    padding: 80px 0;
    background-color: var(--white);
}

.actions-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.action-card {
    background-color: var(--off-white);
    border-radius: 16px;
    padding: 36px 24px;
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
}

.action-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-green);
    background-color: var(--white);
}

.action-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(0, 122, 62, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
}

.action-icon svg {
    width: 28px;
    height: 28px;
    fill: var(--primary-green);
}

.action-card h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--primary-green);
}

.action-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
}

/* ---------- Contact Section ---------- */
.contact-section {
    padding: 80px 0;
    background-color: var(--off-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.contact-info {
    padding-right: 16px;
}

.contact-info h2 {
    font-size: 30px;
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--text-light);
    margin-bottom: 32px;
    line-height: 1.7;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 24px;
    padding: 20px;
    background-color: var(--white);
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.info-item:hover {
    border-color: var(--primary-green);
    box-shadow: var(--shadow);
}

.info-icon {
    width: 44px;
    height: 44px;
    min-width: 44px;
    background-color: rgba(0, 122, 62, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.info-icon svg {
    width: 20px;
    height: 20px;
    fill: var(--primary-green);
}

.info-item h4 {
    font-family: 'Neufile Grotesk', sans-serif;
    font-size: 14px;
    color: var(--text-light);
    font-weight: 600;
    margin-bottom: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.info-item p,
.info-item a {
    color: var(--text-dark);
    font-size: 15px;
    line-height: 1.5;
}

.contact-form {
    background-color: var(--white);
    padding: 36px;
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.contact-form h3 {
    font-size: 22px;
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    font-family: inherit;
    transition: var(--transition);
    background-color: var(--off-white);
    color: var(--text-dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-green);
    background-color: var(--white);
    box-shadow: 0 0 0 4px rgba(0, 122, 62, 0.08);
}

.form-group textarea {
    min-height: 130px;
    resize: vertical;
}

.submit-btn {
    width: 100%;
    justify-content: center;
    font-size: 16px;
    padding: 16px;
}

.alert {
    padding: 14px 18px;
    border-radius: 10px;
    margin-bottom: 20px;
    font-size: 14px;
    display: none;
}

.alert-success {
    background-color: #e6f4ea;
    color: #1e7e34;
    border: 1px solid #b7dfb8;
}

.alert-error {
    background-color: #fdecec;
    color: #c0392b;
    border: 1px solid #f5c6cb;
}

/* ---------- FAQ Section ---------- */
.faq-section {
    padding: 80px 0;
    background-color: var(--white);
}

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

.faq-item {
    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 12px;
    background-color: var(--off-white);
    transition: var(--transition);
    overflow: hidden;
}

.faq-item:hover,
.faq-item.active {
    border-color: var(--primary-green);
    box-shadow: var(--shadow);
}

.faq-question {
    padding: 20px 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-weight: 600;
    font-size: 16px;
    color: var(--text-dark);
    user-select: none;
    gap: 16px;
}

.faq-question:hover {
    color: var(--primary-green);
}

.faq-arrow {
    width: 24px;
    height: 24px;
    min-width: 24px;
    transition: var(--transition);
    fill: var(--primary-green);
}

.faq-item.active .faq-arrow {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer-inner {
    padding: 0 24px 20px;
    color: var(--text-light);
    line-height: 1.7;
    font-size: 15px;
}

.faq-item.active .faq-answer {
    max-height: 400px;
}

/* ---------- Ticket Section ---------- */
.ticket-section {
    padding: 80px 0;
    background-color: var(--off-white);
}

.ticket-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    padding: 40px;
}

.ticket-wrapper h2 {
    text-align: center;
    margin-bottom: 8px;
}

.ticket-wrapper > p {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 32px;
}

.ticket-id-display {
    background-color: #e6f4ea;
    border: 2px solid #b7dfb8;
    border-radius: 10px;
    padding: 16px;
    text-align: center;
    margin-bottom: 24px;
    display: none;
}

.ticket-id-display strong {
    color: var(--primary-green);
    font-size: 18px;
}

/* ---------- Chat Section ---------- */
.chat-section {
    padding: 0 0 80px;
    background-color: var(--off-white);
}

.chat-widget {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--white);
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    overflow: hidden;
}

.chat-header {
    background-color: var(--primary-green);
    color: var(--white);
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-header h3 {
    color: var(--white);
    font-size: 18px;
    margin: 0;
}

.chat-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}

.chat-status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--light-green);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}

.chat-messages {
    height: 350px;
    overflow-y: auto;
    padding: 20px;
    background-color: var(--off-white);
}

.chat-message {
    margin-bottom: 16px;
    display: flex;
    gap: 10px;
}

.chat-message.user {
    flex-direction: row-reverse;
}

.chat-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--sage);
    min-width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-green);
}

.chat-message.user .chat-avatar {
    background-color: var(--primary-green);
    color: var(--white);
}

.chat-bubble {
    background-color: var(--white);
    padding: 12px 16px;
    border-radius: 14px;
    border-top-left-radius: 4px;
    max-width: 75%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.06);
    line-height: 1.5;
    font-size: 14px;
}

.chat-message.user .chat-bubble {
    background-color: var(--primary-green);
    color: var(--white);
    border-radius: 14px;
    border-top-right-radius: 4px;
}

.chat-input-area {
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 12px;
    background-color: var(--white);
}

.chat-input-area input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 24px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.chat-input-area input:focus {
    border-color: var(--primary-green);
}

.chat-send-btn {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--primary-green);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.chat-send-btn:hover {
    background-color: #005c30;
}

.chat-send-btn svg {
    width: 18px;
    height: 18px;
    fill: var(--white);
}

/* ---------- Footer ---------- */
footer {
    background-color: var(--dark-forest);
    color: #b0cbbd;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .footer-logo-text {
    font-family: 'Albra', Georgia, serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
    display: inline-block;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 16px;
    color: #b0cbbd;
}

.footer-address {
    font-size: 14px;
    line-height: 1.8;
    color: #b0cbbd;
}

.footer-address strong {
    color: var(--white);
}

.footer-col h4 {
    color: var(--white);
    font-size: 15px;
    margin-bottom: 18px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-family: 'Neufile Grotesk', sans-serif;
    font-weight: 700;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #b0cbbd;
    font-size: 14px;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: var(--light-green);
    padding-left: 6px;
}

.footer-bottom {
    border-top: 1px solid rgba(176, 203, 189, 0.2);
    padding-top: 24px;
    text-align: center;
    font-size: 13px;
    color: #b0cbbd;
}

.footer-bottom a {
    color: var(--light-green);
}

/* ---------- Mobile Menu ---------- */
@media (max-width: 968px) {
    .actions-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        background-color: var(--white);
        box-shadow: -4px 0 30px rgba(0,0,0,0.15);
        transition: right 0.3s ease;
        padding: 80px 24px 24px;
        z-index: 999;
    }

    nav.open {
        right: 0;
    }

    nav ul {
        flex-direction: column;
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-overlay {
        display: none;
        position: fixed;
        inset: 0;
        background-color: rgba(0,0,0,0.5);
        z-index: 998;
    }

    .mobile-overlay.show {
        display: block;
    }
}

@media (max-width: 600px) {
    .hero h1 {
        font-size: 28px;
    }

    .actions-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .top-bar .container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .ticket-wrapper {
        padding: 24px;
    }

    .chat-messages {
        height: 280px;
    }
}

/* ---------- Scroll to Top ---------- */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--primary-green);
    color: var(--white);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 122, 62, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 900;
}

.scroll-top.show {
    opacity: 1;
    transform: translateY(0);
}

.scroll-top:hover {
    background-color: #005c30;
}

.scroll-top svg {
    width: 20px;
    height: 20px;
    fill: var(--white);
}

/* ---------- Tab Navigation ---------- */
.tab-nav {
    display: flex;
    gap: 4px;
    background-color: var(--off-white);
    padding: 6px;
    border-radius: 12px;
    margin-bottom: 32px;
    border: 1px solid var(--border);
    flex-wrap: wrap;
}

.tab-nav button {
    flex: 1;
    padding: 12px 18px;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-light);
    transition: var(--transition);
    font-family: inherit;
    white-space: nowrap;
}

.tab-nav button.active {
    background-color: var(--primary-green);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(0, 122, 62, 0.25);
}

.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ---------- Service Hours ---------- */
.service-hours {
    background-color: #fffbf0;
    border: 1px solid #f0d9a8;
    border-radius: 10px;
    padding: 16px 20px;
    margin-top: 20px;
}

.service-hours h4 {
    font-family: 'Neufile Grotesk', sans-serif;
    font-size: 13px;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.service-hours p {
    font-size: 14px;
    color: var(--text-dark);
    line-height: 1.6;
}

/* File upload style */
.file-upload-wrapper {
    border: 2px dashed var(--border);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background-color: var(--off-white);
}

.file-upload-wrapper:hover {
    border-color: var(--primary-green);
    background-color: #e8f5e9;
}

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

.file-upload-label {
    font-size: 14px;
    color: var(--text-light);
    cursor: pointer;
}

.file-upload-label svg {
    width: 24px;
    height: 24px;
    fill: var(--primary-green);
    display: block;
    margin: 0 auto 6px;
}

.file-name {
    font-size: 13px;
    color: var(--primary-green);
    margin-top: 6px;
    font-weight: 500;
}