/* =============================================
   Kazeniq Landing Page Styles
   Design System: Calm, Intelligent, Accessible
   ============================================= */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: #1a1a1a;
    background-color: #fafafa;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

button {
    font-family: inherit;
}

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

a {
    text-decoration: none;
    color: inherit;
}

/* ========== Color Variables ========== */
:root {
    --color-primary: #4a9d9c;
    --color-primary-dark: #357a79;
    --color-primary-light: #e8f4f4;
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-text-muted: #737373;
    --color-background: #fafafa;
    --color-white: #ffffff;
    --color-border: #e0e0e0;
    --color-focus: #2c5f5f;
    --color-success: #4a9d9c;
}

/* ========== Utility Mixin Equivalents ========== */
@mixin-focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

@mixin-transition {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@mixin-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ========== Landing Page Container ========== */
.kazeniq-landing {
    min-height: 100vh;
    overflow-x: hidden;
}

/* ========== Navigation ========== */
.landing-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(250, 250, 250, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.landing-nav.scrolled {
    background-color: rgba(250, 250, 250, 0.95);
    border-bottom-color: var(--color-border);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo .logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    background: none;
    border: none;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: 0.5rem 1rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
    color: var(--color-primary);
}

.nav-link:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

.nav-link-cta {
    color: var(--color-primary);
    font-weight: 600;
}

@media (max-width: 640px) {
    .nav-container {
        padding: 0 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .nav-link {
        font-size: 0.875rem;
        padding: 0.5rem;
    }
}

/* ========== Hero Section ========== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 6rem 1.5rem;
    overflow: hidden;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
    max-width: 800px;
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}

.hero-headline {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--color-text-primary);
    letter-spacing: -0.03em;
}

.hero-subhead {
    font-size: clamp(1.125rem, 2vw, 1.375rem);
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 3rem;
    max-width: 650px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-visual {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
    opacity: 0.15;
    pointer-events: none;
}

.flow-lines {
    width: 100%;
    height: 100%;
}

.flow-lines svg {
    width: 100%;
    height: 100%;
    color: var(--color-primary);
}

.flow-line {
    opacity: 0;
    animation: flowAnimation 3s ease-in-out infinite;
}

.flow-line-1 {
    animation-delay: 0s;
}

.flow-line-2 {
    animation-delay: 0.5s;
}

.flow-line-3 {
    animation-delay: 1s;
}

@keyframes flowAnimation {
    0% {
        opacity: 0;
        stroke-dasharray: 1000;
        stroke-dashoffset: 1000;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0;
        stroke-dasharray: 1000;
        stroke-dashoffset: 0;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    .hero-section {
        min-height: 90vh;
        padding: 4rem 1.5rem;
    }
}

/* ========== Buttons ========== */
.btn {
    display: inline-block;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    padding: 1rem 2rem;
    border-radius: 8px;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(74, 157, 156, 0.3);
}

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

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

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

.btn-outline:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.btn-text {
    background-color: transparent;
    color: var(--color-primary);
    border: none;
    padding: 0.5rem 1rem;
    text-decoration: underline;
    text-underline-offset: 4px;
}

.btn-text:hover:not(:disabled) {
    color: var(--color-primary-dark);
}

/* ========== Section Styles ========== */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 3rem;
    text-align: center;
    color: var(--color-text-primary);
    letter-spacing: -0.02em;
}

.section-intro {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    text-align: center;
    max-width: 700px;
    margin: 0 auto 3rem;
}

@media (max-width: 768px) {
    .section-container {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }
}

/* ========== What We Do Section ========== */
.what-we-do-section {
    background-color: var(--color-white);
}

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

.pillar-card {
    padding: 3rem;
    background-color: var(--color-background);
    border-radius: 12px;
    border: 1px solid var(--color-border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.pillar-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary-light);
}

.pillar-title {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
    line-height: 1.3;
}

.pillar-benefit {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.pillar-example {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

@media (max-width: 640px) {
    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

/* ========== Values Section ========== */
.values-section {
    background-color: var(--color-primary-light);
}

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

.value-item {
    padding: 1.5rem;
}

.value-term {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.value-definition {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ========== Ecosystem Section ========== */
.ecosystem-section {
    background-color: var(--color-white);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.project-card {
    padding: 3rem;
    background-color: var(--color-background);
    border-radius: 12px;
    border: 2px solid var(--color-border);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.project-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.project-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.project-status {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    border-radius: 4px;
}

.project-tagline {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.project-description {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.project-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

@media (max-width: 640px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

/* ========== Trust Section ========== */
.trust-section {
    background-color: var(--color-background);
}

.trust-points {
    max-width: 800px;
    margin: 0 auto;
    list-style: none;
}

.trust-points li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.trust-points li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

/* ========== Contact Section ========== */
.contact-section {
    background-color: var(--color-white);
}

.contact-form {
    max-width: 500px;
    margin: 0 auto;
}

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

.form-label {
    display: block;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 1rem 1.5rem;
    font-family: inherit;
    font-size: 1rem;
    color: var(--color-text-primary);
    background-color: var(--color-white);
    border: 2px solid var(--color-border);
    border-radius: 8px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.form-input:hover {
    border-color: var(--color-primary-light);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(74, 157, 156, 0.1);
}

.form-input::placeholder {
    color: var(--color-text-muted);
}

.btn-submit {
    width: 100%;
    margin-top: 1.5rem;
}

.form-status {
    margin-top: 1.5rem;
    padding: 1rem;
    text-align: center;
    font-size: 0.95rem;
    color: var(--color-success);
    background-color: var(--color-primary-light);
    border-radius: 6px;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== Footer ========== */
.landing-footer {
    background-color: var(--color-text-primary);
    color: var(--color-white);
    padding: 4rem 0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-container {
        grid-template-columns: 2fr 1fr 1fr;
        text-align: left;
        gap: 4rem;
    }
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    display: block;
    margin-bottom: 1rem;
}

.footer-tagline {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

@media (min-width: 768px) {
    .footer-links {
        align-items: flex-start;
    }
}

.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.95rem;
    background: none;
    border: none;
    font-family: inherit;
    cursor: pointer;
    padding: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-link:hover {
    color: var(--color-white);
    text-decoration: underline;
}

.footer-link:focus-visible {
    outline: 2px solid var(--color-white);
    outline-offset: 2px;
}

.footer-legal {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (min-width: 768px) {
    .footer-legal {
        justify-content: flex-end;
    }
}

/* ========== Modal ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 1.5rem;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    background-color: var(--color-white);
    border-radius: 16px;
    padding: 3rem;
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 640px) {
    .modal-content {
        padding: 2rem;
    }
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: none;
    border: none;
    font-size: 2rem;
    line-height: 1;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-close:hover {
    background-color: var(--color-background);
    color: var(--color-text-primary);
}

.modal-close:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-right: 3rem;
}

.modal-title {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.modal-status {
    display: inline-block;
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    border-radius: 4px;
}

.modal-tagline {
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.modal-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
    margin-bottom: 2rem;
}

.modal-features {
    margin-bottom: 2rem;
}

.modal-features h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: 1rem;
}

.modal-features ul {
    list-style: none;
    padding: 0;
}

.modal-features li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

.modal-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* ========== Accessibility Enhancements ========== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

*:focus-visible {
    outline: 3px solid var(--color-focus);
    outline-offset: 2px;
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn-primary {
        border: 3px solid currentColor;
    }

    .btn-secondary,
    .btn-outline {
        border-width: 3px;
    }

    .form-input:focus {
        border-width: 3px;
    }
}

/* ========== Print Styles ========== */
@media print {

    .landing-nav,
    .hero-visual,
    .modal-overlay,
    .btn,
    .contact-form {
        display: none;
    }

    .kazeniq-landing {
        background-color: white;
    }

    * {
        color: black !important;
        box-shadow: none !important;
    }
}