/* ==========================================================================
   Layout
   Container, grid system, sections, spacing utilities
   ========================================================================== */

/* ==========================================================================
   CONTAINER
   ========================================================================== */

.container {
    width: 100%;
    max-width: var(--container-max);
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
}

@media (min-width: 1024px) {
    .container {
        padding-left: var(--container-padding-lg);
        padding-right: var(--container-padding-lg);
    }
}

/* Narrow container for text content */
.container--narrow {
    max-width: 800px;
}

/* Wide container */
.container--wide {
    max-width: 1440px;
}

/* ==========================================================================
   SECTIONS
   ========================================================================== */

.section {
    padding-top: var(--section-padding-y);
    padding-bottom: var(--section-padding-y);
}

@media (min-width: 1024px) {
    .section {
        padding-top: var(--section-padding-y-lg);
        padding-bottom: var(--section-padding-y-lg);
    }
}

/* Section Variants */
.section--gray {
    background-color: var(--color-gray-50);
}

.section--primary {
    background-color: var(--color-primary);
    color: var(--color-white);
    /* Zajištění plné šířky bez bílého pruhu */
    width: 100%;
}

.section--dark {
    background-color: var(--color-gray-900);
    color: var(--color-white);
}

.section--light-blue {
    background-color: #F5FAFF;
}

.section--dark-image {
    background-image: url('../assets/images/bg-steps.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: var(--color-white);
}

/* Section Header */
.section__header {
    text-align: center;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: var(--space-12);
}

@media (min-width: 1024px) {
    .section__header {
        margin-bottom: var(--space-16);
    }
}

.section__title {
    margin-bottom: var(--space-4);
}

.section__title-logo {
    display: inline;
    height: 1.45em;
    width: auto;
    vertical-align: baseline;
    margin-left: 0.2em;
    margin-bottom: -15px;
}

/* Section subtitle variant for light sections */
.section-subtitle--light {
    color: rgba(255, 255, 255, 0.8);
}

/* ==========================================================================
   HERO SECTION LAYOUT
   ========================================================================== */

.hero {
    padding-top: calc(var(--header-height) + var(--space-12));
    padding-bottom: var(--space-12);
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, #ffffff 0%, #F8FBFF 100%);
}

@media (min-width: 1024px) {
    .hero {
        padding-top: calc(var(--header-height) + var(--space-16));
        padding-bottom: var(--space-16);
    }
}

.hero__content {
    display: grid;
    gap: var(--space-12);
    align-items: center;
    position: relative;
}

@media (min-width: 1024px) {
    .hero__content {
        grid-template-columns: 1.15fr 1fr;
        gap: var(--space-12);
    }
}

.hero__text {
    order: 1;
}

.hero__visual {
    order: 2;
    position: relative;
}

/* Hero Label */
.hero__label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-gray-900);
    color: var(--color-white);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    margin-bottom: var(--space-6);
}

.hero__label-icon {
    font-size: var(--text-base);
}

/* Hero Title */
.hero__title {
    margin-bottom: var(--space-6);
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Gradient highlight for hero title on specific words */
.hero__title-highlight {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0066cc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Hero Description */
.hero__description {
    margin-bottom: var(--space-8);
    max-width: 540px;
}

/* Hero Stats */
.hero__stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-8);
    margin-bottom: var(--space-10);
    padding-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-gray-200);
}

.hero__stat {
    display: flex;
    flex-direction: column;
}

.hero__stat-value {
    font-size: var(--text-3xl);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    line-height: 1;
}

.hero__stat-label {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-top: var(--space-1);
}

/* Hero Actions */
.hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
}

/* Hero Cards Zig-Zag Layout */
.hero__cards-zigzag {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
    padding: var(--space-8) 0;
}

/* Tablet - zmenšit mezery mezi kartami */
@media (min-width: 640px) and (max-width: 1023px) {
    .hero__cards-zigzag {
        gap: var(--space-4);
        padding: var(--space-4) 0;
    }
}

.hero__floating-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-5) var(--space-8);
    box-shadow: var(--shadow-xl);
    min-width: 240px;
    width: fit-content;
}

.hero__floating-card--zigzag-right {
    align-self: flex-end;
    margin-right: var(--space-4);
}

.hero__floating-card--chart {
    align-self: center;
    min-width: 320px;
}

.hero__floating-card--zigzag-left {
    align-self: flex-start;
    margin-left: var(--space-4);
}

/* Tablet - karty více u sebe (menší odsazení) */
@media (min-width: 640px) and (max-width: 1023px) {
    .hero__floating-card--zigzag-right {
        margin-right: var(--space-2);
    }

    .hero__floating-card--zigzag-left {
        margin-left: var(--space-2);
    }

    .hero__floating-card {
        padding: var(--space-4) var(--space-6);
        min-width: 200px;
    }

    .hero__floating-card--chart {
        min-width: 280px;
    }
}

/* Consumption Chart Card */
.hero__floating-card-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-3);
}

.hero__floating-card-chart-value {
    display: flex;
    align-items: baseline;
    gap: var(--space-1);
}

.hero__floating-card-consumption-value {
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    line-height: 1;
}

.hero__floating-card-consumption-unit {
    font-size: var(--text-sm);
    color: var(--color-gray-400);
}

/* Door Status Card */
.hero__floating-card-door {
    display: flex;
    align-items: center;
}

.hero__floating-card-door-value {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--color-success);
    transition: color 0.3s ease;
}

.hero__floating-card-door-value.is-open {
    color: var(--color-error);
}

.hero__floating-card-chart {
    width: 100%;
    height: 80px;
}

.hero__consumption-chart {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.hero__chart-group {
    transition: transform 0.5s linear;
}

.hero__floating-card-label {
    display: block;
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-3);
}

.hero__floating-card-content {
    display: flex;
    flex-direction: row-reverse;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.hero__floating-card-indicator {
    position: relative;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero__floating-card-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--color-success);
    position: relative;
    z-index: 2;
    transition: background-color 0.3s ease;
}

.hero__floating-card-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-success);
    opacity: 0;
    z-index: 1;
}

/* Pulse animation for incident indicator */
@keyframes pulse-incident {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 0.6;
    }
    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

.hero__floating-card-dot.is-active {
    background-color: var(--color-error);
}

.hero__floating-card-dot.is-active::before {
    background-color: var(--color-error);
    opacity: 0.4;
    animation-name: pulse-incident;
    animation-duration: 1s;
    animation-iteration-count: infinite;
    animation-direction: normal;
    animation-timing-function: cubic-bezier(.55, .12, .92, .44);
}

.hero__floating-card-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
    line-height: 1;
    min-width: 50px;
    text-align: left;
}

/* Temperature Card (Right) */

.hero__floating-card-temp {
    display: flex;
    align-items: baseline;
    justify-content: flex-start;
    gap: var(--space-1);
}

.hero__floating-card-temp-value {
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--color-success);
    line-height: 1;
    transition: color 0.3s ease;
}

.hero__floating-card-temp-value.is-warning {
    color: var(--color-error);
}

.hero__floating-card-temp-unit {
    font-size: var(--text-lg);
    color: var(--color-gray-400);
}

/* ==========================================================================
   CAPABILITIES SECTION LAYOUT - Co umíme monitorovat
   ========================================================================== */

.capabilities__grid {
    display: grid;
    gap: var(--space-4);
}

@media (min-width: 640px) {
    .capabilities__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-5);
    }
}

@media (min-width: 1024px) {
    .capabilities__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

/* ==========================================================================
   MONITORING SECTION LAYOUT - Real-time monitoring & Alerting
   ========================================================================== */

.monitoring__grid {
    display: grid;
    gap: var(--space-6);
}

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

@media (min-width: 1024px) {
    .monitoring__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-8);
    }
}

/* Platform Secondary Features */
.platform__secondary {
    margin-top: var(--space-12);
    padding-top: var(--space-8);
}

.platform__secondary-title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-gray-600);
    text-align: center;
    margin-bottom: var(--space-8);
}

.platform__secondary-grid {
    display: grid;
    gap: var(--space-4);
    grid-template-columns: repeat(2, 1fr);
}

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

@media (min-width: 1024px) {
    .platform__secondary-grid {
        grid-template-columns: repeat(6, 1fr);
        gap: var(--space-6);
    }
}

.feature-card {
    padding: var(--space-4);
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: all var(--transition-base);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 8px 24px rgba(3, 169, 243, 0.1);
    transform: translateY(-2px);
    border-color: rgba(3, 169, 243, 0.2);
}

.feature-card__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-3);
    background-color: var(--color-primary-lighter);
    color: var(--color-primary);
    border-radius: var(--radius-lg);
}

.feature-card__title {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-gray-900);
    margin-bottom: var(--space-1);
}

.feature-card__desc {
    font-size: var(--text-xs);
    color: var(--color-gray-500);
    line-height: var(--leading-snug);
}

.monitoring__visual {
    margin-top: var(--space-12);
}

@media (min-width: 1024px) {
    .monitoring__visual {
        margin-top: var(--space-16);
    }
}

/* ==========================================================================
   SOLUTIONS SECTION LAYOUT
   ========================================================================== */

.solutions__grid {
    display: grid;
    gap: var(--space-6);
}

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

@media (min-width: 1024px) {
    .solutions__grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-6);
    }
}

/* Featured card spans full width on mobile, normal on desktop */
.solutions__grid .card--featured {
    grid-column: 1 / -1;
}

@media (min-width: 1024px) {
    .solutions__grid .card--featured {
        grid-column: span 1;
    }
}

/* ==========================================================================
   PLATFORM SECTION LAYOUT
   ========================================================================== */

.platform__grid {
    display: grid;
    gap: var(--space-6);
}

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

@media (min-width: 1024px) {
    .platform__grid {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-8);
    }
}

.platform__visual {
    margin-top: var(--space-12);
}

@media (min-width: 1024px) {
    .platform__visual {
        margin-top: var(--space-16);
    }
}

/* ==========================================================================
   REFERENCES SECTION LAYOUT
   ========================================================================== */

.references__logos {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
    .references__logos {
        grid-template-columns: repeat(4, 1fr);
        gap: var(--space-6);
    }
}

@media (min-width: 1024px) {
    .references__logos {
        margin-bottom: var(--space-16);
    }
}

.references__cases {
    display: grid;
    gap: var(--space-6);
}

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

@media (min-width: 1024px) {
    .references__cases {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-8);
    }
}

/* ==========================================================================
   ECOSYSTEM SECTION LAYOUT
   ========================================================================== */

.ecosystem__stats {
    display: flex;
    justify-content: center;
    gap: var(--space-8);
    margin-bottom: var(--space-12);
    flex-wrap: wrap;
}

.ecosystem__stat {
    text-align: center;
}

.ecosystem__stat-value {
    display: block;
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--color-primary);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.ecosystem__stat-label {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.ecosystem__partners {
    display: grid;
    gap: var(--space-6);
    margin-bottom: var(--space-10);
}

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

.ecosystem__partner {
    display: block;
    padding: var(--space-6);
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-xl);
    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
    text-align: center;
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
}

.ecosystem__partner:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.95);
    box-shadow:
        0 16px 40px rgba(3, 169, 243, 0.12),
        0 4px 12px rgba(0, 0, 0, 0.06);
    border-color: rgba(3, 169, 243, 0.2);
}

.ecosystem__partner--featured:hover {
    background: linear-gradient(135deg, #0288d1 0%, #01579b 100%);
    box-shadow: 0 16px 48px rgba(3, 169, 243, 0.4);
}

.ecosystem__partner--featured {
    background: linear-gradient(135deg, var(--color-primary) 0%, #0288d1 100%);
    border: none;
    box-shadow: 0 8px 32px rgba(3, 169, 243, 0.3);
    color: var(--color-white);
}

.ecosystem__partner-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 60px;
    margin-bottom: var(--space-4);
}

.ecosystem__partner-logo-img {
    max-height: 50px;
    max-width: 140px;
    width: auto;
    object-fit: contain;
}

.ecosystem__partner-logo-img--light {
    filter: brightness(0) invert(1);
}

.ecosystem__partner-role {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    margin-bottom: var(--space-3);
}

.ecosystem__partner--featured .ecosystem__partner-role {
    color: rgba(255, 255, 255, 0.9);
}

.ecosystem__partner-desc {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
}

.ecosystem__partner--featured .ecosystem__partner-desc {
    color: rgba(255, 255, 255, 0.85);
}

.ecosystem__cta {
    text-align: center;
}

.ecosystem__cta-text {
    font-size: var(--text-lg);
    color: var(--color-gray-700);
    margin-bottom: var(--space-4);
}

/* ==========================================================================
   PROCESS SECTION LAYOUT
   ========================================================================== */

.process__steps {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 1024px) {
    .process__steps {
        flex-direction: row;
        align-items: flex-start;
        max-width: none;
        gap: var(--space-4);
    }

    .step {
        flex: 1;
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .step__number {
        margin-bottom: var(--space-4);
    }

    .step__connector {
        display: none;
    }
}

/* Desktop step connectors - horizontal lines */
@media (min-width: 1024px) {
    .process__steps {
        position: relative;
    }

    .process__steps::before {
        content: '';
        position: absolute;
        top: 24px;
        left: calc(16.66% + 24px);
        right: calc(16.66% + 24px);
        height: 2px;
        background-color: var(--color-gray-200);
        z-index: 0;
    }

    .step {
        position: relative;
        z-index: 1;
    }
}

/* ==========================================================================
   CONTACT SECTION LAYOUT
   ========================================================================== */

.contact__wrapper {
    display: grid;
    gap: var(--space-12);
    align-items: start;
    position: relative;
}

@media (min-width: 1024px) {
    .contact__wrapper {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-16);
    }
}

/* Zajistí že contact sekce má overflow hidden pro znak */
.contact.section-decorated {
    position: relative;
    overflow: hidden;
    width: 100%;
    max-width: 100vw;
}

.contact__info {
    order: 2;
}

@media (min-width: 1024px) {
    .contact__info {
        order: 1;
        padding-top: var(--space-8);
    }
}

.contact__form {
    order: 1;
}

@media (min-width: 1024px) {
    .contact__form {
        order: 2;
    }
}

/* ==========================================================================
   UTILITY CLASSES - Spacing
   ========================================================================== */

/* Margin Top */
.mt-0 { margin-top: var(--space-0); }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }
.mt-16 { margin-top: var(--space-16); }

/* Margin Bottom */
.mb-0 { margin-bottom: var(--space-0); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }
.mb-16 { margin-bottom: var(--space-16); }

/* Padding */
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.py-4 { padding-top: var(--space-4); padding-bottom: var(--space-4); }
.py-6 { padding-top: var(--space-6); padding-bottom: var(--space-6); }
.py-8 { padding-top: var(--space-8); padding-bottom: var(--space-8); }

.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.px-6 { padding-left: var(--space-6); padding-right: var(--space-6); }
.px-8 { padding-left: var(--space-8); padding-right: var(--space-8); }

/* ==========================================================================
   UTILITY CLASSES - Display & Flexbox
   ========================================================================== */

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flex utilities */
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* ==========================================================================
   UTILITY CLASSES - Width & Height
   ========================================================================== */

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }

/* ==========================================================================
   UTILITY CLASSES - Position
   ========================================================================== */

.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }

/* ==========================================================================
   RESPONSIVE VISIBILITY
   ========================================================================== */

/* Hide on mobile, show on desktop */
.desktop-only {
    display: none;
}

@media (min-width: 1024px) {
    .desktop-only {
        display: block;
    }
}

/* Show on mobile, hide on desktop */
.mobile-only {
    display: block;
}

@media (min-width: 1024px) {
    .mobile-only {
        display: none;
    }
}

/* Hide on tablet and below */
@media (max-width: 767px) {
    .tablet-up {
        display: none;
    }
}