/* ==========================================================================
   Minimal Reset
   ========================================================================== */

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

html,
body {
    margin: 0;
    padding: 0;
}

body {
    min-height: 100vh;
}

img,
picture,
video,
canvas,
svg {
    display: block;
    max-width: 100%;
}

button,
input,
textarea,
select {
    font: inherit;
}

a {
    color: inherit;
}

/* ==========================================================================
   Design Tokens (Variables)
   ========================================================================== */

:root {
    /* Colors */
    --color-bg-body: #f3f4f6;
    --color-bg-page: #f8fafc;
    --color-text-main: #111827;
    --color-text-muted: #4b5563;
    --color-text-soft: #6b7280;
    --color-border-subtle: #e5e7eb;
    --color-border-input: #d1d5db;
    --color-accent: #b91c1c;
    --color-accent-hover: #991b1b;
    --color-accent-soft: #fecaca;
    --color-primary: #111827;
    --color-success: #15803d;
    --color-success-strong: #16a34a;
    --color-success-bg: #f0fdf4;
    --color-success-border: #86efac;
    --color-info: #2563eb;
    --color-input-focus: #4f46e5;
    --color-input-focus-ring: rgba(129, 140, 248, 0.4);
    --color-error: #dc2626;
    --color-error-bg: #fef2f2;
    --color-error-border: #fca5a5;

    /* Spacing scale */
    --space-0: 0;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;

    /* Radii */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 999px;

    /* Shadows */
    --shadow-soft: 0 1px 3px rgba(15, 23, 42, 0.08);
    --shadow-strong: 0 25px 50px -12px rgba(15, 23, 42, 0.25);

    /* Transition durations */
    --transition-fast: 150ms;
    --transition-normal: 250ms;
    --transition-slow: 350ms;

    /* Font sizes */
    --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: 1.875rem;
    --font-size-4xl: 2.25rem;

    /* Font weights */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Line heights */
    --leading-tight: 1.25;
    --leading-snug: 1.375;
    --leading-normal: 1.5;
    --leading-relaxed: 1.7;
}

/* ==========================================================================
   Base
   ========================================================================== */

html {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: var(--leading-normal);
    color: var(--color-text-main);
}

.body-bg {
    background-color: var(--color-bg-body);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.page-container {
    background-color: var(--color-bg-page);
    box-shadow: var(--shadow-strong);
    margin: 0 auto;
    min-height: 100vh;
    width: 100%;
    max-width: 72rem;
    padding: var(--space-4) var(--space-8) calc(var(--space-12) + var(--space-4));
}

@media (min-width: 1024px) {
    .page-container {
        padding-inline: var(--space-12);
    }
}

.container {
    max-width: 72rem;
    margin-inline: auto;
}

.section-padding {
    padding-block: var(--space-20);
}

.text-default {
    color: var(--color-text-muted);
}

.narrow {
    max-width: 56rem;
}

.wide {
    max-width: 80rem;
}

.max-3col {
    max-width: 48rem;
    margin-inline: auto;
}

/* ==========================================================================
   Typography
   ========================================================================== */

.section-label {
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
}

.section-title {
    font-size: var(--font-size-3xl);
    line-height: var(--leading-snug);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-main);
    margin-bottom: var(--space-2);
}

.section-title-tight {
    margin-bottom: var(--space-2);
}

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

.hero-description {
    margin-bottom: var(--space-8);
}

.subheading {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--space-3);
}

.body-text {
    font-size: var(--font-size-base);
    color: #374151;
    margin-bottom: var(--space-6);
    line-height: var(--leading-relaxed);
}

.body-text-spaced p {
    margin-bottom: var(--space-2);
}

.body-strong-label {
    font-weight: var(--font-weight-medium);
    color: #374151;
}

/* ==========================================================================
   Links
   ========================================================================== */

.link {
    text-decoration: underline;
    transition: all var(--transition-normal) ease-in-out;
    color: inherit;
}

.link:hover {
    text-decoration: none;
    color: var(--color-accent);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-accent);
    color: #ffffff;
    border: none;
    padding: var(--space-2) var(--space-6);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    cursor: pointer;
    transition: background-color var(--transition-fast) ease-in-out;
    text-decoration: none;
}

.btn-primary:hover {
    background-color: var(--color-accent-hover);
}

.btn-secondary {
    display: inline-block;
    background-color: #000000;
    color: #ffffff;
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    text-align: center;
    text-decoration: none;
    transition: background-color var(--transition-fast) ease-in-out;
}

.btn-secondary:hover {
    background-color: var(--color-accent-hover);
}

.btn-center {
    display: flex;
    margin-inline: auto;
}

/* ==========================================================================
   Utility Helpers
   ========================================================================== */

.centered-row {
    display: flex;
    justify-content: center;
}

.centered-column {
    max-width: 48rem;
    margin-inline: auto;
    text-align: center;
}

.centered-column.large {
    max-width: 44rem;
}

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

/* ==========================================================================
   Hero
   ========================================================================== */

.hero-layout {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-block: var(--space-16);
    gap: var(--space-8);
}

.hero-text {
    flex: 1;
    text-align: center;
}

.hero-image-wrapper {
    flex: 1;
}

.hero-image {
    width: 100%;
    max-width: 28rem;
    margin-inline: auto;
    border-radius: var(--radius-md);
    object-fit: cover;
    object-position: center;
}

@media (min-width: 768px) {
    .hero-layout {
        flex-direction: row;
        align-items: center;
        padding-inline: var(--space-5);
    }

    .hero-text {
        text-align: left;
        margin-bottom: 0;
        padding-right: var(--space-16);
    }

    .hero-image-wrapper {
        width: 50%;
    }

    .hero-image {
        max-width: none;
    }
}

/* ==========================================================================
   Feature / "Better Way" Section
   ========================================================================== */

.section-flex {
    display: flex;
    flex-wrap: wrap;
    padding: var(--space-16) var(--space-5);
    gap: var(--space-6);
}

.section-flex .section-title {
    flex: 1 1 100%;
}

@media (min-width: 768px) {
    .section-flex .section-title {
        flex: 0 0 40%;
    }

    .feature-list {
        flex: 0 0 55%;
        padding-left: var(--space-6);
        margin-top: 0;
    }
}

/* ==========================================================================
   Lists
   ========================================================================== */

.feature-list,
.card-list {
    list-style: none;
    padding: 0;
    margin: var(--space-4) 0;
}

.feature-list li,
.card-list li {
    /* display: flex; */
    align-items: flex-start;
    gap: var(--space-2);
}

.checkmark {
    color: var(--color-success);
    margin-top: 0.2rem;
}

/* ==========================================================================
   Cards
   ========================================================================== */

.card {
    background-color: #ffffff;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-subtle);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
}

/* Testimonial cards */

.card-testimonial {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.card-text-lg {
    font-size: var(--font-size-lg);
    color: #374151;
    line-height: var(--leading-relaxed);
    flex-grow: 1;
}

.card-divider {
    display: inline-block;
    height: 0.25rem;
    width: 2.5rem;
    border-radius: var(--radius-full);
    background-color: var(--color-accent);
    margin: var(--space-8) 0 var(--space-6);
}

.card-name {
    color: var(--color-text-main);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.05em;
    font-size: var(--font-size-sm);
    text-transform: uppercase;
}

.card-level {
    color: var(--color-text-soft);
    font-size: var(--font-size-sm);
}

/* Quote icon */

.quote-icon {
    width: 2rem;
    height: 2rem;
    color: #9ca3af;
    margin-bottom: var(--space-8);
}

/* Lesson cards */

.lesson-section {
    width: 100%;
    max-width: 72rem;
    margin-inline: auto;
    padding: var(--space-12) 5%;
}

.card-lesson {
    display: flex;
    flex-direction: column;
}

.card-image-wrapper {
    position: relative;
}

.card-image {
    width: 100%;
    height: 12rem;
    object-fit: cover;
    display: block;
}

.badge-wrapper {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
}

.badge-circle {
    display: block;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: var(--radius-full);
}

.badge-green {
    background-color: var(--color-success-strong);
}

.badge-blue {
    background-color: var(--color-info);
}

.badge-diamond {
    display: block;
    width: 1.25rem;
    height: 1.25rem;
    background-color: #000000;
    transform: rotate(45deg);
}

.card-content {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
}

.card-body-text {
    font-size: var(--font-size-sm);
    color: #4b5563;
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
    flex-grow: 1;
}

.card-list {
    font-size: var(--font-size-sm);
    color: #4b5563;
    margin-bottom: var(--space-4);
}

.card-meta {
    font-size: var(--font-size-sm);
    color: var(--color-text-soft);
    margin-bottom: var(--space-4);
}

.card-meta-label {
    font-weight: var(--font-weight-medium);
    color: #374151;
    margin-right: 0.25rem;
}

.card-cta {
    margin-top: auto;
}

/* FAQ cards */

.card-faq {
    padding: var(--space-5);
    border-radius: var(--radius-lg);
}

.faq-question {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: #374151;
    margin: 0;
}

.faq-answer {
    margin-top: var(--space-4);
    font-size: var(--font-size-sm);
    color: #4b5563;
    line-height: var(--leading-relaxed);
}

/* ==========================================================================
   Grids
   ========================================================================== */

.grid-3 {
    display: grid;
    gap: var(--space-12);
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .grid-3 {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.grid-lesson {
    display: grid;
    gap: var(--space-8);
    grid-template-columns: 1fr;
    max-width: 72rem;
    margin-inline: auto;
    padding-inline: 5%;
    padding-bottom: var(--space-12);
}

@media (min-width: 640px) {
    .grid-lesson {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.grid-2 {
    display: grid;
    gap: var(--space-10);
    grid-template-columns: 1fr;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

.grid-faq {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
    padding-block: var(--space-8);
    max-width: 72rem;
    margin-inline: auto;
}

@media (min-width: 768px) {
    .grid-faq {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* ==========================================================================
   Contact Form
   ========================================================================== */

.contact-section {
    color: var(--color-text-muted);
}

.contact-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-main);
    margin-bottom: var(--space-4);
}

.contact-form-wrapper {
    max-width: 40rem;
    margin-inline: auto;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.form-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.form-field {
    flex: 1 1 100%;
}

.form-field.full-width {
    flex-basis: 100%;
}

@media (min-width: 768px) {
    .form-field {
        flex: 1 1 48%;
    }

    .form-field.full-width {
        flex-basis: 100%;
    }
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-1);
}

.required-mark {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    line-height: 1;
    aria-hidden: true;
}

.form-input,
.form-textarea {
    width: 100%;
    background-color: rgba(243, 244, 246, 0.8);
    border-radius: var(--radius-md);
    border: 1px solid var(--color-border-input);
    padding: 0.25rem var(--space-3);
    font-size: var(--font-size-base);
    color: #374151;
    outline: none;
    transition:
        border-color var(--transition-fast) ease-in-out,
        box-shadow var(--transition-fast) ease-in-out,
        background-color var(--transition-fast) ease-in-out;
}

.form-textarea {
    height: 8rem;
    resize: none;
    padding-block: 0.25rem;
}

.form-input:focus,
.form-textarea:focus {
    border-color: var(--color-input-focus);
    background-color: #ffffff;
    box-shadow: 0 0 0 2px var(--color-input-focus-ring);
}

/* Validation states */
.form-input[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
    border-color: var(--color-error-border);
    background-color: var(--color-error-bg);
}

.form-input[aria-invalid="true"]:focus,
.form-textarea[aria-invalid="true"]:focus {
    border-color: var(--color-error);
    box-shadow: 0 0 0 2px rgba(220, 38, 38, 0.25);
}

.form-input[aria-invalid="false"]:not(:placeholder-shown),
.form-textarea[aria-invalid="false"]:not(:placeholder-shown) {
    border-color: var(--color-success-border);
    background-color: var(--color-success-bg);
}

.field-error {
    display: none;
    align-items: center;
    gap: var(--space-1);
    margin-top: var(--space-1);
    font-size: var(--font-size-sm);
    color: var(--color-error);
}

.field-error.visible {
    display: flex;
}

.field-error svg {
    flex-shrink: 0;
}

/* Success banner */
#form-success {
    display: none;
    align-items: center;
    gap: var(--space-3);
    background-color: var(--color-success-bg);
    border: 1px solid var(--color-success-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4) var(--space-6);
    color: var(--color-success);
    font-weight: var(--font-weight-medium);
    margin-top: var(--space-4);
}

#form-success.visible {
    display: flex;
}

/* Form-level error summary */
#form-error-summary {
    display: none;
    background-color: var(--color-error-bg);
    border: 1px solid var(--color-error-border);
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-4);
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-4);
}

#form-error-summary.visible {
    display: block;
}

#form-error-summary ul {
    margin: var(--space-1) 0 0 var(--space-4);
    padding: 0;
}

#form-error-summary li {
    margin-bottom: 0.2rem;
}

/* ==========================================================================
   Language Nav
   ========================================================================== */

.lang-nav {
    position: fixed;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 72rem;
    border-top: 4px solid var(--color-accent);
    background-color: rgba(248, 250, 252, 0.9);
    backdrop-filter: blur(8px);
}

.lang-nav-inner {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-8);
    padding-block: var(--space-2);
}

.lang-link {
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-sm);
    min-width: 44px;
    text-align: center;
    text-decoration: none;
    color: var(--color-text-main);
    font-size: var(--font-size-sm);
}

.lang-link:active {
    background-color: #e5e7eb;
}

.label-mobile {
    display: inline;
}

.label-desktop {
    display: none;
}

@media (min-width: 640px) {
    .label-mobile {
        display: none;
    }

    .label-desktop {
        display: inline;
    }
}