/* -------------------------------------------------------------
   MODERN MOBILE-FIRST ELEGANT WEDDING INVITATION CSS
   Replica of Reference Style with Premium Sage & Emerald Palette
   ------------------------------------------------------------- */

:root {
    /* Light Theme Palette */
    --bg-main: #f7f6f2;
    --card-bg: #ffffff;
    --card-border: #eeede7;
    --text-primary: #2b302c;
    --text-secondary: #6e7670;
    --text-muted: #959e97;
    --accent-sage: #3e6d54;
    --accent-sage-light: #f1f6f3;
    --accent-sage-border: #d4e2d9;
    --accent-sage-hover: #325843;
    --rsvp-no-border: #f0d6d6;
    --rsvp-no-text: #b65a5a;
    --rsvp-no-bg: #fffbfb;
    --shadow-card: 0 16px 48px rgba(0, 0, 0, 0.05), 0 4px 12px rgba(0, 0, 0, 0.02);
    --shadow-btn: 0 6px 20px rgba(62, 109, 84, 0.25);
    --font-script: 'Alex Brush', cursive;
    --font-serif: 'Cormorant Garamond', serif;
    --font-sans: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
    --radius-card: 28px;
    --radius-box: 18px;
    --radius-btn: 50px;
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

/* Dark Theme Palette */
[data-theme="dark"] {
    --bg-main: #0b120e;
    --card-bg: #142019;
    --card-border: #1f3127;
    --text-primary: #e6efe9;
    --text-secondary: #9cb0a3;
    --text-muted: #6e8275;
    --accent-sage: #5db385;
    --accent-sage-light: #1b2e23;
    --accent-sage-border: #284434;
    --accent-sage-hover: #73c498;
    --rsvp-no-border: #422525;
    --rsvp-no-text: #e68a8a;
    --rsvp-no-bg: #1e1515;
    --shadow-card: 0 16px 48px rgba(0, 0, 0, 0.4);
    --shadow-btn: 0 6px 20px rgba(93, 179, 133, 0.3);
}

/* Reset & Global Settings */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html, body {
    width: 100%;
    min-height: 100vh;
    font-family: var(--font-sans);
    background-color: var(--bg-main);
    color: var(--text-primary);
    overflow-x: hidden;
    transition: background-color 0.4s ease, color 0.4s ease;
}

/* Falling Petals Canvas */
#petalsCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

/* -------------------------------------------------------------
   LANDING / ENVELOPE COVER SCREEN
   ------------------------------------------------------------- */
.landing-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 9999;
    transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1), opacity 0.8s ease, visibility 0.8s;
}

.landing-screen.opened {
    transform: scale(1.06) translateY(-40px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.landing-card {
    width: 100%;
    max-width: 400px;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 48px 24px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    animation: landingPop 0.8s ease-out;
}

@keyframes landingPop {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}

.landing-monogram {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 3.8rem;
    font-weight: 500;
    color: var(--accent-sage);
    line-height: 1;
    letter-spacing: 2px;
    margin-bottom: 16px;
}

.landing-bismillah {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 24px;
}

.landing-tag {
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-transform: uppercase;
}

.landing-couple {
    font-family: var(--font-serif);
    font-size: 2.2rem;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.2;
    margin-bottom: 20px;
}

.landing-date-pill {
    display: inline-block;
    padding: 8px 18px;
    background-color: var(--accent-sage-light);
    border: 1px solid var(--accent-sage-border);
    border-radius: 30px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 2px;
    color: var(--accent-sage);
    margin-bottom: 32px;
}

.btn-open-invitation {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 18px 36px;
    border-radius: var(--radius-btn);
    background-color: var(--accent-sage);
    color: #ffffff;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 2px;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-btn);
    transition: var(--transition);
    animation: btnPulse 2s infinite ease-in-out;
}

@keyframes btnPulse {
    0%, 100% { transform: scale(1); box-shadow: var(--shadow-btn); }
    50% { transform: scale(1.04); box-shadow: 0 8px 25px rgba(62, 109, 84, 0.35); }
}

.btn-open-invitation:hover, .btn-open-invitation:active {
    background-color: var(--accent-sage-hover);
    transform: scale(1.05);
}

/* -------------------------------------------------------------
   TOP CONTROLS
   ------------------------------------------------------------- */
.top-controls {
    position: fixed;
    top: 16px;
    right: 16px;
    display: flex;
    gap: 10px;
    z-index: 100;
}

.control-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--accent-sage);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(8px);
    transition: var(--transition);
}

.control-btn:hover, .control-btn:active {
    transform: scale(1.08);
    background: var(--accent-sage-light);
}

.hidden {
    display: none !important;
}

/* -------------------------------------------------------------
   MAIN CARD & WRAPPER
   ------------------------------------------------------------- */
.main-wrapper {
    position: relative;
    z-index: 2;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px 16px;
}

.invitation-card {
    width: 100%;
    max-width: 440px;
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    padding: 40px 24px 32px 24px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    animation: fadeIn 0.8s ease-out;
}

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

/* Monogram & Header */
.card-header {
    margin-bottom: 24px;
}

.monogram {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 3.4rem;
    font-weight: 500;
    color: var(--accent-sage);
    line-height: 1.1;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.bismillah-text {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 20px;
    padding: 0 10px;
}

.sub-header-tag {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--text-muted);
    margin-bottom: 16px;
    text-transform: uppercase;
}

/* Divider with Diamond */
.divider {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 0 auto;
    width: 70%;
}

.divider .line {
    flex: 1;
    height: 1px;
    background: var(--card-border);
}

.divider .diamond {
    font-size: 0.5rem;
    color: var(--accent-sage);
    opacity: 0.8;
}

/* Card Body Content */
.card-body {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.invite-msg {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin: 24px 0 18px 0;
}

/* Couple Names */
.couple-names {
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.groom-name, .bride-name {
    font-family: var(--font-serif);
    font-size: 2.3rem;
    font-weight: 500;
    color: var(--text-primary);
    letter-spacing: 0.5px;
    line-height: 1.2;
}

.heart-icon {
    color: var(--accent-sage);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 2px 0;
    animation: heartPulse 2.5s infinite ease-in-out;
}

@keyframes heartPulse {
    0%, 100% { transform: scale(1); opacity: 0.85; }
    50% { transform: scale(1.2); opacity: 1; }
}

.request-tag {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    color: var(--text-muted);
    margin-bottom: 22px;
    text-transform: uppercase;
}

/* Event Details Box (3 Column Box) */
.event-details-box {
    width: 100%;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    border: 1px solid var(--accent-sage-border);
    border-radius: var(--radius-box);
    background-color: var(--accent-sage-light);
    padding: 16px 12px;
    margin-bottom: 24px;
    transition: var(--transition);
}

.detail-col {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 0 4px;
}

.detail-col.center-col {
    border-left: 1px solid var(--accent-sage-border);
    border-right: 1px solid var(--accent-sage-border);
    padding: 0 16px;
}

.month-title, .time-title {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 1.5px;
    color: var(--text-primary);
    text-transform: uppercase;
}

.year-sub, .event-sub {
    font-size: 0.72rem;
    color: var(--text-secondary);
    margin-top: 3px;
    font-weight: 400;
}

.date-num {
    font-family: var(--font-serif);
    font-size: 2.7rem;
    font-weight: 600;
    color: var(--accent-sage);
    line-height: 1;
}

/* Venue Container */
.venue-container {
    margin-bottom: 28px;
}

.venue-name {
    font-size: 0.9rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
    margin-bottom: 6px;
    text-transform: uppercase;
}

.venue-location {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.venue-location svg {
    color: var(--accent-sage);
}

/* Countdown Section */
.countdown-section {
    width: 100%;
    margin-bottom: 28px;
}

.section-title {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 2.5px;
    color: var(--text-muted);
    margin-bottom: 14px;
    text-transform: uppercase;
}

.timer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    width: 100%;
}

.timer-card {
    background: var(--accent-sage-light);
    border: 1px solid var(--card-border);
    border-radius: 14px;
    padding: 12px 4px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.timer-value {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    line-height: 1.1;
}

.timer-label {
    font-size: 0.6rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Action Buttons (Add to Calendar & Get Directions) */
.action-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    width: 100%;
    margin-bottom: 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 12px;
    border-radius: var(--radius-btn);
    font-family: var(--font-sans);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-action {
    background: var(--accent-sage-light);
    color: var(--text-primary);
    border: 1px solid var(--accent-sage-border);
}

.btn-action svg {
    color: var(--accent-sage);
}

.btn-action:hover, .btn-action:active {
    background: var(--accent-sage);
    color: #ffffff;
    border-color: var(--accent-sage);
}

.btn-action:hover svg, .btn-action:active svg {
    color: #ffffff;
}

/* RSVP Section */
.rsvp-section {
    width: 100%;
    margin-bottom: 24px;
}

.rsvp-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
}

.rsvp-btn {
    width: 100%;
    padding: 16px 20px;
    border-radius: var(--radius-btn);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 14px;
    cursor: pointer;
    transition: var(--transition);
    border: 1.5px solid transparent;
}

.rsvp-yes {
    background-color: var(--card-bg);
    border-color: var(--accent-sage);
    color: var(--accent-sage);
}

.rsvp-yes:hover, .rsvp-yes:active, .rsvp-yes.selected {
    background-color: var(--accent-sage);
    color: #ffffff;
    box-shadow: var(--shadow-btn);
}

.rsvp-no {
    background-color: var(--rsvp-no-bg);
    border-color: var(--rsvp-no-border);
    color: var(--rsvp-no-text);
}

.rsvp-no:hover, .rsvp-no:active, .rsvp-no.selected {
    background-color: var(--rsvp-no-text);
    color: #ffffff;
    border-color: var(--rsvp-no-text);
}

.rsvp-icon {
    font-weight: 700;
    font-size: 0.95rem;
}

/* Status Badge */
.rsvp-status-badge {
    margin-top: 14px;
    padding: 10px 16px;
    border-radius: 12px;
    font-size: 0.78rem;
    font-weight: 500;
    line-height: 1.4;
    animation: fadeIn 0.4s ease;
}

.rsvp-status-badge.yes {
    background: var(--accent-sage-light);
    color: var(--accent-sage);
    border: 1px solid var(--accent-sage-border);
}

.rsvp-status-badge.no {
    background: var(--rsvp-no-bg);
    color: var(--rsvp-no-text);
    border: 1px solid var(--rsvp-no-border);
}

/* Footer */
.card-footer {
    border-top: 1px solid var(--card-border);
    padding-top: 20px;
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.card-footer p {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.share-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--accent-sage);
    cursor: pointer;
    transition: var(--transition);
    padding: 6px 12px;
    border-radius: 20px;
}

.share-trigger:hover {
    background: var(--accent-sage-light);
}

/* Modal Popup */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.45);
    backdrop-filter: blur(5px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.modal-card {
    background: var(--card-bg);
    border-radius: 24px;
    width: 100%;
    max-width: 400px;
    padding: 30px 24px;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--card-border);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 18px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    line-height: 1;
}

.modal-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 6px;
    text-align: center;
}

.modal-subtitle {
    font-size: 0.78rem;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 20px;
}

.rsvp-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: left;
}

.form-group label {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    border: 1px solid var(--card-border);
    background: var(--accent-sage-light);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 0.85rem;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    border-color: var(--accent-sage);
    background: var(--card-bg);
}

.btn-submit {
    background: var(--accent-sage);
    color: #ffffff;
    padding: 14px;
    margin-top: 8px;
    font-size: 0.8rem;
}

.btn-submit:hover {
    background: var(--accent-sage-hover);
}

/* Small Screen Optimization */
@media (max-width: 360px) {
    .landing-card {
        padding: 36px 16px;
    }
    
    .landing-monogram {
        font-size: 3.2rem;
    }

    .landing-couple {
        font-size: 1.8rem;
    }

    .invitation-card {
        padding: 32px 16px 24px 16px;
    }

    .monogram {
        font-size: 2.8rem;
    }

    .groom-name, .bride-name {
        font-size: 1.9rem;
    }

    .date-num {
        font-size: 2.2rem;
    }

    .timer-value {
        font-size: 1.2rem;
    }

    .btn {
        font-size: 0.65rem;
        padding: 12px 8px;
    }
}