/* ============================================
   PERVASIVE CP - Global Styles
   Industrial / Minimal
   ============================================ */

/* --- Font Faces --- */
@font-face {
    font-family: 'Special Gothic Expanded One';
    src: url('../Fonts/SpecialGothicExpandedOne-Regular.ttf') format('truetype');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'M PLUS 1 Code';
    src: url('../Fonts/M_PLUS_1_Code/MPLUS1Code-VariableFont_wght.ttf') format('truetype');
    font-weight: 100 700;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Roboto';
    src: url('../Fonts/Roboto/Roboto-VariableFont_wdth,wght.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Roboto';
    src: url('../Fonts/Roboto/Roboto-Italic-VariableFont_wdth,wght.ttf') format('truetype');
    font-weight: 100 900;
    font-style: italic;
    font-display: swap;
}

/* --- CSS Variables --- */
:root {
     /* Colors */
    --color-bg:           #FFFFFF;
    --color-surface:      #F4F4F6;
    --color-surface-alt:  #EAEAEE;
    --color-border:       #D0D0D8;
    --color-accent:       #ff6a00;
    --color-accent-dim:   #cc5500;
    --color-text:         #3A3A48;
    --color-text-muted:   #6E6E80;
    --color-heading:      #0B0B0F;

    /* Fonts */
    --font-display: 'Special Gothic Expanded One', sans-serif;
    --font-mono:    'M PLUS 1 Code', monospace;
    --font-body:    'Roboto', sans-serif;

    /* Spacing */
    --space-xs:  0.25rem;
    --space-sm:  0.5rem;
    --space-md:  1rem;
    --space-lg:  2rem;
    --space-xl:  4rem;
    --space-2xl: 8rem;

    /* Layout */
    --content-width: 1200px;
    --navbar-height: 64px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

ul, ol {
    list-style: none;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

/* --- Typography --- */
h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.1;
    text-transform: uppercase;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }

p {
    max-width: 65ch;
}

/* --- Layout Utilities --- */
.container {
    width: 100%;
    max-width: var(--content-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section {
    padding: var(--space-xl) 0;
}

/* --- Navbar --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--navbar-height);
    background-color: rgba(255, 255, 255, 0.92);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

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

.navbar__logo img {
    height: 32px;
    width: auto;
}

.navbar__logo span {
    font-family: var(--font-display);
    font-size: 1.3rem;
    color: var(--color-heading);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.navbar__links {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.navbar__links a {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    position: relative;
}

.navbar__links a:hover,
.navbar__links a.active {
    color: var(--color-heading);
}

.navbar__links a.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-accent);
}

/* Login link */
.navbar__login {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-accent);
    border: 1px solid var(--color-accent);
    padding: 0.35rem 1rem;
    border-radius: 0px;
    transition: background-color 0.2s, color 0.2s;
    margin-left: auto;
}

.navbar__links a.navbar__login:hover {
    background-color: var(--color-accent);
    color: #ffffff;
}

/* Mobile menu toggle */
.navbar__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
}

.navbar__toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-heading);
    transition: transform 0.3s, opacity 0.3s;
}

/* --- Gallery --- */
.gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.gallery__item {
    margin: 0;
}

.gallery__item img {
    width: 100%;
    height: auto;
    border-radius: 0;
    object-fit: cover;
    cursor: zoom-in;
}

.gallery__item figcaption {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--space-sm);
    text-align: left;
}

@media (max-width: 600px) {
    .gallery {
        grid-template-columns: 1fr;
    }
}

/* --- Footer --- */
.footer {
    border-top: 1px solid var(--color-border);
    background-color: var(--color-surface);
    padding: var(--space-xl) 0 var(--space-lg);
}

.footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr 1fr;
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}

.footer__brand p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-top: var(--space-md);
}

.footer__heading {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
}

.footer__link-list li + li {
    margin-top: var(--space-sm);
}

.footer__link-list a {
    font-size: 0.9rem;
    color: var(--color-text);
}

.footer__link-list a:hover {
    color: var(--color-accent);
}

.footer__app-store-link {
    display: inline-block;
}

.footer__app-store-badge {
    display: block;
    height: 40px;
    width: auto;
}

.footer__bottom {
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer__bottom p {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* --- Buttons --- */
.btn {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.75rem 1.75rem;
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    cursor: pointer;
}

.btn--primary {
    background-color: var(--color-accent);
    color: #FFFFFF;
}

.btn--primary:hover {
    background-color: #cc5500;
}

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

.btn--outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* --- Hero Section --- */
.hero {
    min-height: min(90vh, 800px);
    display: flex;
    align-items: center;
    padding-top: calc(var(--navbar-height) + var(--space-lg));
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--color-border);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero__content {
    max-width: 720px;
}

.hero__label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

.hero h1 {
    margin-bottom: var(--space-lg);
    color: #FFFFFF;
    text-transform: none;
}

.hero p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: var(--space-xl);
}

/* --- Hero Background Images (per page) --- */
.hero--home       { background-image: url('../Images/Home.png'); }
.hero--devices    { background-image: url('../Images/Home.png'); }
.hero--mobile-app { background-image: url('../Images/Home.png'); }
.hero--testimonials { background-image: url('../Images/Home.png'); }
.hero--portal     { background-image: url('../Images/Home.png'); }
.hero--support    { background-image: url('../Images/Home.png'); }
.hero--contact    { background-image: url('../Images/Home.png'); }

.hero__actions {
    display: flex;
    gap: var(--space-md);
}

.hero .btn--outline {
    border-color: rgba(255, 255, 255, 0.4);
    color: #FFFFFF;
}

.hero .btn--outline:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

/* --- Flowchart --- */
.flowchart-section {
    background-color: var(--color-surface);
    padding: var(--space-lg) 0;
}

.flowchart-section .section-header {
    margin-bottom: var(--space-md);
}

.flowchart-wrap {
    overflow: hidden;
}

.flowchart {
    position: relative;
    width: 100%;
    aspect-ratio: 5 / 1.4;
}

.flowchart--vertical {
    display: none;
}

.flowchart__svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

.flowchart__grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 4.75fr 1fr 4.75fr 1fr;
    grid-template-rows: repeat(3, 1fr);
    width: 100%;
    height: 100%;
}

.flowchart__node {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-sm);
}

.flowchart__node img {
    width: 56px;
    height: 56px;
    object-fit: contain;
    margin-bottom: var(--space-xs);
}

.flowchart__node span {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    white-space: nowrap;
}

/* Vertical flowchart for small screens */
.flowchart--vertical .flowchart__grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(5, 1fr);
}

@media (max-width: 600px) {
    .flowchart-wrap {
        display: none;
    }

    .flowchart--vertical {
        display: block;
        aspect-ratio: 3 / 8;
        max-width: 340px;
        margin: 0 auto;
    }
}

/* --- Split Rows (alternating text + image) --- */
.split-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
}

.split-row + .split-row {
    margin-top: var(--space-xl);
}

.split-row__text h3 {
    color: var(--color-heading);
    margin-bottom: var(--space-md);
}

.split-row__text p {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    margin-bottom: var(--space-md);
}

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

.split-row__text .flow-summary {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-text);
    margin-bottom: var(--space-md);
}

.split-row__text ul {
    list-style: disc;
    padding-left: 1.25rem;
    margin-bottom: var(--space-md);
}

.split-row__text ul:last-child {
    margin-bottom: 0;
}

.split-row__text li {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-xs);
}

.split-row__text .split-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
}

.split-row__text .split-columns h4 {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-heading);
    margin-bottom: var(--space-sm);
}

.spec-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

.spec-actions .btn {
    justify-content: center;
}

.card .spec-actions {
    flex-direction: column;
    align-items: stretch;
}

.card .spec-actions .btn {
    width: 100%;
    justify-content: flex-start;
}

.resource-links {
    list-style: disc;
    padding-left: 1.25rem;
    margin-top: var(--space-md);
}

.resource-links li + li {
    margin-top: var(--space-sm);
}

.resource-links a {
    color: var(--color-text);
}

.resource-links a:hover {
    color: var(--color-accent);
}

.split-row__image {
    position: relative;
    overflow: hidden;
}

.split-row__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    cursor: zoom-in;
}

.split-row__image::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('../Images/Edge.png');
    background-size: 100% 100%;
    background-repeat: no-repeat;
    image-rendering: pixelated;
    image-rendering: crisp-edges;
    pointer-events: none;
}

/* Reversed: image on left, text on right */
.split-row--reversed .split-row__image {
    order: -1;
}

@media (max-width: 600px) {
    .split-row {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }

    .split-row--reversed .split-row__image {
        order: 0;
    }

    .split-row__text .split-columns {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
}

/* --- Image Banner --- */
.image-banner {
    background-image: url('../Images/earth.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: var(--space-2xl) 0;
    display: flex;
    align-items: center;
}

.image-banner__content {
    max-width: 540px;
}

.image-banner__content h2 {
    color: #FFFFFF;
    margin-bottom: var(--space-md);
}

.image-banner__content p {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.75);
}

/* --- Page Content Spacer --- */
.page-content {
    padding-top: var(--navbar-height);
}

/* --- Cards --- */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: var(--space-lg);
}

.card:hover {
    border-color: var(--color-accent-dim);
}

.card__icon {
    font-size: 1.5rem;
    margin-bottom: var(--space-md);
    color: var(--color-accent);
}

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

.card p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

/* --- Section Header --- */
.section-header {
    margin-bottom: var(--space-xl);
}

.section-header__label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-accent);
    margin-bottom: var(--space-sm);
}

.section-header h2 {
    color: var(--color-heading);
    margin-bottom: var(--space-md);
}

.section-header p {
    color: var(--color-text-muted);
    font-size: 1rem;
}

/* --- Grid Layouts --- */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

/* --- Image Lightbox --- */
.lightbox-open {
    overflow: hidden;
}

.image-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    background-color: rgba(11, 11, 15, 0.92);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.image-lightbox.is-open {
    opacity: 1;
    pointer-events: auto;
}

.image-lightbox__close {
    position: absolute;
    top: var(--space-lg);
    right: var(--space-lg);
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.35);
    background-color: rgba(255, 255, 255, 0.08);
    color: #FFFFFF;
    font-size: 2rem;
    line-height: 1;
}

.image-lightbox__close:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
}

.image-lightbox__image {
    max-width: min(92vw, 1600px);
    max-height: 92vh;
    width: auto;
    height: auto;
    object-fit: contain;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
    cursor: zoom-out;
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .navbar__links {
        display: none;
    }

    .navbar__toggle {
        display: flex;
    }

    .navbar__links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: var(--navbar-height);
        left: 0;
        right: 0;
        background-color: var(--color-surface);
        border-bottom: 1px solid var(--color-border);
        padding: var(--space-lg);
        gap: var(--space-md);
    }

    .footer__grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-lg);
    }

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

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

    .hero__actions {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 600px) {
    .footer__grid {
        grid-template-columns: 1fr;
    }

    .footer__bottom {
        flex-direction: column;
        gap: var(--space-md);
        text-align: center;
    }
}