/* ============================================
   IDEEN-BUTLER - MOBILE-FIRST CSS
   ============================================ */

/* CSS Variables for Consistency */
:root {
    /* Colors - Modern SaaS Palette (keeping corporate yellow/orange) */
    --color-primary: #FFB74D;      /* Softer, warmer orange */
    --color-primary-dark: #F57C00;  /* Rich orange for accents */
    --color-primary-light: #FFE082; /* Light yellow for highlights */
    --color-gradient-start: #FFF9E6; /* Very soft cream yellow */
    --color-gradient-end: #FFE4B3;   /* Soft apricot */
    --color-text: #2D3436;          /* Deeper charcoal */
    --color-text-light: #636E72;
    --color-text-lighter: #B2BEC3;
    --color-border: #DFE6E9;
    --color-background: #fff;
    --color-background-light: #F8F9FA;
    --color-success: #00B894;
    --color-error: #D63031;
    --color-shadow: rgba(0, 0, 0, 0.08);

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

    /* Typography */
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;

    /* Touch targets */
    --touch-target-min: 2.75rem; /* 44px */

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

/* Typography Hierarchy */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Plus Jakarta Sans', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--color-text);
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    letter-spacing: -0.03em;
}

h2 {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700;
}

h3 {
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    font-weight: 700;
}

h4 {
    font-size: 1.125rem;
    font-weight: 600;
}

p {
    line-height: 1.7;
    letter-spacing: 0.01em;
}

/* ============================================
   MOBILE-FIRST LAYOUT (Default: < 768px)
   ============================================ */

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ============================================
   HEADER (Mobile First)
   ============================================ */

.header {
    background: var(--color-background);
    padding: var(--spacing-sm) 0;
    box-shadow: 0 0.125rem 0.25rem var(--color-shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-xl);
    font-weight: 700;
    min-height: var(--touch-target-min);
    font-family: 'Plus Jakarta Sans', sans-serif;
    letter-spacing: -0.01em;
}

.logo-icon {
    font-size: 1.75rem;
}

.logo-text {
    color: var(--color-text);
    font-weight: 700;
}

.logo-highlight {
    color: var(--color-primary-dark);
    font-weight: 800;
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    min-height: var(--touch-target-min);
    display: flex;
    align-items: center;
    transition: color var(--transition-base);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary);
}

.user-menu {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ============================================
   PROGRESS STEPS (Mobile) - Modern Connected Design
   ============================================ */

.progress-steps {
    background: var(--color-background);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.steps {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 3rem;
    min-width: min-content;
    padding: 0 var(--spacing-sm);
    position: relative;
}

/* Connecting line between steps - only between circles */
.steps::before {
    content: '';
    position: absolute;
    top: 1.25rem;
    left: calc(50% - 1.5rem);
    right: calc(50% - 1.5rem);
    height: 3px;
    background: var(--color-border);
    z-index: 0;
    transition: background var(--transition-base);
}

.step {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-text-lighter);
    font-weight: 600;
    font-size: 0.8125rem;
    white-space: nowrap;
    flex-shrink: 0;
    position: relative;
    z-index: 1;
    background: white;
    padding: 0.25rem 0.5rem;
    border-radius: 2rem;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.step-number {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 50%;
    background: white;
    border: 3px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
    flex-shrink: 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all var(--transition-base);
}

.step.active {
    color: var(--color-primary-dark);
}

.step.active .step-number {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(255, 183, 77, 0.35);
}

.step.completed {
    color: var(--color-success);
}

.step.completed .step-number {
    background: var(--color-success);
    border-color: var(--color-success);
    color: white;
}

.step-text {
    display: none;
}

/* ============================================
   HERO SECTION (Mobile) - Modern SaaS Design
   ============================================ */

.hero {
    background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    padding: var(--spacing-xl) 0;
    min-height: auto;
    position: relative;
    overflow: hidden;
}

/* Subtle pattern overlay for depth */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image:
        radial-gradient(circle at 20% 50%, rgba(255,255,255,0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255,255,255,0.08) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.hero-text {
    flex: 1;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.title-highlight {
    color: var(--color-primary-dark);
    position: relative;
    display: inline;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 2.5vw, 1.25rem);
    color: var(--color-text-light);
    margin-bottom: 0;
    line-height: 1.6;
    font-weight: 500;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
}

.hero-form {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: var(--spacing-xl);
    border-radius: 1.5rem;
    box-shadow:
        0 20px 60px rgba(0,0,0,0.12),
        0 0 0 1px rgba(255,255,255,0.5) inset;
    width: 100%;
    max-width: 520px;
    margin: 0 auto;
    border: 1px solid rgba(255,255,255,0.3);
    text-align: left;
}

/* ============================================
   FORMS (Mobile-Optimized)
   ============================================ */

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--color-text);
    font-size: 0.95rem;
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    letter-spacing: 0.01em;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    border: 2px solid #E8E8E8;
    border-radius: 0.75rem;
    font-size: var(--font-size-base);
    font-family: inherit;
    background: white;
    color: var(--color-text);
    transition: all var(--transition-base);
    min-height: var(--touch-target-min);
    -webkit-appearance: none;
    appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(255, 183, 77, 0.12);
    transform: translateY(-1px);
}

.form-input:hover,
.form-select:hover,
.form-textarea:hover {
    border-color: var(--color-border);
}

.form-select {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23333' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 3rem;
}

.form-textarea {
    min-height: 8rem;
    resize: vertical;
}

/* ============================================
   AUTOCOMPLETE DROPDOWN
   ============================================ */

.input-wrapper {
    position: relative;
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: white;
    border: 2px solid var(--color-border);
    border-top: none;
    border-radius: 0 0 0.75rem 0.75rem;
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    display: none;
    margin-top: -0.5rem;
}

.autocomplete-dropdown.show {
    display: block;
}

.autocomplete-item {
    padding: 0.875rem 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    color: var(--color-text);
    font-size: var(--font-size-base);
}

.autocomplete-item:hover,
.autocomplete-item.highlighted {
    background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
    color: var(--color-primary-dark);
    font-weight: 600;
}

.autocomplete-item:last-child {
    border-radius: 0 0 0.75rem 0.75rem;
}

/* ============================================
   BUTTONS (Touch-Optimized)
   ============================================ */

.btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem 2rem;
    min-height: var(--touch-target-min);
    font-size: 1.05rem;
    font-weight: 600;
    text-decoration: none;
    border: none;
    border-radius: 1rem;
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
    position: relative;
    overflow: hidden;
    width: 100%;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border: none;
    box-shadow: 0 8px 24px rgba(245, 124, 0, 0.25);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(255,255,255,0.3),
        transparent);
    transition: left var(--transition-slow);
}

.btn-primary:hover::before {
    left: 100%;
}

.btn-primary:hover,
.btn-primary:focus {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(245, 124, 0, 0.35);
}

.btn-secondary {
    background: white;
    color: var(--color-text);
    border: 2px solid var(--color-text);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background: var(--color-text);
    color: white;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* ============================================
   CONTENT SECTIONS
   ============================================ */

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

.content-box {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.5rem var(--color-shadow);
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

/* ============================================
   LOADING & RESULTS
   ============================================ */

.loading-container,
.results-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--spacing-xl) var(--spacing-sm);
    text-align: center;
}

.loading-circle,
.results-circle {
    width: 15rem;
    height: 15rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary) 0%, #FFD54F 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    box-shadow: 0 0.5rem 2rem var(--color-shadow);
    position: relative;
}

.loading-circle {
    animation: pulse 2s ease-in-out infinite;
    flex-direction: column;
    gap: 1rem;
}

.loading-icon {
    font-size: 4rem;
    animation: spin 2s linear infinite;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.loading-icon::before {
    content: '';
    position: absolute;
    width: 5rem;
    height: 5rem;
    border: 4px solid transparent;
    border-top-color: #000;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0.5rem 2rem var(--color-shadow);
        transform: scale(1);
    }
    50% {
        box-shadow: 0 0.5rem 3rem rgba(255, 193, 7, 0.4);
        transform: scale(1.05);
    }
}

.loading-content,
.results-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.loading-text {
    font-size: var(--font-size-md);
    font-weight: 700;
    color: var(--color-text);
    text-align: center;
    animation: fadeInOut 2s ease-in-out infinite;
}

@keyframes fadeInOut {
    0%, 100% {
        opacity: 0.7;
    }
    50% {
        opacity: 1;
    }
}

/* Loading dots animation for async image loading */
.loading-dots span {
    color: var(--color-primary-dark);
    font-size: 1.5rem;
    margin: 0 0.25rem;
}

.results-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text);
}

.results-text {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
}

/* ============================================
   IDEA DISPLAY (Mobile)
   ============================================ */

.idea-container {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 0.25rem 1rem var(--color-shadow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    padding: 2rem;
}

.idea-header {
    background: var(--color-primary);
    padding: var(--spacing-lg);
    text-align: center;
}

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

.idea-body {
    padding: var(--spacing-lg);
}

.idea-section {
    margin-bottom: var(--spacing-xl);
}

.idea-section:last-child {
    margin-bottom: 0;
}

.idea-section-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 3px solid var(--color-primary);
}

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

.idea-content ul,
.idea-content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.idea-content li {
    margin: var(--spacing-xs) 0;
}

.idea-content strong {
    font-weight: 700;
    color: var(--color-text);
}

/* ============================================
   CALL TO ACTION (Mobile)
   ============================================ */

.cta-section {
    background: var(--color-primary);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    text-align: center;
    position: relative;
}

.cta-section::before,
.cta-section::after {
    content: '';
    position: absolute;
    width: 2rem;
    height: 2rem;
    border: 3px solid var(--color-text);
}

.cta-section::before {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
}

.cta-section::after {
    bottom: -3px;
    right: -3px;
    border-left: none;
    border-top: none;
}

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

.cta-text {
    font-size: var(--font-size-base);
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* ============================================
   MODAL (Mobile-Optimized)
   ============================================ */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

.modal.show {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: var(--spacing-sm);
}

.modal-content {
    background: white;
    border-radius: 0.5rem;
    width: 100%;
    max-width: 36rem;
    margin: var(--spacing-lg) auto;
    box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.3);
    max-height: 90vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-text);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-text-light);
    padding: var(--spacing-xs);
    min-width: var(--touch-target-min);
    min-height: var(--touch-target-min);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color var(--transition-base);
}

.modal-close:hover,
.modal-close:focus {
    color: var(--color-text);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: var(--spacing-sm);
    flex-direction: column;
}

/* ============================================
   ADMIN DASHBOARD (Mobile)
   ============================================ */

.dashboard-header {
    background: var(--color-primary);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.dashboard-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-text);
}

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

.stat-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 0.5rem;
    box-shadow: 0 0.125rem 0.5rem var(--color-shadow);
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
    margin-bottom: var(--spacing-xs);
}

.stat-value {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--color-text);
}

/* ============================================
   TABLES (Mobile - Horizontal Scroll)
   ============================================ */

.table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: var(--spacing-md) calc(-1 * var(--spacing-sm));
    padding: 0 var(--spacing-sm);
}

table {
    width: 100%;
    min-width: 40rem;
    border-collapse: collapse;
    background: white;
}

th,
td {
    padding: var(--spacing-sm);
    text-align: left;
    border: 1px solid var(--color-border);
    font-size: var(--font-size-sm);
}

th {
    background: var(--color-primary);
    font-weight: 700;
    color: var(--color-text);
    position: sticky;
    top: 0;
    z-index: 10;
}

tr:hover {
    background: var(--color-background-light);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

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

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

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

.d-none {
    display: none !important;
}

.d-block {
    display: block !important;
}

.d-flex {
    display: flex !important;
}

.mb-0 {
    margin-bottom: 0 !important;
}

.mb-1 {
    margin-bottom: var(--spacing-sm) !important;
}

.mb-2 {
    margin-bottom: var(--spacing-md) !important;
}

.mb-3 {
    margin-bottom: var(--spacing-lg) !important;
}

.mt-0 {
    margin-top: 0 !important;
}

.mt-1 {
    margin-top: var(--spacing-sm) !important;
}

.mt-2 {
    margin-top: var(--spacing-md) !important;
}

.mt-3 {
    margin-top: var(--spacing-lg) !important;
}

/* ============================================
   IDEA SECTION (Mobile First)
   ============================================ */

.idea-hero-title {
    text-align: center;
}

.loading-title {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xl);
    font-weight: 700;
}

.loading-text {
    color: var(--color-text);
    line-height: 1.6;
}

/* ============================================
   LEARN MORE SECTION (Mobile First)
   ============================================ */

.learn-more {
    text-align: center;
    padding: var(--spacing-lg) 0;
    background: var(--color-background);
}

.learn-more-btn {
    background: none;
    border: none;
    font-size: var(--font-size-base);
    color: var(--color-text-light);
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-lg);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
    font-family: inherit;
    font-weight: 500;
}

.learn-more-btn:hover,
.learn-more-btn:focus {
    color: var(--color-primary);
}

.learn-more-btn .arrow {
    transition: transform 0.3s ease;
}

/* ============================================
   CONTENT SECTION (Mobile First)
   ============================================ */

.bottom-content {
    background: var(--color-background);
    padding: var(--spacing-xl) 0;
    transition: all 0.3s ease-out;
}

.bottom-content.hidden {
    display: none;
}

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

.content-text {
    flex: 1;
}

.content-box {
    background: var(--color-primary);
    padding: var(--spacing-lg);
    border-radius: 0.5rem;
    position: relative;
}

.content-box h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    line-height: 1.3;
}

.content-box p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.6;
    color: var(--color-text);
}

.content-box p:last-child {
    margin-bottom: 0;
}

.content-image {
    flex: 1;
}

.video-placeholder {
    position: relative;
    background: #ddd;
    height: 18.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.5rem;
    overflow: hidden;
}

.video-time {
    position: absolute;
    bottom: 0.625rem;
    right: 0.625rem;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 0.25rem 0.5rem;
    font-size: var(--font-size-sm);
    border-radius: 0.125rem;
}

.video-label {
    color: #999;
    font-size: var(--font-size-lg);
}

/* Tablet and up: side-by-side content */
@media (min-width: 48rem) {
    .content-section {
        flex-direction: row;
        align-items: stretch;
        gap: var(--spacing-xl);
    }

    .content-text,
    .content-image {
        flex: 1;
    }
}

/* ============================================
   LARGER MOBILE (min-width: 375px)
   ============================================ */

@media (min-width: 23.4375rem) {
    .hero-title {
        font-size: 1.25rem; /* 20px - progressive scaling for standard mobile screens */
    }
}

/* ============================================
   TABLET STYLES (min-width: 768px)
   ============================================ */

@media (min-width: 48rem) {
    :root {
        --font-size-2xl: 2.5rem;
        --font-size-3xl: 3rem;
    }

    .container {
        padding: 0 var(--spacing-lg);
    }

    .logo {
        font-size: var(--font-size-2xl);
    }

    .nav-link {
        font-size: var(--font-size-base);
    }

    .step-text {
        display: inline;
    }

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

    .hero {
        padding: 5rem 0 6rem 0;
    }

    .hero-content {
        max-width: 700px;
        gap: var(--spacing-2xl);
    }

    .hero-form {
        padding: 2.5rem;
    }

    .hero-title {
        font-size: 3rem; /* Larger on desktop */
    }

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

    .loading-circle,
    .results-circle {
        width: 20rem;
        height: 20rem;
    }

    .results-number {
        font-size: 4rem;
    }

    .cta-buttons {
        flex-direction: row;
        justify-content: center;
    }

    .modal-footer {
        flex-direction: row;
        justify-content: flex-end;
    }

    .modal-footer .btn {
        flex: 0 0 auto;
    }
}

/* ============================================
   DESKTOP STYLES (min-width: 1024px)
   ============================================ */

@media (min-width: 64rem) {
    :root {
        --spacing-xl: 4rem;
    }

    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .hero {
        min-height: 32rem;
        display: flex;
        align-items: center;
    }

    .hero-title {
        font-size: 2.5rem; /* 40px - optimal for desktop */
    }

    .hero-form {
        width: 32rem;
    }

    .table-container {
        margin: var(--spacing-md) 0;
        padding: 0;
    }

    table {
        min-width: 100%;
    }
}

/* ============================================
   LARGE DESKTOP (min-width: 1440px)
   ============================================ */

@media (min-width: 90rem) {
    .container {
        max-width: 1400px;
    }
}

/* ============================================
   FOOTER (Mobile First)
   ============================================ */

.footer {
    background: var(--color-background-light);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
    text-align: center;
}

.footer-link {
    color: var(--color-text-light);
    text-decoration: none;
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs);
    transition: color var(--transition-base);
}

.footer-link:hover,
.footer-link:focus {
    color: var(--color-primary);
}

/* Tablet and up: horizontal footer links */
@media (min-width: 48rem) {
    .footer-links {
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-lg);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .header,
    .progress-steps,
    .nav,
    .btn,
    .cta-section,
    .footer {
        display: none !important;
    }

    .idea-container {
        box-shadow: none;
        border: 1px solid var(--color-border);
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

/* Focus visible for keyboard navigation */
*:focus-visible {
    outline: 3px solid var(--color-primary);
    outline-offset: 2px;
}

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

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #FFA000;
        --color-border: #000;
    }

    .btn {
        border-width: 3px;
    }
}