@font-face {
    font-family: 'Arap Italic';
    src: url('assets/arap-italic.ttf') format('truetype');
}

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

body {
    font-family: 'Poppins', sans-serif;
    background-color: #FDF6EC;
    min-height: 100vh;
    overflow: hidden;
}

.container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

/* Wrapper - the envelope container */
.wrapper {
    --envelope-width: 280px;
    --envelope-height: 180px;
    height: var(--envelope-height);
    width: var(--envelope-width);
    background-color: #DE4A3B;
    position: relative;
    display: flex;
    justify-content: center;
    z-index: 0;
    cursor: pointer;
    overflow: hidden;
    /* Hide letter overflow when closed */
}

/* Allow letter to show above envelope when open */
.wrapper.open {
    overflow: visible;
}

/* Lid base styles */
.lid {
    position: absolute;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    border-right: calc(var(--envelope-width) / 2) solid transparent;
    border-bottom: calc(var(--envelope-height) / 2) solid transparent;
    border-left: calc(var(--envelope-width) / 2) solid transparent;
    transform-origin: top;
    transition: transform 0.25s linear;
}

/* Lid when closed */
.lid.one {
    border-top: calc(var(--envelope-height) / 2) solid #F06A5A;
    transform: rotateX(0deg);
    z-index: 3;
    transition-delay: 0.75s;
}

/* Lid when opened */
.lid.two {
    border-top: calc(var(--envelope-height) / 2) solid #DE4A3B;
    transform: rotateX(90deg);
    z-index: 1;
    transition-delay: 0.5s;
}

/* Envelope body */
.envelope {
    position: absolute;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    border-top: calc(var(--envelope-height) / 2) solid transparent;
    border-right: calc(var(--envelope-width) / 2) solid #FFB6C1;
    border-bottom: calc(var(--envelope-height) / 2) solid #FFB6C1;
    border-left: calc(var(--envelope-width) / 2) solid #F5A0AB;
    z-index: 3;
}

/* Letter/Card inside */
.letter {
    position: absolute;
    top: 0;
    width: 85%;
    height: 300px;
    background-color: white;
    border-radius: 10px;
    z-index: 2;
    transition: transform 0.5s ease, clip-path 0.5s ease, background 0.5s ease;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    /* Clip letter when closed - hide everything below envelope height */
    clip-path: inset(0 0 calc(100% - 180px) 0);
}

/* Love background when YES is clicked */
.letter.show-love {
    background:
        linear-gradient(rgba(255, 255, 255, 0.5), rgba(255, 255, 255, 0.5)),
        url('assets/love.jpeg') center/80% no-repeat;
    background-color: white;
}

/* Envelope front content layer - positioned on envelope body, not lid */
.envelope-front {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 50%;
    z-index: 4;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

/* Open state animations */
.wrapper.open .lid.one {
    transform: rotateX(90deg);
    transition-delay: 0s;
    pointer-events: none;
}

.wrapper.open .lid.two {
    transform: rotateX(180deg);
    transition-delay: 0.25s;
    pointer-events: none;
}

.wrapper.open .letter {
    transform: translateY(-200px);
    transition-delay: 0.5s;
    /* Show full content including both buttons */
    clip-path: inset(0 0 calc(100% - 270px) 0);
}

.wrapper.open .envelope {
    pointer-events: none;
}

.stamp {
    position: absolute;
    top: 0.3rem;
    right: 0.8rem;
    width: 3rem;
    height: 3rem;
    z-index: 5;
    transform: rotate(3deg);
}

.stamp img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.love-sticker {
    position: absolute;
    bottom: 0.3rem;
    right: 0.8rem;
    width: 2.5rem;
    height: 2.5rem;
    transform: rotate(-10deg);
    z-index: 5;
}

.love-sticker img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.love-sticker-left {
    position: absolute;
    top: 55%;
    left: 1.5rem;
    width: 2.5rem;
    height: 2.5rem;
    transform: rotate(15deg);
    z-index: 5;
}

.love-sticker-left img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.message-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    z-index: 1;
}

.message {
    color: #8B3A3A;
    font-size: 1.3rem;
    font-family: 'Caveat', cursive;
    font-weight: 600;
}

.nepali-text {
    color: #8B3A3A;
    font-size: 1.2rem;
    font-family: 'Arap Italic', serif;
    font-weight: 400;
}

.screen {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.screen.active {
    display: flex;
    animation: fadeInUp 0.6s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.question {
    color: #E74C3C;
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
    text-align: center;
}

.buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    width: 100%;
    position: relative;
    flex: 1;
    justify-content: center;
}

.yes-btn {
    background-color: #E74C3C;
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

.yes-btn:hover {
    background-color: #D64434;
    transform: scale(1.05);
}

.no-btn {
    background-color: #ffcdd2;
    color: #c62828;
    padding: 0.4rem 0.8rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    border: 2px solid #e57373;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

.no-btn:hover {
    transform: scale(1.05);
}

.gif-container {
    background: white;
    padding: 0.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transform: rotate(-3deg);
    width: fit-content;
}

.gif-container img {
    width: 8rem;
    height: 8rem;
    object-fit: cover;
    border-radius: 0.25rem;
}

.yay {
    color: #E74C3C;
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
}

#successScreen {
    gap: 0.5rem;
    padding: 1rem;
}

.email-title {
    color: #E74C3C;
    font-size: 1rem;
    font-weight: 800;
    text-align: center;
    padding: 1rem;
}

.email-subtitle {
    font-size: 0.75rem;
    color: #E74C3C;
    text-align: center;
    margin-bottom: 1rem;
}

#emailInput {
    border-radius: 0.5rem;
    padding: 1rem;
    width: 100%;
    border: none;
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.submit-btn {
    background-color: #E74C3C;
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-btn:hover {
    background-color: #D64434;
}

.thanks-text {
    color: #E74C3C;
    font-size: 1rem;
    font-weight: 800;
    text-align: center;
    padding: 2rem;
}

@media (min-width: 480px) {
    .wrapper {
        --envelope-width: 360px;
        --envelope-height: 230px;
    }

    .letter {
        height: 380px;
    }

    .wrapper.open .letter {
        transform: translateY(-240px);
        clip-path: inset(0 0 calc(100% - 320px) 0);
    }

    .stamp {
        width: 3.5rem;
        height: 3.5rem;
        top: 0.5rem;
        right: 1rem;
    }

    .love-sticker {
        width: 3rem;
        height: 3rem;
        bottom: 0.5rem;
        right: 1rem;
    }

    .love-sticker-left {
        width: 3rem;
        height: 3rem;
        left: 2rem;
    }

    .message {
        font-size: 1.8rem;
    }

    .nepali-text {
        font-size: 2.2rem;
    }

    .question {
        font-size: 2rem;
    }

    .yes-btn {
        padding: 0.6rem 2rem;
        font-size: 1.1rem;
    }

    .no-btn {
        padding: 0.5rem 1rem;
        font-size: 0.85rem;
    }
}

@media (min-width: 768px) {
    .wrapper {
        --envelope-width: 450px;
        --envelope-height: 290px;
    }

    .letter {
        height: 450px;
        padding: 2rem;
    }

    .wrapper.open .letter {
        transform: translateY(-280px);
        clip-path: inset(0 0 calc(100% - 380px) 0);
    }

    .stamp {
        width: 4rem;
        height: 4rem;
        top: 0.5rem;
        right: 1.5rem;
    }

    .love-sticker {
        width: 3.5rem;
        height: 3.5rem;
        bottom: 0.8rem;
        right: 1.5rem;
    }

    .love-sticker-left {
        width: 3.5rem;
        height: 3.5rem;
        left: 2.5rem;
    }

    .message {
        font-size: 2rem;
    }

    .nepali-text {
        font-size: 1.5rem;
    }

    .question {
        font-size: 2.5rem;
    }

    .yes-btn {
        padding: 0.75rem 2.5rem;
        font-size: 1.25rem;
    }

    .no-btn {
        padding: 0.6rem 1.25rem;
        font-size: 0.9rem;
    }

    .gif-container img {
        width: 10rem;
        height: 10rem;
    }

    .yay {
        font-size: 2.5rem;
        transform: translateY(-5rem);
    }
}