/* ==========================================================================
   Global Styles & Variables
   ========================================================================== */

:root {
    --color-background: #111827;
    --color-surface: #1F2937;
    --color-primary: #8B5CF6;
    --color-primary-hover: #7C3AED;
    --color-text-primary: #F3F4F6;
    --color-text-secondary: #9CA3AF;
    --font-family-headings: 'Space Grotesk', sans-serif;
    --font-family-body: 'Inter', sans-serif;
    --header-height: 70px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-body);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

h1, h2, h3 {
    font-family: var(--font-family-headings);
    font-weight: 700;
}

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

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

ul {
    list-style: none;
}

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

/* ==========================================================================
   Header
   ========================================================================== */

.header {
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-surface);
}

.header__container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: var(--header-height);
}

.header__logo {
    font-family: var(--font-family-headings);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

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

.nav__list {
    display: none; /* Hidden on mobile */
}

.nav__link {
    padding: 0.5rem 1rem;
    font-weight: 500;
}

.nav__link--cta {
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    border-radius: 6px;
    padding: 0.6rem 1.2rem;
    transition: background-color 0.2s ease-in-out;
}

.nav__link--cta:hover {
    background-color: var(--color-primary-hover);
    color: var(--color-text-primary);
}

.header__menu-button {
    background: none;
    border: none;
    color: var(--color-text-primary);
    cursor: pointer;
    display: block; /* Shown on mobile */
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
    background-color: var(--color-surface);
    padding-top: 4rem;
    padding-bottom: 2rem;
    border-top: 1px solid rgba(243, 244, 246, 0.1);
}

.footer__container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
}

.footer__logo {
    font-family: var(--font-family-headings);
    font-size: 1.5rem;
    font-weight: 700;
    display: inline-block;
    margin-bottom: 1rem;
}

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

.footer__title {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--color-text-primary);
}

.footer__list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__link {
    color: var(--color-text-secondary);
}

.footer__link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.footer__list--contacts .footer__item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer__icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    color: var(--color-text-secondary);
}

.footer__text {
    color: var(--color-text-secondary);
}


/* ==========================================================================
   Responsive (Tablet & Desktop)
   ========================================================================== */

@media (min-width: 768px) {
    .header__menu-button {
        display: none;
    }

    .nav__list {
        display: flex;
        align-items: center;
        gap: 1rem;
    }

    .footer__container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer__container {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ==========================================================================
   Button Component
   ========================================================================== */
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    font-family: var(--font-family-headings);
    font-weight: 500;
    font-size: 1rem;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    transition: all 0.3s ease;
}

.button:hover {
    background-color: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(139, 92, 246, 0.25);
    color: var(--color-text-primary);
}

.button i {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
}

.button:hover i {
    transform: translateX(4px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
    padding-top: 4rem;
    padding-bottom: 4rem;
    overflow: hidden;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.hero__title {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

/* Typing animation cursor */
.hero__title::after {
    content: '|';
    animation: blink 0.7s infinite;
    color: var(--color-primary);
    display: var(--after-display, inline); /* Use CSS variable */
}


@keyframes blink {
    50% {
        opacity: 0;
    }
}

.hero__description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    max-width: 550px;
    margin-bottom: 2rem;
}

/* Initial state for JS animation */
.hero__description, .hero__cta {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease 0.2s, transform 0.5s ease 0.2s;
}

.hero__description.is-visible, 
.hero__cta.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__image {
    border-radius: 16px;
    animation: float 6s ease-in-out infinite;
    max-width: 450px;
    width: 100%;
}

@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0px); }
}

/* ==========================================================================
   Responsive (Tablet & Desktop for Hero)
   ========================================================================== */

@media (min-width: 768px) {
    .hero__title {
        font-size: 3rem;
    }
}

@media (min-width: 1024px) {
    .hero {
        padding-top: 6rem;
        padding-bottom: 6rem;
    }
    .hero__container {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
        text-align: left;
    }
    .hero__title {
        font-size: 3.5rem;
    }
}

/* ==========================================================================
   Shared Section Header Component
   ========================================================================== */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-header__title {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.section-header__subtitle {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ==========================================================================
   Creativity Section
   ========================================================================== */
.creativity {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: var(--color-surface);
}

.creativity__grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.creativity-card {
    background-color: var(--color-background);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid transparent;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.creativity-card:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
}

.creativity-card__icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--color-surface);
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.5rem;
}

.creativity-card__icon {
    width: 32px;
    height: 32px;
    color: var(--color-primary);
}

.creativity-card__title {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.creativity-card__description {
    color: var(--color-text-secondary);
}


/* ==========================================================================
   Responsive (Tablet & Desktop for Creativity)
   ========================================================================== */
@media (min-width: 768px) {
    .section-header__title {
        font-size: 2.5rem;
    }
    .creativity__grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 2rem;
    }
}

@media (min-width: 1024px) {
    .creativity__grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* ==========================================================================
   Productivity Section
   ========================================================================== */
.productivity {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.productivity__layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.productivity__visual {
    max-width: 450px;
    margin: 0 auto; /* Center on mobile */
}

.productivity__image {
    border-radius: 16px;
    width: 100%;
}

/* Accordion Component */
.accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.accordion__item {
    background-color: var(--color-surface);
    border-radius: 12px;
    border: 1px solid transparent;
    transition: border-color 0.3s ease;
}

.accordion__item.is-active {
    border-color: var(--color-primary);
}

.accordion__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 1.5rem;
    background: none;
    border: none;
    color: var(--color-text-primary);
    font-family: var(--font-family-headings);
    font-size: 1.1rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
}

.accordion__icon {
    width: 24px;
    height: 24px;
    color: var(--color-text-secondary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 1rem;
}

.accordion__item.is-active .accordion__icon {
    transform: rotate(180deg);
    color: var(--color-primary);
}

.accordion__content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.accordion__text {
    padding: 0 1.5rem 1.5rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.accordion__item.is-active .accordion__content {
    /* A large enough value to accommodate content */
    max-height: 200px;
}

/* ==========================================================================
   Responsive (Tablet & Desktop for Productivity)
   ========================================================================== */
@media (min-width: 1024px) {
    .productivity__layout {
        grid-template-columns: 1fr 1.2fr;
        gap: 5rem;
    }
}

/* ==========================================================================
   Learning Section
   ========================================================================== */
.learning {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: var(--color-surface);
}

/* Learning Tabs Component */
.learning-tabs__nav {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.learning-tabs__button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1.5rem;
    background-color: transparent;
    border: 1px solid var(--color-background);
    color: var(--color-text-secondary);
    font-family: var(--font-family-headings);
    font-size: 1rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.learning-tabs__button:hover {
    background-color: var(--color-background);
    color: var(--color-text-primary);
}

.learning-tabs__button.is-active {
    background-color: var(--color-primary);
    color: var(--color-text-primary);
    border-color: var(--color-primary);
}

.learning-tabs__pane {
    display: none; /* Hidden by default */
    grid-template-columns: 1fr;
    align-items: center;
    gap: 2rem;
    animation: fadeIn 0.5s ease;
}

.learning-tabs__pane.is-active {
    display: grid; /* Shown when active */
}

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

.learning-tabs__visual {
    max-width: 500px;
    margin: 0 auto;
}

.learning-tabs__image {
    border-radius: 16px;
    width: 100%;
}

.learning-tabs__title {
    font-size: 1.8rem;
    margin-bottom: 1rem;
}

.learning-tabs__text p {
    color: var(--color-text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
}

/* ==========================================================================
   Responsive (Tablet & Desktop for Learning)
   ========================================================================== */
@media (min-width: 1024px) {
    .learning-tabs__pane {
        grid-template-columns: 1fr 1fr;
        gap: 4rem;
        text-align: left;
    }

    .learning-tabs__pane:nth-child(even) .learning-tabs__visual {
        order: 2; /* Alternate image position */
    }
}

/* ==========================================================================
   Tools Section
   ========================================================================== */
.tools {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.tools__list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.tool-item {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    background-color: var(--color-surface);
    border-radius: 12px;
    border: 1px solid var(--color-surface);
    transition: all 0.3s ease;
    text-decoration: none;
    color: var(--color-text-primary);
}

.tool-item:hover {
    border-color: var(--color-primary);
    transform: translateY(-3px);
    background-color: #2a3647; /* Slightly lighter surface */
}

.tool-item__icon-wrapper {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-background);
    display: flex;
    justify-content: center;
    align-items: center;
}

.tool-item__icon {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.tool-item__info {
    flex-grow: 1;
}

.tool-item__name {
    font-size: 1.2rem;
    margin-bottom: 0.25rem;
    font-weight: 500;
}

.tool-item__description {
    color: var(--color-text-secondary);
}

.tool-item__arrow {
    color: var(--color-text-secondary);
    transition: transform 0.3s ease, color 0.3s ease;
}

.tool-item:hover .tool-item__arrow {
    color: var(--color-primary);
    transform: translateX(5px);
}

/* ==========================================================================
   Contact Section
   ========================================================================== */
.contact {
    padding-top: 5rem;
    padding-bottom: 5rem;
    background-color: var(--color-surface);
}

.contact__layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
}

.contact__title {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.contact__description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
    max-width: 450px;
}

.contact__form-wrapper {
    background-color: var(--color-background);
    padding: 2.5rem;
    border-radius: 16px;
}

/* Form Styles */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-label {
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-text-secondary);
}

.form-input {
    width: 100%;
    padding: 0.8rem 1rem;
    background-color: var(--color-surface);
    border: 1px solid var(--color-surface);
    border-radius: 8px;
    color: var(--color-text-primary);
    font-size: 1rem;
    font-family: var(--font-family-body);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.2);
}

.form-group--captcha #captcha {
    max-width: 150px;
}

.form-group--checkbox {
    flex-direction: row;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

.form-group--checkbox input[type="checkbox"] {
    width: 1.2em;
    height: 1.2em;
    accent-color: var(--color-primary);
}

.form-group--checkbox a {
    color: var(--color-primary);
    text-decoration: underline;
}

.contact-form__submit {
    width: 100%;
}

/* Success Message */
.form-success-message {
    display: none; /* Hidden by default */
    text-align: center;
    padding: 2rem;
    animation: fadeIn 0.5s ease;
}

.form-success-message__icon {
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.form-success-message__icon i {
    width: 50px;
    height: 50px;
}

.form-success-message__title {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
}

.form-success-message__text {
    color: var(--color-text-secondary);
}

/* ==========================================================================
   Responsive (Tablet & Desktop for Contact)
   ========================================================================== */
@media (min-width: 1024px) {
    .contact__layout {
        grid-template-columns: 1fr 1fr;
        gap: 5rem;
    }
}

/* ==========================================================================
   Cookie Pop-up
   ========================================================================== */
.cookie-popup {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-background);
    padding: 1.5rem;
    z-index: 2000;
    transform: translateY(100%);
    transition: transform 0.5s ease-in-out;
    display: none; /* Initially hidden, shown by JS */
}

.cookie-popup.is-visible {
    transform: translateY(0);
}

.cookie-popup__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 1rem;
    max-width: 1200px;
    margin: 0 auto;
}

.cookie-popup__text {
    color: var(--color-text-secondary);
}

.cookie-popup__text a {
    color: var(--color-primary);
    text-decoration: underline;
}

.cookie-popup__button {
    padding: 0.6rem 1.5rem;
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .cookie-popup__content {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}


/* ==========================================================================
   Policy Pages Styles (e.g., privacy.html)
   ========================================================================== */
.pages {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.pages .container {
    max-width: 800px; /* Limit line length for readability */
}

.pages h1 {
    font-size: 2.8rem;
    margin-bottom: 2rem;
}

.pages h2 {
    font-size: 1.8rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.pages p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.pages a {
    color: var(--color-primary);
    text-decoration: underline;
    font-weight: 500;
}

.pages a:hover {
    text-decoration: none;
}

.pages ul {
    list-style: disc;
    padding-left: 2rem;
    margin-bottom: 1.5rem;
}

.pages li {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

.pages strong {
    color: var(--color-text-primary);
    font-weight: 500;
}