/* ===================================
   CSS VARIABLES - Easy Customization
   =================================== */
:root {
    /* Colors */
    --color-background: #000000;
    --color-popover-bg: #FFFFFF;
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #6b7280;
    --color-accent: #000000;
    --color-accent-hover: #1a1a1a;
    --color-success: #10b981;
    --color-error: #ef4444;
    --color-input-border: #e5e7eb;
    --color-input-focus: #000000;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Typography */
    --font-family: 'Habibi', serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-weight-normal: 400;
    --font-weight-medium: 400;
    --font-weight-semibold: 400;
    --font-weight-bold: 400;
    
    /* Layout */
    --popover-max-width: 1000px;
    --popover-border-radius: 24px;
    --input-border-radius: 12px;
    --button-border-radius: 12px;
    
    /* Shadows */
    --shadow-popover: 0 20px 60px rgba(0, 0, 0, 0.3);
    --shadow-button: 0 4px 14px rgba(0, 0, 0, 0.1);
    --shadow-button-hover: 0 6px 20px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===================================
   RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: var(--font-size-base);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-background);
    color: var(--color-text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Screen Reader Only (Accessibility) */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===================================
   MAIN CONTAINER
   =================================== */
.container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: var(--spacing-lg);
    /* Fade-in animation on load */
    animation: fadeIn 0.8s ease-in-out;
}

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

/* ===================================
   POPOVER CARD
   =================================== */
.popover-card {
    background-color: var(--color-popover-bg);
    border-radius: var(--popover-border-radius);
    box-shadow: var(--shadow-popover);
    max-width: var(--popover-max-width);
    max-height: 90vh; /* Ensure it fits in viewport */
    width: 100%;
    display: grid;
    grid-template-columns: 2fr 3fr; /* 40% image, 60% text */
    overflow: hidden;
    position: relative; /* For absolute positioning of badge */
    /* Slide-up animation */
    animation: slideUp 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===================================
   LEFT COLUMN - Image
   =================================== */
.left-column {
    background-image: url('../images/background.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    position: relative;
    overflow: hidden;
    min-height: 400px;
}

.image-container {
    max-width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin: 0;
}

.app-mockup {
    max-width: 100%;
    width: auto;
    height: auto;
    max-height: min(500px, 70vh); /* Responsive to viewport height */
    object-fit: contain;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.15));
    transition: var(--transition-base);
    transform: rotate(-2deg); /* Subtle rotation for visual interest */
}

.app-mockup:hover {
    transform: rotate(-2deg) scale(1.02);
}

/* ===================================
   RIGHT COLUMN - Content
   =================================== */
.right-column {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow-y: auto; /* Allow scroll if content is too tall */
}

/* Logo */
.logo-container {
    margin-bottom: var(--spacing-md);
}

.logo {
    height: 80px;
    width: auto;
    max-width: 80px;
}

/* Launch Badge Container */
.badges-container {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    display: flex;
    gap: 0.5rem;
    z-index: 10;
    flex-wrap: wrap;
    justify-content: flex-end;
}

/* Launch Badge */
.launch-badge {
    padding: 0.375rem 0.875rem;
    background-color: #000000;
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: var(--font-weight-normal);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 100px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Platform Badges (iOS/Android) */
.platform-badge {
    padding: 0.375rem 0.875rem;
    background-color: #e5e7eb;
    color: #4b5563;
    font-size: 0.75rem;
    font-weight: var(--font-weight-normal);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: 100px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

/* Title */
.title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* Description */
.description {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

/* Benefits List */
.benefits-list {
    list-style: none;
    margin: 0 0 var(--spacing-md) 0;
    padding: 0;
}

.benefit-item {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    padding-left: 1.75rem;
    margin-bottom: 0.625rem;
    line-height: 1.25;
    position: relative;
}

.benefit-item::before {
    content: "✦";
    position: absolute;
    left: 0;
    color: var(--color-text-primary);
    font-size: 1rem;
}

.benefit-item:last-child {
    margin-bottom: 0;
}

/* Form Intro */
.form-intro {
    font-size: var(--font-size-base);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
    font-weight: var(--font-weight-medium);
}

/* ===================================
   WAITLIST FORM
   =================================== */
.waitlist-form {
    width: 100%;
}

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

/* Email Input */
.email-input {
    flex: 1;
    padding: 0.875rem 1rem;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    border: 2px solid var(--color-input-border);
    border-radius: var(--input-border-radius);
    outline: none;
    transition: var(--transition-base);
    background-color: #ffffff;
}

.email-input:focus {
    border-color: var(--color-input-focus);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.email-input::placeholder {
    color: #9ca3af;
}

/* Submit Button */
.submit-button {
    padding: 0.875rem 1.75rem;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-family);
    color: #ffffff;
    background-color: var(--color-accent);
    border: none;
    border-radius: var(--button-border-radius);
    cursor: pointer;
    transition: var(--transition-base);
    box-shadow: var(--shadow-button);
    white-space: nowrap;
}

.submit-button:hover {
    background-color: var(--color-accent-hover);
    box-shadow: var(--shadow-button-hover);
    transform: translateY(-2px);
}

.submit-button:active {
    transform: translateY(0);
}

/* ===================================
   MESSAGES (Success/Error)
   =================================== */
.message {
    display: none; /* Hidden by default */
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    border-radius: var(--input-border-radius);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    animation: messageSlideIn 0.4s ease-out;
}

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

.message.show {
    display: flex;
}

.message-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

/* Success Message */
.success-message {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.success-message .message-icon {
    color: var(--color-success);
}

/* Error Message */
.error-message {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.error-message .message-icon {
    color: var(--color-error);
}

/* ===================================
   PRIVACY NOTE
   =================================== */
.privacy-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-align: center;
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

/* Push privacy note to bottom on mobile/tablet - defined in media queries */

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

/* Tablets (landscape) */
@media (max-width: 968px) {
    .popover-card {
        grid-template-columns: 1fr;
        max-width: 600px;
        max-height: 85vh; /* Keep within viewport */
        display: flex;
        flex-direction: column;
    }
    
    .left-column {
        padding: 0;
        min-height: 250px;
        max-height: 30vh; /* Limit image section height */
        flex-shrink: 0; /* Prevent shrinking */
    }
    
    .app-mockup {
        max-height: 350px;
    }
    
    .right-column {
        padding: var(--spacing-lg);
        flex: 1;
        overflow-y: auto; /* Make text column scrollable */
        min-height: 0; /* Allow flexbox to work properly */
        justify-content: flex-start; /* Align to top instead of center */
        display: flex;
        flex-direction: column;
    }
    
    /* Reorder content on mobile/tablet */
    .benefits-list {
        order: 5; /* Move below form */
        margin-top: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .form-intro {
        order: 3;
    }
    
    .waitlist-form {
        order: 4;
    }
    
    .privacy-note {
        margin-top: auto; /* Push to bottom */
        margin-bottom: 0;
        padding-top: var(--spacing-md);
        order: 10; /* Ensure it's last */
    }
    
    .title {
        font-size: var(--font-size-xl);
    }
}

/* Mobile devices */
@media (max-width: 640px) {
    .container {
        padding: var(--spacing-sm);
    }
    
    .popover-card {
        border-radius: 16px;
        max-height: 90vh; /* Keep within viewport */
    }
    
    .left-column {
        padding: 0;
        min-height: 200px;
        max-height: 30vh; /* Limit image section height */
    }
    
    .app-mockup {
        max-height: 250px;
    }
    
    .right-column {
        padding: var(--spacing-md);
        flex: 1;
        overflow-y: auto; /* Scrollable on mobile */
        min-height: 0; /* Allow flexbox to work properly */
        justify-content: flex-start; /* Align to top instead of center */
        display: flex;
        flex-direction: column;
    }
    
    /* Reorder content on mobile */
    .benefits-list {
        order: 5; /* Move below form */
        margin-top: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }
    
    .form-intro {
        order: 3;
    }
    
    .waitlist-form {
        order: 4;
    }
    
    .privacy-note {
        margin-top: auto; /* Push to bottom */
        margin-bottom: 0;
        padding-top: var(--spacing-md);
        order: 10; /* Ensure it's last */
    }
    
    .logo {
        height: 32px;
    }
    
    .title {
        font-size: 1.5rem;
    }
    
    .description {
        font-size: var(--font-size-base);
    }
    
    .form-group {
        flex-direction: column;
    }
    
    .email-input,
    .submit-button {
        width: 100%;
        padding: 0.875rem 1rem;
    }
}

/* Small mobile devices */
@media (max-width: 375px) {
    :root {
        --font-size-base: 15px;
    }
    
    .container {
        padding: var(--spacing-xs);
    }
    
    .left-column,
    .right-column {
        padding: var(--spacing-sm);
    }
    
    .title {
        font-size: 1.375rem;
    }
}

/* ===================================
   DARK MODE SUPPORT (Optional)
   =================================== */
@media (prefers-color-scheme: dark) {
    /* If you want to support dark mode, uncomment and customize:
    :root {
        --color-popover-bg: #1a1a1a;
        --color-text-primary: #ffffff;
        --color-text-secondary: #9ca3af;
    }
    */
}

/* ===================================
   PRINT STYLES
   =================================== */
@media print {
    body {
        background-color: #ffffff;
    }
    
    .popover-card {
        box-shadow: none;
        border: 1px solid #e5e7eb;
    }
    
    .submit-button {
        display: none;
    }
}