/* KPN Concept Site - Main Styles */
@import url('https://fonts.googleapis.com/css2?family=Kumbh+Sans:wght@900&family=Roboto:wght@400;500;700&display=swap');
@import url('tokens.css');

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--kpn-font-family);
    font-size: var(--kpn-font-size-md);
    line-height: var(--kpn-line-height-lg);
    color: var(--kpn-color-neutral-800);
    background-color: var(--kpn-color-white);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--kpn-heading-font-family);
    font-weight: var(--kpn-font-weight-extrabold);
    line-height: 1.2;
}

h1 {
    font-size: var(--kpn-font-size-3xl);
    color: var(--kpn-color-primary-600);
}

h2 {
    font-size: var(--kpn-font-size-2xl);
    color: var(--kpn-color-primary-600);
}

h3 {
    font-size: var(--kpn-font-size-xl);
}

h4 {
    font-size: var(--kpn-font-size-lg);
}

p {
    margin-bottom: var(--kpn-space-md);
}

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

a:hover {
    color: var(--kpn-color-secondary-400);
    text-decoration: underline;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--kpn-space-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--kpn-space-lg);
    }
}

/* Header / Navigation */
.header {
    background-color: var(--kpn-color-white);
    box-shadow: var(--kpn-shadow-level-1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top {
    background-color: var(--kpn-color-primary-500);
    padding: var(--kpn-space-xs) 0;
}

.header-top .container {
    display: flex;
    justify-content: flex-end;
    gap: var(--kpn-space-md);
}

.header-top a {
    color: var(--kpn-color-white);
    font-size: var(--kpn-font-size-sm);
}

.header-main {
    padding: var(--kpn-space-md) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: var(--kpn-space-xs);
}

.logo-icon {
    width: 60px;
    height: 32px;
    background-color: var(--kpn-color-primary-500);
    border-radius: var(--kpn-border-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--kpn-color-white);
    font-family: var(--kpn-heading-font-family);
    font-weight: var(--kpn-font-weight-extrabold);
    font-size: var(--kpn-font-size-sm);
}

.nav-main {
    display: none;
}

@media (min-width: 992px) {
    .nav-main {
        display: flex;
        gap: var(--kpn-space-xl);
    }
}

.nav-main a {
    color: var(--kpn-color-neutral-800);
    font-weight: var(--kpn-font-weight-bold);
    padding: var(--kpn-space-xs) 0;
    border-bottom: 3px solid transparent;
    transition: border-color 0.2s ease;
}

.nav-main a:hover,
.nav-main a.active {
    color: var(--kpn-color-secondary);
    text-decoration: none;
    border-bottom-color: var(--kpn-color-primary-500);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--kpn-space-md);
}

.mobile-menu-btn {
    display: flex;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--kpn-space-xs);
}

@media (min-width: 992px) {
    .mobile-menu-btn {
        display: none;
    }
}

/* Hero Section */
.hero {
    background-color: var(--kpn-color-primary-500);
    padding: var(--kpn-space-3xl) 0;
    color: var(--kpn-color-white);
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero-label {
    display: inline-block;
    background-color: var(--kpn-color-tertiary-500);
    color: var(--kpn-color-black);
    padding: var(--kpn-space-2xs) var(--kpn-space-sm);
    border-radius: var(--kpn-border-radius-full);
    font-size: var(--kpn-font-size-sm);
    font-weight: var(--kpn-font-weight-bold);
    margin-bottom: var(--kpn-space-md);
}

.hero h1 {
    color: var(--kpn-color-white);
    font-size: var(--kpn-font-size-4xl);
    margin-bottom: var(--kpn-space-md);
}

.hero p {
    font-size: var(--kpn-font-size-lg);
    margin-bottom: var(--kpn-space-xl);
    opacity: 0.95;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--kpn-space-md);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--kpn-space-xs);
    padding: var(--kpn-space-sm) var(--kpn-space-lg);
    border-radius: var(--kpn-border-radius-full);
    font-size: var(--kpn-font-size-md);
    font-weight: var(--kpn-font-weight-bold);
    text-decoration: none;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background-color: var(--kpn-color-secondary-400);
    text-decoration: none;
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--kpn-color-white);
    color: var(--kpn-color-white);
}

.btn-secondary:hover {
    background-color: var(--kpn-color-white);
    color: var(--kpn-color-neutral-800);
    text-decoration: none;
}

.btn-outline {
    background-color: transparent;
    border-color: var(--kpn-color-secondary);
    color: var(--kpn-color-secondary);
}

.btn-outline:hover {
    background-color: var(--kpn-color-secondary);
    color: var(--kpn-color-white);
    text-decoration: none;
}

.btn-tertiary {
    background-color: var(--kpn-color-tertiary-500);
    color: var(--kpn-color-black);
}

.btn-tertiary:hover {
    background-color: var(--kpn-color-tertiary-300);
    text-decoration: none;
}

/* Sections */
.section {
    padding: var(--kpn-space-4xl) 0;
}

.section-gray {
    background-color: var(--kpn-color-neutral-50);
}

.section-title {
    text-align: center;
    margin-bottom: var(--kpn-space-3xl);
}

.section-title h2 {
    margin-bottom: var(--kpn-space-sm);
}

.section-title p {
    color: var(--kpn-color-neutral-600);
    max-width: 700px;
    margin: 0 auto;
}

/* Cards */
.card {
    background-color: var(--kpn-color-white);
    border-radius: var(--kpn-border-radius-md);
    box-shadow: var(--kpn-shadow-level-1);
    overflow: hidden;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
    box-shadow: var(--kpn-shadow-level-2);
    transform: translateY(-4px);
}

.card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background-color: var(--kpn-color-neutral-100);
}

.card-content {
    padding: var(--kpn-space-lg);
}

.card-label {
    display: inline-block;
    background-color: var(--kpn-color-primary-100);
    color: var(--kpn-color-primary-700);
    padding: var(--kpn-space-2xs) var(--kpn-space-sm);
    border-radius: var(--kpn-border-radius-full);
    font-size: var(--kpn-font-size-xs);
    font-weight: var(--kpn-font-weight-bold);
    margin-bottom: var(--kpn-space-sm);
}

.card h3 {
    margin-bottom: var(--kpn-space-sm);
}

.card p {
    color: var(--kpn-color-neutral-600);
    margin-bottom: var(--kpn-space-md);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--kpn-space-lg);
}

.grid-2 {
    grid-template-columns: 1fr;
}

.grid-3 {
    grid-template-columns: 1fr;
}

.grid-4 {
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Feature Icons Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--kpn-space-md);
}

@media (min-width: 768px) {
    .feature-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 992px) {
    .feature-grid {
        grid-template-columns: repeat(6, 1fr);
    }
}

.feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: var(--kpn-space-lg);
    background-color: var(--kpn-color-white);
    border-radius: var(--kpn-border-radius);
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.feature-item:hover {
    background-color: var(--kpn-color-neutral-50);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--kpn-space-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon svg {
    width: 48px;
    height: 48px;
    stroke: var(--kpn-color-neutral-700);
}

.feature-item span {
    font-size: var(--kpn-font-size-sm);
    color: var(--kpn-color-neutral-700);
}

/* USP Section */
.usp-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--kpn-space-xl);
}

@media (min-width: 768px) {
    .usp-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.usp-item {
    text-align: center;
    padding: var(--kpn-space-lg);
}

.usp-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--kpn-space-md);
    background-color: var(--kpn-color-primary-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.usp-icon svg {
    width: 40px;
    height: 40px;
    stroke: var(--kpn-color-primary-600);
}

.usp-icon.check {
    background-color: var(--kpn-color-white);
    border: 3px solid var(--kpn-color-primary-500);
}

.usp-icon.check svg {
    stroke: var(--kpn-color-primary-500);
}

.usp-item h3 {
    margin-bottom: var(--kpn-space-sm);
    color: var(--kpn-color-primary-600);
}

.usp-item p {
    color: var(--kpn-color-neutral-600);
    font-size: var(--kpn-font-size-sm);
}

/* Promo Banner */
.promo-banner {
    background-color: var(--kpn-color-neutral-800);
    color: var(--kpn-color-white);
    padding: var(--kpn-space-3xl) 0;
    position: relative;
    overflow: hidden;
}

.promo-banner .container {
    display: flex;
    flex-direction: column;
    gap: var(--kpn-space-xl);
}

@media (min-width: 768px) {
    .promo-banner .container {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

.promo-content {
    max-width: 500px;
}

.promo-content h2 {
    color: var(--kpn-color-white);
    margin-bottom: var(--kpn-space-md);
}

.promo-content p {
    opacity: 0.9;
    margin-bottom: var(--kpn-space-lg);
}

.promo-buttons {
    display: flex;
    gap: var(--kpn-space-md);
}

/* Product Cards */
.product-card {
    background-color: var(--kpn-color-white);
    border-radius: var(--kpn-border-radius-md);
    box-shadow: var(--kpn-shadow-level-1);
    padding: var(--kpn-space-lg);
    text-align: center;
    transition: box-shadow 0.2s ease;
}

.product-card:hover {
    box-shadow: var(--kpn-shadow-level-2);
}

.product-image {
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--kpn-space-md);
}

.product-image img {
    max-height: 100%;
    max-width: 100%;
    object-fit: contain;
}

.product-brand {
    font-size: var(--kpn-font-size-xs);
    color: var(--kpn-color-neutral-500);
    margin-bottom: var(--kpn-space-2xs);
}

.product-title {
    font-size: var(--kpn-font-size-lg);
    font-weight: var(--kpn-font-weight-bold);
    margin-bottom: var(--kpn-space-sm);
}

.product-price {
    font-size: var(--kpn-font-size-sm);
    color: var(--kpn-color-neutral-600);
    margin-bottom: var(--kpn-space-md);
}

/* Pricing Cards */
.pricing-card {
    background-color: var(--kpn-color-white);
    border-radius: var(--kpn-border-radius-md);
    box-shadow: var(--kpn-shadow-level-1);
    padding: var(--kpn-space-xl);
    text-align: center;
    border: 2px solid transparent;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.pricing-card.featured {
    border-color: var(--kpn-color-primary-500);
}

.pricing-card:hover {
    box-shadow: var(--kpn-shadow-level-2);
}

.pricing-card h3 {
    color: var(--kpn-color-secondary);
    margin-bottom: var(--kpn-space-md);
}

.pricing-price {
    margin-bottom: var(--kpn-space-lg);
}

.pricing-price .amount {
    font-size: var(--kpn-font-size-4xl);
    font-weight: var(--kpn-font-weight-extrabold);
    font-family: var(--kpn-heading-font-family);
    color: var(--kpn-color-neutral-800);
}

.pricing-price .period {
    font-size: var(--kpn-font-size-sm);
    color: var(--kpn-color-neutral-500);
}

.pricing-price .starting {
    font-size: var(--kpn-font-size-sm);
    color: var(--kpn-color-neutral-500);
    display: block;
}

.pricing-features {
    list-style: none;
    text-align: left;
    margin-bottom: var(--kpn-space-xl);
}

.pricing-features li {
    padding: var(--kpn-space-sm) 0;
    border-bottom: 1px solid var(--kpn-color-neutral-100);
    display: flex;
    align-items: center;
    gap: var(--kpn-space-sm);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features .check {
    color: var(--kpn-color-primary-500);
    font-weight: bold;
}

/* Footer */
.footer {
    background-color: var(--kpn-color-primary-500);
    color: var(--kpn-color-white);
    padding: var(--kpn-space-4xl) 0 var(--kpn-space-xl);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--kpn-space-xl);
    margin-bottom: var(--kpn-space-3xl);
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.footer-col h4 {
    color: var(--kpn-color-white);
    margin-bottom: var(--kpn-space-md);
    font-size: var(--kpn-font-size-md);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: var(--kpn-space-xs);
}

.footer-col a {
    color: var(--kpn-color-white);
    opacity: 0.9;
    font-size: var(--kpn-font-size-sm);
}

.footer-col a:hover {
    opacity: 1;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.2);
    padding-top: var(--kpn-space-xl);
    display: flex;
    flex-direction: column;
    gap: var(--kpn-space-md);
    align-items: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
    }
}

.footer-bottom p {
    font-size: var(--kpn-font-size-sm);
    opacity: 0.8;
    margin: 0;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--kpn-space-sm); }
.mt-2 { margin-top: var(--kpn-space-md); }
.mt-3 { margin-top: var(--kpn-space-lg); }
.mt-4 { margin-top: var(--kpn-space-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--kpn-space-sm); }
.mb-2 { margin-bottom: var(--kpn-space-md); }
.mb-3 { margin-bottom: var(--kpn-space-lg); }
.mb-4 { margin-bottom: var(--kpn-space-xl); }

.hidden { display: none; }

@media (max-width: 767px) {
    .hidden-mobile { display: none; }
}

@media (min-width: 768px) {
    .hidden-desktop { display: none; }
}

/* Breadcrumb */
.breadcrumb {
    padding: var(--kpn-space-md) 0;
    font-size: var(--kpn-font-size-sm);
}

.breadcrumb a {
    color: var(--kpn-color-neutral-500);
}

.breadcrumb span {
    color: var(--kpn-color-neutral-400);
    margin: 0 var(--kpn-space-xs);
}

.breadcrumb .current {
    color: var(--kpn-color-neutral-700);
}

/* Check List */
.check-list {
    list-style: none;
}

.check-list li {
    padding: var(--kpn-space-xs) 0;
    padding-left: var(--kpn-space-xl);
    position: relative;
}

.check-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--kpn-color-primary-500);
    font-weight: bold;
}

/* Announcement Bar */
.announcement-bar {
    background-color: var(--kpn-color-neutral-50);
    padding: var(--kpn-space-md) 0;
    border-bottom: 1px solid var(--kpn-color-neutral-100);
}

.announcement-bar .container {
    display: flex;
    justify-content: center;
    gap: var(--kpn-space-3xl);
    flex-wrap: wrap;
}

.announcement-item {
    display: flex;
    align-items: center;
    gap: var(--kpn-space-sm);
}

.announcement-item strong {
    color: var(--kpn-color-primary-600);
}

/* Tags/Pills */
.tag {
    display: inline-flex;
    align-items: center;
    padding: var(--kpn-space-2xs) var(--kpn-space-sm);
    background-color: var(--kpn-color-neutral-100);
    border-radius: var(--kpn-border-radius-full);
    font-size: var(--kpn-font-size-xs);
    font-weight: var(--kpn-font-weight-semibold);
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.2s ease;
}

.tag:hover {
    background-color: var(--kpn-color-neutral-200);
}

.tag.active {
    background-color: var(--kpn-color-secondary-50);
    border-color: var(--kpn-color-secondary);
    color: var(--kpn-color-secondary);
}

.tags-container {
    display: flex;
    gap: var(--kpn-space-sm);
    flex-wrap: wrap;
    margin-bottom: var(--kpn-space-lg);
}

/* NEW tag */
.tag-new {
    background-color: var(--kpn-color-tertiary-500);
    color: var(--kpn-color-black);
    font-size: var(--kpn-font-size-xs);
    padding: var(--kpn-space-2xs) var(--kpn-space-sm);
    border-radius: var(--kpn-border-radius-full);
    font-weight: var(--kpn-font-weight-bold);
    display: inline-block;
    margin-bottom: var(--kpn-space-xs);
}

/* Product Page Specific */
.product-hero {
    background-color: var(--kpn-color-primary-500);
    padding: var(--kpn-space-xl) 0 var(--kpn-space-3xl);
}

.product-hero-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--kpn-space-xl);
    align-items: center;
}

@media (min-width: 768px) {
    .product-hero-content {
        grid-template-columns: 1fr 1fr;
    }
}

.product-hero-text {
    color: var(--kpn-color-white);
}

.product-hero-text h1 {
    color: var(--kpn-color-white);
    margin-bottom: var(--kpn-space-md);
}

.product-hero-text p {
    font-size: var(--kpn-font-size-lg);
    opacity: 0.95;
}

.product-hero-image {
    display: flex;
    justify-content: center;
}

.product-hero-image img {
    max-width: 100%;
    max-height: 400px;
    object-fit: contain;
}

/* Benefits Section */
.benefits-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--kpn-space-lg);
}

@media (min-width: 768px) {
    .benefits-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.benefit-card {
    text-align: center;
    padding: var(--kpn-space-lg);
}

.benefit-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--kpn-space-md);
    background-color: var(--kpn-color-primary-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.benefit-icon svg {
    width: 32px;
    height: 32px;
    stroke: var(--kpn-color-primary-600);
}

.benefit-card h3 {
    color: var(--kpn-color-primary-600);
    margin-bottom: var(--kpn-space-sm);
}

/* FAQ Section */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--kpn-color-neutral-200);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    padding: var(--kpn-space-lg) 0;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--kpn-font-size-lg);
    font-weight: var(--kpn-font-weight-bold);
    color: var(--kpn-color-neutral-800);
}

.faq-question:hover {
    color: var(--kpn-color-secondary);
}

.faq-answer {
    padding-bottom: var(--kpn-space-lg);
    color: var(--kpn-color-neutral-600);
    display: none;
}

.faq-item.open .faq-answer {
    display: block;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--kpn-color-secondary-600) 0%, var(--kpn-color-secondary-800) 100%);
    color: var(--kpn-color-white);
    padding: var(--kpn-space-4xl) 0;
    text-align: center;
}

.cta-section h2 {
    color: var(--kpn-color-white);
    margin-bottom: var(--kpn-space-md);
}

.cta-section p {
    max-width: 600px;
    margin: 0 auto var(--kpn-space-xl);
    opacity: 0.95;
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--kpn-color-white);
    z-index: 2000;
    padding: var(--kpn-space-xl);
    transform: translateX(-100%);
    transition: transform 0.3s ease;
}

.mobile-nav.open {
    transform: translateX(0);
}

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--kpn-space-xl);
}

.mobile-nav-close {
    background: none;
    border: none;
    font-size: var(--kpn-font-size-xl);
    cursor: pointer;
}

.mobile-nav ul {
    list-style: none;
}

.mobile-nav li {
    border-bottom: 1px solid var(--kpn-color-neutral-100);
}

.mobile-nav a {
    display: block;
    padding: var(--kpn-space-md) 0;
    color: var(--kpn-color-neutral-800);
    font-weight: var(--kpn-font-weight-bold);
}