/* ===================================
   KREOAPPS - Premium CSS Stylesheet
   =================================== */

/* === CSS Variables & Design System === */
:root {
    /* Colors */
    --color-bg-primary: #0a0a0f;
    --color-bg-secondary: #13131a;
    --color-bg-tertiary: #1a1a24;

    --color-primary: #6366f1;
    --color-primary-light: #818cf8;
    --color-primary-dark: #4f46e5;

    --color-secondary: #8b5cf6;
    --color-accent: #ec4899;

    --color-text-primary: #ffffff;
    --color-text-secondary: #a1a1aa;
    --color-text-tertiary: #71717a;

    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --gradient-accent: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --gradient-warm: linear-gradient(135deg, #fa709a 0%, #fee140 100%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 1rem;
    --radius-lg: 1.5rem;
    --radius-xl: 2rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(99, 102, 241, 0.3);

    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-base: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

/* === Global Styles === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

/* === Utility Classes === */
.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* === Buttons === */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--glass-bg);
    border: 2px solid var(--glass-border);
    color: var(--color-text-primary);
    backdrop-filter: blur(10px);
}

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

/* === Header & Navigation === */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
    transition: var(--transition-base);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) var(--spacing-lg);
}

.nav__logo .logo-img {
    height: 40px;
    width: auto;
}

.nav__list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    align-items: center;
}

.nav__link {
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
}

.nav__link:hover {
    color: var(--color-primary-light);
}

.nav__link.btn-cta {
    background: var(--gradient-primary);
    color: var(--color-text-primary);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-sm);
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav__toggle-line {
    width: 25px;
    height: 2px;
    background: var(--color-text-primary);
    transition: var(--transition-base);
}

/* === Hero Section === */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    padding-top: calc(var(--spacing-3xl) + 70px);
    overflow: hidden;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero__content {
    animation: fadeInUp 0.8s ease-out;
}

.hero__title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

.hero__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    max-width: 500px;
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    flex-wrap: wrap;
}

.hero__stats {
    display: flex;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

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

.stat__number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

.hero__image {
    animation: fadeIn 1s ease-out 0.3s backwards;
}

.hero-img {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 20px 40px rgba(99, 102, 241, 0.3));
}

.hero__background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 8s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: var(--gradient-primary);
    top: -250px;
    right: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--gradient-secondary);
    bottom: -200px;
    left: -100px;
    animation-delay: 2s;
}

/* === Services Section === */
.services {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.services__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition-base);
    z-index: -1;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
    opacity: 0.1;
}

.service-card__icon {
    width: 80px;
    height: 80px;
    margin-bottom: var(--spacing-md);
}

.service-card__icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.service-card__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.service-card__description {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.service-card__features {
    list-style: none;
}

.service-card__features li {
    padding: var(--spacing-xs) 0;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    position: relative;
    padding-left: var(--spacing-md);
}

.service-card__features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: 700;
}

/* === About Section === */
.about {
    padding: var(--spacing-3xl) 0;
}

.about__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.about__text {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: var(--font-size-lg);
    line-height: 1.8;
}

.about__values {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.value-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    transition: var(--transition-base);
}

.value-item:hover {
    background: var(--glass-border);
    transform: translateX(5px);
}

.value-item__icon {
    font-size: var(--font-size-3xl);
}

.value-item__content h4 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.value-item__content p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.about__image-wrapper {
    position: relative;
    width: 100%;
    height: 500px;
}

.gradient-card {
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.gradient-card::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 80%;
    background: var(--gradient-accent);
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.5;
}

.about__stats-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    z-index: 2;
    width: 100%;
    padding: var(--spacing-xl);
}

.about-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    backdrop-filter: blur(10px);
    transition: var(--transition-base);
}

.about-stat:hover {
    background: var(--glass-border);
    transform: scale(1.05);
}

.about-stat__icon {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-xs);
}

.about-stat__number {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.about-stat__label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}


/* === Portfolio Section === */
.portfolio {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.portfolio__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.portfolio-item {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
}

.portfolio-item__image {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
}

.portfolio-item__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-slow);
}

.portfolio-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
}

.placeholder-content {
    text-align: center;
}

.placeholder-content h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.placeholder-content p {
    color: rgba(255, 255, 255, 0.8);
}

.portfolio-item__overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9) 0%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: var(--spacing-xl);
    opacity: 0;
    transition: var(--transition-base);
}

.portfolio-item:hover .portfolio-item__overlay {
    opacity: 1;
}

.portfolio-item:hover .portfolio-item__image img {
    transform: scale(1.1);
}

.portfolio-item__overlay h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-xs);
}

.portfolio-item__overlay p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
}

.portfolio-item__tags {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.tag {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    backdrop-filter: blur(10px);
}

/* Featured Portfolio Item */
.portfolio-item--featured {
    border: 2px solid var(--color-primary);
    box-shadow: 0 0 30px rgba(99, 102, 241, 0.3);
}

.portfolio-item--featured .portfolio-item__image {
    border: 2px solid var(--color-primary);
}

.portfolio-item--featured:hover {
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.5);
}


/* === Process Section === */
.process {
    padding: var(--spacing-3xl) 0;
}

.process__timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.process__timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--gradient-primary);
}

.process-step {
    position: relative;
    padding-left: 80px;
    margin-bottom: var(--spacing-2xl);
}

.process-step__number {
    position: absolute;
    left: 0;
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    font-weight: 800;
    box-shadow: var(--shadow-glow);
}

.process-step__title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.process-step__description {
    color: var(--color-text-secondary);
    line-height: 1.8;
}

/* === Contact Section === */
.contact {
    padding: var(--spacing-3xl) 0;
    background: var(--color-bg-secondary);
}

.contact__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
}

.contact__text {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.contact__details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
}

.contact-detail__icon {
    font-size: var(--font-size-2xl);
}

.contact-detail__content h4 {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.contact-detail__content p {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.contact__form-wrapper {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    backdrop-filter: blur(10px);
}

.contact__form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-input {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--color-bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--color-text-primary);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    transition: var(--transition-base);
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

textarea.form-input {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    width: 100%;
    margin-top: var(--spacing-sm);
}

/* === Footer === */
.footer {
    background: var(--color-bg-primary);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
}

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

.footer-logo {
    height: 40px;
    width: auto;
    margin-bottom: var(--spacing-md);
}

.footer__tagline {
    color: var(--color-text-secondary);
    max-width: 250px;
}

.footer__title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer__links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer__links a {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
}

.footer__links a:hover {
    color: var(--color-primary-light);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.social-link {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: var(--transition-base);
}

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

.footer__bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer__bottom p {
    color: var(--color-text-tertiary);
    font-size: var(--font-size-sm);
}

/* === Animations === */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

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

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

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-20px) rotate(180deg);
    }
}

.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

/* === Responsive Design === */
@media (max-width: 968px) {

    .hero__container,
    .about__grid,
    .contact__grid {
        grid-template-columns: 1fr;
    }

    .hero__image {
        order: -1;
    }

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

    .section-title {
        font-size: var(--font-size-3xl);
    }

    .hero__title {
        font-size: var(--font-size-4xl);
    }
}

@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: rgba(10, 10, 15, 0.98);
        backdrop-filter: blur(20px);
        border-left: 1px solid var(--glass-border);
        padding: var(--spacing-xl);
        transition: var(--transition-base);
    }

    .nav__menu.active {
        right: 0;
    }

    .nav__list {
        flex-direction: column;
        gap: var(--spacing-md);
        align-items: flex-start;
    }

    .nav__toggle {
        display: flex;
    }

    .services__grid,
    .portfolio__grid {
        grid-template-columns: 1fr;
    }

    .hero__buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

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

    .process__timeline::before {
        left: 15px;
    }

    .process-step {
        padding-left: 60px;
    }

    .process-step__number {
        width: 45px;
        height: 45px;
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
    }

    .container {
        padding: 0 var(--spacing-md);
    }

    .hero {
        padding-top: calc(var(--spacing-2xl) + 70px);
    }

    .hero__stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}