* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
    scrollbar-width: thin;
    scrollbar-color: #ffb6c1 #fffafb;
}

body {
    background-color: #fffafb;
    background-image: radial-gradient(circle at 15% 50%, rgba(255, 230, 240, 0.7), transparent 40%), radial-gradient(circle at 85% 30%, rgba(255, 240, 245, 0.8), transparent 50%);
    color: #5c434a;
    overflow-x: hidden;
    min-height: 100vh;
}

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: #fffafb;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s ease-out, visibility 0.8s ease-out;
}

.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.logo-symbol {
    font-family: 'Playfair Display', serif;
    font-size: 5rem;
    font-weight: 700;
    color: #ff3385;
    transition: transform 0.8s cubic-bezier(0.85, 0, 0.15, 1), opacity 0.8s ease;
}

.logo-symbol.expand {
    transform: translateY(-20px) scale(1.1);
    opacity: 0;
}

.progress-bar-container {
    width: 260px;
    height: 4px;
    background-color: rgba(255, 182, 193, 0.3);
    border-radius: 10px;
    overflow: hidden;
    transition: opacity 0.4s ease;
}

.progress-bar {
    height: 100%;
    width: 0%;
    background: #ff3385;
    border-radius: 10px;
}

.progress-bar-container.fade-out {
    opacity: 0;
}

.hidden {
    display: none !important;
}

h1 {
    font-family: 'Playfair Display', serif;
    color: #ff3385;
}

p {
    font-size: 1.2rem;
    color: #8c737b;
    line-height: 1.8;
    font-weight: 300;
    margin: 0 auto;
}

header {
    position: fixed;
    width: 100%;
    display: flex;
    justify-content: flex-end;
    padding: 20px 30px;
    z-index: 1500;
    pointer-events: none;
}

#header-h1 {
    font-size: 2.5rem;
    color: #ff3385;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    width: 60px;
    height: 60px;
    display: flex;
    justify-content: center;
    align-items: center;
    border-radius: 50%;
    box-shadow: 0 10px 25px rgba(255, 182, 193, 0.4);
    cursor: pointer;
    pointer-events: auto;
    transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    margin: 0;
}

#header-h1:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 35px rgba(255, 182, 193, 0.6);
}

.side-menu {
    height: 100vh;
    width: 320px;
    position: fixed;
    top: 0;
    right: -320px;
    background: rgba(255, 250, 251, 0.95);
    backdrop-filter: blur(25px);
    border-left: 1px solid rgba(255, 182, 193, 0.3);
    box-shadow: -15px 0 40px rgba(255, 182, 193, 0.15);
    transition: right 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
    display: flex;
    flex-direction: column;
    justify-content: center;
    z-index: 2000;
}

.side-menu.open {
    right: 0;
}

.side-menu ul {
    list-style: none;
    padding: 0 40px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.side-menu ul li a {
    text-decoration: none;
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    color: #ccaeb8;
    transition: all 0.3s ease;
    position: relative;
    display: inline-block;
}

.side-menu ul li a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0%;
    height: 2px;
    background: #ff3385;
    transition: width 0.4s ease;
}

.side-menu ul li a:hover {
    color: #ff3385;
    transform: translateX(15px);
}

.side-menu ul li a:hover::after {
    width: 100%;
}

.active_menu {
    color: #ff3385 !important;
    font-weight: 700;
}

.side-menu .close-btn {
    position: absolute;
    top: 30px;
    right: 30px;
    font-size: 2.5rem;
    background: none;
    border: none;
    color: #ccaeb8;
    cursor: pointer;
    transition: all 0.4s;
    font-family: 'Outfit', sans-serif;
}

.side-menu .close-btn:hover {
    color: #ff3385;
    transform: scale(1.2);
}

.start-presentation {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 2rem;
    max-width: 800px;
    margin: 0 auto;
    margin-bottom: 200px;
}

#hi {
    font-size: 5.5rem;
    margin-bottom: 1.5rem;
}

.start-presentation p {
    font-size: 1.5rem;
    max-width: 600px;
}

.reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 1s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

footer {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: #ffecf2;
    padding: 6rem 2rem 4rem;
    width: 100%;
    margin-top: 100px;
    color: #5c434a;
    position: relative;
    border-top-left-radius: 50% 100px;
    border-top-right-radius: 50% 100px;
}

footer p {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-style: italic;
    color: #ff3385;
}

.social_links {
    display: flex;
    gap: 2.5rem;
    margin-top: 2.5rem;
}

.social_button {
    background: #fff;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 10px 20px rgba(255, 182, 193, 0.3);
    transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    position: relative;
}

.social_button:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(255, 182, 193, 0.5);
}

.social_img {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: invert(34%) sepia(50%) saturate(6144%) hue-rotate(320deg) brightness(101%) contrast(106%);
}

.tooltip_text {
    visibility: hidden;
    background-color: #ff3385;
    color: #fff;
    text-align: center;
    border-radius: 20px;
    padding: 8px 16px;
    position: absolute;
    z-index: 100;
    bottom: 130%;
    left: 50%;
    transform: translateX(-50%) translateY(15px);
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
    font-size: 0.95rem;
    font-weight: 500;
    font-family: 'Outfit';
    box-shadow: 0 8px 20px rgba(255, 51, 133, 0.3);
}

.tooltip_text::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -6px;
    border-width: 6px;
    border-style: solid;
    border-color: #ff3385 transparent transparent transparent;
}

.social_button:hover .tooltip_text {
    visibility: visible;
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

@media (max-width: 768px) {
    #hi {
        font-size: 4rem;
    }
    footer {
        border-top-left-radius: 30% 50px;
        border-top-right-radius: 30% 50px;
    }
}