/* Base Variables */
:root {
    /* Color Palette */
    --color-bg: #000;
    --color-fg: #fdf6e7;
    --color-accent-bg: #26334fb3;
    --color-secondary-bg: #326fc9;
    --color-tertiary-bg: #0a2040;
    --color-table-header-bg: #0c3159;
    --color-accent-border: #3c87c9;
    --color-border: #214870;
    --color-error-bg: #8b0000;
    --color-success-bg: #006633;

    /* Timeline Colors */
    --color-timeline-line: #3c87c9;
    --color-timeline-marker: #3c87c9;
    --color-timeline-time: #3c87c9;
    --color-timeline-speaker: #c8c8aa;

    /* Common Values */
    --border-radius-sm: 0.5em;
    --border-radius-md: 1em;
    --border-radius-lg: 2em;
    --border-radius-xl: 3em;
    --font-family: "Oxanium", sans-serif;
}

/* Base Styles */
body {
    font-family: var(--font-family);
    margin: 0;
    background-color: var(--color-bg);
    color: var(--color-fg);
}

a {
    color: var(--color-fg);
}

/* Common Classes */
.section-title {
    font-size: 3em;
    margin-bottom: 0;
}

.section-p {
    font-size: 1.1em;
}

.text-large {
    font-size: 1.2em;
}

.big-number {
    font-size: 3em;
    font-weight: bold;
}

/* Common Layout Components */
section {
    display: flex;
    align-items: center;
}

.about,
.speakers,
.sponsors,
.timeline,
.location,
.event-concept,
.why-attend {
    padding-top: 12em;
    justify-content: center;
    flex-direction: column;
}

.why-attend {
    justify-content: center;
    flex-direction: column;
    color: var(--color-fg);
    text-align: center;
    background-color: var(--color-bg);
    padding: 2em;
    padding-top: 12em;
}

.why-attend-container {
    max-width: 50em;
}

.why-attend-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(20em, 1fr));
    gap: 2em;
    margin-top: 3em;
}

.why-attend-item {
    background-color: var(--color-tertiary-bg);
    padding: 2em;
    border-radius: var(--border-radius-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid var(--color-accent-border);
}

.why-attend-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
}

.why-attend-icon {
    font-size: 2.5em;
    margin-bottom: 0.5em;
}

.why-attend-item h3 {
    margin: 0.5em 0;
    font-size: 1.3em;
}

.why-attend-item p {
    color: var(--color-fg);
    line-height: 1.6;
}

.intro-buttons {
    display: flex;
    align-items: center;
}

/* Button System */
.btn {
    display: inline-block;
    text-decoration: none;
    padding: 0.7em 2em;
    border-radius: var(--border-radius-lg);
    border: 2px solid var(--color-fg);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    background-color: var(--color-secondary-bg);
    color: var(--color-fg);
    transition: background-color 0.2s ease, color 0.2s ease;
    font-size: medium;
    font-family: var(--font-family);
}

.btn:hover {
    background-color: var(--color-fg);
    color: var(--color-bg);
}

.btn-secondary {
    background-color: var(--color-tertiary-bg);
}

.btn-large {
    padding-left: 3em;
    padding-right: 3em;
    font-size: larger;
}

.btn-register {
    margin-right: 1em;
}

.btn-icon {
    margin: 0 0.5em;
    text-decoration: none;
}

.btn-icon:hover {
    filter: contrast(0.5);
}

.btn-outline {
    background-color: transparent;
}

.btn-full-width {
    width: 100%;
    max-width: 20em;
    margin: 0 auto;
}

.btn-right-margin {
    margin-right: 1em;
}

/* Additional utility classes for spacing and positioning */
.mt-2 {
    margin-top: 2em;
}

.mb-1 {
    margin-bottom: 1em;
}

.mb-2 {
    margin-bottom: 2em;
}

.mt-05 {
    margin-top: 0.5em;
}

.ml-1 {
    margin-left: 1em;
}

.ml-15 {
    margin-left: 1.5em;
}

/* Header */
header {
    position: fixed;
    left: 0;
    right: 0;
    top: 1em;
    display: flex;
    justify-content: center;
    font-size: larger;
    z-index: 1000;
}

header a {
    text-decoration: none;
}

.header-container {
    border-radius: var(--border-radius-xl);
    padding: 0.8em 1.5em;
    gap: 1.5em;
    display: flex;
    font-weight: 500;
    background: var(--color-accent-bg);
    backdrop-filter: blur(5px);
    border: 2px solid var(--color-accent-border);
}

/* Intro Section */
.intro {
    height: 100vh;
    width: 100svw;
    background-image: url("/assets/img/intro.webp");
    background-size: cover;
    background-position: center;
}

.intro-img-container {
    flex-grow: 1;
    display: flex;
    justify-content: center;
}

.intro-content {
    flex-grow: 1;
    margin-left: 5em;
}

.intro-title {
    font-size: 5em;
    font-weight: 900;
    margin-bottom: 0;
}

.intro-slogan {
    font-size: 2.5em;
    font-weight: 500;
    margin-top: 0;
}

/* About Section */
.about-logo {
    background-color: var(--color-accent-bg);
    border-radius: 50%;
    padding: 1em;
}

.about-title-container,
.speakers-title-container,
.timeline-title-container,
.location-title-container,
.sponsors-title-container,
.concept-title-container {
    max-width: 50em;
    text-align: center;
    margin-bottom: 2em;
}

.about-title-container .section-p {
    padding-left: 1em;
    padding-right: 1em;
}

.about-info-container {
    max-width: 60em;
    text-align: center;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(10em, 1fr));
    gap: 2em;
    padding: 1em;
}

.about-info-container div {
    border: 2px var(--color-fg) solid;
    border-radius: var(--border-radius-md);
    background-color: var(--color-secondary-bg);
    text-align: center;
    padding: 1.5em;
    font-size: 1.2em;
    transition: transform 0.2s;
}

.about-info-container div:hover {
    transform: translateY(-5px);
}

/* Speakers Section */
.speaker-picture {
    border-radius: 50%;
    margin-bottom: 0.7em;
}

.speakers-profiles-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2em;
    padding: 2em;
}

.speakers-profiles-content {
    text-align: center;
}

.speakers-profiles-container div {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-radius: var(--border-radius-md);
    padding: 1em;
    width: 12em;
    height: auto;
    text-align: center;
    background-color: var(--color-tertiary-bg);
    transition: transform 0.2s;
}

.speakers-profiles-container div strong {
    font-size: large;
}

.speakers-profiles-container div:hover {
    transform: translateY(-5px);
}

/* Timeline Section */
.timeline {
    position: relative;
}

.timeline-title-container {
    margin-bottom: 3em;
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 4em 0;
}

.timeline-center-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 0.5em;
    background: linear-gradient(
        to bottom,
        transparent,
        var(--color-timeline-line) 15%,
        var(--color-timeline-line) 85%,
        transparent
    );
    transform: translateX(-50%);
    z-index: 1;
    border-radius: 10px;
}

.timeline-block {
    position: relative;
    margin: 8em 0;
    width: 100%;
    height: 150px;
    display: flex;
    align-items: center;
}

.timeline-block:nth-child(even) {
    justify-content: flex-start;
}

.timeline-block:nth-child(odd) {
    justify-content: flex-end;
}

.timeline-block:nth-child(odd) .timeline-content {
    margin-right: -15%;
}

.timeline-block:nth-child(even) .timeline-content {
    margin-left: -15%;
}

.timeline-marker {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 18px;
    height: 18px;
    background: var(--color-timeline-marker);
    border-radius: 50%;
    z-index: 2;
}

.timeline-content {
    width: 40%;
    min-width: 280px;
    background: var(--color-tertiary-bg);
    border-radius: 8px;
    padding: 2em;
    position: relative;
}

.timeline-block:nth-child(odd) .timeline-content:before {
    content: "";
    position: absolute;
    top: 50%;
    left: -15px;
    transform: translateY(-50%);
    border-width: 15px 15px 15px 0;
    border-style: solid;
    border-color: transparent var(--color-tertiary-bg) transparent transparent;
}

.timeline-block:nth-child(even) .timeline-content:before {
    content: "";
    position: absolute;
    top: 50%;
    right: -15px;
    transform: translateY(-50%);
    border-width: 15px 0 15px 15px;
    border-style: solid;
    border-color: transparent transparent transparent var(--color-tertiary-bg);
}

.timeline-block:nth-child(odd) .timeline-content:after,
.timeline-block:nth-child(even) .timeline-content:after {
    background-color: var(--color-timeline-marker);
}

.timeline-time {
    font-size: 1.8em;
    font-weight: bold;
    color: var(--color-timeline-time);
    margin-bottom: 0.7em;
    font-family: var(--font-family);
}

.timeline-event {
    font-size: 1.5em;
    font-weight: 600;
    margin-bottom: 0.3em;
}

.timeline-event-desc {
    font-style: normal;
    margin-bottom: 0.7em;
}

.timeline-speaker {
    font-style: italic;
    color: var(--color-timeline-speaker);
}

.timeline-info-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 4em;
    margin-bottom: 2em;
}

.timeline-tables {
    display: flex;
}

.mobile-timeline {
    display: none;
    margin: 0em 1.5em;
    overflow-x: auto;
}

/* Table Styles */
table,
.schedule-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 1em;
    text-align: left;
    background-color: var(--color-tertiary-bg);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

table th,
.schedule-table th,
table td,
.schedule-table td {
    padding: 1em;
    border-bottom: 1px solid var(--color-border);
}

table th,
.schedule-table th {
    background-color: var(--color-table-header-bg);
    font-weight: bold;
    text-transform: uppercase;
}

table tr:last-child td,
.schedule-table tr:last-child td {
    border-bottom: none;
}

.schedule-table th {
    background-color: var(--color-secondary-bg);
    padding: 1em 0.5em;
    text-align: left;
}

.schedule-table td {
    padding: 0.8em 0.5em;
    border-bottom: 1px solid var(--color-accent-border);
}

.schedule-table tr:nth-child(even) {
    background-color: var(--color-accent-bg);
}

/* Location Section */
.location {
    flex-direction: column;
    padding: 6em;
}

.location-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2em;
    width: 100%;
}

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

.map-container {
    width: 80%;
    height: 450px;
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.map-container iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Event Concept Section */
.event-concept {
    flex-direction: column;
    color: var(--color-fg);
    text-align: center;
}

.concept-info-container {
    max-width: 50em;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(20em, 1fr));
    gap: 2em;
    padding: 1em;
}

.concept-info-container div {
    background-color: var(--color-accent-bg);
    padding: 1.5em;
    border-radius: var(--border-radius-md);
    transition: transform 0.2s;
}

.concept-info-container div:hover {
    transform: translateY(-5px);
}

/* Sponsors Section */
.sponsors-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.sponsors-container {
    display: flex;
    flex-direction: column;
    max-width: 60em;
    gap: 3em;
    padding: 1em;
}

.sponsor-tier {
    text-align: center;
    margin-bottom: 2em;
}

.sponsor-tier h2 {
    margin-bottom: 1.5em;
    font-size: 1.8em;
}

.sponsor-logos {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2em;
}

.sponsor-logos div {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1.5em;
    border-radius: var(--border-radius-md);
    background-color: var(--color-tertiary-bg);
    min-height: 8em;
    width: 14em;
    transition: transform 0.2s;
    padding-top: 2em;
}

/* New styles for Ana Sponsorlar */
.sponsor-tier:first-child .sponsor-logos div {
    width: 18em;
    padding: 2em;
}

.sponsor-tier:first-child .sponsor-logo {
    width: 12em;
    height: auto;
}

.sponsor-logos div:hover {
    transform: translateY(-5px);
}

.sponsor-name-only {
    font-size: 1.5em !important;
    margin-top: 0 !important;
}

.sponsor-logos div strong {
    margin-top: 1em;
    font-size: 1.2em;
    display: block;
}

.company-logo,
.sponsor-logo {
    border-radius: 0.3em;
    background-color: #fff;
}

/* Footer */
footer {
    background-color: var(--color-tertiary-bg);
    padding: 2em 1em;
    text-align: center;
    border-top: 2px solid var(--color-border);
    margin-top: 3em;
}

.footer-container {
    display: flex;
    flex-direction: column;
    gap: 1em;
    align-items: center;
    max-width: 1200px;
}

.footer-social {
    display: flex;
    gap: 1em;
    font-size: 0.9em;
    justify-content: center;
}

.footer-social a {
    text-decoration: none;
    font-size: 1.2em;
    transition: color 0.3s ease;
}

.footer-social a:hover {
    color: var(--color-secondary-bg);
}

/* Media Queries */
@media (max-width: 1000px) {
    .header-container a {
        display: none;
    }

    .header-container a:first-child,
    .header-container a:last-child {
        display: inline;
    }

    .intro-buttons {
        justify-content: center;
    }

    .intro-content {
        text-align: center;
        margin-left: 1em;
        margin-right: 1em;
        border-radius: var(--border-radius-lg);
    }

    .about-info-container {
        grid-template-columns: 1fr;
        width: 80%;
        max-width: 20em;
        padding: 1em;
    }

    .about-info-container div {
        font-size: 1em;
        padding: 1em;
        word-wrap: break-word;
    }

    .timeline-info-container {
        flex-direction: column;
        gap: 2em;
        padding: 1em;
    }

    .timeline-tables {
        flex-direction: column;
        gap: 1em;
    }

    table {
        font-size: 0.9em;
    }

    iframe {
        width: 100%;
        height: 20em;
    }

    .location {
        padding-left: 1em;
        padding-right: 1em;
    }

    .concept-info-container {
        max-width: none;
        padding: 2em;
    }

    .speakers-profiles-container {
        gap: 1em;
        padding: 1em;
    }

    .speakers-profiles-container div {
        padding: 0.8em;
        width: 10em;
    }

    .speakers-profiles-container div i {
        font-size: 0.9em;
    }

    .speaker-picture {
        width: 80px;
        height: 80px;
    }

    .sponsor-logos div {
        padding: 1em;
        padding-top: 1.5em;
        width: 10em;
    }

    .sponsor-logos div strong {
        font-size: 1em;
    }

    .sponsor-tier:first-child .sponsor-logos div {
        width: 14em;
    }

    .sponsor-tier:first-child .sponsor-logo {
        width: 10em;
        height: auto;
    }
}

@media (max-width: 800px) {
    .desktop-timeline {
        display: none;
    }

    .mobile-timeline {
        display: block;
    }
}

@media (max-width: 768px) {
    /* Timeline Mobile Styles */
    .timeline-center-line {
        left: 50px;
    }

    .timeline-marker {
        left: 50px;
    }

    .timeline-block {
        justify-content: flex-start;
        margin-left: 70px;
    }

    .timeline-block:nth-child(even) {
        justify-content: flex-start;
    }

    .timeline-content {
        width: calc(100% - 100px);
        margin-left: 30px;
    }

    .timeline-block:nth-child(odd) .timeline-content:before {
        left: -15px;
    }

    .timeline-block:nth-child(even) .timeline-content:before {
        right: auto;
        left: -15px;
        border-width: 15px 15px 15px 0;
        border-color: transparent var(--color-tertiary-bg) transparent
            transparent;
    }

    .location-content {
        flex-direction: column;
    }

    .speakers-profiles-container {
        display: flex;
    }

    .speakers-profiles-container div {
        width: 40%;
        padding: 0.7em;
    }

    .sponsor-logos {
        display: flex;
        gap: 0.8em;
    }

    .sponsor-logos div {
        width: 35%;
    }

    .sponsor-logo {
        width: 6em;
        height: auto;
    }

    .main-sponsor-container {
        display: flex;
        justify-content: center;
    }
}

@media (max-width: 465px) {
    .table-time {
        text-align: center;
    }

    .btn-large {
        padding-left: 1em;
        padding-right: 1em;
    }

    .btn-register {
        margin-right: 0;
        width: 80%;
    }

    .intro-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1.5em;
    }

    .intro-slogan {
        font-size: 2.25em;
    }

    .intro-title {
        margin-top: 0;
    }

    .speakers-profiles-container div i {
        font-size: 0.8em;
    }
}

@media (max-width: 400px) {
    .btn-large {
        font-size: large;
    }

    .intro-slogan {
        font-size: 2em;
    }

    .speakers-profiles-container div strong {
        font-size: 0.9em;
    }
}