/* ============================================
   BASE CSS - MOBILE-FIRST FOUNDATION
   Default styles optimized for mobile devices
   No media queries needed - this IS the mobile base
   Enhanced by layout.css for larger screens
   ============================================ */

/* -------------------- Typography System -------------------- */
body {
    font-size: 16px; /* Optimal for mobile readability */
    line-height: 1.65;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

p {
    margin-bottom: var(--spacing-md);
    line-height: 1.65;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-text-primary);
}

/* Lists */
ul, ol {
    padding-left: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-xs);
    line-height: 1.65;
}

/* -------------------- Navigation -------------------- */
/* All mobile navigation styles are in responsive.css for mobile-first approach */
/* This section reserved for base/desktop navigation if needed */

/* Hamburger dimensions - Default/Desktop */
.nav-toggle {
    width: 30px;
    height: 30px;
}

.nav-toggle .line {
    width: 26px;
    height: 3px;
}

.nav-toggle .line1 {
    top: 10px;
}

.nav-toggle .line2 {
    bottom: 10px;
}

/* Hamburger active state (X icon) - 5px offset for visual balance */
.nav-toggle.active .line1 {
    transform: translateX(-50%) translateY(5px) rotate(45deg);
}

.nav-toggle.active .line2 {
    transform: translateX(-50%) translateY(-5px) rotate(-45deg);
}

/* -------------------- Scroll Indicator -------------------- */
.scroll-indicator {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-primary);
    font-size: 0.75rem;
    text-align: center;
    width: max-content;
}

.scroll-indicator svg {
    opacity: 0.6;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(8px); }
}

/* -------------------- Section Structure -------------------- */
section {
    padding: var(--spacing-2xl) 0;
    position: relative;
    z-index: var(--z-content);
}

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

.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-fill-color: transparent;
}

.section-subtitle {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* -------------------- About Section -------------------- */
.about-section {
    padding: var(--spacing-2xl) 0;
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.about-text {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.8;
}

.about-highlight {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.about-image img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
}

/* -------------------- Feature Tabs (Mobile: Simple Accordion) -------------------- */
.features-tabs-section {
    padding: var(--spacing-2xl) 0 var(--spacing-md) 0;
}

.feature-tabs {
    display: flex;
    gap: var(--spacing-xs);
    overflow-x: auto;
    scrollbar-width: thin;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-xs);
}

.feature-tab {
    background: transparent;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
    min-height: 44px; /* Touch-friendly */
}

.feature-tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-icon {
    font-size: var(--font-size-lg);
}

.tab-content-container {
    position: relative;
    min-height: 300px;
}

.tab-panel {
    display: none;
    opacity: 0;
    animation: fadeIn 0.4s ease forwards;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-inner {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
}

.tab-text h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-primary);
}

.tab-text p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.feature-item {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    font-weight: 500;
    padding: 0.4rem 0;
}

.tab-image {
    order: 2;
    max-height: 250px;
}

.tab-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
}

/* -------------------- Package Cards (Mobile: Vertical Stack) -------------------- */
.packages-section {
    padding: var(--spacing-2xl) 0;
}

.packages-stack {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.package-card {
    background: rgba(10, 22, 40, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.package-card:hover {
    border-color: rgba(74, 144, 226, 0.4);
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.2);
    transform: translateY(-2px);
}

.package-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    text-align: center;
}

.package-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    color: var(--color-text-primary);
    text-align: center;
}

.package-description {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.package-features {
    list-style: none;
    padding: 0;
    margin: 0;
}

.package-features li {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    padding: 0.4rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.package-features li:last-child {
    border-bottom: none;
}

/* -------------------- Product Showcase (Mobile: Simple Stack) -------------------- */
.products-showcase-section {
    padding: var(--spacing-2xl) 0;
}

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

.cascading-card {
    background: rgba(10, 22, 40, 0.9);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    color: inherit;
    display: block;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4),
                0 2px 8px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.cascading-card:active {
    transform: scale(0.98);
}

.cascade-card-header {
    padding: var(--spacing-md) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.18), rgba(107, 93, 209, 0.14));
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 60px;
    position: relative;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.cascade-card-header h3 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    line-height: 1.2;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.card-arrow {
    font-size: var(--font-size-3xl);
    color: var(--color-primary);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
    margin-left: var(--spacing-md);
    opacity: 0.7;
}

.cascading-card:active .card-arrow {
    transform: translateX(4px);
}

.cascade-card-body {
    padding: var(--spacing-lg);
    background: rgba(0, 0, 0, 0.2);
}

.cascade-card-body p {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    font-weight: 400;
}

.product-screenshot img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-sm);
    margin-top: var(--spacing-md);
}

.product-features {
    list-style: none;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
}

.product-features li {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.15), rgba(107, 93, 209, 0.12));
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-primary);
    border: 1px solid rgba(74, 144, 226, 0.25);
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.product-features li:hover {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.25), rgba(107, 93, 209, 0.2));
    border-color: rgba(74, 144, 226, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(74, 144, 226, 0.3);
}

/* Desktop enhancements */
@media (min-width: 768px) {
    .cascade-card-header {
        padding: var(--spacing-xl) var(--spacing-2xl);
        min-height: 80px;
    }

    .cascade-card-header h3 {
        font-size: var(--font-size-2xl);
    }

    .cascade-card-body {
        padding: var(--spacing-2xl);
    }

    /* Hover effects for desktop */
    @media (hover: hover) and (pointer: fine) {
        .cascading-card:hover {
            transform: translateY(-4px) scale(1.01);
            border-color: rgba(74, 144, 226, 0.4);
            box-shadow: 0 16px 48px rgba(74, 144, 226, 0.25),
                        0 8px 24px rgba(0, 0, 0, 0.5),
                        inset 0 1px 0 rgba(255, 255, 255, 0.15);
        }

        .cascading-card:hover .card-arrow {
            transform: translateX(8px);
            opacity: 1;
        }
    }
}

/* -------------------- Contact Section -------------------- */
.contact-section {
    padding: var(--spacing-2xl) 0;
    text-align: center;
}

/* -------------------- Modal -------------------- */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

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

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
}

.modal-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: calc(100% - 20px);
    max-height: 95vh;
    overflow-y: auto;
    transition: transform 0.3s ease;
}

.modal.active .modal-container {
    transform: translate(-50%, -50%) scale(1);
}

.modal-content {
    background: rgba(10, 22, 40, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    position: relative;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--color-text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.modal-header h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    background: linear-gradient(135deg, var(--color-text-primary), var(--color-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.modal-header p {
    color: var(--color-text-secondary);
    font-size: 0.875rem;
}

/* -------------------- Forms -------------------- */
.contact-form {
    position: relative;
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
}

.required {
    color: #ef4444;
    font-weight: 700;
}

.form-input {
    width: 100%;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-sm);
    color: var(--color-text-primary);
    font-size: var(--font-size-base);
    font-family: var(--font-primary);
    transition: all 0.3s ease;
    outline: none;
    min-height: 44px; /* Touch-friendly */
}

.form-input::placeholder {
    color: var(--color-text-muted);
    opacity: 0.6;
}

.form-input:focus {
    border-color: var(--color-primary);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

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

.input-with-validation {
    position: relative;
}

.input-with-validation .form-input {
    padding-right: 45px;
}

.validation-indicator {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

.validation-indicator svg {
    animation: spin 1s linear infinite;
}

.validation-indicator.success {
    color: #4ade80;
}

.validation-indicator.error {
    color: #ef4444;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.validation-message {
    display: block;
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
    min-height: 18px;
    font-weight: 500;
}

.validation-message.success {
    color: #4ade80;
}

.validation-message.info {
    color: var(--color-primary);
}

.error-message {
    display: block;
    color: #ef4444;
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
    min-height: 18px;
    font-weight: 500;
}

.form-group.error .form-input {
    border-color: #ef4444;
    animation: shake 0.36s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-8px); }
    20%, 40%, 60%, 80% { transform: translateX(8px); }
}

.form-submit-btn {
    width: 100%;
    margin-top: var(--spacing-md);
    min-height: 54px;
}

.form-submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-loader svg {
    animation: spin 1s linear infinite;
}

.form-success-message {
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(74, 222, 128, 0.1);
    border: 2px solid rgba(74, 222, 128, 0.3);
    border-radius: var(--border-radius-sm);
    color: #4ade80;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: fadeInUp 0.5s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* -------------------- Footer -------------------- */
.main-footer {
    padding: var(--spacing-xl) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--color-text-muted);
    background: rgba(5, 13, 24, 0.5);
}

.footer-top {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-xs);
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-tagline {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin: 0;
}

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

.footer-column {
    text-align: left;
}

.footer-heading {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-xs);
    padding: var(--spacing-xs) 0;
}

.footer-links a,
.footer-links span {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    transition: color 0.2s ease;
    min-height: 44px; /* Touch-friendly */
    display: inline-flex;
    align-items: center;
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-legal a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.75rem;
    transition: color 0.2s ease;
}

.footer-legal a:hover {
    color: var(--color-primary);
}

.footer-copyright {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin: 0;
}

/* -------------------- Accessibility -------------------- */

/* Focus states for keyboard navigation */
a:focus,
button:focus,
input:focus,
textarea:focus {
    outline: 2px solid var(--color-primary);
    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;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --color-text-primary: #ffffff;
        --color-text-secondary: #ffffff;
        --color-bg-dark: #000000;
    }

    .btn,
    .cascading-card,
    .package-card {
        border-width: 2px;
    }
}

/* -------------------- Utility Classes -------------------- */

/* Image optimization */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

img[loading="lazy"] {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.1), rgba(107, 93, 209, 0.1));
}

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* Visibility utilities */
.hidden { display: none; }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}