/* ===================================
   Puzzle Root - Main Stylesheet
   Design System: Classic Puzzle Aesthetic
   =================================== */

/* CSS Variables - Design System */
:root {
    /* Colors */
    --color-brand-green: rgb(56, 122, 61);
    --color-navy: #1a2238;
    --color-white: #ffffff;
    --color-amber: #f39c12;
    --color-sage: #e8f5e9;
    --color-gray-light: #f5f5f5;
    --color-gray-medium: #95a5a6;
    --color-error: #e74c3c;
    --color-success: var(--color-brand-green);

    /* Typography */
    --font-heading: 'Futura', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Font Sizes */
    --font-size-base: 16px;
    --font-size-small: 14px;
    --font-size-large: 18px;
    --font-size-h1: clamp(2rem, 5vw, 3rem);
    --font-size-h2: clamp(1.5rem, 4vw, 2.25rem);
    --font-size-h3: 1.25rem;

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

    /* Layout */
    --container-max-width: 1200px;
    --border-radius: 8px;
    --transition-speed: 0.3s;

    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

/* ===================================
   Reset & Base Styles
   =================================== */

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

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--color-navy);
    line-height: 1.6;
    background-color: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--color-navy);
}

h1 { font-size: var(--font-size-h1); }
h2 { font-size: var(--font-size-h2); }
h3 { font-size: var(--font-size-h3); }

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

a {
    color: var(--color-brand-green);
    text-decoration: none;
    transition: color var(--transition-speed);
}

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

a:focus {
    outline: 2px solid var(--color-brand-green);
    outline-offset: 2px;
}

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

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

.section {
    padding: var(--spacing-xl) 0;
}

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

.section-description {
    text-align: center;
    color: var(--color-gray-medium);
    max-width: 600px;
    margin: 0 auto var(--spacing-lg);
}

/* ===================================
   Navigation
   =================================== */

.navbar {
    background-color: var(--color-brand-green);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2px solid var(--color-brand-green);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-link {
    display: flex;
    align-items: center;
}

.logo {
    height: 50px;
    width: auto;
}

/* Hamburger Menu */
.hamburger {
    display: flex;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 25px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.hamburger:focus {
    outline: 2px solid var(--color-brand-green);
    outline-offset: 4px;
}

.hamburger-line {
    width: 30px;
    height: 3px;
    background-color: var(--color-white);
    transition: all var(--transition-speed) ease-in-out;
    border-radius: 2px;
}

.hamburger.active .hamburger-line:nth-child(1) {
    transform: translateY(11px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
    transform: translateY(-11px) rotate(-45deg);
}

/* Navigation Menu */
.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-white);
    box-shadow: var(--shadow-lg);
    transition: right var(--transition-speed) ease-in-out;
    list-style: none;
    padding: var(--spacing-xxl) var(--spacing-lg);
    z-index: 999;
}

.nav-menu.active {
    right: 0;
}

.nav-menu li {
    margin-bottom: var(--spacing-md);
}

.nav-menu a {
    font-family: var(--font-heading);
    font-size: var(--font-size-large);
    color: var(--color-navy);
    display: block;
    padding: var(--spacing-sm);
    transition: all var(--transition-speed);
    border-radius: var(--border-radius);
}

.nav-menu a:hover,
.nav-menu a.active {
    background-color: var(--color-sage);
    color: var(--color-brand-green);
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .hamburger {
        display: none;
    }

    .nav-menu {
        position: static;
        width: auto;
        height: auto;
        background: transparent;
        box-shadow: none;
        padding: 0;
        display: flex;
        flex-direction: row;
        gap: var(--spacing-md);
    }

    .nav-menu li {
        margin-bottom: 0;
    }

    .nav-menu a {
        font-size: var(--font-size-base);
        padding: var(--spacing-xs) var(--spacing-sm);
        color: var(--color-white);
    }

    .nav-menu a:hover,
    .nav-menu a.active {
        background-color: rgba(255, 255, 255, 0.2);
        color: var(--color-white);
    }
}

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

.hero {
    background: linear-gradient(135deg, var(--color-sage) 0%, var(--color-white) 100%);
    padding: var(--spacing-xxl) 0;
    text-align: center;
    border-bottom: 3px solid var(--color-brand-green);
}

.hero-title {
    font-size: var(--font-size-h1);
    margin-bottom: var(--spacing-sm);
    color: var(--color-navy);
}

.hero-subtitle {
    font-size: var(--font-size-large);
    color: var(--color-gray-medium);
    max-width: 600px;
    margin: 0 auto;
}

/* ===================================
   Page Header (for subpages)
   =================================== */

.page-header {
    background-color: var(--color-sage);
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-bottom: 3px solid var(--color-brand-green);
}

.page-header h1 {
    margin-bottom: var(--spacing-xs);
}

.page-header p:not(.solve-counter) {
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-xs);
}

/* ===================================
   Solve Counter
   =================================== */

.solve-counter {
    background-color: var(--color-brand-green);
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    display: inline-block;
    margin: var(--spacing-sm) 0;
}

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

.puzzle-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
}

/* Constrain puzzle cards on Instagram/Website puzzle pages */
.puzzle-list .puzzle-card {
    max-width: 60%;
    width: 100%;
}

@media (max-width: 768px) {
    .puzzle-list .puzzle-card {
        max-width: 100%;
    }
}

/* Carousel for home page */
.puzzle-carousel {
    position: relative;
    overflow: visible;
    padding: 0 var(--spacing-xl);
}

.puzzle-carousel-track {
    display: flex;
    gap: var(--spacing-md);
    overflow-x: auto;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
}

.puzzle-carousel-track::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.puzzle-carousel .puzzle-card {
    flex: 0 0 min(400px, calc(100vw - 8rem));
    scroll-snap-align: center;
    cursor: pointer;
    transition: transform var(--transition-speed);
}

.puzzle-carousel .puzzle-card:hover {
    transform: translateY(-4px);
}

@media (max-width: 768px) {
    .puzzle-carousel .puzzle-card {
        flex: 0 0 calc(100vw - 4rem);
    }
}

.carousel-button {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: var(--color-brand-green);
    color: var(--color-white);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-speed);
    z-index: 10;
}

.carousel-button:hover {
    background-color: #447a48;
    transform: translateY(-50%) scale(1.1);
}

.carousel-button:focus {
    outline: 3px solid var(--color-amber);
    outline-offset: 2px;
}

.carousel-button.prev {
    left: 0;
}

.carousel-button.next {
    right: 0;
}

.carousel-button:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .puzzle-carousel {
        padding: 0;
    }

    .carousel-button {
        width: 32px;
        height: 32px;
        font-size: 1.2rem;
    }
}

.puzzle-card {
    background-color: var(--color-white);
    border: 2px solid var(--color-sage);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-speed);
    display: flex;
    flex-direction: column;
    height: 100%;
}

.puzzle-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-brand-green);
}

.puzzle-card.solved {
    border-color: var(--color-brand-green);
    background-color: var(--color-sage);
}

.puzzle-image-wrapper {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.puzzle-image {
    width: 100%;
    height: auto;
    max-height: 60vh;
    object-fit: contain;
    display: block;
}

.solved-badge {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background-color: var(--color-brand-green);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: var(--font-size-small);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.checkmark {
    font-size: 1.2em;
}

.puzzle-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.puzzle-title {
    margin-bottom: var(--spacing-sm);
    color: var(--color-navy);
}

.puzzle-description {
    color: var(--color-gray-medium);
    margin-bottom: var(--spacing-md);
}

.puzzle-link {
    color: var(--color-brand-green);
    font-size: var(--font-size-small);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

/* Answer Form */
.answer-form {
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-sage);
}

.answer-input-group {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

@media (max-width: 768px) {
    .answer-input-group {
        flex-direction: column;
    }

    .answer-input-group .btn {
        width: 100%;
    }
}

.answer-input {
    flex: 1;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-sage);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-speed);
}

.answer-input:focus {
    outline: none;
    border-color: var(--color-brand-green);
}

.btn {
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
    text-align: center;
    display: inline-block;
}

.btn-primary {
    background-color: var(--color-brand-green);
    color: var(--color-white);
}

.btn-primary:hover {
    background-color: #447a48;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn:focus {
    outline: 3px solid var(--color-amber);
    outline-offset: 2px;
}

/* Feedback Messages */
.feedback-message {
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    font-weight: 500;
    text-align: center;
    margin-top: var(--spacing-sm);
}

.feedback-message.error {
    background-color: #fdecea;
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.feedback-message.success {
    background-color: var(--color-sage);
    color: var(--color-brand-green);
    border: 1px solid var(--color-brand-green);
}

/* Solved State Display */
.puzzle-solved {
    background-color: var(--color-sage);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    text-align: center;
    margin-top: auto;
}

.puzzle-solved h4 {
    color: var(--color-brand-green);
    margin-bottom: var(--spacing-xs);
    font-size: var(--font-size-large);
}

.puzzle-solved-answer {
    font-size: var(--font-size-large);
    font-weight: 600;
    color: var(--color-navy);
    font-family: var(--font-heading);
}

/* ===================================
   About Section
   =================================== */

.about-section {
    background-color: var(--color-gray-light);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h3 {
    color: var(--color-brand-green);
    margin-top: var(--spacing-lg);
}

.about-text h3:first-child {
    margin-top: 0;
}

/* Social Links */
.social-links {
    text-align: center;
    margin-top: var(--spacing-xl);
}

.social-links h3 {
    margin-bottom: var(--spacing-md);
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--color-brand-green);
    color: var(--color-white);
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: all var(--transition-speed);
}

.social-link:hover {
    background-color: #447a48;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: var(--color-white);
}

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

.contact-section {
    background-color: var(--color-white);
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--color-navy);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--color-sage);
    border-radius: var(--border-radius);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    transition: border-color var(--transition-speed);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-brand-green);
}

.form-status {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    text-align: center;
    font-weight: 500;
}

.hidden {
    display: none !important;
}

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

.footer {
    background-color: var(--color-navy);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    text-align: center;
    margin-top: var(--spacing-xxl);
}

.footer p {
    margin: 0;
}

/* ===================================
   Utility Classes
   =================================== */

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ===================================
   Responsive Design
   =================================== */

@media (min-width: 768px) {
    .puzzle-list {
        gap: var(--spacing-xl);
    }

    .puzzle-content {
        padding: var(--spacing-lg);
    }
}

@media (min-width: 1024px) {
    .hero {
        padding: var(--spacing-xxl) 0 5rem;
    }

    .section {
        padding: 4rem 0;
    }
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}