/* ============================================
   CSS Variables (Color Scheme)
   ============================================ */
:root {
    --color-primary-bg: #0F172A;
    --color-primary-accent: #2563EB;
    --color-secondary-accent: #22D3EE;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #94A3B8;
    --color-neutral: #1E293B;
    --color-success: #10B981;
    --color-error: #EF4444;
    
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    --transition-base: 0.3s ease;
    --transition-fast: 0.15s ease;
    
    --border-radius: 0.5rem;
    --border-radius-lg: 1rem;
    
    --max-width: 1200px;
    --max-width-narrow: 800px;
}

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

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

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

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.2;
}

h1 {
    font-size: clamp(2rem, 5vw, 4rem);
    font-weight: 700;
}

h2 {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.5rem);
}

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover,
a:focus {
    color: var(--color-secondary-accent);
    outline: none;
}

/* ============================================
   Layout Utilities
   ============================================ */
.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.main-content {
    position: relative;
    z-index: 1;
}

/* ============================================
   Particles Background
   ============================================ */
.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    background-color: var(--color-primary-bg);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl) var(--spacing-md);
    position: relative;
    text-align: center;
}

.hero__content {
    max-width: var(--max-width-narrow);
    width: 100%;
}

.brand-mark {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.brand-mark__symbol {
    font-family: var(--font-mono);
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: var(--color-secondary-accent);
    font-weight: 500;
}

.brand-text {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 8vw, 5rem);
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--color-text-primary);
    text-transform: uppercase;
    margin: 0;
    background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary-accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__tagline {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.rocket {
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    font-weight: 400;
}

.hero__description {
    font-size: clamp(0.95rem, 2vw, 1.1rem);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.7;
    font-weight: 400;
}

.hero__cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   CTA Button
   ============================================ */
.cta-button {
    font-family: var(--font-heading);
    font-size: 1rem;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-primary-accent);
    color: var(--color-text-primary);
    border: 2px solid var(--color-primary-accent);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: inline-block;
    text-align: center;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.cta-button:hover::before,
.cta-button:focus::before {
    left: 100%;
}

.cta-button:hover,
.cta-button:focus {
    background: var(--color-secondary-accent);
    border-color: var(--color-secondary-accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(34, 211, 238, 0.3);
    outline: none;
}

.cta-button:active {
    transform: translateY(0);
}

.cta-button--secondary {
    background: transparent;
    border-color: var(--color-primary-accent);
    color: var(--color-primary-accent);
}

.cta-button--secondary:hover,
.cta-button--secondary:focus {
    background: var(--color-primary-accent);
    color: var(--color-text-primary);
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.3);
}

.cta-button--form {
    width: 100%;
    margin: 0;
}

/* ============================================
   Services Section
   ============================================ */
.services {
    padding: var(--spacing-2xl) var(--spacing-md);
    position: relative;
}

.services__header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.services__heading {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
}

.services__subtitle {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin: 0;
}

.services-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
    max-width: var(--max-width);
    margin: 0 auto;
}

.service-card {
    background: var(--color-neutral);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: left;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(34, 211, 238, 0.1) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.service-card:hover::before {
    opacity: 1;
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--color-primary-accent);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.3);
}

.service-card__icon {
    width: 64px;
    height: 64px;
    margin-bottom: var(--spacing-lg);
    color: var(--color-primary-accent);
    transition: all var(--transition-base);
    flex-shrink: 0;
}

.service-card:hover .service-card__icon {
    color: var(--color-secondary-accent);
    transform: scale(1.1);
}

.service-card__icon svg {
    width: 100%;
    height: 100%;
}

.service-card__title {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-primary);
    position: relative;
    z-index: 1;
    font-size: 1.5rem;
}

.service-card__description {
    color: var(--color-text-secondary);
    font-size: 1rem;
    line-height: 1.7;
    position: relative;
    z-index: 1;
    margin-bottom: var(--spacing-lg);
}

.service-card__features {
    list-style: none;
    padding: 0;
    margin: 0;
    position: relative;
    z-index: 1;
    flex: 1;
}

.service-card__features li {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
    padding-left: var(--spacing-lg);
    position: relative;
    margin-bottom: var(--spacing-sm);
}

.service-card__features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--color-primary-accent);
    border-radius: 50%;
    transition: all var(--transition-base);
}

.service-card:hover .service-card__features li::before {
    background: var(--color-secondary-accent);
    transform: scale(1.2);
}

/* ============================================
   Visual Effects Section
   ============================================ */
.visual-effects {
    padding: var(--spacing-2xl) var(--spacing-md);
    text-align: center;
    position: relative;
}

.visual-effects__text {
    font-size: clamp(1.125rem, 2.5vw, 1.5rem);
    color: var(--color-text-secondary);
    font-style: italic;
    max-width: var(--max-width-narrow);
    margin: 0 auto;
}

/* ============================================
   Contact / Form Section
   ============================================ */
.contact {
    padding: var(--spacing-2xl) var(--spacing-md);
    position: relative;
}

.contact__heading {
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.contact__subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xl);
    font-size: 1.1rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact__wrapper {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.contact-form {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-sm);
}

.form-group {
    margin: 0;
    position: relative;
}

.form-group--floating {
    position: relative;
}

.form-label {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--color-text-secondary);
    font-size: 1rem;
    pointer-events: none;
    transition: all var(--transition-base);
    background: var(--color-neutral);
    padding: 0 var(--spacing-xs);
    z-index: 1;
    line-height: 1;
}

.form-group--floating .form-label {
    top: 0.75rem;
    transform: translateY(0);
}

.form-group--floating textarea + .form-label {
    top: 0.875rem;
    transform: translateY(0);
}

.form-group--floating .form-input:focus + .form-label,
.form-group--floating .form-input:not(:placeholder-shown) + .form-label,
.form-group--floating .form-textarea:focus + .form-label,
.form-group--floating .form-textarea:not(:placeholder-shown) + .form-label {
    top: 0;
    transform: translateY(-50%);
    font-size: 0.85rem;
    color: var(--color-primary-accent);
}

.form-group--floating textarea:focus + .form-label,
.form-group--floating textarea:not(:placeholder-shown) + .form-label {
    top: 0;
    transform: translateY(-50%);
}

.form-input,
.form-textarea {
    width: 100%;
    padding: var(--spacing-md);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--color-text-primary);
    background: var(--color-neutral);
    border: 2px solid rgba(37, 99, 235, 0.3);
    border-radius: var(--border-radius);
    transition: all var(--transition-base);
    outline: none;
    resize: vertical;
}

.form-group--floating .form-input,
.form-group--floating .form-textarea {
    padding-top: 1.5rem;
    padding-bottom: 0.75rem;
}

.form-textarea {
    min-height: 120px;
    font-family: var(--font-body);
    line-height: 1.6;
}

.form-group--floating .form-textarea {
    padding-top: 1.75rem;
    padding-bottom: 0.75rem;
}

.form-input:focus {
    border-color: var(--color-primary-accent);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input::placeholder {
    color: transparent;
    opacity: 0;
}

.form-textarea::placeholder {
    color: transparent;
    opacity: 0;
}

.form-input.error {
    border-color: var(--color-error);
}

.form-input.error:focus {
    border-color: var(--color-error);
    box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.form-error {
    display: block;
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
    min-height: 1.25rem;
}

.contact__success {
    max-width: 1000px;
    margin: var(--spacing-lg) auto 0;
    padding: var(--spacing-md);
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--color-success);
    border-radius: var(--border-radius);
    text-align: center;
    color: var(--color-success);
}

.contact__success[hidden] {
    display: none;
}

/* ============================================
   Toast Notifications
   ============================================ */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    min-width: 300px;
    max-width: 500px;
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--color-neutral);
    border: 2px solid;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    pointer-events: auto;
    animation: toastSlideIn 0.3s ease-out;
    position: relative;
    overflow: hidden;
}

.toast::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: currentColor;
}

.toast--success {
    border-color: var(--color-success);
    color: var(--color-success);
}

.toast--error {
    border-color: var(--color-error);
    color: var(--color-error);
}

.toast--info {
    border-color: var(--color-primary-accent);
    color: var(--color-primary-accent);
}

.toast__icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.toast__icon svg {
    width: 100%;
    height: 100%;
    fill: currentColor;
}

.toast__message {
    flex: 1;
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-text-primary);
}

.toast__close {
    flex-shrink: 0;
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    cursor: pointer;
    padding: var(--spacing-xs);
    line-height: 1;
    transition: color var(--transition-base);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.toast__close:hover,
.toast__close:focus {
    color: var(--color-text-primary);
    outline: none;
}

.toast__close svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

@keyframes toastSlideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast--removing {
    animation: toastSlideOut 0.3s ease-in forwards;
}

@keyframes toastSlideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .toast-container {
        top: var(--spacing-md);
        right: var(--spacing-md);
        left: var(--spacing-md);
    }
    
    .toast {
        min-width: auto;
        max-width: 100%;
    }
    
    .contact {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .contact__subtitle {
        margin-bottom: var(--spacing-lg);
        font-size: 1rem;
    }
}

/* ============================================
   WhatsApp Card
   ============================================ */
.contact__whatsapp {
    display: flex;
    align-items: center;
    justify-content: center;
}

.whatsapp-card {
    background: var(--color-neutral);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    width: 100%;
    max-width: 400px;
    transition: all var(--transition-base);
}

.whatsapp-card:hover {
    border-color: var(--color-primary-accent);
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(37, 99, 235, 0.2);
}

.whatsapp-card__icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--spacing-md);
    color: #25D366;
    display: flex;
    align-items: center;
    justify-content: center;
}

.whatsapp-card__icon svg {
    width: 100%;
    height: 100%;
}

.whatsapp-card__title {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.whatsapp-card__description {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.whatsapp-button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: #25D366;
    color: var(--color-text-primary);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all var(--transition-base);
    text-decoration: none;
}

.whatsapp-button:hover,
.whatsapp-button:focus {
    background: #20BA5A;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.3);
    outline: none;
}

.whatsapp-button__icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    padding: var(--spacing-xl) var(--spacing-md);
    text-align: center;
    border-top: 1px solid rgba(37, 99, 235, 0.2);
    margin-top: var(--spacing-2xl);
}

.footer__copyright {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.footer__tagline {
    color: var(--color-text-secondary);
    font-size: 0.85rem;
    font-style: italic;
}

/* ============================================
   Responsive Design (Tablet)
   ============================================ */
@media (min-width: 768px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero__cta {
        flex-wrap: nowrap;
    }
    
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .hero {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .brand-mark {
        gap: var(--spacing-md);
    }
    
    .form-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* ============================================
   Responsive Design (Desktop)
   ============================================ */
@media (min-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hero {
        padding: var(--spacing-2xl) var(--spacing-md);
    }
    
    .services,
    .visual-effects,
    .contact {
        padding: var(--spacing-2xl) var(--spacing-lg);
    }
    
    .service-card {
        padding: var(--spacing-xl);
    }
    
    .contact__wrapper {
        grid-template-columns: 1.2fr 1fr;
        align-items: start;
    }
    
    .whatsapp-card {
        position: sticky;
        top: var(--spacing-lg);
    }
}

/* ============================================
   Responsive Design (Mobile - Extra Small)
   ============================================ */
@media (max-width: 480px) {
    .hero {
        padding: var(--spacing-lg) var(--spacing-sm);
    }
    
    .hero__cta {
        flex-direction: column;
        width: 100%;
    }
    
    .cta-button {
        width: 100%;
    }
    
    .services,
    .visual-effects,
    .contact {
        padding: var(--spacing-xl) var(--spacing-sm);
    }
    
    .service-card {
        padding: var(--spacing-md);
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .whatsapp-card {
        padding: var(--spacing-lg);
    }
    
    .contact__subtitle {
        font-size: 1rem;
    }
    
    .contact__wrapper {
        gap: var(--spacing-lg);
    }
    
    .form-group--floating .form-input,
    .form-group--floating .form-textarea {
        padding-top: 1.25rem;
        padding-bottom: 0.625rem;
    }
    
    .form-group--floating .form-textarea {
        padding-top: 1.5rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
    
    .rocket {
        animation: none;
    }
}

.cta-button:focus-visible,
.form-input:focus-visible,
a:focus-visible {
    outline: 2px solid var(--color-secondary-accent);
    outline-offset: 2px;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

button:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .particles-container {
        display: none;
    }
    
    .hero {
        min-height: auto;
        page-break-after: always;
    }
}